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AMD FX8150 over clocked to 4.6G...

post #1 of 9
11/12/12 at 1:14pm
Thread Starter 
Hi...I purchased a new rig and are currently overclocking my FX8150 to 4.6G...

Below is my configuration:

Corsair 650D

Asus Crosshair Formula V

AMD FX8150

Corsair AX1200i

Corsair Vengeance 1600MHZ 32GB

Corsair GT SSD SATIII 120GB

Hitachi 7200 RPM SATIII 3TB

Western Digital 7200 SATIII 3TB

LG Blueray RW

Cyberpower PC 240MM cooling kit with 4 Corsair High Performance 120mm fans in push pull configuration, pushing pulling into the case...

Stock case fans are currently mounted on the outside pulling air out of the case.

The current CPU voltage is set to 1.45V, with the multiplier at 22 and the bus at 210. This is the highest I can take the clock without a core falling(usually core 7) during Prime stress testing. Max temp so far at full load is 62C, average is 61C.

Any suggestions on how to squeeze some more performance or am done due to the core 7 failing if I go higher. BTW it starts with core 7 but others fail too if I continue to increase the clock...

Attach is a screen shot...
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post #2 of 9
11/12/12 at 1:16pm
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Quote:
Originally Posted by jrgnd77 View Post

Hi...I purchased a new rig and are currently overclocking my FX8150 to 4.6G...
Below is my configuration:
Corsair 650D
Asus Crosshair Formula V
AMD FX8150
Corsair AX1200i
Corsair Vengeance 1600MHZ 32GB
Corsair GT SSD SATIII 120GB
Hitachi 7200 RPM SATIII 3TB
Western Digital 7200 SATIII 3TB
LG Blueray RW
Cyberpower PC 240MM cooling kit with 4 Corsair High Performance 120mm fans in push pull configuration, pushing pulling into the case...
Stock case fans are currently mounted on the outside pulling air out of the case.
The current CPU voltage is set to 1.45V, with the multiplier at 22 and the bus at 210. This is the highest I can take the clock without a core falling(usually core 7) during Prime stress testing. Max temp so far at full load is 62C, average is 61C.
Any suggestions on how to squeeze some more performance or am done due to the core 7 failing if I go higher. BTW it starts with core 7 but others fail too if I continue to increase the clock...
Attach is a screen shot...

You could alway disable some cores in the bios. I used to do that with my X6. I could reach much higher speeds with only 4 core (4.5-ish IIRC)
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post #3 of 9
11/12/12 at 1:19pm
Thread Starter 
Thank you...Will give that a try...BTW the ambient temperature was 76F for that test...
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post #4 of 9
11/12/12 at 1:24pm
If it's stable at 4.6 and thats all you can squeeze out under 8 cores than why would you disable 4 cores for 'performance' reasons. The slight boost with an extra 200mhz is not going to nearly outweight the fact you are now down 4 cores. thumb.gif

Unless you strictly use this for gaming (in which case, why did you buy a 8150)?
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post #5 of 9
11/12/12 at 1:26pm
Don't use Prime95 for our type of CPU's use IBT its better. Prime95 can make a vishera chip fail at stock settings. Not sure why but most people with a vishera chip have that issue. try 20 runs of IBT to determine if its stable. its what I use.
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post #6 of 9
11/12/12 at 1:39pm
Thread Starter 
Quote:
Originally Posted by SoloCamo View Post

If it's stable at 4.6 and thats all you can squeeze out under 8 cores than why would you disable 4 cores for 'performance' reasons. The slight boost with an extra 200mhz is not going to nearly outweight the fact you are now down 4 cores. thumb.gif
Unless you strictly use this for gaming (in which case, why did you buy a 8150)?

Actually doubles as my ESXi rig/lab also, hence the 8150...I run 2 virtual servers and a virtual router...

I am happy with 4.6...Just wanted to know if I could get some more out of it...

Quote:
Originally Posted by Dimaggio1103 View Post

Don't use Prime95 for our type of CPU's use IBT its better. Prime95 can make a vishera chip fail at stock settings. Not sure why but most people with a vishera chip have that issue. try 20 runs of IBT to determine if its stable. its what I use.


Didn't know that...I will look into IBT...Thanks...
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post #7 of 9
11/12/12 at 2:02pm
Quote:
Originally Posted by Dimaggio1103 View Post

Don't use Prime95 for our type of CPU's use IBT its better. Prime95 can make a vishera chip fail at stock settings. Not sure why but most people with a vishera chip have that issue. try 20 runs of IBT to determine if its stable. its what I use.

Interesting. Why?
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post #8 of 9
11/12/12 at 2:06pm
Thread Starter 
Quote:
Originally Posted by Dimaggio1103 View Post

Don't use Prime95 for our type of CPU's use IBT its better. Prime95 can make a vishera chip fail at stock settings. Not sure why but most people with a vishera chip have that issue. try 20 runs of IBT to determine if its stable. its what I use.

Just ran IBT, it ran a bit cooler...

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post #9 of 9
11/12/12 at 2:12pm
Quote:
Originally Posted by Spacedinvader View Post

Interesting. Why?

Something to do with the integer calculations not being strong enough on fx chips so it reports failed WU's. I am quoting from another thread I cant find at moment. SOmething in that neighborhood anyways. Mine fails at stock so reasons aside I don't use prime.
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