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just OCed my i7 950

post #1 of 17
Thread Starter 
Hello,

I just overclocked my Core i7 950 from the stock 3.06GHz to 3.22Ghz mainly so I can get my RAM to run at 1600 (dude to OC running at 1680) because I now have 3 sticks of 2GB DDR3 and I wanted to finally take advantage of their 1600 speed.

My cooler is the Cooler Master Geminii S with stock fan. What temps should I be getting. My idle temps are as follows as reported by RealTemp:
Core 0: 38
Core 1: 32
Core 2: 38
Core 3: 34

Are these good idle temps for this cooler? I am worried that I might have applied the heat paste and heatsink improperly, its not big deal as my case (NZXT Gamma) has a hole under the mobo where the CPU is mounted so I can easily reseat. Do I need to reseat?

What are safe voltages for me to use? All my voltages are at most 1.2875 as I heard going to1.3 or higher is dangerous for the CPU / mobo.


I am very new to this and would appreciate some answers
Thanks!
Wheatley
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CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
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ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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Wheatley
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Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
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ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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post #2 of 17
Voltages are only dangerous with matching heat, unless you are planning to exceed 1.55 volts. Your idle temps are not important, what is important is your load temps. I suggest using Prime95 to stress your system, then take a reading. Also, you are using far too much voltage for a mere 200 MHz. 1.28 was sufficient to get my 950 all the way to 4 GHz stable.
    
CPUMotherboardGraphicsRAM
i7 950 4.41 GHz 1.36V 24/7 5.00 GHz 1.568V HT ON Asus Sabertooth X58 Sapphire Radeon 5770 4GB G Skill Ripjaws DRR3 1600 @ 1685 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar Blue 320GB Sata III HDD LITE-ON 24X DVD Writer Windows 7 Ultimate AOC 20" 
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CPUMotherboardGraphicsRAM
i7 950 4.41 GHz 1.36V 24/7 5.00 GHz 1.568V HT ON Asus Sabertooth X58 Sapphire Radeon 5770 4GB G Skill Ripjaws DRR3 1600 @ 1685 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar Blue 320GB Sata III HDD LITE-ON 24X DVD Writer Windows 7 Ultimate AOC 20" 
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by roflolol View Post
Voltages are only dangerous with matching heat, unless you are planning to exceed 1.55 volts. Your idle temps are not important, what is important is your load temps. I suggest using Prime95 to stress your system, then take a reading. Also, you are using far too much voltage for a mere 200 MHz. 1.28 was sufficient to get my 950 all the way to 4 GHz stable.
Thanks for your response. The reason the voltage is set that high is because, the machine would not overclock otherwise, I have no idea why. I went in and changed the BCLCK / multipliers on the stock voltage and rebooted, then I went to check if it was OCed and to my surprise I noticed that nothing changed, so I went back and boosted the voltage then rebooted then the overclock took. Do you know why this is happening? my mother board is a Gigabyte X58A-UD3R
Wheatley
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CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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Razer Salmosa VIntage Sun MIcrosystems Altec Lansing PC Speakers 
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Wheatley
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Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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post #4 of 17
I have a gigabyte and this happens to me... it seems like the bios have to reset them selves before applying the over clock.
Operation Polemos
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Operation Polemos
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post #5 of 17
Congrats on the overclock! 1.3V is fine for your CPU and should be fine for you mobo socket as well. Typically 1.4V is the cutoff though people do occasionally stray past that number when benching. I'm running my i7 930 at a hair under 1.3V for a 4.21ghz clock. I run mine 24/7 as well.

As for your temp's, I googled the cooler as I have no personal reference (mine's under water), and this is what I came up with:

Q9450 @ stock and 3.2ghx clock

Newegg user comments with an i7 chip and this cooler

But honestly, your idle temps are fine. What are your load temps? Fire up Prime95 or something and keep an eye on it. Let us know.
    
