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AMD Phenom x2 555 Overclocking

2K views 11 replies 8 participants last post by  psi_guy 
#1 ·
Hi everyone my configuration is :

Gigabyte GA-MA78LMT-US2H
http://www.gigabyte.com/products/product-page.aspx?pid=3375#ov

AMD Phenom x2 555
http://www.pcstats.com/articleview.cfm?articleID=2490

2 GB RAM DDR3 1333 Super Talent

GV-R567OC-1GI
http://www.gigabyte.com/products/product-page.aspx?pid=3312#ov

Cooler Master Elite 335
http://www.coolermaster.com/product.php?product_id=5239

Cooler Master eXtreme Power Plus 400W
http://www.coolermaster.com/product.php?product_id=3765

ASUS Triton 88 (I got it on a bargon for 45$ )
cool.gif

http://uk.asus.com/product.aspx?P_ID=ngnrJAuyQwpRwPef

I am currently running my PC at 4 Ghz and i was wondering if i could go higher
wink.gif
My Voltage is 1.472 ( is that high? ) I also managed to unlock my other 2 cores
applaud.gif
No problem so far i have tested the PC on Prime95 4 hours and the Temp went from 24 C to 41 C . I didnt have the guts to got beyond 4 Ghz and i dont know if its safe ... I am not running the PC normaly 7/24h more like : every day for a max of 6-7h. I am open to new and better BIOS settings.
 
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#4 ·
OH MY LAWD IT'S GOING TO BLOW
Gigabyte low-end 4+1 + unlocked x2 (125W proc unlocked) + overclock + high voltage = INSTANT DEATH SENTENCE
LOCK THOSE CORES NOW AND RETURN TO STOCK
(Read links in sig for more info - Why 4+1 = usually bad, AMD motherboard VRM info)

Low-end 3-transitor Gigabyte 4+1 VRMs are especially known to blow up, it's almost as bad as MSI even
You will need a new motherboard to safely unlock/overclock. Sorry to wreck your day, but VRM failures have been appearing every day for the past 9 days, on this site only. Multiple failures on most days. Many have pictures. I don't want you to be next.
 
#5 ·
#6 ·
the RAM is right, lock those cores back up

if you don't believe him, feel the temp of your mosfets. i can guarantee they will be too hot to hold your finger there for more than a few seconds

although, i don't advise doing this with your pc on

that's the sort of thing i do, and i'm stupid, so don't do that
 
#7 ·
Yea the overclock on this motherboard is absurd but can i return to stock speeds and leave the unlocked cores ... ? Sorry about the double thread didnt do it on purpose.
I locked the 2x cores and the Power consumption drasticly dropped :
 
#8 ·
You can do a overclock with the chip as a dual core...just make sure you do not past 1.45v cpu voltage or the mosfets and VRM temps shoot up, i know this cause i have a temp probe on mine and anything above 1.45v shoots up the temps.

I have been looking at the recent failures of the boards here and the average voltage that causes them to fail is 1.45-8. But honestly i don't know if those people got bad boards because i had my crap board @ 1.6v trying to get to 4.7ghz for the entire day and no smoke so better be safe than sorry
 
#9 ·
Quote:


Originally Posted by xd_1771
View Post

OH MY LAWD IT'S GOING TO BLOW
Gigabyte low-end 4+1 + unlocked x2 (125W proc unlocked) + overclock + high voltage = INSTANT DEATH SENTENCE
LOCK THOSE CORES NOW AND RETURN TO STOCK
(Read links in sig for more info - Why 4+1 = usually bad, AMD motherboard VRM info)

Low-end 3-transitor Gigabyte 4+1 VRMs are especially known to blow up, it's almost as bad as MSI even
You will need a new motherboard to safely unlock/overclock. Sorry to wreck your day, but VRM failures have been appearing every day for the past 9 days, on this site only. Multiple failures on most days. Many have pictures. I don't want you to be next.

According to posted specs, my Asus board has 8+1 phase power design. I have no idea what that means, but I also run an unlocked X2 at over 4GHz with about 1.5V 24/7. Should I be concerned? Temps appear to be in the mid 50s though I haven't checked the VRMs to see how they're hangin'.
 
#10 ·
phrossbyte with the quality heatsinked 8+1 VRM you should be far from concerned. VRMs should ideally be about as hot as CPU as load, cooler would be better though.
 
#12 ·
i've been messing around with the x2 555 be (no unlocked cores) in my lanbox as well. so far, i've been able to run it up to 4.0ghz on stock voltage (auto 1.4v) while keeping temps under 50*c on the stock cooler. i ran prime95 blend test for 6 hours and had no errors or warnings. i'm sure i could get better temps with a better cpu cooler, but i don't see the need for it with temps going no higher than 50*c. i'm very impressed with this cpu.
 
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