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Very very odd E6300 OC...Read!

yannis76

yannis76

yannis76

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Joined
16 Aug 2004
Posts
804
Hi guys!

I have been overclocking the E6300 succesfully until 7x400=2800. From 2800 and up I have to raise some voltage in order to reach the 3150 new barrier. At this frequency there is something very very odd. Temperatures are lower!!!
For example at 2800 without any voltage increase I get 56/69C while at 3150 I get 53/60C!! Bear in mind that in 3150 I have disabled C1E and TM.
I do use CoreTemp and TAT to read the temps and the Orthos to stress the cpu. Any ideas? I am really stuck...
 
Agreed that the temperatures are too high....

However, the relatively small delta between idle and load temperatures suggests that the heatsink itself may be okay. Check that you've got a good connection between the heatsink and the CPU - look at the 'footprint' left by the thermal paste. Also, check that the case itself is getting enough ventilation. If the internal air temperature rises the CPU temp will rise in unison.
 
Maybe the BIOS power/temp monitoring is running the cpu fan at a slower than normal speed, so disabling C1E and TM is causing the cpu fan to spin faster?
That's the only solution I can think of, it's a weird problem :)
 
Yes it is almost certainly the C1E and TM being turned off. When this is off all controlled fans are running full speed all the time. I have left these disabled for this reason. With them enabled my highest stable overclock was 3.1Ghz and with them off 3.36Ghz which is now my 24/7 settings. 60C under full load is OK as long as it is still stable.
 
to get past the 3.3ghz mark what setting have you got in bios to enable you to get to this?

Anymore past what i am at the moment it wont boot into windows :(
 
I have the Geil 6400 and DS3. I need 1.37v after vdroop under load to be stable and depending on ambient run at 58 to 62c both cores fully loaded. I have vmch set to +0.1 and vmem +0.3 @ 5 5 5 15. The main thing is to make sure you cater for vdroop (the voltage drop that occurs under load. Think I have my Bios voltage set 1.4v to acheive this for my power supply m/b combination, yours may differ. If you dont have mem that can handle 480 fsb then you will not be able to reach this even if your cpu can. Also if you need to get to the memory settings and you have a DS3 you will need to hit CTRL F1 when you 1st get onto the bios to open up the memory settings in the overclock section at the left hand bottom of the bios screen. Some people have reported that setting VFSB to +0.1 have helped them establish stability but haven't needed to.
 
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