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Need thoughts on these voltages

M

mike87

Limp Gawd
Joined
Nov 17, 2009
Messages
183
I currently have my Q9550 @ 3.4 GHz with a vcore of 1.2V which I'm happy with.

RAM: 2x2gb Crucial Ballistix 800MHz
VIDEO: EVGA GTX 285 SC

My FSB is at 400 MHz, using a P5B Deluxe with beta BIOS that's running experimental higher-than-normal FSB for the CPU.

FSB termination voltage: 1.4V
NB voltage: 1.45

Anything less for these 2 voltages, and I see a framerate drop in games... are these "safe"..? The next lower choices for these 2 would be 1.3V for the FSB term, and 1.25 for the NB voltage..

Any help would be appreciated! :D
 
If you are seeing "framerate" drops in games by lowering the FSB or NB voltage I would suggest its a placebo effect if the rig is stable, 1.4v (don't go over this) for FSB on a 45nm quad is a good bit to the high side, drop it until the OC becomes unstable in IBT/Prime....That's all that will really have any effect. 1.45v on the NB also seems a bit high.
 
Only way to know is to set it to that and test to see if the system is stable.
 
Bah, it was unstable in WinXP, but now that I have Win7 installed, I guess I'll test again.
 
The FSB voltage is more of a worry to me than the NB, 45nm chips are very picky about FSB voltage and can be fried by it.
 
For your reference, here are my stable 8.5x400 settings:
Code: 
DFI LP LT P35-TR2 (BIOS: LP35D919) | Intel X3360 @ 8.5x400=3.40 GHz
 266/667 MHz Strap   CPU Vcc=1.12500   NB Core=1.370   CPU VTT=1.310
TWIN2X4096-8500C5D 4 x 2Gb @ 5-5-5-15 @ 1,000 MHz (4:5) @ 2.100V

1.4 is kinda high in my opinion. You might wanna drop them down and test with linpack. Also consider using 0.63x on the CPU GTLs.
 
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