Dram Memory Slot (x2) Function
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Choose your iMac model
If you’re not sure which iMac you have, you can identify your iMac and then select it from the list below.
DRAM TUTORIAL ISCA 2002 Bruce Jacob David Wang University of Maryland once the data is valid on ALL of the bit lines, you can select a subset of the bits and send them. Interleaved memory is a design made to compensate for the relatively slow speed of Dynamic Random-Access Memory (DRAM) or core memory. This is done by spreading the memory addresses evenly across memory banks. The memory bank consists of multiple columns and rows of storage units spread across several chips. In dynamic RAM (DRAM), the most common type of RAM, a transistor and a capacitor pair up to make a memory cell. The capacitor holds a bit of information (in the form of a 1 or 0), while the transistor acts as a switch, allowing the control circuitry to change the state of the memory. On what substance are memory cells etched?
27-inch
24-inch
21.5-inch
*iMac (Retina 4K, 21.5-inch, 2019)*
*iMac (Retina 4K, 21.5-inch, 2017)*
*iMac (21.5-inch, 2017)*
*iMac (21.5 inch, Mid 2014)*
*iMac (21.5-inch, Late 2013)*
*iMac (21.5-inch, Late 2012)*
20-inch
DDR RAM or DDR SDRAM is a type of computer memory. It stands for: Double Data Rate Synchronous Dynamic Random Access Memory.So what does that mean? Dynamic Random Access Memory stands for DRAM or Dynamic RAM which is the more common memory found in a computer. I’ve had all kinds of issues on my EVGA x58 SLI LE and my 6 gigs of G.Skill. First board was rmaed with a dead ram slot. Its replacement currently sees all 6gb, but the memory settings in the BIOS have to be set a certain way, or I only get 2 or 4gb of usable memory in windows.
17-inch
* Memory is not removable by users on iMac (21.5-inch, Late 2012), iMac (21.5-inch, Late 2013), iMac (21.5-inch, Mid 2014), iMac (21.5-inch, 2017), iMac (Retina 4K, 21.5-inch, 2017) and iMac (Retina 4K, 21.5-inch, 2019). If the memory in one of these computers needs repair service, contact an Apple Retail Store or Apple Authorised Service Provider. If you’d like to upgrade the memory in one of these models, an Apple Authorised Service Provider can help. Before you schedule an appointment, confirm that the specific Apple Authorised Service Provider offers memory upgrade services.
Memory in iMac (21.5-inch, Late 2015) and iMac (Retina 4K, 21.5-inch, Late 2015) is not upgradeable.iMac (Retina 5K, 27-inch, 2020)
Get memory specifications for iMac (Retina 5K, 27-inch, 2020), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory128 GB (4 x 32 GB DIMMs)
For optimal memory performance, DIMMs should be the same capacity, speed and supplier. Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC4-21333
*Unbuffered
*Nonparity
*260-pin
*2666MHz DDR4 SDRAM
If you have mixed capacity DIMMs, see the install memory section for installation recommendations.iMac (Retina 5K, 27-inch, 2019)
Get memory specifications for iMac (Retina 5K, 27-inch, 2019), then learn how to install memory in this model.Dram Memory Slot (x2) Function ChartMemory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory64 GB (4 x 16 GB DIMMs)
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC4-21333
*Unbuffered
*Nonparity
*260-pin
*2666MHz DDR4 SDRAMiMac (Retina 5K, 27-inch, 2017)
Get memory specifications for iMac (Retina 5K, 27-inch, 2017), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory64 GB (4 x 16 GB DIMMs)
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
The Best 10 Casinos in Mobile, AL 1. Beau Rivage Resort & Casino. The woman then called security and had us escorted out. Very frustrating to say the. Wind Creek Casino and Hotel, Atmore. Food choices are very limited and there are no longer free drinks. Mobile, AL 36606 Mobile Greyhound Park 7101 Old Pascagoula Rd, Theodore, AL 36582 Club Casino 7790 Tanner Rd, Mobile, AL 36608 IP Casino Resort Spa 850 Bayview Avenue, Biloxi, MS 39530 Beau Rivage Resort & Casino 875 Beach Blvd, Biloxi, MS 39530. Gambling casinos near mobile alabama. CASINOS in & near MOBILE, ALABAMA - 2020 up-to-date list. Atmore Wind Creek Atmore Casino & Hotel. The Wind Creek, located in the town of Atmore and set in a modern building, has opened in December 2009. Pensacola Greyhound Track & Poker Room. Biloxi Palace Casino Resort. Biloxi Golden Nugget. Alabama currently has five casinos but only one is near Mobile, however there are nine large casinos only an hours drive away in Biloxi Mississippi. This guide has reviews on the top casinos near Mobile AL. Also shown are the casino floor size in square feet and the miles from Mobile with drive time. The casino pages have pictures, gaming details for slots, blackjack, poker, craps, roulette and other table games plus hotel descriptions, restaurants and maps.
