First attempt at bios OC

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funcantonguy73

Weaksauce
Joined
Feb 26, 2006
Messages
108
Newbie to the open bios with my new machine I built a week ago. It's running other worldly fast in every game I have tried. I am very happy with it. However I just couldn't resist the urge to try my hand at some rudimentary OC of the Cpu, Hyper Transport, Memory etc. My first attempt bumped it up to 220mhz =2420mhz cpu core and it booted great and yielded a 36second pi 1 million vs 40 seconds stock 2.2. Then ran aquamark it resulted in 83390 total score vs 74753 stock and 1,000 more points to the cpu score 10,577 vs stock 9481. But when I bumped it up to 222 mhz x11 = 2442 mhz everything dropped back to original benchmark numbers and I am scratching my head as to why. Anyone have any ideas ?? I have not touched voltages or any power stuff in any way.

PS the Evga 8800 GTS Superclocked is at default settings 567/1700
 
what is the rest of your BIOS settings... I.E. HTT link, ram timings, FSB setting, etc... Do you have a divider running?
 
Right now I have FSB set to 220 mhz x 11 divider = 2420 mhz
Hypertransport is running 220 x 5 = 1100 mhz
Memory is running 440 mhz
CAS latency is 2.5
RAS to CAS delay is 3
RAS precharge is 3
cycle time is 5
command rate is 2t
 
Cpu freq = 220 mhz
Chipset voltage = 1.5v
HT Voltage =1.2v
Cpu mulitiplier = x11
Cpu voltage = 1.350v
DDR voltage = auto
 
Hypertransport needs to be set to 4x instead of 5x...

11x is not your divider, that is your multi. Your divider is based on your ram... I would recommend a 166mhz divider, or 5:6 divider... Might want to also bump your CPU voltage up to 1.4 or 1.45 dependant on your temps.
 
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