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Help for reaching 3.8 or higher by Core i7-930

post #1 of 4
Thread Starter 
Hello guys,
I requested advice in this topic “Guide to Overclocking the Core I7 920 or 930 to 4.0ghz “ but after 3 weeks I haven’t any reply, so I have to open new topic.

I am on 3.7Ghz with my Core i7 930/GA-X58A-UD7(rev.1/F7) for 6 month and This is my voltage setup on bios:

CPU Ratio: 21
Turbo: Off
Blk: 177
HT: Off

Vcore: 1.250(Bios) 1.232(CPUZ)

CPU PLL: 1.800
QPI/DRAM: 1.31
IOH: Auto
ICH: Auto

(it seems my QPI/DRAM is on border because when I reduce it a little I will have cold boot problem!)

It passed prime95 1hour test and as I said I am using it for 6 month.
but today I I tried 181 for 3.8 . It crashed (0x00000124) during Prime95 test.
I increased my QPI/VTT voltage to 1.33 but again crashed. Increasing Vcore cannot solve problem even up to 1.30!
Temp is OK and around 64C for all cores during prime95.

Help me please , I know most of you are enjoying with your 920/930 on 4.0Ghz or above. So let me join you please .

Thanks and regards
post #2 of 4
Quote:
Originally Posted by ali744 View Post
Hello guys,
I requested advice in this topic “Guide to Overclocking the Core I7 920 or 930 to 4.0ghz “ but after 3 weeks I haven’t any reply, so I have to open new topic.

I am on 3.7Ghz with my Core i7 930/GA-X58A-UD7(rev.1/F7) for 6 month and This is my voltage setup on bios:

CPU Ratio: 21
Turbo: Off
Blk: 177
HT: Off

Vcore: 1.250(Bios) 1.232(CPUZ)

CPU PLL: 1.800
QPI/DRAM: 1.31
IOH: Auto
ICH: Auto

(it seems my QPI/DRAM is on border because when I reduce it a little I will have cold boot problem!)

It passed prime95 1hour test and as I said I am using it for 6 month.
but today I I tried 181 for 3.8 . It crashed (0x00000124) during Prime95 test.
I increased my QPI/VTT voltage to 1.33 but again crashed. Increasing Vcore cannot solve problem even up to 1.30!
Temp is OK and around 64C for all cores during prime95.

Help me please , I know most of you are enjoying with your 920/930 on 4.0Ghz or above. So let me join you please .

Thanks and regards
The reason you are having a problem at 181 BCLK is most likely due to a phenomenon known as a BCLK hole. Don't ask me how it works or why it happens, but at certain BCLK values it just will not work.

Try raising your BCLK to 190, raise your QPI/VTT to 1.35 and your VCore to 1.3. Set your Load Line Calibration to Level 2 also. A CPU PLL of 1.7 may also help.

Stress test these settings with prime95 for at least 2 or 3 hours. If you fail, it is most likely due to your QPI/VTT voltage and raise that until you pass. If you pass then try gradually lowering your VCore until you don't pass anymore, then raise it back up a notch.

This should give you 4.0GHz with the lowest possible VCore. Good luck and happy OC'ing!
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Main Rig
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Home Theater PC
(12 items)
 
 
CPUMotherboardGraphicsGraphics
i7 3930k Asus P9X79 Pro XFX Radeon HD 6870 XFX Radeon HD 6870 
RAMHard DriveHard DriveOptical Drive
4x4GB DDR3 1600 Corsair Vengeance Series Seagate 1.5TB 7200rpm Western Digital Caviar Blue 500GB 7200rpm Asus Optical Drive 
CoolingCoolingCoolingCooling
XSPC Raystorm Waterblock Black Primochill Tubing 1/2" ID / 3/4" OD XSPC RX240 XSPC Dual Bay Reservoir 
CoolingOSMonitorKeyboard
Swiftech MCP655 Windows 7 Ultimate 64 bit Dell U2410 Das Model S Cherry MX Blue 
PowerCaseMouseMouse Pad
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Logitech X540 
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 5200+ GA-MA78LM-S2H AMD 760G (Microsoft Corporation WDDM 1.1)  PNY Electronics  
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post #3 of 4
Thread Starter 
Thank you,
On BCLK 190 ,it passed Prime test on:
QPI/VTT:1.455
VCore:1.275 (CPUZ:1.248)

This QPI is on Pink range, is this OK and normal? Or unusual risk?
I heard Intel Maximum safe recommendation is 1.35!

Regards
Edited by ali744 - 1/2/11 at 11:15pm
post #4 of 4
Quote:
Originally Posted by ali744 View Post
Thank you,
On BCLK 190 ,it passed Prime test on:
QPI/VTT:1.455
VCore:1.275 (CPUZ:1.248)

This QPI is on Pink range, is this OK and normal? Or unusual risk?
I heard Intel Maximum safe recommendation is 1.35!

Regards
Yes, there recommended range is only 1.35 though 1.45 really isn't that high. I wouldn't worry about it. QPI voltage generally doesn't cause very much degradation.
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4x4GB DDR3 1600 Corsair Vengeance Series Seagate 1.5TB 7200rpm Western Digital Caviar Blue 500GB 7200rpm Asus Optical Drive 
CoolingCoolingCoolingCooling
XSPC Raystorm Waterblock Black Primochill Tubing 1/2" ID / 3/4" OD XSPC RX240 XSPC Dual Bay Reservoir 
CoolingOSMonitorKeyboard
Swiftech MCP655 Windows 7 Ultimate 64 bit Dell U2410 Das Model S Cherry MX Blue 
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Main Rig
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Home Theater PC
(12 items)
 
 
CPUMotherboardGraphicsGraphics
i7 3930k Asus P9X79 Pro XFX Radeon HD 6870 XFX Radeon HD 6870 
RAMHard DriveHard DriveOptical Drive
4x4GB DDR3 1600 Corsair Vengeance Series Seagate 1.5TB 7200rpm Western Digital Caviar Blue 500GB 7200rpm Asus Optical Drive 
CoolingCoolingCoolingCooling
XSPC Raystorm Waterblock Black Primochill Tubing 1/2" ID / 3/4" OD XSPC RX240 XSPC Dual Bay Reservoir 
CoolingOSMonitorKeyboard
Swiftech MCP655 Windows 7 Ultimate 64 bit Dell U2410 Das Model S Cherry MX Blue 
PowerCaseMouseMouse Pad
Corsair TX850 NZXT Phantom Gigabyte M8000X Razer Goliathus 
Audio
Logitech X540 
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 5200+ GA-MA78LM-S2H AMD 760G (Microsoft Corporation WDDM 1.1)  PNY Electronics  
RAMHard DriveOptical DriveCooling
PNY Electronics  Western Digital Caviar Blue Basic DVD Multi Recorder Stock 
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