dual xeon quad core slower than single quad core

[varak]

i Just got my new dual xeon quad core 2.5, 4gb ecc ram, win xp64 sp2 and comparing to my old single quad core 2.4 4 gb ddr ram, win xp pro
look like the old one is much more faster than the new one. i tested with scene created in max 2008 old pc and max 2009 with the new pc and vray 1.5sp2
I notice have the same problem as this early post.
http://www.chaosgroup.com/forums/vbu...ight=quad+core

Any one solve or overcome this problem?

than you.

[DanielBrew]

Hi varak,

Could it be the same problem as this thread?

http://www.chaosgroup.com/forums/vbu...rboard+drivers

The problem was solved by disabling the snoop feature in the bios - whatever that is .

Dan

[varak]

Intel S5000XVN server board

Hi thank you very much,
I'm not sure does Intel S5000XVN server board can disable this. any idea how?


vara

[DanielBrew]

Sorry, no idea. It just sounded like it could be the same problem. I remember the thread because I have the same processors as stevesideas.

The only think I could suggest is have a look in the bios and see if you can see this 'snoop' feature and disable it. I wouldn't go changing anything else though. Unless you really know what you're doing as you could do more harm than good.

Other than that try PMing stevesideas, he might be willing to help.

Dan

[varak]

thanks

Thank's for your kind attention and already send PM.

[stevesideas]

Did you receive my reply ? The snoop feature was in my motherboard bios. You will have to look around for it, but it should be there.

[varak]

problem solve

Hi thanks for your help and i got your PM.

Well it's hidden in

1) adv/mem config/mem ras&perf configuration/snoop filter

2) adv/processor configuration/hardware prefetcher (speculative pre-fetch)

thanks

vara