Undocumented 2-tone Siren + NF7-S: Old boards only? Nope.
I have a brand new NF7-S 2.0 sitting here. Came from Newegg.
Has a new NB heatsink type on it (It's uncolored aluminum, as opposed to the NF7-S old greyish one on my other 3.. The one that's been there since the 1.2's release). So I know this is REALLY new.
It's got a JIUCB/DUT3C (Ugh) 1700 sitting in it.. And the thing gets past post, then sirens out and crashes at a 133 bus.
CMOS has been cleare repeatedly, I worked the components down to board and chip alone.
Thought you could get away from this glitch by buying a new NF7-S? Seems not.
I'm pissed. :mad2:
Atleast it's not my PC.
Has a new NB heatsink type on it (It's uncolored aluminum, as opposed to the NF7-S old greyish one on my other 3.. The one that's been there since the 1.2's release). So I know this is REALLY new.
It's got a JIUCB/DUT3C (Ugh) 1700 sitting in it.. And the thing gets past post, then sirens out and crashes at a 133 bus.
CMOS has been cleare repeatedly, I worked the components down to board and chip alone.
Thought you could get away from this glitch by buying a new NF7-S? Seems not.
I'm pissed. :mad2:
Atleast it's not my PC.
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Solved it by turning the case unto its side.
Checked heatsink (SLK-800) to make sure it was tight and fitted correctly, it was. But I can't run my computer standing up, it has to be on its side.
If it's standing, Post, Siren, Crash.
How the hell did you find that out?
I'll tip it and see what happens.
//EDIT:
No go. I'm so pissed that even a P4 looks good right now.
Computer was standing, Post Siren Crash
Set CPU to lowest speeds. Post Siren Crash
Checked heatsink fit, wiped off the CPU and put a fresh film of AS5...
Post, Siren, Crash.
"WTF...turn this be-otch on its side and see what happens. Maybe the heatsink just won't sit right."
Turn it on its side, it works perfectly. Why, who knows.
The side thing once worked for me, it was because of grounding. After I knew that was it, I just took out some of the plastic feet and let it sit at a small tilt so the metal was touching.
Never figured out why that was happening though..
As for how I figured it out... a friend suggested it ::shrug::
No Thrax...anything but that
Grounding...maybe. It does have plastic feet, but it was sitting on carpet the whole time. I don't think that was the issue. Post Siren Crash isn't 100% of the time. The computer actually ran for a morning without problem before the machine stopped and I got the siren.
I had trouble booting after that, so now I'm scared to stand it back up again.
Let's not say anything we cannot take back...
If problem still exists, start swapping things out.. PSU, CPU, whatever you feel like.
I've never had this problem, so I'm kind of dry on specific suggestions.
But I don't feel like ****ing with it tonight because I'm pissed off and I hate the thing.
Also, if the HSF doesn't spin fast enough at bootup, you get the siren as well.
http://www.abit-usa.com/downloads/bios/bios_revision.php?categories=1&model=124
I would flash BIOS if I could even get a little bit past POST.
My very different boards also two-tone on OH, and turning off the CPU FAN monitor in BIOS of one fixed that mobo's problem. Other CPU\HS\mobo combo HAS a SENSE lead on fan. But both two-tone OH, and some boxes will alarm off CMOS cell for ahort time, which eats CMOS cell juice a lot.
I begin to wonder, though if there is a BIOS flash to fix this kind of thing for this rev of your boards, as there have been many two-tone fixes for soem boards that were due to a video card non-detect and bad grounding due to not enough brass studs to bond board to case and then PSU chassis being used caused the environmental chip to malfunction. Some boards share environmental chip ground plane with other chips, some have an almost isolated environmental chip and then the stud and screw ground point nearest environmental chip is best set up as grounded-- no plastic foot there, or the environmental chip may false report all kinds of things and do a shutdown. I have seen boards where if certain ground mount points are NOT used, board massively malfs.
John.
Removed everything but the CPU.
Swapped memory.
Cleared CMOS.
Hotflashed its bios to v20.
Swapped PSU.
Hooked up the CPUFAN RPM sensor.
There is not environmental chip.
The BIOS doesn't load, John. It posts, then shuts off.
There is no intrusion detection on the NF7-S.
There are no key mount points on the NF7-S.
CMOS Cell has been replaced.
Heatsink has been remounted.
Fresh AS5 has been applied.
Swapped video cards.
Swapped power rails being used.
Disconnected all but crucial power draws to both PSUs tested.
Anything I missed in troubleshooting?
Could you swap BIOS chips and flash it using another of your NF7-S boards?
Guess I missed that
I recognize this is a big shot in the dark/last ditch suggestion.
Works fine. I've rebooted it, turned it on and off a billion times.
PFM rocks.