PC has No Display & Won't Boot

UNiQU3 · 10-12-2006, 03:28 PM

I need help! I’m not sure if my Mobo is fried or possibly my PSU damaged or maybe my RAM. My pc switches on but does not boot or beep and there is no display at all. Fans spin, power light is on and you can hear the HDD working but then stop and everything keeps running, my Mobo looks fine but nothing happens? I’m considering buying a new PSU to see if that makes a difference but I have my doubts that it will. Any ideas what could be wrong?
Thanks in advance

**linderman** · 10-12-2006, 03:36 PM

Welcome to TSF:

please give full system specs of your computer
including the psu maker and size
& what age is the machine

**linderman** · 10-12-2006, 03:38 PM

if you are in a hurry PSU is the place where I would start first but dont buy a junker look for antec or enermax of atleast 500 watts or more generally I dont know your system specs so really am just shooting in the dark

the PSU is the biggest trouble maker in the system a good PSU will cost at least $75.00 avoid the low cost ones they are no solution !

~~OMGmissinglink~~ · 10-12-2006, 04:50 PM

Pull the memory sticks out then power on the pc, it should beep. if no beep reinsert the memory and try the pc on another monitor.

UNiQU3 · 10-13-2006, 06:01 AM

Thanks for the replies. I have my eye on a 640W PSU at a good price so I might start there. My pc specs are: WinPower 450W PSU, P4 3.2GhZ,Maxtor 250GB 16MB cache HDD, Nividia 128 graphics, 2 x 1GB DDR2 PC3200 RAM. My pc is less than a year old. I tried taking the memory sticks out and booting but no beep just does exactly as before? Anymore suggestions?

UNiQU3 · 10-13-2006, 08:58 AM

Just tested another PSU. I only plugged the main board power connectors in because it did not have a SATA connection for my HDD. It didn’t do anything, still the same as before - powers up, fans spin but no display and no beeps, nothing more. Does this rule out the PSU as being the problem, the PSU I tested with was only 350W but surely when it just being plugged into the MoBo something should be displayed?
I have also tried using the onboard graphics to see if my graphics card was faulty but still does not change anything. Anybody know what else could be causing this? Thanks

dai · 10-13-2006, 09:05 AM

the psu you test with needs more watts than the original
when you disconnect h/d ect it does not make much difference to the power pull as the main power drawers are
cpu and video

UNiQU3 · 10-13-2006, 09:32 AM

Quote:

Originally Posted by dai

the psu you test with needs more watts than the original
when you disconnect h/d ect it does not make much difference to the power pull as the main power drawers are
cpu and video

I just tested my PSU from reading something in another topic about touching the green to a black wire and it runs fine but does this mean it's not the PSU causing the problem?

~~OMGmissinglink~~ · 10-13-2006, 10:40 AM

with the monitor on if you remove and reinsert the vga plug to your pc does the color change on your monitor?

UNiQU3 · 10-13-2006, 10:48 AM

Quote:

Originally Posted by OMGmissinglink

with the monitor on if you remove and reinsert the vga plug to your pc does the color change on your monitor?

Nope just tried that and nothing happens, the monitor is on standby as if it's not getting any signals.

~~OMGmissinglink~~ · 10-13-2006, 10:55 AM

on the monitors indicator if the monitor is connecting with the vga card, not the monitors/ display?

UNiQU3 · 10-13-2006, 10:59 AM

Quote:

Originally Posted by OMGmissinglink

on the monitors indicator

What do you mean by indicator?

~~OMGmissinglink~~ · 10-13-2006, 11:07 AM

usually on the monitor there's and indicator lite in the button or on the screen frame, should change colors when your monitor is on and you plug and unplug the monitor off the pc's vga card.

UNiQU3 · 10-13-2006, 11:19 AM

The only light on my monitor is the on/off one. Is this me being stupid or is that what you ment?

~~OMGmissinglink~~ · 10-13-2006, 11:37 AM

yes the on/off should change colors when the monitor is on and you plug and unplug the monitor off the pc's vga connection.

UNiQU3 · 10-13-2006, 12:03 PM

yeh it does not change colours though but it does detect it but then goes on standby even when the pc starts running.

~~OMGmissinglink~~ · 10-13-2006, 12:16 PM

pull the grapics card and reinsert the card. make sure the ram is seated firmly in the sockets. post again if any problems.

UNiQU3 · 10-14-2006, 05:32 AM

still no change I don't know what else to do?

