Pc wont display

truescotsman83 · 09-29-2008, 09:48 AM

HEY All

I am attempting to fix my brother's pc, it wont display on the monitor. I ve changed the graphics card, changed the pci express slot, changed the monitor, changed the dvi cable.

onstart up no bleeps from the motherboard, i can see the processor fan start up and all other fans, i can hear the HDD start up, unsure if it a PSU issue or motherboard ? any help would be great.

600w PSU, ASUS MVP DELUXE crossfire motherboard,AMD Athlon 3800+ dual core processor, ATI Sapphire 512mb DDR2 , 2gb Corsair RAM , 250gb sata HD

dai · 09-29-2008, 10:24 AM

more likely a psu issue
do you get a screen in safe mode
what brand is the power supply
what model video card

truescotsman83 · 09-29-2008, 10:43 AM

1. no Safe mode

2. unsure I ll need to find out when i get home .

3.Asus ATI Radeon EAH3450/HTP/512M Vcool Silent 512MB DDR2 TV-Out/DVI (PCI-Express)

dai · 09-29-2008, 10:48 AM

try a cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

there can be 2 solder points you touch with a screwdriver
2 pins you touch with a screwdriver or use a jumper
a cmos clear switch or button
there will be a diagram and instructions in your manual

if you can then get into the bios
post what it lists for the 12v line voltage

if no bios disconnect the drives and see if it goes into the bios

zyonchaos · 09-29-2008, 10:48 AM

Does the motherboard have onboard graphics if so test it with graphics card out if it works chances are your power supply needs more juice?

truescotsman83 · 09-29-2008, 11:36 AM

try a cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

there can be 2 solder points you touch with a screwdriver
2 pins you touch with a screwdriver or use a jumper
a cmos clear switch or button
there will be a diagram and instructions in your manual

if you can then get into the bios
post what it lists for the 12v line voltage

if no bios disconnect the drives and see if it goes into the bios

Answer : thanks ill try that. Do i have to leave the battery out for any length of time ?

Does the motherboard have onboard graphics if so test it with graphics card out if it works chances are your power supply needs more juice?

Answer :No onboard graphics, i have thought that possibly the psu may not be putting out enough watts, as in it may be faulty but i want to check all avenues before buying a new PSU

dai · 09-29-2008, 11:44 AM

about 10 seconds

truescotsman83 · 09-29-2008, 11:50 AM

Will do i let you know the results tommorrow , thanks

zyonchaos · 09-29-2008, 01:34 PM

Quote:

Originally Posted by truescotsman83

Will do i let you know the results tommorrow , thanks

Have you got anychance of robbing a power supply off another machine to test it before paying out any money??

Just an idea

truescotsman83 · 10-02-2008, 04:00 AM

hey Dai sorry about the delay on replying, i have followed your steps and it has made no difference.Unsure what to try next ?

dai · 10-02-2008, 05:20 AM

power supply details

09-29-2008, 09:48 AM	#1 (permalink)
truescotsman83 Registered User Join Date: Sep 2008 Posts: 5 OS: xp pro	Pc wont display HEY All I am attempting to fix my brother's pc, it wont display on the monitor. I ve changed the graphics card, changed the pci express slot, changed the monitor, changed the dvi cable. onstart up no bleeps from the motherboard, i can see the processor fan start up and all other fans, i can hear the HDD start up, unsure if it a PSU issue or motherboard ? any help would be great. 600w PSU, ASUS MVP DELUXE crossfire motherboard,AMD Athlon 3800+ dual core processor, ATI Sapphire 512mb DDR2 , 2gb Corsair RAM , 250gb sata HD Last edited by truescotsman83; 09-29-2008 at 09:52 AM.

09-29-2008, 10:24 AM	#2 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,759 OS: win 7 32x 64x rtm	Re: Pc wont display more likely a psu issue do you get a screen in safe mode what brand is the power supply what model video card __________________

09-29-2008, 10:43 AM	#3 (permalink)
truescotsman83 Registered User Join Date: Sep 2008 Posts: 5 OS: xp pro	Re: Pc wont display 1. no Safe mode 2. unsure I ll need to find out when i get home . 3.Asus ATI Radeon EAH3450/HTP/512M Vcool Silent 512MB DDR2 TV-Out/DVI (PCI-Express)

09-29-2008, 10:48 AM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,759 OS: win 7 32x 64x rtm	Re: Pc wont display try a cmos reset turn the computer off remove the power lead from the back take the side off remove the cmos battery move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2 reinsert the battery put the side on replug in the power lead boot the computer there can be 2 solder points you touch with a screwdriver 2 pins you touch with a screwdriver or use a jumper a cmos clear switch or button there will be a diagram and instructions in your manual if you can then get into the bios post what it lists for the 12v line voltage if no bios disconnect the drives and see if it goes into the bios __________________

09-29-2008, 10:48 AM	#5 (permalink)
zyonchaos Registered User Join Date: Sep 2008 Posts: 23 OS: XP Home	Re: Pc wont display Does the motherboard have onboard graphics if so test it with graphics card out if it works chances are your power supply needs more juice?

09-29-2008, 11:36 AM	#6 (permalink)
truescotsman83 Registered User Join Date: Sep 2008 Posts: 5 OS: xp pro	Re: Pc wont display try a cmos reset turn the computer off remove the power lead from the back take the side off remove the cmos battery move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2 reinsert the battery put the side on replug in the power lead boot the computer there can be 2 solder points you touch with a screwdriver 2 pins you touch with a screwdriver or use a jumper a cmos clear switch or button there will be a diagram and instructions in your manual if you can then get into the bios post what it lists for the 12v line voltage if no bios disconnect the drives and see if it goes into the bios Answer : thanks ill try that. Do i have to leave the battery out for any length of time ? Does the motherboard have onboard graphics if so test it with graphics card out if it works chances are your power supply needs more juice? Answer :No onboard graphics, i have thought that possibly the psu may not be putting out enough watts, as in it may be faulty but i want to check all avenues before buying a new PSU Last edited by truescotsman83; 09-29-2008 at 11:37 AM.

09-29-2008, 11:44 AM	#7 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,759 OS: win 7 32x 64x rtm	Re: Pc wont display about 10 seconds __________________

09-29-2008, 11:50 AM	#8 (permalink)
truescotsman83 Registered User Join Date: Sep 2008 Posts: 5 OS: xp pro	Re: Pc wont display Will do i let you know the results tommorrow , thanks

10-02-2008, 04:00 AM	#10 (permalink)
truescotsman83 Registered User Join Date: Sep 2008 Posts: 5 OS: xp pro	Re: Pc wont display hey Dai sorry about the delay on replying, i have followed your steps and it has made no difference.Unsure what to try next ?

10-02-2008, 05:20 AM	#11 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,759 OS: win 7 32x 64x rtm	Re: Pc wont display power supply details __________________