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Intel Core I5 - 750 Overclock?

post #1 of 19
Thread Starter 
Hello,

I am planning on overclocking my 1 year old Core i5 750 and was hoping to get it to 3.2 Ghz Via a 33 MHz increase on the bus (from 133 MHz to 166 MHz). I have the coolermaster N 212 Hyper and temps on full load are around 47C. Would it be safe? I will disable Turbo-Boost mode too.

Lastly, I'm not sure if I should touch the voltages; would the stock voltage be enough? Btw I am using The Asus P7P55D-Pro Motherboard and 1600mh memory which is currently running at 1333, but after OC will go up to 1600.

Thanks! and sorry for the mess
Edited by toxaris71 - 12/31/10 at 8:44pm
    
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Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
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x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
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Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
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post #2 of 19
Hiya

I have just today o/c my i5-750. I am getting 3.6 GHz from Vcore=1.17v. I found that even a small increse in Vcore would put my temps up a long way. With this setup Iam getting 65C under 100% load using prime 95. Using 180 x 20 to get 3.6 and seems stable after about 4 hrs testing.

Hope this is of some use
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-750 o/c to 3.6GHz Gigabyte P55-US3L Radeon HD 5770 4GB Crucial PC3-10700H (667MHz) 
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1 x 1TB Samsung Win 7 64-bit 1x OC 1X LG something cheap... 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-750 o/c to 3.6GHz Gigabyte P55-US3L Radeon HD 5770 4GB Crucial PC3-10700H (667MHz) 
Hard DriveOSMonitorKeyboard
1 x 1TB Samsung Win 7 64-bit 1x OC 1X LG something cheap... 
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wireless Micro$oft blulaser 5000 anything 
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post #3 of 19
Thread Starter 
thats a pretty good overclock

I'm planning on doing a more modest overclock for 3.2 Ghz. Thanks for the info but I am a little confused since Your voltage is 1.17 but mine is 1.21 and its not overclocked :/
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
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post #4 of 19
Every chip is different, mine takes about 1.27 to be 100% stable at 3.6GHz.
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i5 750 @ 3.93ghz 1.33v ASUS P7P55D Pro 2 x ATI Radeon HD 5770 8GB Crucial Ballistix 1600 
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WD Caviar Blue 500 & Samsung SpinPoint F1 750 Windows 7 Ultimate 64-bit Samsung SyncMaster 2494HM Corsair TX750 
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My System
(13 items)
 
  
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i5 750 @ 3.93ghz 1.33v ASUS P7P55D Pro 2 x ATI Radeon HD 5770 8GB Crucial Ballistix 1600 
Hard DriveOSMonitorPower
WD Caviar Blue 500 & Samsung SpinPoint F1 750 Windows 7 Ultimate 64-bit Samsung SyncMaster 2494HM Corsair TX750 
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post #5 of 19
To be honest, I would see where you get to on an overclock.

I think you will hit 3.2 very easily, but I'm running an i7 at 4GHz with 1.29V.

You may be able to squeeze out more than you'd expect.

So long as you don't push it, there isn't much risk. Just keep an eye on what temps you're getting as you increase and do it gradually.
    
CPUMotherboardGraphicsRAM
e5645 @ 4.2Ghz P6X58D-E 5450 x2 6Gb Corsair Dominator 1600 
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post #6 of 19
I'm at 3.32Ghz right now

heres my cpuz



Uploaded with ImageShack.us

I could have lower voltage but i've just not got the time currently to mess about and find it.
post #7 of 19
Thread Starter 
I just realized I wrote something that doesn't make sense! 166 x 20 = 3300 LOL
Thats what i get for typing this up in the middle of the night

Anyway, I meant 160MHz for the base clock, but as I'm starting to get the impression that overlocking is quite safe, perhaps I should go a little further?

This is probably going to be a permanent 24/7 OC, which raises a question in my mind - Would it be safe to run permanently? (with an overnight shutdown every few days or so)
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
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post #8 of 19
Here are my settings..
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-750 o/c to 3.6GHz Gigabyte P55-US3L Radeon HD 5770 4GB Crucial PC3-10700H (667MHz) 
Hard DriveOSMonitorKeyboard
1 x 1TB Samsung Win 7 64-bit 1x OC 1X LG something cheap... 
MouseMouse Pad
wireless Micro$oft blulaser 5000 anything 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-750 o/c to 3.6GHz Gigabyte P55-US3L Radeon HD 5770 4GB Crucial PC3-10700H (667MHz) 
Hard DriveOSMonitorKeyboard
1 x 1TB Samsung Win 7 64-bit 1x OC 1X LG something cheap... 
MouseMouse Pad
wireless Micro$oft blulaser 5000 anything 
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post #9 of 19
Most i5's will hit 4Ghz on reasonable voltage, so your cooler should be sufficient for that.
You can probably do 3.5/3.6 Ghz without upping the voltage.
    
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Intel i5 2500k | 4.5Ghz @ uknownV Gigabyte GA-Z68-D3 ASUS EAH6970 | 1000/1300 1.3v 2x2GB Corsair Dominator 1600Mhz 8-8-8 
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Samsung Spinpoint F3 500GB Windows 7 Ultimate 64-Bit BenQ G2222HDL + Hanns-G HQ191D Sapphire FirePSU 625w 
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GlobalWin YCC-61F1B (Modding planned) 
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CPUMotherboardGraphicsRAM
Intel i5 2500k | 4.5Ghz @ uknownV Gigabyte GA-Z68-D3 ASUS EAH6970 | 1000/1300 1.3v 2x2GB Corsair Dominator 1600Mhz 8-8-8 
Hard DriveOSMonitorPower
Samsung Spinpoint F3 500GB Windows 7 Ultimate 64-Bit BenQ G2222HDL + Hanns-G HQ191D Sapphire FirePSU 625w 
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GlobalWin YCC-61F1B (Modding planned) 
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post #10 of 19
Thread Starter 
Quote:
Originally Posted by mental.patient View Post
Most i5's will hit 4Ghz on reasonable voltage, so your cooler should be sufficient for that.
You can probably do 3.5/3.6 Ghz without upping the voltage.
I might go for 3.6 or more, however I'm not sure if that would have any consequences for a permanent overclock, I guess I'll go for 3.3, 3.2ish and maybe later on I'll experiment with higher clocks and possible higher voltages.
Thanks

Also thanks Upquark for the sharing ur config
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
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