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Discussion Starter · #1 ·
So I just upgraded from a cheap 50$ Asus mobo to Asus Crosshair IV Formula. I'm using the same CPU, RAM, hard drives and PSU. I got two new 6950's but they're still missing the CFX bridge.

I added the same OC settings in BIOS as with the old mobo:

FSB: 240
HT frq: 2400 MHz
NB frq: 2400 MHz
RAM: 1600 MHz 9-9-9-24
CPU voltage: 1.488
CPU freq: 3600MHz

Everything else was left on AUTO.

I then ran 3DMark11 and the gfx tests ran better even with just one card in use. But when the physics test started the FPS stayed at 9 when it used to be above 11 with my old setup. The overall score was on bar with my previous setup because GFX scores were better but CPU and combined tests were much worse.

I'm a newbie overclocker so could someone point out if I'm missing something obvious with my OC or is this normal behaviour because of ________ ?
 

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ive had this happen too, but normally the other way around. i got a 3DMark Vantage score increase of about 3000 points just by changing from a DFI UT X58 board to a EVGA X58 Classified. its going to be a guess but id say the reason for the drop would be the board you had before had better processor bandwidth than the new one, strange though since your new board is ten times better. only other idea would be that the HD6950's are putting more loading on your processor and leaving less processor usage left over for the physics tests. that would actually make more sense since your processor is no way near fast enough to keep up with two HD6950's. id really suggest upgrading to a better processor soon, if your tight for money AMD Phenom II 955's are pretty cheap and perform a lot better than Athlons
 

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Discussion Starter · #3 ·
Quote:
Originally Posted by Kal777;15192443
only other idea would be that the HD6950's are putting more loading on your processor and leaving less processor usage left over for the physics tests. that would actually make more sense since your processor is no way near fast enough to keep up with two HD6950's.
Thanks, that seems logical enough
wink.gif
Though the physics test doesn't seem to be very gfx intensive and the 2nd card is still disabled. At least that ridiculous windows user experience index didn't drop
tongue.gif
 
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