PC wont turn on

XabisMission · 08-07-2008, 02:40 AM

Hi, Hope one of you fine people can help me out with this problem. I turned my PC on last night, and nothing happend. I turned the switch off and on at the back, as this sometimes cures the problem (It has happened intermittently for a while). My speakers gave their usual crackle that they do when I throw the power switch, and then nothing. The power switch has a light built in, and that is on. I took the side of the case off and have noted that the CPU fan spins for a second when the power is turned on via the back switch.

Could it be the power button at the front? Or could the PSU or M/B be broken? I assume that because the light comes on at the back, and the fan spins up momentarily there is power getting through somehow.

Tumbleweed36 · 08-07-2008, 05:00 AM

Please list specs, including the power supply brand name and watts. (that information is on the side of the power supply)

XabisMission · 08-07-2008, 05:16 AM

PC: Athlon dual core 5.2Ghz, 2gig RAM, Geforce 8800 GTX, Soundblaster Audigy

PSU: Hiper modular 580W

MB:ALiveNF6P-VSTA

The case is about 5 years old now, which could explain the intermitent power button problems at the front (worn out switch?)

Tumbleweed36 · 08-07-2008, 05:34 AM

The first suspect is the Hiper 580. Those power supplies are simply very weak and not very reliable. When you pair them with a video card like you have that demands a lot of power, they just can't stand up to the demands made on them. In addition, I would guess you should be pushing a good brand name 650+ power supply for that video card. Do you know anyone who has a good power supply you can try in there?

XabisMission · 08-07-2008, 05:50 AM

Unfortunatley I dont know anyone with that sort of power. Ironic thing is I had to upgrade the PSU to run the video card. Do you have any idea why the CPU fan spools up for a second when I throw the switch? I would've thought if it had blown, nothing would work?

Tumbleweed36 · 08-07-2008, 05:54 AM

My guess is that when you throw the switch, the power demand is the greatest on your rig. When the power demand is too great, I suspect it is too much for that power supply. No guarangees that this is your total issue, but my best thinking is the power supply is not up to the job of that video card. Sorry someone sold you a very weak power supply.

XabisMission · 08-07-2008, 06:00 AM

Curse PC World!!! I'll take my PSU to a friends to see if it works there. The rest of my rig should be ok? Any chance of the other components taking damage?

Tumbleweed36 · 08-07-2008, 08:21 AM

Always that chance when a power supply is weak or quits. Let's hope that you didn't damage anything.

08-07-2008, 02:40 AM	#1 (permalink)
XabisMission Registered User Join Date: Aug 2008 Posts: 4 OS: vista sp1	PC wont turn on Hi, Hope one of you fine people can help me out with this problem. I turned my PC on last night, and nothing happend. I turned the switch off and on at the back, as this sometimes cures the problem (It has happened intermittently for a while). My speakers gave their usual crackle that they do when I throw the power switch, and then nothing. The power switch has a light built in, and that is on. I took the side of the case off and have noted that the CPU fan spins for a second when the power is turned on via the back switch. Could it be the power button at the front? Or could the PSU or M/B be broken? I assume that because the light comes on at the back, and the fan spins up momentarily there is power getting through somehow.

08-07-2008, 05:00 AM	#2 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,686 OS: XP Professional	Re: PC wont turn on Please list specs, including the power supply brand name and watts. (that information is on the side of the power supply) __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

08-07-2008, 05:16 AM	#3 (permalink)
XabisMission Registered User Join Date: Aug 2008 Posts: 4 OS: vista sp1	Re: PC wont turn on PC: Athlon dual core 5.2Ghz, 2gig RAM, Geforce 8800 GTX, Soundblaster Audigy PSU: Hiper modular 580W MB:ALiveNF6P-VSTA The case is about 5 years old now, which could explain the intermitent power button problems at the front (worn out switch?) Last edited by XabisMission; 08-07-2008 at 05:31 AM.

08-07-2008, 05:34 AM	#4 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,686 OS: XP Professional	Re: PC wont turn on The first suspect is the Hiper 580. Those power supplies are simply very weak and not very reliable. When you pair them with a video card like you have that demands a lot of power, they just can't stand up to the demands made on them. In addition, I would guess you should be pushing a good brand name 650+ power supply for that video card. Do you know anyone who has a good power supply you can try in there? __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

08-07-2008, 05:50 AM	#5 (permalink)
XabisMission Registered User Join Date: Aug 2008 Posts: 4 OS: vista sp1	Re: PC wont turn on Unfortunatley I dont know anyone with that sort of power. Ironic thing is I had to upgrade the PSU to run the video card. Do you have any idea why the CPU fan spools up for a second when I throw the switch? I would've thought if it had blown, nothing would work?

08-07-2008, 05:54 AM	#6 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,686 OS: XP Professional	Re: PC wont turn on My guess is that when you throw the switch, the power demand is the greatest on your rig. When the power demand is too great, I suspect it is too much for that power supply. No guarangees that this is your total issue, but my best thinking is the power supply is not up to the job of that video card. Sorry someone sold you a very weak power supply. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

08-07-2008, 06:00 AM	#7 (permalink)
XabisMission Registered User Join Date: Aug 2008 Posts: 4 OS: vista sp1	Re: PC wont turn on Curse PC World!!! I'll take my PSU to a friends to see if it works there. The rest of my rig should be ok? Any chance of the other components taking damage?

08-07-2008, 08:21 AM	#8 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,686 OS: XP Professional	Re: PC wont turn on Always that chance when a power supply is weak or quits. Let's hope that you didn't damage anything. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.