Need help Overclocking Fx 8350

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tshrjain

tshrjain

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Nov 26, 2013
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MoBo: Asus M5a97 Evo R2.0
CPU Cooler: CM Hyper Evo 212
CPU: Fx 8350

Was excited when I received my 8350, thinking I'll OC it to 4.5Ghz and stay there. Before this I had Fx 6300, and I had OC'd it to 4.1Ghz just by increasing the CPU ratio to 21(maybe, don't remember the exact number). It was stable and never gave me any problem whatsoever.

But 8350 is a totally different story, I tried so many combinations, went through a lot of guides including the one located here:
http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard
And a video: https://www.youtube.com/watch?v=MckeAmnDeTk

Nothing is working out for me. I am able to get a stable clock of 4.3Ghz at a voltage of around 1.3V, using the forum guide mentioned above, but the temperatures are too high.

When I have my PC running on default settings, without any overclock I get core temperatures of about 45C (Prime95 stress test) and around 16C on idle. But as soon as I start to overclock, and keep CPU at 4.0Ghz and voltage of 1.275V, the temperatures start rising above 60C. And 4.0Ghz is just the normal clock.

Thanks for your help.
 
Solution
madmatt30
Check your cooler fitting mate , the evo should 'just' about manage 4.5ghz at a push with voltage around 1.4v.

You should be pushing 4.3ghz with 1.36-1.38v max , & temps under prime shouldn't really he getting more than 55c at that.

Obviously ambient temps & case airflow play a big part in this.

Use the thermal margin in AMD overdrive to measure temps while stress testing.
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Shaun o

Shaun o

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Oct 7, 2007
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You probably got a bad bit of silicone tshrjain.

Check to see if the cpu has a Vishera cpu core by using Cpuz.
Sometimes it`s the way it is luck of the silicone cpu lottery.

You could always try a return of the cpu claiming it`s not working right in some way and asking for a replacement.
And you may get a cpu in return with a good quality silicone substrate that will allow you to overclock it higher.

By the way the more cores the more core voltage, you should be setting the cpu core voltage to at least 1.45 to 1.46v if you want it to get to 4.6Ghz. 200Mhz base x 23 on the cpu multiplier use a manual core voltage setting don`t let the bios auto set the core voltage.

If it wont go that high in frequency, without kicking a lot of heat out at that core voltage setting of 1.45 to 1.46v
Its a bad bit of cpu silicone.

With a prime 95 it should hit no more than 60c to 65c with a Evo 212 sat on it with medium rpm fan speeds set.

Max is about 78 to 79c.
 
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madmatt30

madmatt30

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Jan 1, 2013
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Check your cooler fitting mate , the evo should 'just' about manage 4.5ghz at a push with voltage around 1.4v.

You should be pushing 4.3ghz with 1.36-1.38v max , & temps under prime shouldn't really he getting more than 55c at that.

Obviously ambient temps & case airflow play a big part in this.

Use the thermal margin in AMD overdrive to measure temps while stress testing.
 
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