*PC4-2400 (19200)
*Unbuffered
*Nonparity
*260-pin
*2400MHz DDR4 SDRAMiMac (Retina 5K, 27-inch, Late 2015)
Get memory specifications for iMac (Retina 5K, 27-inch, Late 2015), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GBMaximum memory32GB
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
39 Events make up the Dublin Poker Festival 2020 schedule, there is something for every players bankroll. Beautiful structures and deepstacks all make this a must play festival!! Hotel rooms from only €99 per night at the Bonnington Hotel mean you can stay at the venue and stroll to the tables without the need to step outside the front door. We pride ourselves in having a top class. Dublin poker festival 2019 results 2019.
*PC3-14900
*Unbuffered
*Nonparity
*204-pin
*1867MHz DDR3 SDRAMFor these 27-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (Retina 5K, 27-inch, Mid 2015)
*iMac (Retina 5K, 27-inch, Late 2014)
*iMac (27-inch, Late 2013)
*iMac (27-inch, Late 2012)Memory specifications
These iMac models feature Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GBMaximum memory32GB
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC3-12800
*Unbuffered
*Nonparity
*204-pin
*1600MHz DDR3 SDRAMInstalling memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Open the memory compartment door by pressing the small grey button located just above the AC power port:
*The memory compartment door will open as the button is pushed in. Remove the compartment door and set it aside:
*A diagram on the underside of the compartment door shows the memory cage levers and the orientation of the DIMM. Locate the two levers on the right and left sides of the memory cage. Push the two levers outwards to release the memory cage:
*After the memory cage has been released, pull the memory cage levers towards you, allowing access to each DIMM slot.
*Remove a DIMM by pulling the module straight up and out. Note the location of the notch on the bottom of the DIMM. When reinstalling DIMMs, the notch must be orientated correctly or the DIMM won’t fully insert:
*Replace or install a DIMM by setting it down into the slot and pressing firmly until you feel the DIMM click into the slot. When you insert a DIMM, make sure you align the notch on the DIMM to the DIMM slot. Find your model below for specific installation instructions and notch locations:
*iMac (Retina 5K, 27-inch, 2020) DIMMs have a notch on the bottom, slightly to the left of the centre. If your DIMMs are mixed in capacity, minimise the capacity difference between Channel A (slots 1 and 2) and Channel B (slots 3 and 4) when possible.
*iMac (Retina 5K, 27-inch, 2019) DIMMs have a notch on the bottom, slightly to the left of the centre:
*iMac (27-inch, Late 2012) and iMac (Retina 5K, 27-inch, 2017) DIMMs have a notch on the bottom left:
*iMac (27-inch, Late 2013) and iMac (Retina 5K, 27-inch, Late 2014, Mid 2015, and Late 2015) DIMMs have a notch on the bottom right:
*After you’ve installed all of your DIMMs, push both memory cage levers back into the housing until they’ve locked into place:
*Replace the memory compartment door. You don’t need to press the compartment door release button when replacing the compartment door.
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.
Your iMac performs a memory initialisation procedure when you first turn it on after upgrading memory or rearranging DIMMs. This process can take 30 seconds or more, and the display of your iMac remains dark until it’s finished. Make sure you let the memory initialisation complete.For these 27-inch and 21.5-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (27-inch, Mid 2011)
*iMac (21.5-inch, Mid 2011)
*iMac (27-inch, Mid 2010)
*iMac (21.5-inch, Mid 2010)
*iMac (27-inch, Late 2009)
*iMac (21.5-inch, Late 2009)Memory specificationsDram Memory Slot (x2) FunctioningNumber of memory slots4Base memory4 GB (but is configured to order)Maximum memory16GB
For iMac (Late 2009), you can use 2 GB or 4 GB RAM SO-DIMMs of 1066MHz DDR3 SDRAM in each slot. For iMac (Mid 2010) and iMac (Mid 2011), use 2 GB or 4 GB RAM SO-DIMMs of 1333MHz DDR3 SDRAM in each slot.
