I have a pc that does not seem to be powering up, when i plug the power lead into the psu the cpu fan and the case fan starts straight away but when i press the power button on the pc i get nothing no hdd light, no keyboard lights and no post nothing at all onscreen, please could someone help as i am going crazy. why are the fans starting when i havent even pressed the power button? thanks in advance
What are the specs on your machine? Did you build this yourself? If so, check connections from PSU to your mobo... if not, try another PSU and see if that does the trick. If not, process of elimination. Good Luck =)
I did'nt build it i just put cpu,memory, optical drive and hdd in MSI mPC mega 800k (Barebones) AMD Athlon 64 3000+ cpu 2x512 mb ram (DDR 266) 20gb hdd phillips cr-rw drive onboard sound and graphics, but has agp slot it uses a micro psu not sure what size but think it is only about 230 thanks
haza12d, may be on to something. can you give us the make of that power supply unit. PSU's are the backnbone of any system and if its bad you'll have all kinds of issues. I also would say make sure your power connections are correct to your motherboard. No posting is troubling.
Power supply is a hipro HP-U223FF5 Tha fans on the pc start and i can turn on power but nothing on screen and no POST here is a link to the actual pc http://msicomputer.co.uk/Products.aspx?product_id=703717&cat_id=81 thanks
I am concerned that you're not even posting. How old is your PC? Is it still under warrenty? If it is I strongly suggest returning it for diagnostics and repair if needed. Also, I never heard of that power supply before and 250 watts may be underpowered. is this a microsystem as a whole?
OK, start from scratch. Remove/disconnect everything from power lines to HD/CD Drives, and memory. Then start putting it back together to see where the fault is. I'm thinking its a bad PSU or one that is improperly connected to the mobo.
All i have plugged in is the 20 pin and 4 pin connections from the power supply, the case fan and the cpu fan and still the same, fans start,nothing else maybe i should get a pci diagnostics card thanks
check the can shaped objects on the motherboard which are capacitors. make certain they are flat topped & not domed. try clearing the cmos as have found that to work sometimes to kickstart a system.
