Vantage crashes after OC CPU

Ysidor930 · Jun 6, 2010

Hi guys need some help. I just built new system and trying to overclock it.
i7 930 D0, asus P6TD Deluxe, Ripjaws 4GB 1600MHz, Radeon 5870, Corsair HX850 PSU. Overclocked CPU to 4.004 GHz with these voltages:
CPU 1.33V
CPU PLL 1.90V
QPI DRAM 1.33V
DRAM 1.60V
CPU is watercooled and gets to 65-70 loaded. Tested on Prime 95 for few hours and getting no errors at all. But when I start 3Dmark Vantage it crashes after first GPU test. And it doesn't crash to desktop or gives any error, the screen just gets messed up with artifacts. I didn't overclock VGA yet, so it runs on standart frequencies, and it worked fine before OC'ing CPU.
Could you give me any advice to sort this problem without lowering CPU frequency? Maybe it's PCIex voltages needs to adjust (if that's possible)?
Any help welcome.

Ysidor930 · Jun 6, 2010

Some update

Here's some updated info:
It appears that Vantage doesn't crash after first test, just display shows a complete mess in the screen, but if I wait 10 min until all tests pass through, I'm being thrown into desktop and even getting 3Dmark score !!!
I tried older 3dmark tests, some games etc, no problems at all, just in Vantage.
Any ideas?

redduc900 · Jun 6, 2010

Give these settings a try for 4.0Ghz, making sure to manually change the DRAM voltage and four primary timings to match the default spec's at DDR3-1600...

Code:

Ai Overclock Tuner.....................[Manual]
CPU Ratio Setting......................[21.0]
Intel(r) SpeedStep(tm) Tech............[Disabled]
Xtreme Phase Full Power Mode...........[Enabled]
BCLK Frequency.........................[191]
PCIE Frequency.........................[101]
DRAM Frequency.........................[DDR3-1528MHz]
UCLK Frequency.........................[Auto]
QPI Link Data Rate.....................[Auto]

CPU Voltage Control....................[Manual]
CPU Voltage............................[1.325]
CPU PLL Voltage........................[1.80]
QPI/DRAM Core Voltage..................[1.35]
IOH Voltage............................[1.30]
IOH PCIE Voltage.......................[1.50]
ICH Voltage............................[1.40]
ICH PCIE Voltage.......................[1.50]
DRAM Bus Voltage.......................[1.60]
DRAM DATA REF Voltage on CHA...........[Auto]
DRAM CTRL REF Voltage on CHA...........[Auto]
DRAM DATA REF Voltage on CHB...........[Auto]
DRAM CTRL REF Voltage on CHB...........[Auto]
DRAM DATA REF Voltage on CHC...........[Auto]
DRAM CTRL REF Voltage on CHC...........[Auto]

Load-Line Calibration..................[Enabled]
CPU Differential Amplitude.............[900mV]
CPU Clock Skew.........................[Delay 300ps]
CPU Spread Spectrum....................[Disabled]
IOH Clock Skew.........................[Auto]
PCIE Spread Spectrum...................[Disabled]

C1E Support............................[Disabled]
Hardware Prefetcher....................[Enabled]
Adjacent Cache Line Prefetch...........[Enabled]
Intel(r) Virtualization Tech...........[Disabled]
CPU TM Function........................[Enabled]
Execute Disable Bit....................[Enabled]
Intel(r) HT Technology.................[Enabled]
Active Processor Cores.................[All]
A20M...................................[Disabled]
Intel(r) SpeedStep(tm) Tech............[Disabled]
Intel(r) C-STATE Tech..................[Disabled]

Ysidor930 · Jun 6, 2010

another update

Sorry for troubling you, but here's some interesting update:
Last post gave me some clues and I started thinking that problem appears at the last stage in the graphic card which is OUTPUT, so I changed output from HDMI to Displayport and problem gone.
Is it dodgy VGA or not, I don't know, but if problem won't come back, I'm happy

Vantage crashes after OC CPU

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