EggXpert

Hi guys,  I'm currently running my cpu (E6850) at a stable 3.6  GHz. I have been trying to see if I can get it to go a bit higher. I'm not power obsessed I'm just one of those people that got the E6850 3 days before the E8400 came out and would like as much performance out of it as possible. I'm not quite sure how to get it up any higher and I'm not sure what voltages I should have or any thing. My temps under full load are 50 degrees Celsius. I'll try putting up some pictures since it's kind of hard describing what I'm looking at here in the bios.

This is what I'm looking at. I'm sorry if its hard to see. If you guys need anymore information That I haven't listed please ask. 

It says in the picture thatmy FSB frequency is at 425, but it is not right now it is currently at 400.

• Is there anything that I have currently done that I shouldn't be doing? 

• Is it possible to get this cpu any higher and if so what would I need to do in the bios?
  

Thanks guys.

The max multiplier on the E6850 is 9 so you need to get the FSB up to 411 for 3.7 GHz, 422 for 3.8 GHz, 433 for 3.9 GHz or 444 for 4 Ghz.

If you have tried to do that and its not stable, then you need to increase the NB voltage. (CPU voltage is high enough (maybe too high already))

Take the voltages off auto and input a voltage.

Have you tested how high you can go with the FSB?  put the CPU at a multi of 6 and raise the FSB until you get instability.  That way you know its the motherboard and not the CPU that is limiting the OC.  Then raise the NB voltage and start upping the FSB again.  Depending on the board you should be able to hit 450-500.  Next, pick a stable FSB and raise the multi back up on the CPU.

Also, if you have the following settings on your board set them this way (not Auto)

Spread spectrum - disabled

Static read - disabled

CPU TM enable

Execute diable bit -enable

load line - enable

Also, I disable the two speedstep thermal throttling settings (C1E and EIST)

Voltages

CPU - no higher than where you have it at 1.5v.  I would even back off to 1.45v but if your temps are 50 at load then you ar OK.

CPU PLL <1.5v

NB <1.4

How high you go depends on your aversion to risk and temperatures you see.

 

For reference, I have an IP35 abit board and was able to hit 4 GHz with an E6750 (8x500) with water cooling.  Everyday OC was 3.8 (8x475).  On air, I am using 8x400 = 3.2 but I think it could go to 8x450 = 3.6.  I would suspect you could hit 4 GHz if you tweaked enough and were willing to accept 60 degrees as a load temp.

 

 

Thanks dude, this is very helpful. I'll try what you said.

Well, the highest I can get it to is 3.6. Couldn't get it to go any higher, but thanks to your suggestion there is less voltages running through it and less heat so thank you.

I have an E6700 and it gets to 3.6-3.7 ghz before having issues.  It looks like you are getting close to what one can expect from an E6XXX series CPU.  It seems that these chips hit a wall at around this speed and, for me, no amount of tweaking, additional voltage increase etc. seems to make a difference.