3 different PSUs, still cant get Motherboard to stay on

[GR3Y5H3ART]

the Motherboard ASUS P5QL keeps shutting off

tried 3 different power supplies, last one was a Corsair 650 but it didnt have a plug i needed.

it turns on and shuts off immediately. started from CPU, took off old thermal paste since there is a Thermal Intake CPU fan is on there, replaced compound with Artic Sliver, checked all connections

any help/advice is greatly appreciated

Case is Apevia x-cruiser2 and Graphic Card is Sapphire Radeon

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

unplug all cards, and memory.
and i do mean *all*, you dont need a picture for this test.
and unplug any hardrives & usb / ps2stuff too.

so it's just the motherboard & cpu connected to the psu.
then see if it turns on and stays on.

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

k, will report back

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

no luck, unplugged everything but the OEM CPU Fan and power button

if i keep pushing power button continuously it stays on and thought maybe a power button short?

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

unplug the power button and start it by shorting the pins on the board if you think that.
also, maybe test or replace the battery.

because other than that, it's not looking good.

oh - do you have another fan?
some bioses will shut the system down if they cant detect the cpu fan spinning.

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

unplug the power button and start it by shorting the pins on the board if you think that.
also, maybe test or replace the battery.

because other than that, it's not looking good.

oh - do you have another fan?
some bioses will shut the system down if they cant detect the cpu fan spinning.

tried shortening the pins, same thing...turns on, then turns off

the TI CPU fan comes with a white connector with only 3 pins and i put in the OEM one with the 4 pins

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

so your saying you tried another fan?

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

yes

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

so try another battery and if that makes no difference we need to suspect the cpu or motherboard.

[c_hegge]

Re: 3 different PSUs, still cant get Motherboard to stay on

the Motherboard ASUS...

There's your problem.

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

There's your problem.

dont start that shit, many of us have never had a problem with asus.

time for foto's i suspect.

[mockingbird]

Re: 3 different PSUs, still cant get Motherboard to stay on

If I may offer a 'primitive' fix I think I read about on this forum for that generation of Asus mothrboard:

spray every inch of your board with water and then dry it thoroughly with high-pressure air (Don't waste your money on compressed air, just use a gasoline funnel at the end of a vacuum hose), and see if that fixes it.

I didn't make that up.

[goontron]

Re: 3 different PSUs, still cant get Motherboard to stay on

If I may offer a 'primitive' fix I think I read about on this forum for that generation of Asus mothrboard:

spray every inch of your board with water and then dry it thoroughly with high-pressure air (Don't waste your money on compressed air, just use a gasoline funnel at the end of a vacuum hose), and see if that fixes it.

I didn't make that up.

careful, denver water is absolutely full of rust and other such crap.

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

i cant see what that would do.

not saying there isnt something on the board, but plain water?
i would expect you atleast need to do the old dish-washing liquid and painbrush method.

[mockingbird]

Re: 3 different PSUs, still cant get Motherboard to stay on

I don't know either... I've thought about it, no solid hypotheses. But I believe it works.

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

picked up a micro MSI ATX Mobo and seems that was the problem...stays on but gotta check out Hard Drive and other components

any way to fix the Asus Mobo?

[GR3Y5H3ART]

Re: 3 different PSUs, still cant get Motherboard to stay on

old dish-washing liquid and painbrush method.

hm...really?

[goontron]

Re: 3 different PSUs, still cant get Motherboard to stay on

^ go up to clear creek and do it, the water isn't awful there.

[stj]

Re: 3 different PSUs, still cant get Motherboard to stay on

hm...really?

yea, you can wash pcb's but you must unplug anything and everything you can especially the battery.


you get a mug, put half inch of dish washing liquid in it, top off wih boiling or very hot wter.
stir it and pour it over the board in the sink.
then scrub it with a soft paintbrush and rinse under the tap till all the soap is clearly gone.
then shake the water off and force-dry it with a fan heater or hairdryer.

the force drying is the important part - standing water causes corrosion.
no leaving it outside in the sun type crap.

btw, this is a common trick with dusty or nichotine stained boards.
just one thing, dont forget to remove any chipset heatsinks and clean any paste off with IPA first.
and dont forget to put them back afterwards!!

[rhomanski]

Re: 3 different PSUs, still cant get Motherboard to stay on

A Gnat, a tiny insect, died on my P5Q-E a couple years ago and shorted out the board. After removing the offending critter, the board is up and running right now. The only time it has even hiccuped. I wonder how many other manufacturers boards can run for 8 or 9 years with so little trouble.