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GeneralRe: Hey Roger! Pin
Michael Martin17-May-03 20:03
professionalMichael Martin17-May-03 20:03 
GeneralRe: Hey Roger! Pin
J. Dunlap17-May-03 20:07
J. Dunlap17-May-03 20:07 
GeneralRe: Hey Roger! Pin
Michael Martin17-May-03 20:22
professionalMichael Martin17-May-03 20:22 
GeneralRe: Hey Roger! Pin
Roger Wright17-May-03 22:08
professionalRoger Wright17-May-03 22:08 
GeneralRe: Hey Roger! Pin
J. Dunlap17-May-03 22:16
J. Dunlap17-May-03 22:16 
GeneralRe: Hey Roger! Pin
Roger Wright17-May-03 22:06
professionalRoger Wright17-May-03 22:06 
GeneralRe: Hey Roger! Pin
Michael Martin18-May-03 2:06
professionalMichael Martin18-May-03 2:06 
GeneralRe: Hey Roger! Pin
Roger Wright18-May-03 5:55
professionalRoger Wright18-May-03 5:55 
As a start, here's the manual[^] for that MS-6199VA MB. The site also has drivers and BIOS updates for their boards.

One thing that stands out is the lack of a power supply fan with this MB installed. Try unplugging the MB (but leaving everything else connected) and turning on power. If the fan in the supply runs you have an excessive load with the MB connected, or something related to the MB is causing a short to ground. It sounds as if the supply is starting, then shutting down as it should to prevent burning up. Check the MB mounting carefully for any possible contact with the chassis, and recheck the cables. If you don't find anything, there could be a short on the MB itself and there's little you can do to fix that.

Measuring supply voltages is not easy; they don't provide test points on circuit cards anymore. It's best to measure at the load, in this case the motherboard, and getting on the supply leads is difficult. I've had good luck sliding a straightened paper clip into the wire-entry side of the plastic connector as a measurement point, but you have to be extremely careful to keep it away from anything conductive (case, circuit board traces, other connectors, etc.) while the power is on.

On your multimeter, the black wire is the negative lead; connect it to a good ground (a paper clip again comes in handy). If the frame of the chassis is coated, rather than shiny bare metal, connect it to a screw that pierces the frame. If you have a DMM you won't need to move the ground connection, but if you have an analog-type meter, you'll have to swap leads for negative voltages - the red test lead must always be connected to the more positive signal to prevent damage to the meter. Set the meter for VDC measurement - don't use any other setting while power is on! The range, if selectable, should be 20VDC. Use the red lead as the test probe.

The wires on the power connector at the MB are color-coded. Red is +5V, yellow is +12V, orange is +3.3V, blue is -12V, white is -5V, and black is ground. There are others, but these are the main ones. AT-style power supplies are different, and there's a secondary version of the ATX-type that uses an additional second 6-pin connector, but this is the basic ATX scheme.

These nominal voltages should not vary by more than about 5% max when power is on. If they range higher, there is a problem with the supply. Lower indicates a bad supply, an excessive load, or a wrong connection. Again, though, the lack of a supply fan running is a screaming indicator of a dead short to ground, or a reversed connector. I wouldn't bother checking any voltages until you resolve that problem.

"Please don't put cigarette butts in the urinal. It makes them soggy and hard to light" - Sign in a Bullhead City, AZ Restroom
GeneralRe: Hey Roger! Pin
Michael Martin18-May-03 14:46
professionalMichael Martin18-May-03 14:46 
GeneralRe: Hey Roger! Pin
Roger Wright18-May-03 15:02
professionalRoger Wright18-May-03 15:02 
GeneralRe: Hey Roger! Pin
Michael Martin19-May-03 4:08
professionalMichael Martin19-May-03 4:08 
GeneralRe: Hey Roger! Pin
Roger Wright19-May-03 4:50
professionalRoger Wright19-May-03 4:50 
GeneralRe: Hey Roger! Pin
Michael Martin19-May-03 5:09
professionalMichael Martin19-May-03 5:09 
GeneralRe: Hey Roger! Pin
Roger Wright19-May-03 5:40
professionalRoger Wright19-May-03 5:40 
Generaltaskswitches, taskboxes Pin
mkristof16-May-03 11:33
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GeneralExternal Firewire Hard Drive Pin
Mark Sanders16-May-03 11:30
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GeneralRe: External Firewire Hard Drive Pin
Michael Martin17-May-03 17:20
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GeneralRe: External Firewire Hard Drive Pin
The Limey21-May-03 23:01
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GeneralRe: External Firewire Hard Drive Pin
#realJSOP26-Jun-03 6:27
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GeneralWindows Installer Pin
John M. Drescher16-May-03 7:15
John M. Drescher16-May-03 7:15 
GeneralDetecting XP's Simple File Sharing Pin
mike_corrigan15-May-03 9:02
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GeneralRe: Detecting XP's Simple File Sharing Pin
Brian Delahunty15-May-03 9:12
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GeneralNeed help creating a RunOnce registry entry Pin
Phergus15-May-03 8:35
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GeneralRe: Need help creating a RunOnce registry entry Pin
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