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:iMac (Mid 2011)iMac (Mid 2010)iMac (Late 2009)PC3-10600PC3-10600PC3-8500UnbufferedUnbufferedUnbufferedNonparityNonparityNonparity204-pin204-pin204-pin1333MHz DDR3 SDRAM1333MHz DDR3 SDRAM1066MHz DDR3 SDRAM
i5 and i7 Quad Core iMac computers come with both top memory slots populated. These computers will not start up if only a single DIMM is installed in any bottom slot; these computers should operate normally with a single DIMM installed in any top slot.
Core Duo iMac computers should operate normally with a single DIMM installed in any slot, top or bottom. (’Top’ and ’bottom’ slots refer to the orientation of the slots in the pictures below. ’Top’ refers to the slots closest to the display; ’bottom’ refers to the slots closest to the stand.)Installing memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Philips screwdriver, remove the RAM access door in the bottom of your computer:
*Remove the access door and set it aside.
*Untuck the tab in the memory compartment. If you’re replacing a memory module, gently pull the tab to eject any installed memory module:
*Insert your new or replacement SO-DIMM into the empty slot, noting the orientation of the keyway of the SO-DIMM as shown below.
*After you’ve inserted it, press the DIMM up into the slot. There should be a slight click when you seat the memory correctly:
*Tuck the tabs above the memory DIMMs, and reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.For these 24-inch and 20-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (24-inch, Early 2009)
*iMac (20-inch, Early 2009)
*iMac (24-inch, Early 2008)
*iMac (20-inch, Early 2008)
*iMac (24-inch Mid 2007)
*iMac (20-inch, Mid 2007)Memory specifications
These iMac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.
The maximum amount of random-access memory (RAM) you can install in each computer is:ComputerMemory TypeMaximum MemoryiMac (Mid 2007)DDR24 GB (2 x 2 GB)iMac (Early 2008)DDR24 GB (2 x 2 GB)iMac (Early 2009)DDR38 GB (2 x 4 GB)
You can use a 1 GB or 2 GB RAM module in each slot for iMac (Mid 2007) and iMac (Early 2008). Use 1 GB, 2 GB or 4 GB modules in each slot for the iMac (Early 2009).
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:iMac (Mid 2007)iMac (Early 2008)iMac (Early 2009)PC2-5300PC2-6400PC3-8500UnbufferedUnbufferedUnbufferedNonparityNonparityNonparity200-pin200-pin204-pin667MHz DDR2 SDRAM800MHz DDR2 SDRAM1066MHz DDR3 SDRAM
DIMMs with any of the following features aren’t supported:Dram Memory Slot (x2) Function Tool
*Registers or buffers
*PLLs
*Error-correcting code (ECC)
*Parity
*Extended data out (EDO) RAMInstalling memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After your iMac has cooled down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Philips screwdriver, remove the RAM access door in the bottom of the computer:
*Remove the access door and set it aside.
*Untuck the tab in the memory compartment. If you’re replacing a memory module, untuck the tab and pull it to eject any installed memory module:
*Insert your new or replacement RAM SO-DIMM into the empty slot, noting the orientation of the keyway of the SO-DIMM as shown above.
*After you’ve inserted it, press the DIMM up into the slot. There should be a slight click when you seat the memory correctly.
*Tuck the tabs above the memory DIMMs, and reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.For these 20-inch and 17-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (20-inch Late 2006)
*iMac (17-inch, Late 2006 CD)
*iMac (17-inch, Late 2006)
*iMac (17-inch, Mid 2006)
*iMac (20-inch, Early 2006)
*iMac (17-inch, Early 2006)Memory specificationsNumber of memory slots2Base memory1 GBTwo 512 MB DIMMs; one in each of the memory slotsiMac (Late 2006)512 MBOne DDR2 SDRAM installed into the top slotiMac (17-inch Late 2006 CD)512 MBTwo 256 MB DIMMs; one in each of the memory slotsiMac (Mid 2006)512 MBOne DDR2 SDRAM installed into the top slotiMac (Early 2006)Maximum memory4 GB2 GB SO-DIMM in each of the two slots*iMac (Late 2006)2 GB1 GB SO-DIMM in each of the two slotsiMac (17-inch Late 2006 CD)
iMac (Early 2006)Memory card specificationsCompatible:
- Small Outline Dual Inline Memory Module (DDR SO-DIMM) format
- PC2-5300
- Nonparity
- 200-pin
- 667 MHz
- DDR3 SDRAMNot compatible:
- Registers or buffers
- PLLs
- ECC
- Parity
- EDO RAM
For best performance, fill both memory slots, installing an equal memory module in each slot.
