Signs of an overheating soutbridge?

PieIsAwesome

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Feb 11, 2007
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This is for an MSI K8N Neo-4 platinum SLI.

A bit of history on the board...the southbridge fan used to make a grinding noise several months ago (6+?), so I removed it and put a little oil in the motor. It seems to have worked fine since then...but I expected to replace it with a new fan/heatsink soon so I didn't bother to clean off the old thermal wax or anything and just put the old one back on. I never got around to replacing it though, because I didn't seem to have any problems.

Well, anyways, more recently I've been having issues with the mouse freezing at random times. One time while playing a game I got the device unplugged/plugged in windows sound, though the mouse didn't freeze. I switched USB ports and it seems to have helped. I believed this has happened before, but I though it was just the mouse because I was using a wireless one at the time.

Next I've had the computer just randomly restart...as if I hit the reset button. This has happened about 3 times in the past month. No blue screen or anything, just instant restart. The first time it happened I was just doing normal stuff in windows. The next time it was after I exited a game and started doing normal stuff. The last time (2 days ago) was while I was chatting with a friend in trillian and had a bunch of Firefox windows open.

CPU temp is fine, RAM is running lower than rated timings, videocard lets me know when it gets hot by getting REALLY loud.

I'm not sure how to get a temperature reading, if at all, for the southbridge on this board. All the temps in speed fan are from 32-40 C idle. (one says -99 for some reason...)
 

PieIsAwesome

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Feb 11, 2007
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Global Performance

Temp/Voltage

I was just playing Anno 1602 and while trying to exit to the desktop the comp restarted again. I noticed that the HDD shuts off and when the system starts booting up again the HDD does too, not sure if it means anything.
 

robisbell

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Oct 27, 2007
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okay, Global performance is telling me the HDD is not doing so well, I'd suggest you run the manufacturer diagnostic on it, processor and video card are doing really good.

okay, temp and voltages. your PSU fan is running extremely high speed. your 3.3 is a bit low, and your 12v is a lil high. I'm concerned since the CPU fan is not showing up at all.

I'd have to say at this moment you may be looking at a imminent motherboard failure. based on the info provided, and problems that have been occuring.

what is Anno 1602??
 

PieIsAwesome

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Feb 11, 2007
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Ill try testing the HDD then.

Imminent motherboard failure? Is there a possibility of it being the PSU? I'm in the process of gathering parts for an upgrade, which would be new CPU, MOBO, and RAM, and wanted re-use the PSU. I wanted to use this motherboard for an extra comp, but a new 939 board shouldn't be a problem. I'm more concerned about the PSU.

1602 is a neat little game. Text
 

robisbell

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Oct 27, 2007
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well, the voltages are not off enough to indicate the psu, and the issues I am seeing indicate a motherboard failure.
 

PieIsAwesome

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Feb 11, 2007
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Hah, I'm running the HDD diagnostic right now and the mouse completely died after a while (keyboard works, as I am typing this message). LED under the mouse is off, no clicking.

Coincidence that I'm running the HDD diagnostic? The mouse problem has never gotten this and and obvious. I'm gonna see what happens after the diagnostic is over.
 

robisbell

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Oct 27, 2007
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I say that's a definite indicator that the motherboard is failing. let me know what the HDD shows.
 

PieIsAwesome

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Feb 11, 2007
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Ran all the SeaTools tests (Short drive self test, long drive self test, short generic, long generic) and the drive passed them all.
Guess I'll end up having to RMA the board after upgrading.