[EMAIL PROTECTED] wrote:
Hello, computer gurus -
do any of you know if the AMD Opteron downrates the PC3200 400 MHz DIMMS (DDR400) to 333 MHz (DDR333) performance when the system has more that 2 Gbytes of memory installed?

i was told that when an opteron socke has more that 2GBytes of memory, then the cpu will automatically downrate the memory rate to an equivalence of DDR333 memory.

Thank you for your time.
Jose.


_______________________________________________
Beowulf mailing list, [email protected]
To change your subscription (digest mode or unsubscribe) visit 
http://www.beowulf.org/mailman/listinfo/beowul

No, that is not true. The test results at http://www.gamepc.com/labs/view_content.asp?id=opteronmemory&page=8 show that the Opteron interaction with memory is better in most cases when the memory is above 2 GB/processor die. If your motherboard supports a dual-channel or quad-channel memory configuration, you can take more advantage of the Opteron's capabilities and high-bandwidth memory by installing more than 2GB of memory. Just make sure all of the modules support the higher bandwidth or the on-die memory controller will automatically run at the frequency of your slowest module.

Brice Hunt
_______________________________________________
Beowulf mailing list, [email protected]
To change your subscription (digest mode or unsubscribe) visit 
http://www.beowulf.org/mailman/listinfo/beowulf

Reply via email to