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Q9550 and the magic 4

M

Mr.Amateur

New Member
Joined
Jan 19, 2009
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System Specs
System Name Pretty Colors
Processor Q9650 @ 4140 mhz
Motherboard Gigabyte ep45-ud3p rev. 1.1 f9 bios
Cooling Thermalright Ultra 120 eXtreme Black Edition
Memory 2x2gb OCZ Reapers pc2-1066
Video Card(s) Sapphire Vapor X 5870 Rev. 2
Storage Seagate 1500GB 7200 rpm
Display(s) LG HDTV monitor 23" 1920x1080
Case Coolermaster HAF 932
Audio Device(s) Steelseries Siberia USB soundcard
Power Supply OCZ ModXStream 700w
Software W7 Ultimate x64
Benchmark Scores I overclocked, that's achievement enough :D beat crysis.
http://www.techenclave.com/overclocking-n-modding/overclocking-q9550-on-asus-p5q-pro-126648.html

I copied the settings in the link with some minor changes: change 472-471 FSB and 1.31875 to 1.36250V

Running OCCT, I get an "error detected on core #" in minutes. When I upped vcore to 1.3750V, I crashed in seconds. Same phenomenon occurs when I increase NB voltage or change PLL voltage to 1.5V or increase FSB term. voltage to 1.3V.


Fellow overclockers, what should I do to achieve a stable 4ghz overclock? :confused:

*will post current system info following this post...hopefully

EDIT: screw minutes, I can't pass 10 seconds now. Most likely because steam used up cpu while OCCT was running
 
Last edited:
M

Mr.Amateur

New Member
Joined
Jan 19, 2009
Messages
188 (0.03/day)
System Specs
System Name Pretty Colors
Processor Q9650 @ 4140 mhz
Motherboard Gigabyte ep45-ud3p rev. 1.1 f9 bios
Cooling Thermalright Ultra 120 eXtreme Black Edition
Memory 2x2gb OCZ Reapers pc2-1066
Video Card(s) Sapphire Vapor X 5870 Rev. 2
Storage Seagate 1500GB 7200 rpm
Display(s) LG HDTV monitor 23" 1920x1080
Case Coolermaster HAF 932
Audio Device(s) Steelseries Siberia USB soundcard
Power Supply OCZ ModXStream 700w
Software W7 Ultimate x64
Benchmark Scores I overclocked, that's achievement enough :D beat crysis.
Any increase in voltage is a no go for stability, the only reason I can think of why I can load windows is because of the cpu margin. Performance mode blue screens, optimized restarts, compatible is what I am sticking with for 471x8.5. What next?
 
sneekypeet

sneekypeet

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500 X 8 1:1 or even 4/5 I think 333/800 strap. This way the ram is effectively underclocked and removed from the equation. This way you can tell if it is the Nb or CPU playing up on you.
 
Cold Storm

Cold Storm

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Benchmark Scores i5 750 4.62ghz pi runs // Evga FTW p55
to achieve stable clocks on my evga 780iftw board, I need at lease 1.42v to core. i could do windows fine, and run for hours at 1.3875, but that was just benching and so forth... 1.42 was need for me to get it stable 24/7 with CPU PLL of 1.6. NB at the same..

Also, read into Sneeky's idea. May be your ram messing up on you.
 
technicks

technicks

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Dont know if it is usefull to you but these are my settings for now. It's not Prime stable but i can game for as long as i want without any problems. Run Vantage and 06 with a nice score.

CPU ratio 8.5
FSB Strap 400Mhz
FSB 475
PCI-e 110
Dram 950Mhz
Dram Static control disabled
CPU 1.4v
CPU PLL 1.62v
NB 1.53v
FSB Termination voltage 1.4v
SB voltage 1.05
SB 1.5v 1.5v
Loadline Calibration disabled
 
M

Mr.Amateur

New Member
Joined
Jan 19, 2009
Messages
188 (0.03/day)
System Specs
System Name Pretty Colors
Processor Q9650 @ 4140 mhz
Motherboard Gigabyte ep45-ud3p rev. 1.1 f9 bios
Cooling Thermalright Ultra 120 eXtreme Black Edition
Memory 2x2gb OCZ Reapers pc2-1066
Video Card(s) Sapphire Vapor X 5870 Rev. 2
Storage Seagate 1500GB 7200 rpm
Display(s) LG HDTV monitor 23" 1920x1080
Case Coolermaster HAF 932
Audio Device(s) Steelseries Siberia USB soundcard
Power Supply OCZ ModXStream 700w
Software W7 Ultimate x64
Benchmark Scores I overclocked, that's achievement enough :D beat crysis.
Thanks for the help everyone :) <-does not mean stability...

I'll be testing 500x8 in a while as SneekyPeet suggested; I got that stable with my e8500, but then again it is a dual core.

I'm still skeptical about increasing voltages Cold Storm, no change in stability with increased vcore and whatnot...

Interesting voltages technicks, I may borrow some of them :)
 
M

Mr.Amateur

New Member
Joined
Jan 19, 2009
Messages
188 (0.03/day)
System Specs
System Name Pretty Colors
Processor Q9650 @ 4140 mhz
Motherboard Gigabyte ep45-ud3p rev. 1.1 f9 bios
Cooling Thermalright Ultra 120 eXtreme Black Edition
Memory 2x2gb OCZ Reapers pc2-1066
Video Card(s) Sapphire Vapor X 5870 Rev. 2
Storage Seagate 1500GB 7200 rpm
Display(s) LG HDTV monitor 23" 1920x1080
Case Coolermaster HAF 932
Audio Device(s) Steelseries Siberia USB soundcard
Power Supply OCZ ModXStream 700w
Software W7 Ultimate x64
Benchmark Scores I overclocked, that's achievement enough :D beat crysis.
500x8 does not boot into windows (drats). I tried 500x6 (1.36Vcore 1.4NB) and it BSOD: IRQL NOT LESS OR EQUAL. I also stepped it down to 471x6-got to vista loader, but BSOD afterwards.

Sorry if it seems obvious (I lack sleep...), but what does it mean-cpu, memory, or MB (it DID get 500x8 on dual core, so I don't think so)?
 
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