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Voltages not right on i5 2500K

post #1 of 6
7/16/12 at 12:31am
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I'm overcloking an Intel i5 2500K to 4.7GHz, however i think my Voltages aren't right. I sent the CPU's voltage to 1.35 on the BIOS but when i open CPU-Z or the ASUS AI Suite it shows that my Voltage is 1.43.mad.gif Am i setting anything wrong should i change any of the other settings? Also i tried lowering the voltage in the BIOS to 1.20 to see if it affected anything, and the CPU-Z voltage changed to 1.36 but once i started Prime 95 i got a blue screen.mad.gif
463
BTW my Specs are
i5 2500K
P8Z68V-LX
Thermaltake Water 2.0 Extreme
8GB Kingston RAM
1TB 7200RPM HDD
128GB Samsung 830 SSD
Saphirre HD 6950 2GB
Thanks:thumb:
Carlos
Edited by tortuaco - 7/16/12 at 12:35am
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post #2 of 6
7/16/12 at 2:18am
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Quote:
Originally Posted by tortuaco View Post

I'm overcloking an Intel i5 2500K to 4.7GHz, however i think my Voltages aren't right. I sent the CPU's voltage to 1.35 on the BIOS but when i open CPU-Z or the ASUS AI Suite it shows that my Voltage is 1.43.mad.gif Am i setting anything wrong should i change any of the other settings? Also i tried lowering the voltage in the BIOS to 1.20 to see if it affected anything, and the CPU-Z voltage changed to 1.36 but once i started Prime 95 i got a blue screen.mad.gif
463
BTW my Specs are
i5 2500K
P8Z68V-LX
Thermaltake Water 2.0 Extreme
8GB Kingston RAM
1TB 7200RPM HDD
128GB Samsung 830 SSD
Saphirre HD 6950 2GB
Thanks:thumb:
Carlos

Try overclocking through the bios and not using software, Its the most reliable way to change settings. you need to adjust load line calibration to stop the voltage dropping under load, set this to medium or high
Edited by Chewy - 7/16/12 at 2:23am
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post #3 of 6
7/16/12 at 2:33am
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I did overclock through the BIOS, I'm just showing the ASUS Suite to show my BIOS's settings. Also since its not a high end board LLC has only three settings Enabled, Disabled and Auto rolleyes.gif. I dont have the regular, medium, high, ultra high or extreme settings the PRO version has mad.gif.
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post #4 of 6
7/16/12 at 4:43am
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Quote:
Originally Posted by tortuaco View Post

I did overclock through the BIOS, I'm just showing the ASUS Suite to show my BIOS's settings. Also since its not a high end board LLC has only three settings Enabled, Disabled and Auto rolleyes.gif. I dont have the regular, medium, high, ultra high or extreme settings the PRO version has mad.gif.

For the same price you could have gone with an asrock extreme 4 board, the asus board you have is entry level but should still be able to hold a mild overclock, How does it handle at around 4.5ghz? Your instability is most likely caused by high vcore voltage at idle that drops off sharply under load due to limited vdroop control.
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post #5 of 6
7/16/12 at 6:43am
all you need to do is go back in to bios and set your cpu voltage to offset mode, change the mode sign to - or + according to if the voltage changes to hight or lower. and try again. Then go in either direction until you get to the lowest stable voltage (mine runs around 1.264v and is stable as can be @ 4.6GHz). what this does is reduce or increase the voltage from current value to one that will work safely. Set LLC to enable and leave it for now. put cpu power phase control on optimized. it's not a good idea to take power duty control off of T.Probe, so i leave it at that. get back to me if need be.
Edited by cholly - 7/16/12 at 6:49am
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post #6 of 6
7/16/12 at 12:26pm
Thread Starter 
Quote:
Originally Posted by cholly View Post

all you need to do is go back in to bios and set your cpu voltage to offset mode, change the mode sign to - or + according to if the voltage changes to hight or lower. and try again. Then go in either direction until you get to the lowest stable voltage (mine runs around 1.264v and is stable as can be @ 4.6GHz). what this does is reduce or increase the voltage from current value to one that will work safely. Set LLC to enable and leave it for now. put cpu power phase control on optimized. it's not a good idea to take power duty control off of T.Probe, so i leave it at that. get back to me if need be.
Thanks, but can i see your BIOS settings, maybe take a print screen or right down your settings, please. Because i don't exactly understand the Offset voltage. Right know i have it on + and offset at around .70 or .80 don't remember but the color changed from white to purple/pink, if i go to.100 it turns to red. What does that mean?
Thanks thumb.gif
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