Trouble with 8800gt

[gbluntzer]

I recently bought new hardware

Western Digital Caviar SE16 WD7500AAKS 750GB 7200 RPM SATA 3.0Gb/s Hard Drive
GIGABYTE GA-X38-DS4 LGA 775 Intel X38 ATX Intel Motherboard
Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor Model BX80562Q6600
Microsoft Windows XP Professional With SP2C - OEM
XFX PVT88PYDQ4 GeForce 8800GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card
SAMSUNG 20X DVD±R DVD Burner with LightScribe Black SATA Model SH-S203N - OEM
PC Power & Cooling Silencer 610 EPS12V EPS12V 610W Continuous @ 40°C Power Supply - Retail
ARCTIC COOLING Freezer 7 Pro 92mm CPU Cooler
Antec Nine Hundred Black Steel ATX Mid Tower Computer Case
OCZ Reaper HPC Edition 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model OCZ2RPR800C44GK

Using 169.21 forceware driver

I can play Company of Heros fine as well as normal desktop applications.

When I try and play unreal tournament III demo it will start and stop game play and Crysis demo it will lock up my box.

Also the fan on the graphics card stays at 100%

My Questions are:
Can anyone see incompatiblities with my setup?
Do you think my power supply has enough power? (the case has 3 fans)
What would cause some games to work and others to crash?

Thanks for any help,
Greg

[funkyman23]

remove nhancer and riva tuner if u have some remove ntune i dont know exacty what is with your rig can u post your settings voltages in bios and is that 8800gt factory overclocked or reference board some xfx gt alfa dogs have problems with to high clock memory or gpu dont know exactly

[funkyman23]

try run some mem test on each stick of ram and make shure u look what settings ocz recomends for that ram ,if that pass try then strestesting Your system with ortos ,in everest u got system stabiliy test try that ,and if your system and memory passes those tests then go testing your grafic card with 3dmark06 this is just one way of meny to isolate problem with your rig hope u fix it

[gbluntzer]

I Returned the video card and go a lesser one. I was thinking it had something to do with the power to the graphics card. With the new card in the computer still has problems. I ran mem test for 30 min and it didnt fail.

Im thinking now its the ram voltage after looking at ocz posts. In the bios i add .3 to the voltage but it doesnt change the value in cpu-z(see below)
if I added .3 votage to the ddr voltage shouldnt show up as 2.1?
Edit: also what are the other two column representing. The recommened mem setting is 4-4-4-15 2T 2.1V

I can play uneal tournament III for about 5 min before it freezes up on me.

any help would be great...
-Greg

VGA XFX PVT88PYDQ4 8800GT 512M RT - RETURNED
XFX 8500 GT Fatality - Replacement
DVD BURN SAMSUNG|SH-S203N SATA LS % - OEM (Qty=1,
HD 750G|WD 7K 16M SATA2 WD7500AAKS - OEM (Qty=1,
THERMAL COMPOUND AC|MX-2 R - Retail (Qty=1,
CASE ANTEC|NINE HUNDRED BK RT - Retail (Qty=1,
MB GIGABYTE GA-X38-DS4 775 RT - Retail (Qty=1,
PSU PCPWRCL|SILENCER 610 EPS12V RT - Retail (Qty=1,
CPU INTEL|C2Q Q6600 2.40G 775 8M R - Retail (Qty=1,
MEM 2Gx2|OCZ DII800 OCZ2RPR800C44GK - Retail (Qty=1,
S/W MS WIN XP PRO W/SP2C % - OEM (Qty=1,
CPUCOOLER|ARCTIC P4|ACFZ7-PRO R - Retail (Qty=1,

http://i180.photobucket.com/albums/x168/gbluntzer/cpustats.jpg