CPU/Graphics Problems

Hello all. I'm having problems with my newly built pc. Here's my current issue. When running graphics-intensive applications (games, etc),
the system either freezes or shuts down the application. 3DMark06 CPU tests show 0 or 1 fps and in triangle tests the first couple are bad
as well, 1 or 2 fps. Everything else (all the graphics tests) looked fine as far as I could tell. I'm trying to run the pc on manufacturer settings and not overclock (I know, I'm posting in the OC forum but hope to get better help here). Can I get some help on settings for my CPU problem? I'm also looking for tips on other BIOS settings as well. Here's my setup and readings with CPU-Z and Asus Probe II, with my BIOS settings as well. Thanks in advance for the help.

My setup:
Vista Ultimate x64 SP1
Asus Striker II Extreme http://www.newegg.com/Product/Prod [...] 6813131274
Intel Core2 Duo E8600 http://www.newegg.com/Product/Prod [...] 6819115054
Zalman CPU Cooler http://www.newegg.com/Product/Prod [...] 6835118019
BFG GTX280 OC ed. http://www.newegg.com/Product/Prod [...] 6814143144
2x Patriot Viper 2GB DDR3: http://www.newegg.com/Product/Prod [...] 6820220344
2x 1T Seagate Barracuda http://www.newegg.com/Product/Prod [...] 6822148274
300G WD VelociRaptor http://www.newegg.com/Product/Prod [...] 6822136260
LG Super Multi BluRay drive http://www.newegg.com/Product/Prod [...] 6827136137
Coolmax CUQ-1200B 1200W psu http://www.newegg.com/Product/Prod [...] 6817159067
Antec Twelve Hundred case http://www.newegg.com/Product/Prod [...] 6811129043

=================================================================================================================================================

CPU-Z:
vcore: 1.200 V
core speed: 2000 MHz
multiplier: 6.0
bus speed: 333.3 MHz
rated fsb: 1333.3 MHz

Memory:
DRAM frequency: 533.3 MHz
FSB: DRAM: 5:8
CAS# Latency (CL): 9.0 clocks
RAS# to CAS# Delay (tRDC): 9 clocks
RAS# precharge (tRP): 9 clocks
Cycle time (tRAS): 24 clocks
Bank cycle time (tRC): 27 clocks
Command rate (CR): 1T

SPD (slots 1 and 2):
Max bandwidth: PC3-8500F (533 MHz)
Timings Table
Frequency 457 MHz 533 MHz
CAS# Latency 6.0 7.0
RAS# to CAS# 6 7
RAS# precharge 6 7
tRAS 18 20
tRC 24 27
Voltage 1.5 V 1.5 V

=================================================================================================================================================

Asus PC Probe II:
Vcore: 1.26V
CPU PLL: 1.54V
CPU VTT: 1.14V
Memory: 1.67V
NB: 1.33V
SB: 1.50V
DDR3 Term: 0.82V
3.3V: 3.38V
5V: 5.11V
12V: 12.10V

=================================================================================================================================================

BIOS v1104:
Extreme Tweaker:
Memory Level Up: Auto
AI Overclock Tuner: Auto
[grey]Overclock options: disabled
CPU Multiplier: 10.0
[grey] Actual FSB (QDR): 1333.3 MHz (tried setting this manually with 1333 MHz actual FSB and won't boot into Windows)
[grey] Actual MEM (DDR): 1066.7 MHz
LDT Frequency: 5x
PCIE Bus, Slot 1 & 2: 100 MHz
PCIE Bus, Slot 3, MHz: 100 MHz
SPP<->MCP Ref Clock: Auto
SLI-Ready Memory: Disabled
Memory Timing Settings:
P1: Auto
P2: Auto
tCL (CAS Latency http://en.wikipedia.org/wiki/CAS_latency ): 9
tRCD: 9
tRP: 9
tRAS: 24
Command per Clock (CMD): Auto (1T)

Over Voltage:
CPU Voltage: 1.22500 V (ASUS PC Probe says voltage is 1.26, CPU-Z says 1.200 idle, auto set voltage too high)
Loadline Calibration: Disabled
Everything else: auto (Wont load windows with recomended RAM settings. And noticed on "Auto", RAM voltage skyrockets (3.0v or so) when running both CPUZ http://en.wikipedia.org/wiki/CPU-Z and Asus Probe II at once (According to Probe II).

CPU Configuration:
CPU Internal Thermal Control: Auto
Limit CPUID MaxVal: Disabled
Enhanced C1 (C1E): Enabled
CPU C State Capability: Disabled
Execute Disable Bit: Enabled
Virtualization Technology: Disabled
Enhanced Intel Speedstep Tech: Enabled
CPU Core 2: Enabled

Spread Spectrum http://en.wikipedia.org/wiki/Spread_spectrum Control:
all disabled

Advanced:
PCIPnP:
Plug & Play O/S: No
Primary display adapter http://en.wikipedia.org/wiki/Video_card : PCI-E

Power:
ACPI Suspend Type: S1&S3

Hardware Monitor:
Voltage Monitor:
VCore Voltage: 1.24V
CPU PLL: 1.53V
CPU VTT: 1.13V
Memory: 1.66V
NB Core: 1.32V
SB Core: 1.50V
DDR3 Termination: 0.81V
3.3V: 3.37V
5V: 5.08V
12V: 12.09V

while i doubt it is the ram an easy test is to take one out at a time. even if the ratio isn't right it wouldn't make a high end system fall under 3dmark 06

i would say GPU drivers they could be corrupted in the wrong place what ever i don't know. if the system runs just doesn't game that the stress or the load on the hard ware would be the problem. i would say one of 2 things if it boots then it probably isn't bios. i could be drivers tho. if your drivers have errors it can be hard to find untill you hit the error right on the head if you know what i mean...

also i sounds like it could (possibly coming from a driver problem) is a heating issue. if your GPU is overheating it could be slowing down to save itself....

i would go to places like newegg and read the 1 2 and 3 star reviews of your hardware find the common problems, think logically if that is a possibility, and test to see if it is.

i hope this helps and for all it is worth i like your rig hope you can get fixed because gaming on that thing will be nice... good luck