E7200 What overclock can I expect?

[Kingbee13]

Looks Like I am settling on 3.8 ghz, and 1.328 core voltage under load, I can get to 4 but temps and voltage increases past 3.8 seem to be on an almost exponential curve so its not worth it

Final temp readings after an hour of stress testing have stablaized in the mid 60's, and I can live with that.

I did not change any other voltages besides core voltage

Bios 1.4
CPUZ 1.328 load
CPUZ 1.36 Idle
FSB 422
multiplier 9
Idle Temp 37C
Load Temp 65C

 

[Cheex]

I'm just curious here....why not 400x9.5 for your 3.8GHz??


Also, I'm having trouble getting mine to 4GHz also. I'm completely stable at 3.8GHz but I was thinking that aside from vCore, what else should I increase?? How much is a "safe" VTT voltage and will that help me get there??

BTW: VID on my E7200 is 1.175 volts.

 

[error8]

Originally posted by: Cheex
I'm just curious here....why not 400x9.5 for your 3.8GHz??


Also, I'm having trouble getting mine to 4GHz also. I'm completely stable at 3.8GHz but I was thinking that aside from vCore, what else should I increase?? How much is a "safe" VTT voltage and will that help me get there??

BTW: VID on my E7200 is 1.175 volts.

There can be only three things that can hold you back for 4 ghz: ram ( not your case), FSB ( don't think so if you upped the MCH voltage) and cpu voltage. VTT doesn't matter much or maybe not at all. I didn't bothered to see if keeping it at stock or at 1.3 V ( which I'm currently using ) makes a difference. The bottom line is that 1,46V (Vcore) were needed for 4 ghz and VTT didn't help at all ( 1.3 V or 1.42 V gave the same result).

What is your current Vcore for 3.8ghz?

 

[Cheex]

My current Vcore is 1.39375 (one notch down from 1.4V). I haven't tried going lower, although I think I can keep it stable there with a bit less Vcore. I just went to 1.4V and set it to 3.8GHz (400x9.5) and ran OCCT and called it a day. (Please note that that is not advised for those persons new to overclocking.)

Now I want to fine tune....

I believe I can get 4GHz stable. What was the VID on your chip?

 

[error8]

My VID is 1,125 V. That being said, I have little faith that you will have a stable 4 ghz at 1,4 V. Oh well, but what harm ca 1,5 V do? (I'm kidding of course)

 

[Cheex]

Any other configuration make a difference or is it all just raw clock speed??

By this I mean, aside from the 12.5MHz, how different is 425x9.5 (4037.5MHz) as against 450x9 (4050MHz)....???

 

[error8]

Originally posted by: Cheex
Any other configuration make a difference or is it all just raw clock speed??

By this I mean, aside from the 12.5MHz, how different is 425x9.5 (4037.5MHz) as against 450x9 (4050MHz)....???

I didn't try it. It should be a bit faster, if the FSB is higher, isn't it? The problem is that my ram doesn't hit 900 mhz ( because it's crappy and stupid :| ) so I can't tell you how it works. Try it and see, but I guess it makes more difference for synthetic programs, then it does in real use situation.

 

[Tempered81]

Originally posted by: Cheex
My current Vcore is 1.39375 (one notch down from 1.4V).

yah but what is it in cpu-z during prime load?

 

[Tempered81]

lower fsb & multi puts less stress on the mobo, and usually requires less volts for the cpu

 

[Cheex]

Originally posted by: jaredpace

Originally posted by: Cheex
My current Vcore is 1.39375 (one notch down from 1.4V).

yah but what is it in cpu-z during prime load?

Never mind that. It isn't OCCT stable there. The minimum voltage that will keep me stable at 3.8GHz is 1.4V.