PC wont turn on, can someone help me find the cause

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Berserker1_5

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#1 Berserker1_5
Member since 2007 • 1967 Posts

Okay, so long story short,  I started playing Rome 2. It's the second day so I thought my PC can run it. It was doing fine, but it shut off and I got a HDMI signal off on my monitor. Since then,  my PC hasnt been able to turn on. When I attempt to turn it on, my Mother board makes a noise "beep", but two red lightsflash, one next to the GPU and one on top right corner of the mobo. The computer sounds as if it is running but no display, fans work, cpu seems to work.

My specs are

HD7950 3GB Gigabytes

i5 3570k no oc

3 harddrives 1 tb each

750 corsair PSU

Z68 Pro version

Win7 ult

 

Normally,  if I have spare parts ill replace them to see if the PC turns on, but I got no parts since I donated them. Any one has a clue on how I can proceed

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Berserker1_5

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#2 Berserker1_5
Member since 2007 • 1967 Posts

Okay so I opened the PC without the GPU it turned on. The mobo still flashed the red lights on the mem ok and next to the gpu light

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#3 gp19
Member since 2005 • 4252 Posts
Sounds like a PSU problem. Try checking if something got loose, or try with a different one to see if it turns on.
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joseph_mach

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#4 joseph_mach
Member since 2003 • 3898 Posts

So, when you get beeps from your computer, that usually means your computer isn't passing its POST (power on self test).  The 4 items that a computer needs to have working in order for it to boot are RAM, the PSU, CPU and motherboard.  Other causes could be recent overclock settings, or other changes made to the BIOS.  If you've made any changes to the BIOS recently, try removing the CMOS battery after unplugging the machine for a minute or so.  Start it back up and see if it'll come back on.  If not, you can try the following:

Check the RAM.  Take out each stick, then power the machine after adding one stick each time and see if it'll come back on.

Check the PSU.  Are there any funny smells coming from it, or is the fan on the psu working when you turn it on?  You're getting some power to the board if it's beeping at you, but check all your connections to see if something didn't come loose, like the cpu aux power cable, etc.  Is there a test button on the back of your psu?  If so, try holding it down for a few seconds and see if you get a green light.  Also, look on your motherboard for the "tick" light and observe it's color (if it has one).  The normal colors can vary by board, but a green or orange light is usually ok.  Red, or other colors may mean problems with the psu or mobo.

Check the mobo.  Look for any capacitors that might have blown, or look like they're about to.  Check for any evidence of discoloration, or anything like that on it.

Check the cpu.  It's really rare that a cpu just goes out, but it happens.  Not much you can really do to test it other than just giving it a visual once over.  Is it still secured?  Did the heatsink/cooler come loose?  Just make sure everything looks ok.

As far as the beeps, you can Google the beep (2 long beeps, a short, then long one, etc) for your motherboard and see what that tells you.  Those beeps can tell you exactly what might be going on.

If you're getting past the BIOS splash screen at any point, then it's "almost" safe to say it's not a hardware issue, but a software/bios setting that might be causing the problem.  If you can get into your BIOS, then try restoring the default/optimal settings to see if that helps.

If you can give us your mobo's make and model, along with a description of the beeps, we might be able to help out.

 

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#5 joseph_mach
Member since 2003 • 3898 Posts

Okay so I opened the PC without the GPU it turned on. The mobo still flashed the red lights on the mem ok and next to the gpu light

Berserker1_5

So you got to Windows without the GPU?

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Berserker1_5

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#6 Berserker1_5
Member since 2007 • 1967 Posts

[QUOTE="Berserker1_5"]

Okay so I opened the PC without the GPU it turned on. The mobo still flashed the red lights on the mem ok and next to the gpu light

joseph_mach

So you got to Windows without the GPU?

