No boot no post

L

Lrdtalon

Weaksauce
Joined
May 24, 2005
Messages
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Ok so some friends have a machine that is no boot no post, no response. So i figure it has to be the PSU. They bring it to my house, try my PSU (known good PSU) still nothing. SO i try their PSU in my machine, works fine. I am pretty sure it is either the Mobo or the proc but i don't really have a way to test either one. Any suggestions.
 
i tried without the memory and i didn't get any response on the monitor (i didn't have a system speaker setup to here system sounds) i thought i would get some indication that i had a memory problem on the monitor.
 
Strip everything down to the motherboard, one memory DIMM, one hard drive, and the videocard (if there's no onboard video). Try again. Try flashing the CMOS chip. Try replacing the CMOS battery. Try a different videocard, different memory, different PSU, different CPU if possible.
 
with no memory, you will not show anything on monitor. You will get post beeps, tho... so hook up that speaker!

3 long and 3 short for memory, if I remember correctly.

-Skystalker
 
Well i tried the memory and video card in another machine, they both worked great. So now i am pretty sure it is either the Mobo or the proc... I wouldn't figure it would be the HD or the CD rom...
 
could be. try it anyway. eliminate as many variables as possible.

did you try moving the memory to the other slots?
 
Reset the CMOS jumpers? when you say no response is it... NOTHING turns on or... the fans are spinning but nothing loads?

regardless find the CMOS jumper and reset (make sure the pc in unplugged)
and make sure the CPU is installed right...
 
JucyTEC said:
Reset the CMOS jumpers? when you say no response is it... NOTHING turns on or... the fans are spinning but nothing loads?

regardless find the CMOS jumper and reset (make sure the pc in unplugged)
and make sure the CPU is installed right...
Click to expand...

I second that... and if you think you cleared the CMOS and it still doesn't work, take out the battery for couple mins...
 
Lrdtalon said:
NOTHING turns on. No spin up no response nothing.
Click to expand...

well.. in that case.. I don't think anyone messed with it.. but make sure the CMOS jumper is in the correct position.. if it is, then this is most likely mobo.. or cpu..
 
Lrdtalon said:
NOTHING turns on. No spin up no response nothing.
Click to expand...

Well, I'm not completely sure about that board, but on my board, the fans alaways spin even if I don't have the memory in. It's probably the same with that motherboard. In that case, it's probably the mobo that needs to be replaced. If you press the power button and nothing happens at all, the mobo is most likely dead.

Make sure you remove all of the variables. Disconnect the HDD, put the RAM in different slots, disconnect all fans from the mobo fan headers (connect them to molex connectors if possible), reset the CMOS, make sure the CMOS reset jumper is in the right position, test the battery to make sure it isn't dead, and disconnect everything else that's not required for the system to post. Then, hook up that speaker and listen for beeps. If you hear no beeps at all, the mobo is dead.

Oh, and I just thought of something. If nothing at all happens when you press the power button, and I mean nothing at all, no leds, no beeps, no fans spinning even when they are connected to molex connectors, then maybe all this is is a broken power button? Try a different one and see what happens.
 
Power connector on the MOBO? that might be a problem. It sounds as though this could be a screwed motherboard.
 
Bump to an old thread, but I have the same problem and I was wondering if the original guy ever figured it out.

-wil
 
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