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Official Phenom II x2 500 Club! - Page 423

post #4221 of 4289
Quote:
Originally Posted by Shooter116 View Post
Yup.. all the way up to 1.5V at stock clocks. Briefly tried to unlock as a Tri-core but I don't know if I was doing that right with all the per-core/all cores jazz. I want a wonder chip lol
How did you try a tri-core? By enabling 3 cores only in msconfig? remember you've than got a 75% chance of getting your faulty core.

Try downloading amd-overdrive. It allows you to specifically choose which cores you want. Thats how I disabled my 3rd core but enabled my 4th.

Good luck.
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post #4222 of 4289
sorry if this has been asked alot but why exactly does amd disable 2 (usually) good cores?
post #4223 of 4289
Probably because at stock settings the chip will fail (as a quad core) before warranty was over.
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post #4224 of 4289
My 550 unlocks all 4 cores @ 1.45vcore and runs Prime95 Small FFT stable, but as soon as I run Blend it instantly freezes. Why is this?

Should I think about replacing my motherboard (Gigabyte GA-M720-US3)?

I can't get it to run stable in a 3 core mode either (with either Core 2 or Core 3), it still freezes in Prime95 Blend test after about 10 minutes. Shouldn't it report back an error instead of freezing if the CPU was at fault?
Edited by norm360 - 1/16/11 at 2:54am
post #4225 of 4289
I'm guessing ram problems. Try 'loosening' your timings and lowering the ram clock. Also adding some vRam might help.
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post #4226 of 4289
Quote:
Originally Posted by norm360 View Post
My 550 unlocks all 4 cores @ 1.45vcore and runs Prime95 Small FFT stable, but as soon as I run Blend it instantly freezes. Why is this?

Should I think about replacing my motherboard (Gigabyte GA-M720-US3)?

I can't get it to run stable in a 3 core mode either (with either Core 2 or Core 3), it still freezes in Prime95 Blend test after about 10 minutes. Shouldn't it report back an error instead of freezing if the CPU was at fault?
also check the ram voltage
look up your memory and see what its timings and voltage should be
then set them in bios
post #4227 of 4289
Just starting to really figure this chip out.

It's a 555 BE fully unlocked - I haven't ran a stability test yet but the chip shows promise.
All relevant info should be in the screenie. I've also noted it's yet to go over 29C under load at this point but H2O for cooling does help. I'll see about running a stability test and post up soon to see if it passes at these settings. If not, I'll tweak until it does.

EDIT: Got it up to 4.1 with less than 1.40v's:
http://valid.canardpc.com/show_oc.php?id=1600221

I also did some testing and can say while it browses the web and such this way, it won't run under a real load applied to it such as WPrime using all 4 cores to do the run.

Now it's time to tweak and get it stable.

Edited by Kryton - 1/16/11 at 10:10pm
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post #4228 of 4289
Quote:
Originally Posted by RolandVet View Post
I'm guessing ram problems. Try 'loosening' your timings and lowering the ram clock. Also adding some vRam might help.
Thanks for the advice. I had no success with that.

But I did however get a new motherboard (Gigabyte MA770T-UD3P), and I have been able to unlock all 4 cores on the 550 at stock volts and it's stable on Prime95 & IntelBurnTest so far.
Edited by norm360 - 1/18/11 at 10:05am
post #4229 of 4289
Quote:
Originally Posted by norm360 View Post
Thanks for the advice. I had no success with that.

But I did however get a new motherboard (Gigabyte MA770T-UD3P), and I have been able to unlock all 4 cores on the 550 at stock volts and it's stable on Prime95 & IntelBurnTest so far.
Nice Board ^^
Sounds good, I wish the best of luck and lots of fun squeezing performance out of that chip.

Sent from my HTC Wildfire
Edited by RlndVt - 1/20/11 at 6:42am
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post #4230 of 4289
No more trying to unlock for me, maybe I'll hold off on buying a new CPU and see if I can unlock it with my new board first. I'm keeping it here since it's 12 hours stable P95 blend and 9 passes of MT86+.



Edited by Shooter116 - 1/20/11 at 6:01am
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