Advice on OC'in i7 to 4ghz with intel

[tankskun]

A friend of mine asked me how to OC an i7 C0 to the special 4ghz mark
The Current setup is:
i7 920 C0/C1 - Coolermaster Cooler
Kingston Hyper X 3GB 2000MHZ (PC3-16000) DDR3
Intel X58SO Motherboard

I succesfully OC my own i7 rig to 4ghz on air with my Gigabyte MOBO and could proberly hit 4.2ghz easily. But im worried about my friends intel board if its capable for the job.

What advice should I suggest? Just the usual method or does anyone know better

Thanks.

 

[D D Danneh]

No reason why he couldn't try it, as long as he stays within reasonable voltages. At the very least he'll probably get 3.4-3.6, which is a nice boost.

 

[tankskun]

CPU Ratio Setting - Auto
Intel (R) SpeedStep (TM) Tech - Enabled
Intel (R) Turbo Mode Tech - Disabled
BCLK Frequency - 200
DRAM Frequency - DDR3 - 1600MHz

CPU Vcore - 1.40000v
CPU PLL - 1.80000v
QPI/vtt Voltage - 1.515v
IOH Core - 1.100v
DRAM Voltage - 1.66v

Would this be a good safe method to just attempt at first go

 

[setter]

Cpu vcore of 1.4 is pretty high, a DO stepping will do 4ghz on 1.2500-1.300 ono, a CO stepping may need more, also 1.515 on qpi/vtt is way over the reccomended 1.3500, ioh and ich are best kept below 1.3.

 

[tankskun]

Strange because my D0 would only run stable in prime 95 with Cpu vcore of 1.4 Any less and it will just BSOD. So I just put mine back to stock lol

Anyway is this best to suggest?

CPU Ratio Setting - Auto
Intel (R) SpeedStep (TM) Tech - Enabled
Intel (R) Turbo Mode Tech - Disabled
BCLK Frequency - 200
DRAM Frequency - DDR3 - 1600MHz

CPU Vcore - 1.35000v
CPU PLL - 1.80000v
QPI/vtt Voltage - 1.3000v
IOH Core - 1.100v
DRAM Voltage - 1.66v

Also can someone recommend me the above settings for 3.4ghz as I think it may easier to start with and then move on upwards.

 

[PakJai]

Strange because my D0 would only run stable in prime 95 with Cpu vcore of 1.4 Any less and it will just BSOD. So I just put mine back to stock lol

Anyway is this best to suggest?

CPU Ratio Setting - Auto
Intel (R) SpeedStep (TM) Tech - Enabled
Intel (R) Turbo Mode Tech - Disabled
BCLK Frequency - 200
DRAM Frequency - DDR3 - 1600MHz

CPU Vcore - 1.35000v
CPU PLL - 1.80000v
QPI/vtt Voltage - 1.3000v
IOH Core - 1.100v
DRAM Voltage - 1.66v

Also can someone recommend me the above settings for 3.4ghz as I think it may easier to start with and then move on upwards.

It doesn't necessarily mean it's your CPU that's giving you the blue screen... it could be anything from your memory, uncore to other voltage settings.

I would start off by running standard memory and standard cpu settings and then gradually ramp up the settings bit by bit. This way it will be easier for you to keep track of what might have went wrong when you hit instability.

Try these once you have loaded your 'Optimized settings' under bios:

CPU Ratio Setting - 20
Intel (R) SpeedStep (TM) Tech - Enabled
Intel (R) Turbo Mode Tech - Disabled
BCLK Frequency - 170
DRAM Frequency - DDR3 - (Set memory multiplier to 6, should give you 1020MHz)
Uncore: x13
CPU Vcore - 1.25000v
CPU PLL - 1.80000v
QPI/vtt Voltage - 1.1000v
IOH Core - 1.100v
DRAM Voltage - 1.50v

 

[setter]

It doesn't necessarily mean it's your CPU that's giving you the blue screen... it could be anything from your memory, uncore to other voltage settings.

I would start off by running standard memory and standard cpu settings and then gradually ramp up the settings bit by bit. This way it will be easier for you to keep track of what might have went wrong when you hit instability.

+1, i started on a lowly clock of 3.0ghz on low voltages, raising the bclk 10mhz at a time, only raising voltages when i hit stability issues.

 

[tankskun]

Thanks both for the great advice. I'l get him to look at this useful thread.

 

[JonJ678]

I didn't think Intel boards offered any overclocking options whatsoever. Certainly my research into an office build + subsequent experience with the G31 board chosen indicated no overclocking options whatsoever.

Hopefully your friends motherboard doesn't follow this trend.