Out of the blue - crashes

CrimguyCrimguy Cave Creek, AZ
edited October 2004 in Hardware
I've got a computer that has been running reliably for 8 months. Suddonly, yesterday it did a spontaneous reboot, and won't stop doing it. To make matters worse, when it reboots it requires me to hold the Insert key to get it to post properly. At that time I have to go into the bios and reset the cpu settings to match the cpu, save and reboot again.

Other symptoms:
-It gave me a BSOD while running AVG antivirus (page fault? I don't remember)

-It's not Windows related because it froze sometime last night, and I had booted into linux. It ran without a hitch for a couple hours before I went to sleep-I decided to keep it on overnight to see what would happen. Woke up to a blank screen.

-CPU/case temps are normal when it happens (45 degrees cpu/33 degrees case).

-All fans are running, including northbridge, CPU and vid card.

-I haven't cleared the CMOS yet. I have a feeling that this could be a bit more serious.

-This mobo replaced a Soyo Dragon+ that had bad capacitors and slightly similar symptoms (spontaneous reboots). The Abit caps are all in good shape.

Specs:
-Abit NF7-S 2.0
-2x256mb ram - generic stuff, and they don't match (I know, I know), one is 2100 other is 2700.
-AthlonXP 1600
-480W power supply - not generic
-GeForce 4400
-80GB maxtor
-20GB seagate
-Samsung DVD/CDRW
-Pioneer DVD-R

My first guess is the RAM going bad somehow. I'm at a disadvantage because my case (Antec P160) does not have a speaker, so I can't hear the beep codes.

Any help is appreciated. I use this computer for work as well as play, so I'm a bit pissed. Go figure, I just ordered an Athlon XP3200 on Saturday.

Comments

  • QCHQCH Ancient Guru Chicago Area - USA Icrontian
    edited October 2004
    Make sure the system is blown out... dust can kill. Also... to quote Prime... "Memtest", chesk the memory out and make sure it's not bad. after that, try re-seating all the components (video card, memory, sound card, hard drive cables...). Also try hard drive testing...

    Seems to be hard ware based since both Linux and Windows are effected.
  • shwaipshwaip bluffin' with my muffin Icrontian
    edited October 2004
    It does sound like memory...if it fails memtest with both sticks, try each individually to see which you would need to replace.
  • CrimguyCrimguy Cave Creek, AZ
    edited October 2004
    I'll give memtest86 a whirl - forgot that program exists!

    Case was pretty clean, so I don't think it's dust, but I'll take your suggestion and give it a shot.

    I'll get back to you, thx for the suggestions.
  • CrimguyCrimguy Cave Creek, AZ
    edited October 2004
    Update:

    Downloaded memtest (thx!). Encountered 8 errors in test 1, so I decided to reboot. It froze.

    So I cleared the CMMOS, and now it's running smooth as silk! somehow some of the timings must have changed, as if by magic! Thanks for the suggestions guys.
  • leishi85leishi85 Grand Rapids, MI Icrontian
    edited October 2004
    when u clear the CMOS, it earse all your settings in BIOS, and reset to the default, fail safe settings.
  • CrimguyCrimguy Cave Creek, AZ
    edited October 2004
    leishi - That's why i cleared it. :thumbsup: I was wondering if/how my bios settings were changed before I cleared the cmmos. I haven't gone into the bios in months before yesterday.

    UPDATE: CMMOS wasn't the problem. Still having same issues. memtest showed no errors. I changed the default latency for the ram from 2 to 2.5 - maybe 2 was a bit too aggressive, and I doubt that crap ram I have is CAS2 anyway (I've never touched the setting in the past).

    We'll see. Thanks again for the thoughts.
  • JimboraeJimborae Newbury, Berks, UK New
    edited October 2004
    If it keeps doing it maybe check and see what your voltage rails are like. Could be the psu on its way out, just a thought
  • edited October 2004
    You can also try raising memory voltage to 2.8 or 2.9v and see if that stabilizes your machine. The extra voltage shouldn't hurt the memory unless a stick is already about to fail.
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