*iMac (Late 2006) uses a maximum of 3GB of RAM.Installing memory in the bottom slot
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Phillips screwdriver, remove the RAM access door on the bottom of the iMac and set it aside:
*Move the DIMM ejector clips to their fully open position:
*Insert your RAM SO-DIMM into the bottom slot, keeping in mind the orientation of the keyed SO-DIMM:
*After you’ve inserted it, press the DIMM up into the slot with your thumbs. Don’t use the DIMM ejector clips to push in the DIMM, as this may damage the SDRAM DIMM.There should be a slight click when you seat the memory fully.
*Close the ejector clips:
*Reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.Replacing memory in the top slot
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Phillips screwdriver, remove the RAM access door on the bottom of the iMac and set it aside:
*Pull the two levers on each side of the memory compartment to eject the memory module that’s already installed:
*Remove the memory module from your iMac as shown below:
*Insert your RAM SO-DIMM into the top slot, noting the orientation of the keyed SO-DIMM:
*After you’ve inserted it, press the DIMM up into the slot with your thumbs. Don’t use the DIMM ejector clips to push in the DIMM, as this may damage the SDRAM DIMM.There should be a slight click when you seat the memory fully.
*Close the ejector clips:
*Reinstall the memory access do
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Choose your iMac model
If you’re not sure which iMac you have, you can identify your iMac and then select it from the list below.
DRAM TUTORIAL ISCA 2002 Bruce Jacob David Wang University of Maryland once the data is valid on ALL of the bit lines, you can select a subset of the bits and send them. Interleaved memory is a design made to compensate for the relatively slow speed of Dynamic Random-Access Memory (DRAM) or core memory. This is done by spreading the memory addresses evenly across memory banks. The memory bank consists of multiple columns and rows of storage units spread across several chips. In dynamic RAM (DRAM), the most common type of RAM, a transistor and a capacitor pair up to make a memory cell. The capacitor holds a bit of information (in the form of a 1 or 0), while the transistor acts as a switch, allowing the control circuitry to change the state of the memory. On what substance are memory cells etched?
27-inch
24-inch
21.5-inch
*iMac (Retina 4K, 21.5-inch, 2019)*
*iMac (Retina 4K, 21.5-inch, 2017)*
*iMac (21.5-inch, 2017)*
*iMac (21.5 inch, Mid 2014)*
*iMac (21.5-inch, Late 2013)*
*iMac (21.5-inch, Late 2012)*
20-inch
DDR RAM or DDR SDRAM is a type of computer memory. It stands for: Double Data Rate Synchronous Dynamic Random Access Memory.So what does that mean? Dynamic Random Access Memory stands for DRAM or Dynamic RAM which is the more common memory found in a computer. I’ve had all kinds of issues on my EVGA x58 SLI LE and my 6 gigs of G.Skill. First board was rmaed with a dead ram slot. Its replacement currently sees all 6gb, but the memory settings in the BIOS have to be set a certain way, or I only get 2 or 4gb of usable memory in windows.
17-inch
* Memory is not removable by users on iMac (21.5-inch, Late 2012), iMac (21.5-inch, Late 2013), iMac (21.5-inch, Mid 2014), iMac (21.5-inch, 2017), iMac (Retina 4K, 21.5-inch, 2017) and iMac (Retina 4K, 21.5-inch, 2019). If the memory in one of these computers needs repair service, contact an Apple Retail Store or Apple Authorised Service Provider. If you’d like to upgrade the memory in one of these models, an Apple Authorised Service Provider can help. Before you schedule an appointment, confirm that the specific Apple Authorised Service Provider offers memory upgrade services.
