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Overclocking help - FX 8350

post #1 of 12
Thread Starter 
CPUZ

So I set the voltage to manual and to 1.313 votls, which forces it to 1.318. This voltage was picked automatically as I hadn't changed the setting prior. Upon running BF4 and Furmark, everything was fine and smooth with the core reaching 47 C. Once I bumped the clocks to 210 x 24 to get 5 GHz, it wouldn't load windows. So I changed the settings back to 205 x 22, and here I am. Increasing voltage to 1.325 or higher didn't resolve the issue. Temps shot up to 49 C as indicated in BIOS.

What are my options? I am going to lap the chip, which I should have done before putting it in, but I wanted to test it with and without lapping. I'm running an H60 direct to PSU, so cooling as at max. I am planning to move the radiator laterally forward towards the front of the case, for better cooling. I just have to notch the mobo tray first.
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post #2 of 12
Getting to 5ghz, especially with 8 cores is, well, pretty difficult.
It won't be happening with just FSB/Multi changes.
It won't be happening with less that 1.4-1.45 volts.
It probably won't be happening with an H80 either.

Instead of just jumping up the cpu speed to 5 ghz. try going a lot slower. With what you did you have no idea what the problem is that caused the failure. If you had increased speeds and voltages slowly. and when you had a failure tried to change other settings, one at a time based on what failed (ie what BSOD'd) you'd have a lot more success.
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post #3 of 12
Thread Starter 
right now I lowered the multiplier to 17 and upped the bus speed to 210, going to increase to 215 and so on till failure.
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post #4 of 12
i agree, you cant start with such a high expectation.....first off you dont have enough cooling to get an FX to 5ghz stable. and second, you dont even mention your motherboard, there are only a few that can handle that king of wattage. and 3rd,,,,

aint gonna happen on 1.32v

(and dont worry about doing a lap dance for your chip, getiing it all wriled up wont help....)jk
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post #5 of 12
Thread Starter 
im running the sabertooth r2, which is more than enough, I got a 1000 watt psu, which is more than enough. so now im just going to up the voltage and clocks slowly till I hit 5 GHz. It'll run hot like 60+, but itll run

edit* got the frequency to 220, still at 1.313Vcore. running the 7950 @ 1025, 1450 MHz
Edited by djkomrad - 4/5/14 at 8:28pm
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post #6 of 12
Quote:
Originally Posted by djkomrad View Post

got the frequency to 220, still at 1.313Vcore.
Vcore and FSB have nothing to do with each other.................
Edited by billbartuska - 4/6/14 at 4:10am
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post #7 of 12
Thread Starter 
im just bumping fsb till it tops out, then bump voltage till it loads. after multiplier bumps
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post #8 of 12
Quote:
im just bumping fsb till it tops out

Keep in mind there are fsb "holes" that vary with each cpu, mobo and memory combo. Just because +1 doesnt work does not mean +10 wont.

It adds to the challenge and sport of fsb overclocking, heh. biggrin.gif
    
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post #9 of 12
Thread Starter 
thanks for the info, going at it all night
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post #10 of 12
H60 will max out around 4.4-4.6ghz.
You dont want the core temp going over 60 other wise it gets unstable. Recommended max from AMD is 61C.
Socket temp you want to keep under 70C.

Iv overclocked a few of these chips now.
Good ones will do 5ghz on 1.48V. Bad ones max out on 4.8ghz on 1.55V

Used a few difference AIO coolers as well.
Antec 620 H50/60 1.38-1.42V
H80 good for 1.42V-1.46V
Antec 920+ & H100+ good for 1.46-1.5V

There is a little variance depending on chip leakage.
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