My computer cannot turn on

last SG · 2011-01-31T23:12:32+00:00

The motherboard is a new one.(still got the SATA flaw though)

Call4ljw SG

It just happens out of a sudden.

Connectors are all in place.I'm suspecting it's my power supply, and the motherboard power light is on.

When i try to turn on my computer, nothing happens. But if i switch off power first, the power LED at front panel comes on for a while then goes off.

This is all the details i have for now.

Thanks for reading! hope you can help me solve it.

^Acid^ aka s|aO^eH~ SG

PSU fan working?

I presume nthing on display eh...?

FBFIce SG

unplug everytin and test

Call4ljw SG

unplug everytin and test

okay i know how to unplug everything...but how to test? lol

Call4ljw SG

PSU fan working?

I presume nthing on display eh...?

Cannot even turn on...how to have display, and i think need on then the PSU fan will run.

I dont have additional hardware to use to test.

FBFIce SG

stick 1 finger into the power socket n 1 finger to your power supply inlet

Asromanista2001 SG

stick 1 finger into the power socket n 1 finger to your power supply inlet

you should stick one finger in the ac outlet..................and another finger in your ass..............

FBFIce SG

gud idea, u try first

Call4ljw SG

stick 1 finger into the power socket n 1 finger to your power supply inlet

=.= ya you try first lol

FBFIce SG

since your MB is a gonna, why dun u give a try?

MyPillowTalks SG

1. Put the motherboard on the table, insert graphics card and only 1 piece of ram.

2. Wire up power only to the mobo

3. Plug in vga/dvi/connector into graphics card, short the +/- header for 'power on' and see if it boots

If still can't, try with other ram, sometimes system won't beep even if it's ram problem.

Best if you have other system to test on.

Good Luck!

Call4ljw SG

1. Put the motherboard on the table, insert graphics card and only 1 piece of ram.

2. Wire up power only to the mobo

3. Plug in vga/dvi/connector into graphics card, short the +/- header for 'power on' and see if it boots

If still can't, try with other ram, sometimes system won't beep even if it's ram problem.

Best if you have other system to test on.

Good Luck!

My computer only has one piece of 2GB RAM since i bought it, about 1-2wks ago.

My MB is Asus P8P67 which has the MemOK! switch, so i doubt any problem with memory.

I'll try out the rest.

Thanks all for replying, will inform of any progress.

Call4ljw SG

Updates: 11:18

After unplugging the 12V additional CPU power, when power button is pressed,(1) the power LED will come on for awhile with the CPU fan also blowing at 100%(not my setting). (2)After that, the power LED will stay on after power button is pressed and the fan at 100% all the way.

After clearing CMOS, (1) does not happen, only (2).

@acid: PSU fan seems to be working fine. After doing as above, nothing on display yes.

Everything is unplugged so far. fitted back RAM and graphics card, still not working.

New Updates:

Tested with a different GPU and RAM, no change.

Call4ljw SG

From my point of view, high likely is the PSU problem. I'm thinking of bringing it for repair.

My PSU is the Enermax Liberty Eco series...anyone know where can i send it for repair?

Call4ljw SG

Double posting.

FBFIce SG

PSU dun go kaput tat easy

did you fuk yr mobo till pregnant - is yr MoBo warp?

wat was the cpu temp n wat have u done before this happened?

check for burned pins

Call4ljw SG

PSU dun go kaput tat easy

did you fuk yr mobo till pregnant - is yr MoBo warp?

wat was the cpu temp n wat have u done before this happened?

check for burned pins

no dirty minded replies ty.

Everything is normal...no burned pins too.

Seems that the PSU suddenly cannot supply enough power.

FBFIce SG

just hope its the PSU - gud luk

Call4ljw SG

just hope its the PSU - gud luk

Tomorrow i going down to their service center to test the PSU out.

If PSU found to be okay, then problem probably lies with MB or CPU.

Call4ljw SG

Update: I went to repair centre. Convergent staff tested the PSU and said it was okay.

Any ideas?