Memory in iMac (21.5-inch, Late 2015) and iMac (Retina 4K, 21.5-inch, Late 2015) is not upgradeable.iMac (Retina 5K, 27-inch, 2020)
Get memory specifications for iMac (Retina 5K, 27-inch, 2020), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory128 GB (4 x 32 GB DIMMs)
For optimal memory performance, DIMMs should be the same capacity, speed and supplier. Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC4-21333
*Unbuffered
*Nonparity
*260-pin
*2666MHz DDR4 SDRAM
If you have mixed capacity DIMMs, see the install memory section for installation recommendations.iMac (Retina 5K, 27-inch, 2019)
Get memory specifications for iMac (Retina 5K, 27-inch, 2019), then learn how to install memory in this model.Dram Memory Slot (x2) Function ChartMemory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory64 GB (4 x 16 GB DIMMs)
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC4-21333
*Unbuffered
*Nonparity
*260-pin
*2666MHz DDR4 SDRAMiMac (Retina 5K, 27-inch, 2017)
Get memory specifications for iMac (Retina 5K, 27-inch, 2017), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GB (2 x 4 GB DIMMs)Maximum memory64 GB (4 x 16 GB DIMMs)
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
The Best 10 Casinos in Mobile, AL 1. Beau Rivage Resort & Casino. The woman then called security and had us escorted out. Very frustrating to say the. Wind Creek Casino and Hotel, Atmore. Food choices are very limited and there are no longer free drinks. Mobile, AL 36606 Mobile Greyhound Park 7101 Old Pascagoula Rd, Theodore, AL 36582 Club Casino 7790 Tanner Rd, Mobile, AL 36608 IP Casino Resort Spa 850 Bayview Avenue, Biloxi, MS 39530 Beau Rivage Resort & Casino 875 Beach Blvd, Biloxi, MS 39530. Gambling casinos near mobile alabama. CASINOS in & near MOBILE, ALABAMA - 2020 up-to-date list. Atmore Wind Creek Atmore Casino & Hotel. The Wind Creek, located in the town of Atmore and set in a modern building, has opened in December 2009. Pensacola Greyhound Track & Poker Room. Biloxi Palace Casino Resort. Biloxi Golden Nugget. Alabama currently has five casinos but only one is near Mobile, however there are nine large casinos only an hours drive away in Biloxi Mississippi. This guide has reviews on the top casinos near Mobile AL. Also shown are the casino floor size in square feet and the miles from Mobile with drive time. The casino pages have pictures, gaming details for slots, blackjack, poker, craps, roulette and other table games plus hotel descriptions, restaurants and maps.
*PC4-2400 (19200)
*Unbuffered
*Nonparity
*260-pin
*2400MHz DDR4 SDRAMiMac (Retina 5K, 27-inch, Late 2015)
Get memory specifications for iMac (Retina 5K, 27-inch, Late 2015), then learn how to install memory in this model.Memory specifications
This iMac model features Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GBMaximum memory32GB
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
39 Events make up the Dublin Poker Festival 2020 schedule, there is something for every players bankroll. Beautiful structures and deepstacks all make this a must play festival!! Hotel rooms from only €99 per night at the Bonnington Hotel mean you can stay at the venue and stroll to the tables without the need to step outside the front door. We pride ourselves in having a top class. Dublin poker festival 2019 results 2019.
*PC3-14900
*Unbuffered
*Nonparity
*204-pin
*1867MHz DDR3 SDRAMFor these 27-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (Retina 5K, 27-inch, Mid 2015)
*iMac (Retina 5K, 27-inch, Late 2014)
*iMac (27-inch, Late 2013)
*iMac (27-inch, Late 2012)Memory specifications
These iMac models feature Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:Number of memory slots4Base memory8 GBMaximum memory32GB
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
*PC3-12800
*Unbuffered
*Nonparity
*204-pin
*1600MHz DDR3 SDRAMInstalling memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Open the memory compartment door by pressing the small grey button located just above the AC power port:
*The memory compartment door will open as the button is pushed in. Remove the compartment door and set it aside:
*A diagram on the underside of the compartment door shows the memory cage levers and the orientation of the DIMM. Locate the two levers on the right and left sides of the memory cage. Push the two levers outwards to release the memory cage:
*After the memory cage has been released, pull the memory cage levers towards you, allowing access to each DIMM slot.
