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April 5th, 2012 11:00

Memory allocation in Precision WorkStation 390 & Optiplex 320

​In my possession I have the proper memory (both machines take the same) DDR2 PC 5300​

​2 Questions:​

​1) The Optiplex 320 will boot with a single 1GB stick of PC5300, but not with a single 2GB stick of PC5300....True or False? ​

​2) The Precision WorkStation 390 can have 3 1GB sticks of PC5300....True or False?​

​I don't work with Dell's often, but they seem more particular with memory allocation than other companies. Even when I have the proper memory it seems like the allocation is always an issue. Any insight is greatly appreciated!!​

10 Elder

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43.7K Posts

April 5th, 2012 12:00

According to Dell's specs...

Optiplex 320 supports these memory modules: 533- or 667-MHz DDR2 non-ECC SDRAM of 256-MB, 512-MB, or 1-GB  capacity in two slots.  So 2-GB isn't supported. And using only 1 stick means you lose all the advantages of DDR2 RAM, which requires a matched pair.

Precision 390

<ADMIN NOTE: Broken link has been removed from this post by Dell>

supports these memory modules: 533-MHz and 667-MHz ECC and non-ECC DDR2 SDRAM of 512 MB, 1 GB, or 2 GB capacity in four slots. 3x1-GB doesn't have the advantages of DDR2. But if you use 2x1-GB plus 2x512-MB you still have 3-GB total and now with full DDR2 support. 

 Edited

14.4K Posts

April 5th, 2012 12:00

Crucial reports that a Optiplex 320 will support:

Memory Type: DDR2 PC2-5300, DDR2 (non-ECC)

Maximum Memory: 4GB

Slots: 2

Each memory slot can hold DDR2 PC2-5300 with a maximum of 2GB per slot.*

For a Precision 390 :

Memory Type: DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (ECC)

Maximum Memory: 8GB

Slots: 4

Each memory slot can hold DDR2 PC2-6400, DDR2 PC2-5300 with a maximum of 2GB per slot.*

*Not to exceed manufacturer supported memory.

ALWAYS ENSURE YOU HAVE THE LATEST BIOS INSTALLED

Crucial is normally a very definitive source for Dell ram and ram options.

9 Legend

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47K Posts

April 6th, 2012 13:00

Not ALL Ram works with ALL computers.  HIGH Density Ram DOES NOT WORK with Dell or INTEL based motherboards.  Crucial WILL NOT RMA or refund or warranty Ram unless it is SPECIFICALLY Stated on their Ram Advisor or Site to be compatible.  Not all CRUCIAL DDR2 Ram Modules are compatible.

Computer Memory

Recommended Upgrade  CT917856

part image
4GB kit (2GBx2)  
DDR2 PC2-5300 • CL=5 • Unbuffered • NON-ECC • DDR2-667 • 1.8V • 256Meg x 64 •   •  Part #: CT917856
 
 How much memory your Windows OS will recognize depends on which version of Windows you are running. 32-bit versions of Windows will see (and utilize) only 3GB or 3.5GB. To utilize more memory, install a 64-bit version of your OS. More information about OS memory maximums can be found here.
The ATI GPU on the motherboard STEALS From System Ram.

Precision WorkStation 390 uses ECC Ram and MUST BE INSTALLED IN PAIRS when using more than 1 stick of ram.

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