Posting because I noticed there we're a few forum members like myself looking for some type of overclocked bios settings for the I7 950 using the SLI LE board. Well this is what I have so far and would like to thank
JacobF for the overclocking guide
http://forums.evga.com/tm.aspx?m=20028 the main difference I found is that I have to use the multipler to get the system stable beyound 3.8ghz. I will say that the I7 950 is alot tougher to get past the 4.2ghz and expect to install a water cooled system to achieve anything higher than 3.8ghz.
Would like to thank the community members HarryD , jmcu1 , MrRiddler , kyozero ,moose517
For selling certain items I needed to complete my first water cooled system. Some of them still have parts for sale and all transactions went great. Index Blu=Changed settings in Bios Red=Hardware Green=Bios menu Page Gold= Bios Sub menus
First my specs:
Case: Cooler Master CM 690 II
Mobo:Evga X58 SLI LE Thanks to HarryD
Cpu: I7 950 D0 S-SPEC: SLBEN, Temp= 26c idle 52c loaded, Running 4.2ghz, 200 fsb, 21x multipler (can't seem to get stable using the full 23x), 1.475 core voltage not sure if I can go any higher or if I'm to high now.
COOLING: XSPC water cooling sytem w/ swiftech waterblock for 470 gtx Thanks to jmcu1
TIM: IC Diamond= CPU, OCZ freeze 2 for 470 GTX
Video: Evga 470 gtx w/ water block running 650,1300,3402 temp= 35c idle 52c loaded Thanks to MrRiddler
HDD: WD Velociraptor 300 gb Thanks to kyozero
RAM: CROSSAIR XMS 3 6GB @1600MHZ 9,9,9,24,2T, @ 1.66 volts Thanks to moose517
OS: WINDOWS 7 ULTIMATE 64 BIT
Bios: 76
Bios Settings: POWER MANAGMENT -HPET
[64BIT] PNP/PCI -INTI DISPLAY FIRST
[PICI EX] FREQ./VOLTAGE CONTROL CPU CLOCK RATIO
[21X] [CPU HOST FREQ [[MCH STRAP [AUTO]
CPU UNCORE FREQ. [
3205MHZ (16X)] CPU CLOCK SKEW [
0PS]
SPREAD SPECTRUM [DISABLED]
PCI FREQ [100]
OC RECCOVERY [
ENABLED]
TURBO PERFORMANCE [
ENABLED]
-MEMORY FEATURES: MEMORY SPD
[XMP PROFILE 1] MEMORY CONTROL SETTINGS [ENABLED]
MEMORY FREQ.
[2:8] CHANNEL INTERLEAVE [6 WAY]
RANK INTERLEAVE [4 WAY]
MEMORY GAP [AUTO]
TCL
[9] TRCD
[9] TRD
[9] TRAS [
24] TRFC
[74] COMMAND RATE [
2T] LEAVE ALL OTHERS IN AUTO UNLESS YOU UNDERSTAND WHAT YOUR DOING VOLTAGE CONTROL: -EVGA VDROP CONTROL [WITH VDROP]
-CPU VCORE
[1.475]
-CPU VTT VOLTAGE [
+300mv]
-CPU PLL Vcore [AUTO]
-QPI PLL Vcore [
1.4]
-DIMM VOLTAGE [
1.66]
-DIM DQ Vref [
+0mv]
-IOA Vcore [
1.4]
-IOH/ICH I/O VOLTAGE [
1.65]
-ICH Vcore [
1.25]
CPU FEATURES: INTEL SPEEDSTEP [
DISABLED]
TURBO [DISABLED]
CXE FUNCTION [
DISABLED]
EXCUTE BIT[
DISABLED]
VIRTUALZATION [
DISABLED]
INTEL HT [ENABLE]
ACTIVE PROCESSOR CORES [ALL]
QPI CONTROL SETTINGS [ENABLED]
QPI LINKFAST MODE [ENABLED]
QPI FREQ. SELECTION [
4.800 GT/S]
These setting are what works for me right now. I can not get stable using full multiplier and keeping the ram around 1600. I might try increasing the ram dim voltage a little more to try and overclock the ram to get the system stable @ 23x multiplier which would put me @ 4.5ghz roughly.
I have read that the ram voltage can be only .5 volts max higher than the Cpu Vcore voltage. If I understand this correctly than I should be able to easily set the Ram Dimm voltage to 1.7v to help keep the ram stable Since Im @ 1.475 on the Cpu Vcore. Let me know if im reaching the limit on Cpu Vcore or the Ram. Has anyone ran a system higher than 1.475 for a fixed amount of time? I am still playing with voltages and multipliers.
These settings are prime 95, Intel Burner , Vantage, and OCCT stable. If anyone has any suggestions please add some comments. Hopefully this might help someone else that might be fighting to get there I7 950 higher than 3.8ghz. I would like to thank the community for their time and help.
post edited by tlpjr1972 - 2010/11/03 21:49:40