100% Guaranteed Compatible
8GB
2GB or 4GB
0MB
PC3-10600
2
2
Intel Q67
Your Dell OptiPlex uses PC3-10600 type memory.
Your Dell OptiPlex can support up to 8GB of memory. For optimal performance install the maximum amount of memory in each socket.
Your system comes standard with 2GB or 4GB of RAM. If you have upgraded your system then you may have a different amount.
A bank is a group of memory sockets. A socket is where a memory module is inserted. A bank can have one or more sockets.
One or more of the sockets in your system is already filled with memory. When you upgrade your system, you can either add memory to one of the open sockets and/or remove memory from a filled socket and replace it with a higher capacity memory module.
Your Dell OptiPlex 990 (Ultra SFF) has 2 banks of 1 socket each for a total of 2 memory sockets.
*We recommend you upgrade your computer to the latest BIOS revision prior to upgrading your memory.
A 64-bit operating system is required to address 4GB and above.
Modules must be purchased and installed in pairs for dual channel performance.
ETC tests each RAM module to ensure compatiblity with your Dell system. The memory modules listed above are guaranteed to work in your Dell OptiPlex 990 (Ultra SFF).
Greg
Date: 7/27/2011
New Jersey
IT Professional
Products Reviewed: 1
This was an excellent product, shipped quickly, was a fair value for the chip type, and was easy enough to install.
The only problem, and caveat is not something wrong with the memory. Please note, 64 bit Windows users, that if you go above 16GB on Windows Home Premium, you will need to upgrade to Windows Professional to get "access" to the full value of the memory.
Other than that one hitch, no other problems and my (home) machine is screaming around with 24 GB of RAM inside it now.
Memory or RAM is a piece of hardware in your computer that holds software applications that you are working on. It serves as temporary working space between your computer’s hard drive and CPU.
Adding memory will improve your computer’s performance. Specifically, it will speed up opening new applications, running multiple applications at once, and switching between software applications (multi-tasking).
One task that additional memory speeds up is opening a new software application. Let’s take this as an example. When you open a new application on your computer, your computer’s CPU fetches the application from the hard drive and stores it in RAM memory. It stores it in RAM because RAM is very fast relative to the hard drive. When RAM gets full, and you open a new application then the CPU needs to kick out one of your open applications, put it back on the slow hard drive, fetch the new application from the hard drive, and place the new application in RAM. Basically, it swaps the applications.
This game of swapping wastes time. Ideally, your computer could have an infinite amount of RAM. Then your CPU would fetch an application once from the hard drive, save it into RAM, and never need to kick out another application. There is no such thing as infinite RAM, but you can max out the RAM on your computer by adding the maximum amount of memory to each socket.
To max out your RAM memory, add the maximum amount of memory to each memory socket. To find out how much RAM each socket can support, divide the system maximum RAM amount by the total number of sockets in your system.
For example, if your system maximum RAM is 2GB, and your system has 2 total sockets then the maximum amount each socket can support is 1GB. If one of the sockets is already filled then you can always remove the existing module and replace it with a higher capacity module.
No. The 1975 Magnusson-Moss Act prevents OEM manufacturers from disqualifying a warranty when 3rd party memory is used. For more details, please see the Magnuson-Moss Act.
Memory speed refers to the amount of time that memory (RAM) takes to put data into its memory or send it out. Your device’s memory will have an upper limit on the speed at which it can operate.
A memory kit is a number of memory modules sold as a unit or a kit. For example, a 1GB memory kit will contain two 512MB modules. This is written as (2x512MB).
Desktop Memory Installation (General)
Laptop Memory Installation (General)
Choose the appropriate installation guide or see our How To Install Computer Memory Guide.
184-Pin DIMM Memory Upgrade Installation Guide 168-Pin DIMM Memory Upgrade Installation Guide General SIMM Memory Upgrade Installation Guide 184-Pin DIMM Memory Upgrade Installation Guide 168-Pin DIMM Memory Upgrade Installation Guide General SIMM Memory Upgrade Installation GuideElectro-Static Discharge (ESD) is one of the major issues of damaging memory modules. Learn how you can avoid this by reading our Memory Handling Guide.
ETC Memory Upgrades for the Dell OptiPlex 990 (Ultra SFF) are engineered to exact OEM specifications. ETC guarantees 100% performance and compatibility with your Dell OptiPlex 990 (Ultra SFF).
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