Hey well I hope the topic about the USB 2.0 freezing issue isn't dead yet. I'm glad i've finally found others w/ the same problem. I have been working since mid-september trying to resolve the issue. System is very stable under usb 1.1. Here's a brief summary of what I've done:
- tried windows xp pro sp2, MCE 2005, & win2000
- tried all latest windows updates, bios (using magicflash & european sites), & every forceware driver I could find
- tried w/ & w/out SW IDE driver
- replaced every piece of hardware (some more than once), except PSU & CPU (see specs below)
- have used 2 9NPA+ultra boards & now am using the 9NPA+SLI (w/ same problem)
- tried all kinds of bios settings
- tried about 4 USB 2.0 wireless adapters (all w/ fresh installations of XP)
- tried removing all but the necessary hardware (vid card, HDD, etc)
- tried using hardwire ethernet instead of 2.0 wireless adapter....SYSTEM MUCH MORE STABLE, BUT STILL FREEZES or gives a machine check error after a couple days at random...but much less often
- tried failsafe & optimized bios, including changing lots of voltages including chipset, RAM, CPU, whatever
- underclocked everything
- tried RAM in single & dual channel; 1 dimm and 2 dimms, & 2 brands
- no problems under prime95 (both cores) or memtest86
- I do not use any USB hubs, but have not tried a PCI USB 2.0 card, which still wouldn't suit me since I need the 3 internal headers
- not a cpu/chipset temperature issue
So again, as long as I'm not using a 2.0 wireless adapter, freezing is much less frequent. However, I found it does freeze even when using my external 2.0 hard drive (although VERY RARELY even on huge transfers).
I haven't yet been able to get epox to admit to the problem, even after a few yelling session w/ 'ol Mike at tech support. And of course epox is not on AMD's supported list, so no help there. Epox has mentioned that there are reported problems w/ the Athlon X2, NF4 ultra combination. Sounds like a crock to me. Before reading you all's posts, I was considering trying another PSU just in case, but I'd say I'm 99.9% sure this is an unresolved Epox issue. Or has it been resolved??? I would really, really appreciate any help. I've posted on boards everywhere & called all my hardware manufacturers w/ no luck & have spent too much time & effort on this. Thanks in advance
-curran
9NPA+SLI
X2 3800+
geforce 6600 256MB
Corsair valueselect (2x512MB) PC 3200 (have tried Geil valueRAM, also)