Amd Nvidia/Ati -3dmark06 scorebord revisted

[kazgirl]

Go into the BIOS and under the Adv.tab and then down to Chipset . Make sure your running the cards in the blue slots. Under port 2 which is your top GPU under Gen2 High Speed Mode, changed that to Autonomous Switch then down to Slot Power limit changed that to 200-225(goTVoltage had it to 255) on Air. Link Width to 16x... Do the same thing to Port 11 which is your other GPU. NExt under Advanced, down to Hyper Transport.Isochronous Flow-Control- Enable that....Try that and do another test

Hi HG..

Well I tried the HT Flow setting and the Slot Power changes.... it did POST this time, but after 3 runs of 3DM06 all 3 showed a drop in performance with an average 1018 lower 3dmark score.... thanks for the suggestion though..!!

@ Kazgirl -I really do recomend benchmarking under xp32. Using Vista (esp X64) seemd to be losing a fair amount in the CPU score although i have noticed mnor changes (improvement) in SM3 on Vista X64.

Hi Gener_AL

Thanks for the tip, I could use 32-bit but I use (2 x 2GB) 4GB of RAM, so use 64-bit OS for this reason.... I know that it will yield lower OC in general. But I'll keep it in mind....

What Gener_AL said
64 bit OSes need more power to run
the most I've been able to get my 9950 to run Vista Ulimate 64bit was @3.250 with 1.55 vcore

WinXP and Vista Home Premium 32bit I can do 3.440@1.55v GHz no problem

Also increasing your PCI-E speed will give you a boost to 3DMark score
I run mine at 119 MHz
Either increase the PCIE Frequency or enable Auto Express and then back it down with AOD
For me, if I did both ,things became unstable.

Hi AMDDeathstar..

Thanks for the suggestions on that as well, I have already got Auto Express enabled, and my PCI-E runs at 124Mhz as a result, I've tried it enabled and disabled with manually adjusted PCI-E speeds, but the best result seems to be with Auto Express enabled... I also have CPU Tweak enabled.

The 9950BE does boot to Vista at 3.2Ghz and even at 3.3Ghz but fails to even complete a single run of 3Dmark Vantage / 3DMark06... and proves to be unstable.... I was hoping for better than this, but maybe the new SB750 mobo will help when it arrives, which I'm hoping will be today or tomorrow...!!

The highest I can get stable enough to complete 3DMark on the SB600 is 3.1Ghz, I've tried increasing the CPU Voltage and CPU/NB Voltage up as high as 1.5v but still nothing....

Thanks for the tips guys its appreciated...!!