Hey everyone! Heres my situation: Today I purchased a motherboard, and fitted it to my desktop case. I've connected everything up correcty, then I went to put the power supply in. The power supply I was using is about 8-10years old, and only had a 20 pin connection for the MOBO, so I also got a 20pin-24pin converter. As soon as I connected the PSU to the motherboard and plugged it into the mains, I got this high pitched sound. So I tried the PSU in the computer I got it from, and it worked fine. The sound is coming from the motherboard, and the MOBO won't even switch on. I've tried disconnecting everything and just leaving the PSU connected to the MOBO, but I still get the sound. Now as this is a new ATX motherboard, and it also has a 4pin connection for power to the CPU (wich the PSU doesn't have). Could this be the PSU I am using, or is it a fault with the MOBO? I think the PSU would be 200-400Watts, but I'm not sure. Thank you.
IMO could easily be the PSU, I would try using a new one. The wattage ratings also do not always mean much, a quality unit rated at 400 will put out much cleaner and much more power than a cheap unit also rated at 400.
A motherboard will give off 'error' beeps, that does not = it being the mobo being bad. In addition if the PSU isn't giving enough/bad juice it could possibly cause the mobo to run unstable. No guarantee it's the PSU, best would be to simply swap out a different PSU, hopefully a more up to date one that does not need a 'adapter' to hook up.
yea, I suppose BTW, the motherboard couldn't give off error bleeps anyway, becuase for some reason it won't even turn on.
Which to me I'd really look at the PSU. TBH I would never try to peice together a system like you did. PSU's are so cheap now a days, to not only not have the 4 pin connector, but also to have to use a converter, plus it's so old the way it is it's not shocking to me it's not working.