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[INTEL] i7 930, 4.4ghz @ 1.27V [Asus] Rampage III Extreme [Sapphire] 2X 6950's Flashed to 6970's @950/1425 [G.SKILL] Ripjaws X Series 12GB DDR3 @ 2133 
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[Crucial] 2X C300's in Raid0 & [Samsung] 2X 1TB F3 [Hewlett-Packard] DVD-RW [Microsoft] Windows 7 64-bit [Asus] 3X 23" LCD 
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post #6 of 17
Thread Starter 
Where can I find a stand alone installer for Prime95, I kinda don't want to register to install it
Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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Razer Salmosa VIntage Sun MIcrosystems Altec Lansing PC Speakers 
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Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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post #7 of 17
Thread Starter 
Ok got Prime95 going and my full load temps are
Core 0: 69
Core 1:67
Core 2:68
Core 3:66

is this good or bad? If it is good how much more can I OC with this cooler?
Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
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post #8 of 17
those are excellent temps. I would suggest going all in, don't change your vcore, but try to run a 191 BCLK with a 21x multi. i7s like odd multis better than evens. That should give you 4 GHz. If you got a good 950, everything will be stable and dandy. If you didn't, it will bluescreen, at which point you double bump the vcore and try again.

I took approximately 1.23 volts to get my 950 stable at 4 GHz, but once you go past about 4.2, voltage requirements get exponentially larger.

You don't have a problem until one of your cores starts to hit 85 or higher, although ideally your temps should be lower.
    
CPUMotherboardGraphicsRAM
i7 950 4.41 GHz 1.36V 24/7 5.00 GHz 1.568V HT ON Asus Sabertooth X58 Sapphire Radeon 5770 4GB G Skill Ripjaws DRR3 1600 @ 1685 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar Blue 320GB Sata III HDD LITE-ON 24X DVD Writer Windows 7 Ultimate AOC 20" 
KeyboardPowerCaseMouse
Logitech MX 3200 SeaSonic 520w NZXT M59 Roccat Kone[+] 
Mouse Pad
Padless! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 950 4.41 GHz 1.36V 24/7 5.00 GHz 1.568V HT ON Asus Sabertooth X58 Sapphire Radeon 5770 4GB G Skill Ripjaws DRR3 1600 @ 1685 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar Blue 320GB Sata III HDD LITE-ON 24X DVD Writer Windows 7 Ultimate AOC 20" 
KeyboardPowerCaseMouse
Logitech MX 3200 SeaSonic 520w NZXT M59 Roccat Kone[+] 
Mouse Pad
Padless! 
  hide details  
Reply
post #9 of 17
Thread Starter 
Quote:
Originally Posted by roflolol View Post
those are excellent temps. I would suggest going all in, don't change your vcore, but try to run a 191 BCLK with a 21x multi. i7s like odd multis better than evens. That should give you 4 GHz. If you got a good 950, everything will be stable and dandy. If you didn't, it will bluescreen, at which point you double bump the vcore and try again.

I took approximately 1.23 volts to get my 950 stable at 4 GHz, but once you go past about 4.2, voltage requirements get exponentially larger.

You don't have a problem until one of your cores starts to hit 85 or higher, although ideally your temps should be lower.
I tried going to 3.6GHz before and I bluescreened. How do I work around that?
Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
MouseMouse PadAudio
Razer Salmosa VIntage Sun MIcrosystems Altec Lansing PC Speakers 
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Wheatley
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 950 @3.06GHz Gigabyte X58A-UD3R R.2.0 Sapphire AMD 7950 3GB Reference A-DATA Gaming Series 6GB DD3 1600 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 500GB SATA II (x2) LITEON SATA DVD Burner Phanteks ph-tc14pe Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
ViewSonic VX2250WM-LED 22" 1080p Apple Extended Keyboard II moded to USB Antec Earthwatts 750 Watt Modular NZXT Phantom (White/Modded) 
MouseMouse PadAudio
Razer Salmosa VIntage Sun MIcrosystems Altec Lansing PC Speakers 
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post #10 of 17
Interesting I have the same MOBO and I OC'd my C0/C1, 920 to 3.6GHz (21x) using only 1.184v

There are a lot of variations between these chips I am noticing.
    
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