*Remove a DIMM by pulling the module straight up and out. Note the location of the notch on the bottom of the DIMM. When reinstalling DIMMs, the notch must be orientated correctly or the DIMM won’t fully insert:
*Replace or install a DIMM by setting it down into the slot and pressing firmly until you feel the DIMM click into the slot. When you insert a DIMM, make sure you align the notch on the DIMM to the DIMM slot. Find your model below for specific installation instructions and notch locations:
*iMac (Retina 5K, 27-inch, 2020) DIMMs have a notch on the bottom, slightly to the left of the centre. If your DIMMs are mixed in capacity, minimise the capacity difference between Channel A (slots 1 and 2) and Channel B (slots 3 and 4) when possible.
*iMac (Retina 5K, 27-inch, 2019) DIMMs have a notch on the bottom, slightly to the left of the centre:
*iMac (27-inch, Late 2012) and iMac (Retina 5K, 27-inch, 2017) DIMMs have a notch on the bottom left:
*iMac (27-inch, Late 2013) and iMac (Retina 5K, 27-inch, Late 2014, Mid 2015, and Late 2015) DIMMs have a notch on the bottom right:
*After you’ve installed all of your DIMMs, push both memory cage levers back into the housing until they’ve locked into place:
*Replace the memory compartment door. You don’t need to press the compartment door release button when replacing the compartment door.
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.
Your iMac performs a memory initialisation procedure when you first turn it on after upgrading memory or rearranging DIMMs. This process can take 30 seconds or more, and the display of your iMac remains dark until it’s finished. Make sure you let the memory initialisation complete.For these 27-inch and 21.5-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (27-inch, Mid 2011)
*iMac (21.5-inch, Mid 2011)
*iMac (27-inch, Mid 2010)
*iMac (21.5-inch, Mid 2010)
*iMac (27-inch, Late 2009)
*iMac (21.5-inch, Late 2009)Memory specificationsDram Memory Slot (x2) FunctioningNumber of memory slots4Base memory4 GB (but is configured to order)Maximum memory16GB
For iMac (Late 2009), you can use 2 GB or 4 GB RAM SO-DIMMs of 1066MHz DDR3 SDRAM in each slot. For iMac (Mid 2010) and iMac (Mid 2011), use 2 GB or 4 GB RAM SO-DIMMs of 1333MHz DDR3 SDRAM in each slot.
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:iMac (Mid 2011)iMac (Mid 2010)iMac (Late 2009)PC3-10600PC3-10600PC3-8500UnbufferedUnbufferedUnbufferedNonparityNonparityNonparity204-pin204-pin204-pin1333MHz DDR3 SDRAM1333MHz DDR3 SDRAM1066MHz DDR3 SDRAM
i5 and i7 Quad Core iMac computers come with both top memory slots populated. These computers will not start up if only a single DIMM is installed in any bottom slot; these computers should operate normally with a single DIMM installed in any top slot.
Core Duo iMac computers should operate normally with a single DIMM installed in any slot, top or bottom. (’Top’ and ’bottom’ slots refer to the orientation of the slots in the pictures below. ’Top’ refers to the slots closest to the display; ’bottom’ refers to the slots closest to the stand.)Installing memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Philips screwdriver, remove the RAM access door in the bottom of your computer:
*Remove the access door and set it aside.
*Untuck the tab in the memory compartment. If you’re replacing a memory module, gently pull the tab to eject any installed memory module:
*Insert your new or replacement SO-DIMM into the empty slot, noting the orientation of the keyway of the SO-DIMM as shown below.
*After you’ve inserted it, press the DIMM up into the slot. There should be a slight click when you seat the memory correctly:
*Tuck the tabs above the memory DIMMs, and reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.For these 24-inch and 20-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (24-inch, Early 2009)
*iMac (20-inch, Early 2009)
*iMac (24-inch, Early 2008)
*iMac (20-inch, Early 2008)
*iMac (24-inch Mid 2007)
*iMac (20-inch, Mid 2007)Memory specifications
These iMac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.
The maximum amount of random-access memory (RAM) you can install in each computer is:ComputerMemory TypeMaximum MemoryiMac (Mid 2007)DDR24 GB (2 x 2 GB)iMac (Early 2008)DDR24 GB (2 x 2 GB)iMac (Early 2009)DDR38 GB (2 x 4 GB)
You can use a 1 GB or 2 GB RAM module in each slot for iMac (Mid 2007) and iMac (Early 2008). Use 1 GB, 2 GB or 4 GB modules in each slot for the iMac (Early 2009).
