The motherboard is a MSI K9N6SGM-V, socket AM2 I believe.
This is by far the weirdest issue I've seen, When I connect the 24 pin motherboard power but not the 4-pin cpu power connector, the fans spin (which makes sense, as the 24 pin powers the mobo)(obviously I wouldn't get a post). When I have both 24 pin and 4 pin power connectors connected nothing, the fan in the power supply moves maybe a mm to a cm, but that's it.
I've replaced the PSU, they had a 400 watt solytech (I know...but I guess they didn't know about PSU's) with a known working brand new PSU a 450 watt CM, and I get the same odd results.
I've been putting PC's together and troubleshooting them for years, and have never seen something so odd. I have read countless posts on many other forums including this one, and read the motherboard manual from front to back, trying to find anything but no luck.
This is the absolute bare essentials needed to get a post and nothing, I have tried the on-baord video and an add-on card same exact results. oh and btw it is not a new build rather one day my co-worker noticed his machine was acting weird, we thought it was a bad PSU but apparently replacing hte PSU hasn't fixed it.
I am inclined to think that the motherboard is bad, possibly the CPU, but the thing is I cannot test the cpu on it's on. The ram is fine.
Edit: I almost forgot to mention that the old PSU he had in their was switched to 220, which I know the US uses 115, so I changed that back, attempting to turn on a PC with the 220 setting could do irrepairable damage to the motherboard/CPU? Perhaps others components as well.
This is by far the weirdest issue I've seen, When I connect the 24 pin motherboard power but not the 4-pin cpu power connector, the fans spin (which makes sense, as the 24 pin powers the mobo)(obviously I wouldn't get a post). When I have both 24 pin and 4 pin power connectors connected nothing, the fan in the power supply moves maybe a mm to a cm, but that's it.
I've replaced the PSU, they had a 400 watt solytech (I know...but I guess they didn't know about PSU's) with a known working brand new PSU a 450 watt CM, and I get the same odd results.
I've been putting PC's together and troubleshooting them for years, and have never seen something so odd. I have read countless posts on many other forums including this one, and read the motherboard manual from front to back, trying to find anything but no luck.
This is the absolute bare essentials needed to get a post and nothing, I have tried the on-baord video and an add-on card same exact results. oh and btw it is not a new build rather one day my co-worker noticed his machine was acting weird, we thought it was a bad PSU but apparently replacing hte PSU hasn't fixed it.
I am inclined to think that the motherboard is bad, possibly the CPU, but the thing is I cannot test the cpu on it's on. The ram is fine.
Edit: I almost forgot to mention that the old PSU he had in their was switched to 220, which I know the US uses 115, so I changed that back, attempting to turn on a PC with the 220 setting could do irrepairable damage to the motherboard/CPU? Perhaps others components as well.