[SOLVED] Xeon RAM Compatibility

Bubble16

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Oct 19, 2019
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Is it necessary to have at least DDR2 667 RAM to run 771 pin xeons?
I have e5440 modded and
G31M-ES2L mobo with modded BIOS and it stuck on POST.
I'm using DDR2 533 RAM and should I replace it with 667 or higher?
 
Solution
The Xeon cannot care one way or another because it has no onboard memory controller. It does have a 1333 FSB and the lowest memory multiplier you can set on the motherboard is 1:1 so it's the motherboard chipset that is requiring DDR2-667 for any 1333 FSB CPU.

If you could borrow a stick of faster RAM you could boot the Xeon and set the FSB at 1066. Then your DDR2-533 would work fine but the Xeon would run at 2133MHz.
The Xeon cannot care one way or another because it has no onboard memory controller. It does have a 1333 FSB and the lowest memory multiplier you can set on the motherboard is 1:1 so it's the motherboard chipset that is requiring DDR2-667 for any 1333 FSB CPU.

If you could borrow a stick of faster RAM you could boot the Xeon and set the FSB at 1066. Then your DDR2-533 would work fine but the Xeon would run at 2133MHz.
 
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