I used the onboard gpu that the i5 has

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Berserker1_5

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#7 Berserker1_5
Member since 2007 • 1967 Posts

So, when you get beeps from your computer, that usually means your computer isn't passing its POST (power on self test).  The 4 items that a computer needs to have working in order for it to boot are RAM, the PSU, CPU and motherboard.  Other causes could be recent overclock settings, or other changes made to the BIOS.  If you've made any changes to the BIOS recently, try removing the CMOS battery after unplugging the machine for a minute or so.  Start it back up and see if it'll come back on.  If not, you can try the following:

Check the RAM.  Take out each stick, then power the machine after adding one stick each time and see if it'll come back on.

Check the PSU.  Are there any funny smells coming from it, or is the fan on the psu working when you turn it on?  You're getting some power to the board if it's beeping at you, but check all your connections to see if something didn't come loose, like the cpu aux power cable, etc.  Is there a test button on the back of your psu?  If so, try holding it down for a few seconds and see if you get a green light.  Also, look on your motherboard for the "tick" light and observe it's color (if it has one).  The normal colors can vary by board, but a green or orange light is usually ok.  Red, or other colors may mean problems with the psu or mobo.

Check the mobo.  Look for any capacitors that might have blown, or look like they're about to.  Check for any evidence of discoloration, or anything like that on it.

Check the cpu.  It's really rare that a cpu just goes out, but it happens.  Not much you can really do to test it other than just giving it a visual once over.  Is it still secured?  Did the heatsink/cooler come loose?  Just make sure everything looks ok.

As far as the beeps, you can Google the beep (2 long beeps, a short, then long one, etc) for your motherboard and see what that tells you.  Those beeps can tell you exactly what might be going on.

If you're getting past the BIOS splash screen at any point, then it's "almost" safe to say it's not a hardware issue, but a software/bios setting that might be causing the problem.  If you can get into your BIOS, then try restoring the default/optimal settings to see if that helps.

If you can give us your mobo's make and model, along with a description of the beeps, we might be able to help out.

 

joseph_mach

EDIT: Okay since I'm using the PC, I can make a lenghty post. 

 

Okay, I haven't messed with the BIOS since i have gotten the PC. Regardless, they are at default. The PC has never shut down except when playing this game. The Temp from what I recal has stayed normal even on strong long when playing the game. 

 

I use 16GB ram, with 2 sticks, 8GB each. If one was faulty, the PC should still run fine, since 8 is more than adequet to run the PC, right? If they are both faulty, than the PC should be shutting down regardless if I'm playing games or not. However, since I have gotten it, it has only shut down when playing this game; no other game. 

 

The thing about the Beep noice is that it has been the same noise like always. There is no funky smell coming from anywhere. the only noise is coming from one fan which is from the case. My PCU has no check function. 

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#8 joseph_mach
Member since 2003 • 3898 Posts

Hmmmm.  Could be a problem with the psu or the vid card.  Corsair is a pretty good brand though when it comes to power supplies.  I'd plug the card back in and see if you get beeps again.  I've heard of memory going bad on a video card causing beeps at the bios.  If you get beeps, again, try Googling it and see what the code means.  But I think you've narrowed it down quite a bit already.

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#9 joseph_mach
Member since 2003 • 3898 Posts

[QUOTE="joseph_mach"]

So, when you get beeps from your computer, that usually means your computer isn't passing its POST (power on self test).  The 4 items that a computer needs to have working in order for it to boot are RAM, the PSU, CPU and motherboard.  Other causes could be recent overclock settings, or other changes made to the BIOS.  If you've made any changes to the BIOS recently, try removing the CMOS battery after unplugging the machine for a minute or so.  Start it back up and see if it'll come back on.  If not, you can try the following:

Check the RAM.  Take out each stick, then power the machine after adding one stick each time and see if it'll come back on.

