BSOD, Hard Locks, Kernal Power Event ID 41

How old is that Cooler Master PSU? One year? Two? Any more than that and (in my experience) I'd be looking hard at it. Whenever I have had Kernel Power Event 41's, it's been either a PSU issue (solved by replacement) or wall socket power issues.

Ok, I perhaps have discovered the solution.

The AMD Phenom™ II X4 955 Black Edition Deneb Quad Core seems to picky with ram timing.
I should have picked up on this sooner, but I have been out of the tech game since 08 when I last worked in the field, I guess the rust is showing.

I was reading that the Deneb cores are picky with their ram timings.

Here is brief history of the diag process.

I had some ADATA 2000 that I originally got with the board and chip, but I was always having intermittent issues with this system. I moved to the corsair vengeance 1600 as I could get the ram in 2x4gb.
Was more stable, but not totally with the 1600, but started to get worse. Memtest86+ showed I had a bad pair, sent them back, expected this to correct this issue... so back to more searching. I thought perhaps that it was a corrupt install of Win7, reinstalled. Nope...
Checked the HDD's, and rechecked them repeatedly though out this process...still good.
Eliminated the sound card and vid from the equation and still Kernal Power Errors and hard locks.
Tried Zorin OS, it was more stable but still ran into crashes.
Crashes were all Kernal Power and some pointed to Power Supply. Having a background in electronics and tech, I watched the voltages under load, idle etc, nothing that showed a deviation outside the norm tolerances. Also I only need about 550w for this system as configured, and the PS is 850W...so I have the head room to not be pushing the PS as well.

I then posted here, thinking maybe it was a driver or something messing up with the ole MS Frankencoding in Win7 that was perhaps conflicting with hardware somewhere.

Power supply was suggested, and I even started to follow through with Cooler Master but I had a nagging suspicion that I was still going the wrong way with this...as well as I have never had a Cooler Master supply die, and have only every seen a handful of dead high end power supplies over the years.
Yes, I have seen the cheap ones blow up right out of the plastic, and users who have had whole systems wiped out by a cheap supply. That is why I always pushed people to spend on the PS unless they want to replace the whole system down the road due to PS failure.
I digress.

Right now I have set the 1600 to run @ 1333 with 10 10 10 26 timing. It has been stable through all the characteristic tasks that have caused it to crash in the past...streaming video, gaming, surfing the net.
It has been 48 hours now, with no crashes and I will be starting to research and experiment with 1600 timings.
I checked the Motherboard ram compatibility list, and the ram is compatible (so was the AData stuff too)
so it is just the chip not liking the ram timing.

The reason I am going on this long diatribe is that I have seen other users in other forums posting with the exact same issue regarding AMD chips with Deneb cores.
This may not always be the case for all Deneb, but at least it is a diag step to try early on to save a lot of grey hairs.

Cheers!

I'm going to run it through the paces for a couple days and then mark as solved if there are no further hiccups.

As one who's had mobos, optical drives, keyboards and mice destroyed by power supplies dying, you do see my concern. RAM timing never entered my mind, as I've never altered mine from the defaults on any of my rigs. If fixing it so that your machine stays stable when it would otherwise fail, it does look like you've found your culprit. Fingers crossed that's all! Nice bit of detective work.