UNiQU3 · 10-14-2006, 08:15 AM

Update: Apparently there could have been a surge during the night and my pc has no surge protector, what could have this done to my pc? Also if there were a surge would this affect anything else such as tv etc. because they seem fine.

dai · 10-14-2006, 11:23 AM

if you live in a area prone to surges you should use an ups,computers are more prone to surges than other equipment

10-12-2006, 03:28 PM	#1 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	PC has No Display & Won't Boot I need help! I’m not sure if my Mobo is fried or possibly my PSU damaged or maybe my RAM. My pc switches on but does not boot or beep and there is no display at all. Fans spin, power light is on and you can hear the HDD working but then stop and everything keeps running, my Mobo looks fine but nothing happens? I’m considering buying a new PSU to see if that makes a difference but I have my doubts that it will. Any ideas what could be wrong? Thanks in advance

10-12-2006, 03:36 PM	#2 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,442 OS: win 2000 pro / Win XP pro My System	Welcome to TSF: please give full system specs of your computer including the psu maker and size & what age is the machine __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

10-12-2006, 03:38 PM	#3 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,442 OS: win 2000 pro / Win XP pro My System	if you are in a hurry PSU is the place where I would start first but dont buy a junker look for antec or enermax of atleast 500 watts or more generally I dont know your system specs so really am just shooting in the dark the PSU is the biggest trouble maker in the system a good PSU will cost at least $75.00 avoid the low cost ones they are no solution ! __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

10-13-2006, 09:05 AM	#7 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,746 OS: win 7 32x 64x rtm	the psu you test with needs more watts than the original when you disconnect h/d ect it does not make much difference to the power pull as the main power drawers are cpu and video __________________

10-13-2006, 12:03 PM	#16 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	yeh it does not change colours though but it does detect it but then goes on standby even when the pc starts running. __________________ \|OCZ Technology\|

10-12-2006, 04:50 PM	#4 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	Pull the memory sticks out then power on the pc, it should beep. if no beep reinsert the memory and try the pc on another monitor.

10-13-2006, 06:01 AM	#5 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	Thanks for the replies. I have my eye on a 640W PSU at a good price so I might start there. My pc specs are: WinPower 450W PSU, P4 3.2GhZ,Maxtor 250GB 16MB cache HDD, Nividia 128 graphics, 2 x 1GB DDR2 PC3200 RAM. My pc is less than a year old. I tried taking the memory sticks out and booting but no beep just does exactly as before? Anymore suggestions?

10-13-2006, 08:58 AM	#6 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	Just tested another PSU. I only plugged the main board power connectors in because it did not have a SATA connection for my HDD. It didn’t do anything, still the same as before - powers up, fans spin but no display and no beeps, nothing more. Does this rule out the PSU as being the problem, the PSU I tested with was only 350W but surely when it just being plugged into the MoBo something should be displayed? I have also tried using the onboard graphics to see if my graphics card was faulty but still does not change anything. Anybody know what else could be causing this? Thanks

10-13-2006, 10:40 AM	#9 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	with the monitor on if you remove and reinsert the vga plug to your pc does the color change on your monitor?

10-13-2006, 10:55 AM	#11 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	on the monitors indicator if the monitor is connecting with the vga card, not the monitors/ display?

10-13-2006, 11:07 AM	#13 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	usually on the monitor there's and indicator lite in the button or on the screen frame, should change colors when your monitor is on and you plug and unplug the monitor off the pc's vga card.

10-13-2006, 11:19 AM	#14 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	The only light on my monitor is the on/off one. Is this me being stupid or is that what you ment?

10-13-2006, 11:37 AM	#15 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	yes the on/off should change colors when the monitor is on and you plug and unplug the monitor off the pc's vga connection.

10-13-2006, 12:16 PM	#17 (permalink)
~~OMGmissinglink~~ Troubled Join Date: Sep 2006 Posts: 1,535 OS: XP Pro sp2 My System	pull the grapics card and reinsert the card. make sure the ram is seated firmly in the sockets. post again if any problems.

10-14-2006, 05:32 AM	#18 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	still no change I don't know what else to do?

10-14-2006, 08:15 AM	#19 (permalink)
UNiQU3 Registered User Join Date: Oct 2006 Location: Manchester, United Kingdom Posts: 42 OS: XP Pro SP1	Update: Apparently there could have been a surge during the night and my pc has no surge protector, what could have this done to my pc? Also if there were a surge would this affect anything else such as tv etc. because they seem fine.

10-14-2006, 11:23 AM	#20 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,746 OS: win 7 32x 64x rtm	if you live in a area prone to surges you should use an ups,computers are more prone to surges than other equipment __________________