Possible PSU Failing?

[Undead46]

Well, I got an XFX P1-650X-CAG9 650W Modular PSU, and I'm trying to OC to around 4.7GHz, but whenever I stress my CPU, I get a hard crash with no BSOD.

Does that mean my CPU is failing?

I have 1.375Vcore

--------
System:
CPU: i7-2600K
MoBo: ASUS P8P67 WS Revolution (B3)
RAM: G.SKILL 4GB (2x2GB) DDR3 1600MHz 6-8-6-24-1N
Case: Cooler Master HAF X Full Tower
PSU: XFX P1-650X-CAG9 650W Modular
SSD: OCZ Vertex 2 120GB SSD
HDD1: WD Caviar Blue 7200RPM 500GB
HDD2: WD Caviar Blue 7200RPM 250GB
OS: Win 7 Prof - 64bit
Opt-Drive: ASUS 24x DVD-RW

 

[RamonGTP]

Highly doubt it. You're much more likely to be hitting the limit of the CPU

 

[Undead46]

Well this is weird.

Back running at 4.7GHz, 1.375Vcore (1.38-1.39) and I'm not hard crashing anymore, or BSOD'ing.

Weird stuff, but I guess I'm all good to go? LoL

 

[DrDoU]

Never mind

 

[Undead46]

Well I was still getting hard crashes even at stock settings for everything, so I replaced the PSU with a new HX850, and I'm still having same issue.
Thoughts on what it could be?

 

[Tsumi]

RAM or motherboard are your most likely culprits. If a PSU is failing, it doesn't usually result in a crash, it usually results in a complete and total system shutdown.

 

[RamonGTP]

If a PSU is failing, it doesn't usually result in a crash, it usually results in a complete and total system shutdown.

I wouldn't say that. I've seen failing PSU's cause system hangs, bsods and random restarts countless times.

 

[Undead46]

I'm going to try and loosen the RAM timings from stock to see if the RAM is a bad set.
But it does pass Memtest86, so I don't know about that.

If that doesn't work, I'll probably contact ASUS and see if they have any advise or information for me.

 

[drescherjm]

But it does pass Memtest86, so I don't know about that.

How long did you run memtest86? I have seen systems that took 72 hours to exhibit the first memory error.

 

[jack57]

I would re-seat the memory cards if you have not done so and make sure it is firmly in the socket.

 

[Undead46]

How long did you run memtest86? I have seen systems that took 72 hours to exhibit the first memory error.

Just 2 passes.

I would re-seat the memory cards if you have not done so and make sure it is firmly in the socket.

If they weren't seated correctly, I would assume it wouldn't even boot or get past 1% of a Memtest86..

 

[jack57]

I had memory chips in the past that will intermittently failed with a blue screen memory error or a reboot every few days until I reseated the memory chips. It is not always black and white when dealing with intermittent problems.

 

[Undead46]

Well I can understand that, but I'm not experiencing any BSOD.
Just a hard crash (shutdown / power-off) and reboots.

 

[hossdaddy]

i think its more the hard ceiling of the cpu.

 

[Mike_Dee]

Well this is weird.

Back running at 4.7GHz, 1.375Vcore (1.38-1.39) and I'm not hard crashing anymore, or BSOD'ing.

Weird stuff, but I guess I'm all good to go? LoL

Did you run any stress benchmarks, or tests?

 

[jack57]

Well I can understand that, but I'm not experiencing any BSOD.
Just a hard crash (shutdown / power-off) and reboots.

I now understand now that your hard crash being shutdown / power off or a reboot. I agree that there is a hardware issue and you already rule out the power supply and you are still having issues. I would still re seat everything and even moving the memory sticks to difference slots if possible. Re-seat all the external connections like USB for example. The CPU is not overheating or the BIOS setting for thermal shutdown is set to a low value. We have not rule out the CPU at this time.

I just had a problem like yours with my other computer setup and it was caused by having both the USB and the ESATA cables connected to the same external hard drive dock at the same time which caused a conflict and overloaded the 5v line.

 

[Undead46]

Looks like you were right!
Ended up re-seating my RAM and I haven't had a crash since!
I guess I can blame my MoBo really, since it doesn't have a lock-switch on both sides of the RAM, only one side.. Fail design >.>

But I'm sitting here stable at 4.5GHz, 1.335Vcore, 1.7PLL.
And of course I stressed my CPU. Prime95, Intel Burn, LinX, the whole shabang!
Looking at a 63C High.

 

[jack57]

Great that you solve this issue for the time being. I am just surprised that you have locks on just one side of the memory chips since it appears that you are using a Asus motherboard. In my early days I used a PcCHIPS motherboard and I had to use my full weight just below the point of breaking the motherboard in order for the computer just to see the memory chips. It was a horrible make. The best motherboard and the most stable was my ABIT boards and I am sorry that they are not around anymore. I currently have a new built three months ago using a ASUS motherboard in a customized Gigabyte case that is heavily soundproofed.