Re: AN7 Acting Strangely

I'm an idiot! While I had swapped hardware and power supplies etc. several times, the one thing I had apparently not done was to clear the CMOS between switching RAM from the 2 new 1GB sticks I had purchased (which by the way ran Memtest 86+ without issue). I had set the machine aside for a few months so I wouldn't throw it out a window- when I reconnected it with 2 512 MB sticks it ran (and is still running) fine although the floppy drive had in fact died. The only thing worse than hardware is software. Thanks for all your help and suggestions.

Re: AN7 Acting Strangely

I tend to doubt that the issue is power supply since I have swapped out a Silenx 400W for a Seasonic S12II 550W with negligible improvement. The case runs consistently cool as it has both front and rear fans. I keep coming back to the motherboard because I have tried 2 known good PSUs, CPUs, and memory kits. Do you think that the issues could be due to a corrupt bios or are caps more likely?

Thanks for all the help!

Re: AN7 Acting Strangely

Hi Guys,

Sorry I haven't replied earlier. I tried the reseating of cables, the RAM had already been swapped at least 4 times, and there was no indication of any arcing in the power connections. Other interesting behaviours have now manifested- the floppy drive is now unable to read known good floppies (disk is not formatted then can't format it) and the CPU fan header no longer works, byt CPU fan works fine in any other header. The chipset fan has now been reconnected (it was noisy and whether or not it was on, the temps only varied by a...

Re: AN7 Acting Strangely

Thanks for the replies. The chipset fan failed almost a year back but the temperature readings for the chipset in the bios and using MBM are 36-40C. Memtest 86+ runs for hours without error and none of the voltages seem to fluctuate significantly. I used a Silenx 400 watt PSU until I started having issues then I switched to a Seasonic S12II 550 which improved things but there are still issues. I don't OC and I have run this PC with the CPU undervolted (1.5V instead of 1.65V) for almost two years without issue. I increased the CPU voltage to the normal level...

One of my two Abit AN7 XP3200 Setups is acting strangely. Voltages/temperatures seem to be stable but I get blue screens and I'm no longer able to run Prime95. I have swapped out PSUs/CPUs/RAM to no avail. I haven't done a thorough examination of the board yet but I'm wondering if it could be the caps. I haven't seen many reports of bad caps on AN7s- what do you think?