I have a HX520, just over a year 1/2 old and I suspect it may be causing me problems. Just wondering if the best cause of action would be to buy a new PSU to test and if it turns out the old one is faulty to RMA it?
The problem I have happens intermittently. The computer will occasionally reset itself, or give a 0x00000124 BSOD. Sometimes the BSOD is reset before the memory dump has time to complete itself. The resets don't always result in a boot and sometimes the PC will just sit there with fans spinning but fail to post. The same thing sometimes happens if the PC has been off for a while.
The problem seems worst after a cold boot and starting up can be problematic. Crashing after a cold start sometimes happens frequently. It can take 3 or 4 attempts to get everything up and running, sometimes making it into Windows, sometimes not. Once the PC is up and running it can usually keep going for hours. It's usually completely stable at this point and I can game or benchmark for hours without a problem. If crashes happen after the PC has been on a while it's usually during less intensive tasks or while the PC is idle.
The problem is certainly intermittent. It's been happening on and off since last summer. Sometimes it won't happen for weeks and then I'll get several crashes in a day or two. This happens in both my Windows XP and Vista installations.
So far have reseated most components (and given things a bit of a dust out with compressed air), changed RAM (the old RAM has been running problem-free in a friend's PC since). Additionally the graphics card and soundcard have both been upgraded since the problems started with no change in results.
Along with the PSU, the prime suspects are now the motherboard and CPU. Also considering the possibility of a hard drive problem. Prior to the start of these problems the PC had run with 100% stability, problem free, through several upgrades and including the Vista installation.