Check the PSU.  Are there any funny smells coming from it, or is the fan on the psu working when you turn it on?  You're getting some power to the board if it's beeping at you, but check all your connections to see if something didn't come loose, like the cpu aux power cable, etc.  Is there a test button on the back of your psu?  If so, try holding it down for a few seconds and see if you get a green light.  Also, look on your motherboard for the "tick" light and observe it's color (if it has one).  The normal colors can vary by board, but a green or orange light is usually ok.  Red, or other colors may mean problems with the psu or mobo.

Check the mobo.  Look for any capacitors that might have blown, or look like they're about to.  Check for any evidence of discoloration, or anything like that on it.

Check the cpu.  It's really rare that a cpu just goes out, but it happens.  Not much you can really do to test it other than just giving it a visual once over.  Is it still secured?  Did the heatsink/cooler come loose?  Just make sure everything looks ok.

As far as the beeps, you can Google the beep (2 long beeps, a short, then long one, etc) for your motherboard and see what that tells you.  Those beeps can tell you exactly what might be going on.

If you're getting past the BIOS splash screen at any point, then it's "almost" safe to say it's not a hardware issue, but a software/bios setting that might be causing the problem.  If you can get into your BIOS, then try restoring the default/optimal settings to see if that helps.

If you can give us your mobo's make and model, along with a description of the beeps, we might be able to help out.

 

Berserker1_5

EDIT: Okay since I'm using the PC, I can make a lenghty post. 

 

Okay, I haven't messed with the BIOS since i have gotten the PC. Regardless, they are at default. The PC has never shut down except when playing this game. The Temp from what I recal has stayed normal even on strong long when playing the game. 

 

I use 16GB ram, with 2 sticks, 8GB each. If one was faulty, the PC should still run fine, since 8 is more than adequet to run the PC, right? If they are both faulty, than the PC should be shutting down regardless if I'm playing games or not. However, since I have gotten it, it has only shut down when playing this game; no other game. 

 

The thing about the Beep noice is that it has been the same noise like always. There is no funky smell coming from anywhere. the only noise is coming from one fan which is from the case. My PCU has no check function. 

Pretty much dead on with those statements.  With the memory, if one stick is bad, you'd still get beeps as the mobo would warn you about it and probably not go past the POST until it was removed.  So I'd imagine your memory was doing ok.

Since you're on it now, the psu and video card seems to be the likely candidates since the issue happens when you play the game.  It may be the load or draw on the psu is causing it to "hiccup" or again, there could be a problem with the video card.  If the temps are looking good on your card, I'd lean a little more towards a psu problem.  I know you said you didn't have any spare parts around, but see if you can borrow one, or try testing it out in another computer?

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#10 Berserker1_5
Member since 2007 • 1967 Posts

Hmmmm.  Could be a problem with the psu or the vid card.  Corsair is a pretty good brand though when it comes to power supplies.  I'd plug the card back in and see if you get beeps again.  I've heard of memory going bad on a video card causing beeps at the bios.  If you get beeps, again, try Googling it and see what the code means.  But I think you've narrowed it down quite a bit already.

joseph_mach

Yeah, it seems it's either the PSU or the GPU going faulty. I just can't tell which. I'm using the HD7950 now as if it never went bad. The PSU also seems to run fine. I'm pretty sure If I run the game again, eventually, I will get the same problem where the PC is ON, but no display. 

 

Also, I use CPID HWMonitor  program to see if my temp for hardware. Though, if the PC shuts down, or display in this case, I can't see how hot it was at maximum load. Is there a program that records it and automatically saves it? 

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#11 joseph_mach
Member since 2003 • 3898 Posts

It's the beeping that has me in between here.  Usually a beep is hardware related.  Whether it be memory, power, etc, it almost always something to do with hardware.  Hopefully someone else will chime in a bit with their opinions and see what else might be causing it.

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#12 joseph_mach
Member since 2003 • 3898 Posts

[QUOTE="joseph_mach"]

Hmmmm.  Could be a problem with the psu or the vid card.  Corsair is a pretty good brand though when it comes to power supplies.  I'd plug the card back in and see if you get beeps again.  I've heard of memory going bad on a video card causing beeps at the bios.  If you get beeps, again, try Googling it and see what the code means.  But I think you've narrowed it down quite a bit already.

