Need some advice about overclocking my i7 920...
Posted: Sat Mar 07, 2009 4:55 pm
Hi guys,
I'm hoping to tap into your expertise here.
I've just bought and built a new system, (Gigabyte EX58-UD5, Intel i7 920, Thermalright Ultra-120 eXtreme, GTX 260, 3x1GB Kingston HyperX 1800MHz DDR3 RAM).
It's running pretty well at a stable 3.2Ghz, but I want more.
Here is where I currently am as regard voltages etc.
CPU clock Ratio = 20x
QPI Link = Auto
QPI Spd = 5.76Ghz
BCLK = 165
Memory multiplier = 10 (1066 - 1600)
Uncore Freq = 20x (3200mhz)
CPU Core = 1.3v
QPI/VTT 1.34v
IOH = Auto
Dram = 1.5v
I'm kinda stuck here though. If I raise the BCLK to 170 I can boot into Windows but it crashes when running Prime 95. At these setting I'm running cool still, 32 Deg C @ idle, 55 Deg C under load, is this ok?
I want to get to around the 4Ghz mark...I assume this is possible with this gear?
So I'm looking for suggestions as to what to try next, and where the limits are. I would experiment myself more blindly, but I'm worried I might break something!
Thanks in advance. :)
Ric B.
I'm hoping to tap into your expertise here.
I've just bought and built a new system, (Gigabyte EX58-UD5, Intel i7 920, Thermalright Ultra-120 eXtreme, GTX 260, 3x1GB Kingston HyperX 1800MHz DDR3 RAM).
It's running pretty well at a stable 3.2Ghz, but I want more.
Here is where I currently am as regard voltages etc.
CPU clock Ratio = 20x
QPI Link = Auto
QPI Spd = 5.76Ghz
BCLK = 165
Memory multiplier = 10 (1066 - 1600)
Uncore Freq = 20x (3200mhz)
CPU Core = 1.3v
QPI/VTT 1.34v
IOH = Auto
Dram = 1.5v
I'm kinda stuck here though. If I raise the BCLK to 170 I can boot into Windows but it crashes when running Prime 95. At these setting I'm running cool still, 32 Deg C @ idle, 55 Deg C under load, is this ok?
I want to get to around the 4Ghz mark...I assume this is possible with this gear?
So I'm looking for suggestions as to what to try next, and where the limits are. I would experiment myself more blindly, but I'm worried I might break something!
Thanks in advance. :)
Ric B.