Computer will turn on after 50 pushes on the power button.

[Chobits]

I don't know what is going on guys. I spent around 11 hours setting up my friends 8rda+ 2500+ 512megs pc3200 Ram. The pus is a 350Watt Enermx

Now the weird thing is when I plug it in it wait 15 seconds before I turn it on...someitmes it'll turn on sometimes it won't. Someimtes I'll sit there MASHING the power button for 50 tries before it goes on. I have alrady RMA'd bad ram if that matters. But once I get it turned on provided I don't mess with the configuration I can turn it on anytime. But If I try to OC or anything i lose it and it seems as if it will never turn on.

Does anyone have an idea?

I know it isn't loaded....two drivers (dvd,cdrw),120gig WD, 2500+ @ stock, pc3200 @ stock....

Anyone have an idea why it does this? Is it the powersupply? Should i RMA it?

 

[Uclagamer_99]

umm did you up the voltage when overclocking? does the actualy system turn on and not boot or does the system not even spin up?

 

[Chobits]

no no...I haven't even Overclocked! once I get the PC to turn on I can easily boot into windows and p95 it up...

 

[Gonad the Barbarian]

Might be the power switch (set the bios to power on after a power loss for an easy test), power supply, or motherboard.

 

[Pakman117]

Or to test the power button you could change the BIOS to allow you to power the computer via pressing a button on the keyboard - or taking two wires, touching them to the motherboard pins, and then touching the ends together for a moment. This can easily be accomplished by taking an old fan connector, sticking that on the motherboard's pins, and then connecting the two cut and stripped wire ends together briefly.

 

[paperfist]

If it's not a bad power switch then it's likely a bad power supply.

When I added a new video card to my system I had the same problem, you would push the power button forever and if you got lucky it would boot. Turn it off and you could plan on wearing out your finger again. The solution was to get a new power supply and after that I never had a turn on problem again.

 

[fr]

I had this same problem with a Soyo motherboard. 49 out of 50 times I would get a blank screen (actually no signal) on the monitor. The system powered up and the LEDs all worked, but no post and no beeps. I replaced the motherboard and all was fine again.


EDIT: I should also when that when the system did boot, it would lock up randomly. I wore out my power button during this time (really).

 

[Jeff7]

Originally posted by: Pakman117
Or to test the power button you could change the BIOS to allow you to power the computer via pressing a button on the keyboard - or taking two wires, touching them to the motherboard pins, and then touching the ends together for a moment. This can easily be accomplished by taking an old fan connector, sticking that on the motherboard's pins, and then connecting the two cut and stripped wire ends together briefly.

I'd just use a screwdriver to briefly connect the two PW_ON pins on the motherboard; that always does it when...well, whenever I need to power on the PC but don't have the button there. Just make sure you're contacting the correct pins.

 

[pilgrim2u]

I had this "mash the power on for 50 times" on an old NEC computer. It never got better. I was lucky one time to place the HD in a new computer to save the data.

I still do not know what the problem was :-(

was frustrating :-(

 

[bgeh]

maybe a faulty power button?
or did you secure the connection between the plug and the 2 pins?
try using a screwdriver to connect both pins. if it immediately turns on without any problem, then it's most probably your power button

 

[Gunbuster]

99% of the time its a power supply, I have never seen a button go bad outside of physical abuse

 

[Rapidskies]

Most of the time this tends to be the motherboard, to test you can provide the power on signal to the powersupply by jumping pins 14 & 15 on your atx power connector. If it powers on ok then your psupply is fine and it's either the mobo or pswitch. Here is a diagram of the power connector:

http://www.whade.com/atxpwr.htm

 

[chocoruacal]

Try a different power supply. Use a screwdriver to short the PWR ON pins to rule out a faulty switch.

 

[dullard]

I'd say in my experience it is the power supply thinking it is overheating and shutting off to protect itself. It could be a faulty power supply. It could be connected up wrong. The fan could be malfunctioning, etc.

The first major computer problem I had that I fixed myself was exactly what you are describing. Sometimes I had to sit there for 30 minutes pressing the on button to finally get it to stay on. I eventually got up the nerve to open up the power supply (it had stickers not to and I was a young teen). Inside the fan was a loose screw. So the fan was turning slowly and the power supply was overheating and turning itself off when I tried to turn it on. I took out the screw and the problem was solved forever.

 

[Gonad the Barbarian]

Originally posted by: Gunbuster
99% of the time its a power supply, I have never seen a button go bad outside of physical abuse

I had a bad button on a new case right outside the box.

And wow, some of you guys must like going around your elbow to get o your thumb. Set the Bios to power on after power loss, unplug, plug in - absolute easiest and safest way to test for a bad switch if you can get the comp on in the first place.