Berserker1_5

Yeah, it seems it's either the PSU or the GPU going faulty. I just can't tell which. I'm using the HD7950 now as if it never went bad. The PSU also seems to run fine. I'm pretty sure If I run the game again, eventually, I will get the same problem where the PC is ON, but no display. 

 

Also, I use CPID HWMonitor  program to see if my temp for hardware. Though, if the PC shuts down, or display in this case, I can't see how hot it was at maximum load. Is there a program that records it and automatically saves it? 

See, that sounds a little different.  Like it's a driver issue, or something like related.  Lol..darn those beeps...

Ummm....I don't know of anything that records temps in a log at a point the card or system fails.  If it were a heat issue, I'd imagine you'd hear the vid card fan speed up.  The fan is spinning on your video card when it boots up right?  Is it a reference card or made my Gigabyte, etc?  I've got two 7950's in my rig, but for the most part they're always really quiet.

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#13 Berserker1_5
Member since 2007 • 1967 Posts

[QUOTE="Berserker1_5"]

[QUOTE="joseph_mach"]

Hmmmm.  Could be a problem with the psu or the vid card.  Corsair is a pretty good brand though when it comes to power supplies.  I'd plug the card back in and see if you get beeps again.  I've heard of memory going bad on a video card causing beeps at the bios.  If you get beeps, again, try Googling it and see what the code means.  But I think you've narrowed it down quite a bit already.

joseph_mach

Yeah, it seems it's either the PSU or the GPU going faulty. I just can't tell which. I'm using the HD7950 now as if it never went bad. The PSU also seems to run fine. I'm pretty sure If I run the game again, eventually, I will get the same problem where the PC is ON, but no display. 

 

Also, I use CPID HWMonitor  program to see if my temp for hardware. Though, if the PC shuts down, or display in this case, I can't see how hot it was at maximum load. Is there a program that records it and automatically saves it? 

See, that sounds a little different.  Like it's a driver issue, or something like related.  Lol..darn those beeps...

Ummm....I don't know of anything that records temps in a log at a point the card or system fails.  If it were a heat issue, I'd imagine you'd hear the vid card fan speed up.  The fan is spinning on your video card when it boots up right?  Is it a reference card or made my Gigabyte, etc?  I've got two 7950's in my rig, but for the most part they're always really quiet.

Yeah, the GPU fam is really quite but it works. However, I did just put it on manual speed and it's loud, but the fans are working more. Also, I can't tell what the hell the beep is, I googled it. I got this

http://kb.iu.edu/data/afzy.html

 

What the hell are all those bios. Some say, one beep is fine. Other say DRAM failure..etc

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#14 joseph_mach
Member since 2003 • 3898 Posts

I'd download Speccy and run it on your system.  It'll tell you about all the parts in your system.  It'll even give you current temps.  Once it's running, click on the motherboard tab and it'll give you the manufacturer, model, etc that you can use to look up the beep code for your specific mobo.

 

Edit:  If you install speccy, just watch out as your installing it as it'll try and add a random program much like many utilities try and do nowadays.  Just choose decline, or uncheck the box when you see the window.  Speccy itself is a really small program.

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#15 m3Boarder32
Member since 2002 • 9526 Posts
Check the flux capacitator?
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#16 Silicel1
Member since 2005 • 2342 Posts
Try to pull out everything, remove from case, remove hard drives, optical drives everything except CPU. Now place it on your mobos box and hook it up to your PSU and monitor and try to place one piece of hardware at a time see what happens. I say do it this way because I had a similar problem no matter what I would do it would not start, I pulled everything out of the case then put everything back in one piece at a time and miraculously everything worked fine. You could also do a bios reset. :)