Athlon II X4 638 Overclock

[redless]

I have a few spare parts from old pcs from here and there, I manage to build this machine

Athlon II X4 638 2.7ghz FM1
Biostar A55MLC2 Ver. 7.x - horrible for overclock
4 Gb Gskill 1600mhz
PSU C3 tech 600w with PFC build by CWT (local brand)
Saphire 7750

My nephew is going to use this machine mainly for games like bf3 and racing games or whatever and I was messing with the CPU multiplier and was able to overclock it to 3.5ghz 1.35v, did stress test with amd overdrive, all good with 44 max temp underload and prime95 did the first test for cpu only and failed after 1 hour, something about HW fatal error.

I did nothing more, anyone had experience with this CPU? I am not able to change any parts since but is only for a little kid and in my country everything is twice as much than in USA.

Thanks in advance

 

[clutchc]

Ifc there is a turbo mode option in BIOS, disable it. That may be the hardware failure error you encountered. (unstable OC) But to be honest, taking the processor from 2.7 GHz to 3.5 GHz is a pretty bold move. Especially on that poor board for OC'ing. I am not surprised that a low end board like that would fail an OC. 3+1 phase power, no heat sink on the VRMs, and lesser quality components. Not at all designed for even rudimentary OC'ing.

 

[Michael Camp]

BF3 WITH THAT ... hahaah hope he's a good nephew... with benifits.... hahaahahah

... hm.

 

[redless]

Ifc there is a turbo mode option in BIOS, disable it. That may be the hardware failure error you encountered. (unstable OC) But to be honest, taking the processor from 2.7 GHz to 3.5 GHz is a pretty bold move. Especially on that poor board for OC'ing. I am not surprised that a low end board like that would fail an OC. 3+1 phase power, no heat sink on the VRMs, and lesser quality components. Not at all designed for even rudimentary OC'ing.

I understand what you are saying, I was just messing with the system and I do not know why, but I was able to overclock to 4.0ghz stable with max temp of 48ºc and 1.36v

I did a complet OCCT for more than 5 hours, did prime95 blend 4 hours and all good... no errors, no bsod, I am little confused, why is this pc running? It shouldn't Oc that high, not even my FX6300 can.

I am happy but a worried that this might be fluke or something