I keep my PC running 24/7 Yesterday I noticed it was turned off.... Odd. I turned it back on... outside of the improper shutdown messages, eveything on the computer worked just fine. Later, it was turned off again. Turned it back on... same thing. Later, off again.... (repeat 5x) I then noticed that each time I turned it back on, it took a shorter time for it to go off again. I unplugged it out of the UPS directly into the power outlet, ran in safe mode, even did a memory check.... it kept shutting down as if someone unplugged it. But each time it shuts down, the chassis lights never go out. There is still power going through the unit. Now it won't turn on at all... it starts for a second and stops.... like a laptop with a dead battery. Could it be the Power Supply has issues??.... I thought Power Supplies either work or they are simply dead.
hi, disconnect the power switch from the motherboards control panel. And then use a flat head screw driver to short the two power switch pins. This will rule out your power switch. I personally think this will solve ur problem.
Not necessarily. Power supplies run less efficiently when they heat up, and so the required wattage and amperage may not be adequately provided by an underpowered PSU. Can you please post the make and model of your PSU, along with your system specs? Please be as detailed as possible.
I'll try that when I get home... :chk: sorry for that... I think I can tell the difference if the computer shuts down and going into sleep mode. It has an 1100 watt PS... hardly underpowered... As far as your overheating suggestion..... I still have the issue when the unit has been unplugged for a while so it is not from that unless.... When I removed the PS, I notice there was a ton of lint that had accumulated between the vent hole at the bottom of the PS and the base of the unit. Not the hole where the fan is, there is another hole on the other side. I vacuumed out the lint and put it back together, but it didn't change anything... Could that had overheated and permanently damaged the PS? Sure - HP Blackbird 002 PC - Intel® Core2™ Extreme Quad-Core 3.0GHz - Windows Vista Ultimate System Builder 32 bit - Dual NVIDIA GeForce 8800 Ultra with NVIDIA SLI - CPU and Graphic cards liquid cooling - 2 GB 800 MHz CORSAIR PC2-6400 DDR2 SDRAM* - 1 160GB 10,000 rpm SATA (Western Digital Raptor) - 1 500GB 7200 rpm SATA* - 2 Super multi-drive with Lightscribe (DVD+/-R/RW+/-DL) - ADI onboard audio - AVG Anti-Virus -1 year subscription - CyberLink PowerProducer * Replaced I post installed - 4 Gigs Corsair TWIN2X2048-8500C5D - 4x Seagate Barracuda 7200.11 1.5TB Internal SATA 3.5" Hard Drive - ST31500341AS - CORSAIR Memory Airflow Fan Click on the link for more detailed information. Thanks
I am not an expert but I have some experience with power supply issues. When you say "each time it shuts down, the chassis lights never go out. There is still power going through the unit." and "Now it won't turn on at all... it starts for a second and stops.... like a laptop with a dead battery." It´s seems to me your power supply is going dead. Personally the first thing I would do given this hardware behavior is a power supply replacement.
