Help, computer not turning on!

Hellsing47 · Jul 30, 2006, 11:15 PM

My new motherboard just came in, as an RMA return from Newegg. Before I returned it, when you would flip the switch on the power supply, the computer would immediately turn on, and display absolutely nothing on the monitor. To make sure it was the motherboard, I put my friends motherboard into my computer, and plugged all my components into it. It worked fine, BIOS and Windows booted.

Now that my new motheboard is here, I'm still having problems. I hooked everything up, and flipped the switch on the power supply. All the fans briefly jittered like they usually do when you turn the PSU on, except now the computer won't turn on. The power button does nothing. I've double checked everything I could think of, I took the motherboard out, remounted it, took all the components and hardware out and put then back in. I'm stuck, frustrated, and out of ideas. Help anybody?

niceguyrichy · Jul 30, 2006, 11:22 PM

tell us what components you're using

could be something real simple like your mobo wants to recognise on-board graphics and you've got a gf card plugged in etc, so give us some details so we can help

Hellsing47 · Jul 30, 2006, 11:43 PM

Here is a list.

Motherboard
--------------
http://www.newegg.com/Product/Produc...82E16813157081

Power Supply
---------------
http://www.newegg.com/Product/Produc...82E16817148008

Video Card - 9800 Pro 128 mb, AGP
RAM - 512 stick of corsair value, 512 stick of kingston value

CPU - AMD Athlon 64 3800+

Tipstaff · Jul 31, 2006, 06:20 AM

Check you motherboard manual on how to reset the bios, and which jumper you need to change in order to do so. The normal procedure would be to unplug the power, remove the motherboard battery, change the jumpers to reset the bios, then reverse the order. If it boots up after that then go into the bios, and reload "Setup Defaults" first, then making your changes to the rest as needed.

It could be that the system mistakenly detecting a piece of hardware, probably the CPUs speed, or the memory timings on the ram.

kn00tcn · Jul 31, 2006, 08:57 AM

if cmos reset doesnt work then make sure the mobo not shorting & touching some metal piece on the case

& on a related story, my friend once dropped a screw.. & it fell on the mobo... & he tried to turn on the comp, but it would only turn on the fans & that was it... turns out, the pcb got scratched... i forgot what happened after hehe, i told him to use a lead pencil & redraw the missing lines

Yousaif · Jul 31, 2006, 10:43 AM

Try booting with just one stick of RAM, then the other. This just happened on my wife's PC. Turned out it was a faulty stick of RAM.

Hellsing47 · Jul 31, 2006, 06:28 PM

All my components work, since they were tested in another motherboard before I sent in the RMA.

I'm still getting nothing...

Hellsing47 · Jul 31, 2006, 07:51 PM

How do you know if Resetting CMOS works?

I did what the manual told me, short two pins with a jumper for five seconds, by moving the jumper from the "default" position to the "Clear" position. When attempting to then boot, should I keep it on Clear for the first time, or put it back to Default.

And some of you said that clearing CMOS takes 15 minutes, or even overnight. The manual says only 5 seconds, just seems a bit odd.

I tried both, and still nothing...

Tipstaff · Aug 1, 2006, 03:37 AM

15 minutes isn't necessary. That's more to do with making sure the capactiors are discharged.

Steps: Unplug the power. Remove battery. Short jumpers for 5 seconds. Replace the jumpers back into the original position. Now, you can either replace the battery, then hookup the system power, or try the system out first to make sure it works, then place then battery back. If it doesn't work you can try resetting the bios again. This way you won't have to remove the battery again, and as along as you keep the power cord plugged in, and the power supply in the "on" position your bios settings will remain active. You will pretty much know if your bios is reset when you bootup.

BTW, even though your parts worked in your friends machine I would try using his ram and CPU on your board. At least try the ram. It could be that your board is being picky on the ram timings, or is misreading or doesn't recognize your CPU. If it does work I would take the opportunity while it's working to see if there is a bios update for your board. Update it using his parts, then replace them with yours to see if the problem continues.

Jul 30, 2006, 11:15 PM	#1
Hellsing47 DriverHeaven Newbie Join Date: Jul 2006 Posts: 7 Rep Power: 0	Help, computer not turning on! My new motherboard just came in, as an RMA return from Newegg. Before I returned it, when you would flip the switch on the power supply, the computer would immediately turn on, and display absolutely nothing on the monitor. To make sure it was the motherboard, I put my friends motherboard into my computer, and plugged all my components into it. It worked fine, BIOS and Windows booted. Now that my new motheboard is here, I'm still having problems. I hooked everything up, and flipped the switch on the power supply. All the fans briefly jittered like they usually do when you turn the PSU on, except now the computer won't turn on. The power button does nothing. I've double checked everything I could think of, I took the motherboard out, remounted it, took all the components and hardware out and put then back in. I'm stuck, frustrated, and out of ideas. Help anybody?

