First time black edition overclock fail...

Tazzfalcon

Tazzfalcon

Tazzfalcon

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Joined
8 Mar 2011
Posts
812
Location
London
I decided to bite the bullet last night and go for a first time stable overlook, so I'm a complete noob. I wanted to do it properly through the BIOS using the unlocked multiplier, I have psu issues so I wasn't keen on doing anything with the voltage. I set the multiplier to run at 3.4ghz, turned off cool and quiet, save reboot etc. It worked, showed in BIOS, booted to windows stable.

I wanted to be sure It would be ok though so using prime 95 I set it off on a standard mixed bag torture test with four workers. Unfortunately I had to stop after only 5 mins when the temperature in probe 2 for the CPU went above 60c, it had been idleing at 44c.

I'm using an Arctic Cooler freezer 7 fan and sink, I'm confident on the thermal paste applied aas at stock speeds idle temp is only 31c and 50c load max.

Where have I gone wrong here?

Also as an aside my rear case fan keeps setting off the min rpm alarm in probe, only spinning at 580rpm as opposed to the front push @ 1800+ what's that about? Any way to manually boost it up?

Thanks for your help :)
 
The Freezer 7 is good, but it will struggle with 125W CPUs being overclocked. What's your vcore and CPU-NB voltages? If they're on auto, the board may be giving them too much juice. I'd change your PSU, and if you're serious on overclocking, get a better cooler if you are still struggling with temps. The 955BE can probably manage 3.6ghz on average, some will go to 3.8 or even 4 if it's the best example. I would aim for 3.6. However, overclocking isn't just changing the multiplier and running prime. You need to lower and tweak your voltages first until it's totally stable on prime blend for 8hrs and passes 20 runs of linx simultaneously on max (this is my testing procedure). These chips don't like going beyond 60 deg. Start small. Quite an interesting thing to try is how low you can get your vcore at stock, whilst maintaining stability. Then just up the multiplier bit by bit, votlage where needed (don't forget CPU-NB and RAM voltage with 8gb in there).

EDIT: For the fan problem, check the fan control in the BIOS and turn it off for that fan if it's on.
 
Thanks for the advice.

I've got an Antec 650W truepower in the rig now and a Titan Fenrir Cooler on order. I've also got a Fractal Design Define R3 and a couple extra fans winging their way t'ward me.

Got Sunday blocked in for a big system rebuild and will then try pushing the 955 up again, paying attention to voltages this time! Aiming for 3.6ghz or even 3.8 with the new cooler and set up!
 
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