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:iMac (Mid 2007)iMac (Early 2008)iMac (Early 2009)PC2-5300PC2-6400PC3-8500UnbufferedUnbufferedUnbufferedNonparityNonparityNonparity200-pin200-pin204-pin667MHz DDR2 SDRAM800MHz DDR2 SDRAM1066MHz DDR3 SDRAM
DIMMs with any of the following features aren’t supported:Dram Memory Slot (x2) Function Tool
*Registers or buffers
*PLLs
*Error-correcting code (ECC)
*Parity
*Extended data out (EDO) RAMInstalling memory
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After your iMac has cooled down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Philips screwdriver, remove the RAM access door in the bottom of the computer:
*Remove the access door and set it aside.
*Untuck the tab in the memory compartment. If you’re replacing a memory module, untuck the tab and pull it to eject any installed memory module:
*Insert your new or replacement RAM SO-DIMM into the empty slot, noting the orientation of the keyway of the SO-DIMM as shown above.
*After you’ve inserted it, press the DIMM up into the slot. There should be a slight click when you seat the memory correctly.
*Tuck the tabs above the memory DIMMs, and reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.For these 20-inch and 17-inch models
Get memory specifications for the following iMac models, then learn how to install memory in them:
*iMac (20-inch Late 2006)
*iMac (17-inch, Late 2006 CD)
*iMac (17-inch, Late 2006)
*iMac (17-inch, Mid 2006)
*iMac (20-inch, Early 2006)
*iMac (17-inch, Early 2006)Memory specificationsNumber of memory slots2Base memory1 GBTwo 512 MB DIMMs; one in each of the memory slotsiMac (Late 2006)512 MBOne DDR2 SDRAM installed into the top slotiMac (17-inch Late 2006 CD)512 MBTwo 256 MB DIMMs; one in each of the memory slotsiMac (Mid 2006)512 MBOne DDR2 SDRAM installed into the top slotiMac (Early 2006)Maximum memory4 GB2 GB SO-DIMM in each of the two slots*iMac (Late 2006)2 GB1 GB SO-DIMM in each of the two slotsiMac (17-inch Late 2006 CD)
iMac (Early 2006)Memory card specificationsCompatible:
- Small Outline Dual Inline Memory Module (DDR SO-DIMM) format
- PC2-5300
- Nonparity
- 200-pin
- 667 MHz
- DDR3 SDRAMNot compatible:
- Registers or buffers
- PLLs
- ECC
- Parity
- EDO RAM
For best performance, fill both memory slots, installing an equal memory module in each slot.
*iMac (Late 2006) uses a maximum of 3GB of RAM.Installing memory in the bottom slot
The internal components of your iMac can be warm. If you’ve been using your iMac, wait ten minutes after shutting it down to let the internal components cool.
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Phillips screwdriver, remove the RAM access door on the bottom of the iMac and set it aside:
*Move the DIMM ejector clips to their fully open position:
*Insert your RAM SO-DIMM into the bottom slot, keeping in mind the orientation of the keyed SO-DIMM:
*After you’ve inserted it, press the DIMM up into the slot with your thumbs. Don’t use the DIMM ejector clips to push in the DIMM, as this may damage the SDRAM DIMM.There should be a slight click when you seat the memory fully.
*Close the ejector clips:
*Reinstall the memory access door:
*Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer.Replacing memory in the top slot
After you’ve shut down your iMac and given it some time to cool down, follow these steps:
*Disconnect the power cord and all other cables from your computer.
*Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display.
*Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth.
*Using a Phillips screwdriver, remove the RAM access door on the bottom of the iMac and set it aside:
*Pull the two levers on each side of the memory compartment to eject the memory module that’s already installed:
*Remove the memory module from your iMac as shown below:
*Insert your RAM SO-DIMM into the top slot, noting the orientation of the keyed SO-DIMM:
*After you’ve inserted it, press the DIMM up into the slot with your thumbs. Don’t use the DIMM ejector clips to push in the DIMM, as this may damage the SDRAM DIMM.There should be a slight click when you seat the memory fully.
*Close the ejector clips:
*Reinstall the memory access do
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