Jul 31, 2006, 06:20 AM	#4
Tipstaff HardwareHeaven Extreme Member Join Date: Jul 2002 Location: Real capital of Canada: Torauna Posts: 6,773 Rep Power: 190 System Specs	Check you motherboard manual on how to reset the bios, and which jumper you need to change in order to do so. The normal procedure would be to unplug the power, remove the motherboard battery, change the jumpers to reset the bios, then reverse the order. If it boots up after that then go into the bios, and reload "Setup Defaults" first, then making your changes to the rest as needed. It could be that the system mistakenly detecting a piece of hardware, probably the CPUs speed, or the memory timings on the ram. __________________ Portal: The Flash Version _________________________________ Brain: So, you sacked the cocky khaki Kicky Sack sock plucker? Mr. Sackett: The second cocky khaki Kicky Sack sock plucker I've sacked since the sixth sitting sheet slitter got sick.

Jul 31, 2006, 08:57 AM	#5
kn00tcn DriverHeaven Senior Member Join Date: Jun 2006 Location: Toronto Posts: 649 Rep Power: 0 System Specs	if cmos reset doesnt work then make sure the mobo not shorting & touching some metal piece on the case & on a related story, my friend once dropped a screw.. & it fell on the mobo... & he tried to turn on the comp, but it would only turn on the fans & that was it... turns out, the pcb got scratched... i forgot what happened after hehe, i told him to use a lead pencil & redraw the missing lines __________________ http://www.kn00tcn.net/site/ati-catalyst-profiles/ http://www.kn00tcn.net/FPSLimiter.rar

Aug 1, 2006, 03:37 AM	#9
Tipstaff HardwareHeaven Extreme Member Join Date: Jul 2002 Location: Real capital of Canada: Torauna Posts: 6,773 Rep Power: 190 System Specs	15 minutes isn't necessary. That's more to do with making sure the capactiors are discharged. Steps: Unplug the power. Remove battery. Short jumpers for 5 seconds. Replace the jumpers back into the original position. Now, you can either replace the battery, then hookup the system power, or try the system out first to make sure it works, then place then battery back. If it doesn't work you can try resetting the bios again. This way you won't have to remove the battery again, and as along as you keep the power cord plugged in, and the power supply in the "on" position your bios settings will remain active. You will pretty much know if your bios is reset when you bootup. BTW, even though your parts worked in your friends machine I would try using his ram and CPU on your board. At least try the ram. It could be that your board is being picky on the ram timings, or is misreading or doesn't recognize your CPU. If it does work I would take the opportunity while it's working to see if there is a bios update for your board. Update it using his parts, then replace them with yours to see if the problem continues. __________________ Portal: The Flash Version _________________________________ Brain: So, you sacked the cocky khaki Kicky Sack sock plucker? Mr. Sackett: The second cocky khaki Kicky Sack sock plucker I've sacked since the sixth sitting sheet slitter got sick.

Jul 30, 2006, 11:43 PM	Thread Starter #3
Hellsing47 DriverHeaven Newbie Join Date: Jul 2006 Posts: 7 Rep Power: 0	Here is a list. Motherboard -------------- http://www.newegg.com/Product/Produc...82E16813157081 Power Supply --------------- http://www.newegg.com/Product/Produc...82E16817148008 Video Card - 9800 Pro 128 mb, AGP RAM - 512 stick of corsair value, 512 stick of kingston value CPU - AMD Athlon 64 3800+

Jul 31, 2006, 06:28 PM	Thread Starter #7
Hellsing47 DriverHeaven Newbie Join Date: Jul 2006 Posts: 7 Rep Power: 0	All my components work, since they were tested in another motherboard before I sent in the RMA. I'm still getting nothing...

Jul 31, 2006, 07:51 PM	Thread Starter #8
Hellsing47 DriverHeaven Newbie Join Date: Jul 2006 Posts: 7 Rep Power: 0	How do you know if Resetting CMOS works? I did what the manual told me, short two pins with a jumper for five seconds, by moving the jumper from the "default" position to the "Clear" position. When attempting to then boot, should I keep it on Clear for the first time, or put it back to Default. And some of you said that clearing CMOS takes 15 minutes, or even overnight. The manual says only 5 seconds, just seems a bit odd. I tried both, and still nothing...