No video?

CharmPeddler · 04-30-2008, 01:36 AM

working on a friends, new to him, computer. he has never seen it running.

with that said, when i turn on the computer, nothing shows up on the screen. there is a "no signal" msg and the monitor goes to sleep. i have switched out the video cards (no on board video) no difference, unplugged the PSU and CMOS, still nothing.
the mobo is an ASUS P4C800

where should i check next? is there much left to check before i can say the mobo is shot?

p.s. i have checked the monitor connections and i know the monitor is working because i have it on a KVM switch.

thanks in advance

Knightsman · 04-30-2008, 01:43 AM

Is the power supply giving power to the fans and what not?

When you press the power button do the fans turn on (cpu fans, case fans??)

computeruler · 04-30-2008, 01:44 AM

did you check to see if the graphics card was wrking with another computer?

CharmPeddler · 04-30-2008, 01:49 AM

fans and all are working.

VC works fine in my other computers.

Knightsman · 04-30-2008, 01:54 AM

ok, can you hear your Hard drive spin up when you boot up? (while connected to motherboard via sata or IDE)

CharmPeddler · 04-30-2008, 02:27 AM

ok, no luck on the Hdd. cant feel or hear a thing on it.

also, with or with out the HDD, i should get at least the bios boot up right?

Knightsman · 04-30-2008, 02:31 AM

Sounds like a bad mobo. If Its a custom pc take out the CPU and fan and see if the motherboard will post or at least beep. The Hard Drive should spin up without the processor if the Motherboard is good.

Make sure to take out the memory as well and put it back in if its the same outcome then that rules out memory also. Memory has been known to not allow a motherboard to post.

If you still get no beeps the mobo is dead. If you do get beeps and your hard drive spins i would bet on the CPU being bad.

CharmPeddler · 04-30-2008, 03:25 AM

cpu and memory out, HDD and VideoCard connected only. i get no beeping, no nothing

pretty much leaves me with a bad Mobo?

2048Megabytes · 04-30-2008, 03:29 AM

You have to leave random access memory in the motherboard or you won't get anything.

Edit: Just read again. You have to also have your central processing unit hooked up.

CharmPeddler · 04-30-2008, 03:38 AM

with same as above cept WITH ram, still nothing happening.

im off to bed. thanks for all the time/help/learning. much appreciated.

i'll check back here for any more info tomorrow.

04-30-2008, 01:36 AM	#1 (permalink)
CharmPeddler Gold Member Join Date: Sep 2005 Location: Kansas Posts: 309	No video? working on a friends, new to him, computer. he has never seen it running. with that said, when i turn on the computer, nothing shows up on the screen. there is a "no signal" msg and the monitor goes to sleep. i have switched out the video cards (no on board video) no difference, unplugged the PSU and CMOS, still nothing. the mobo is an ASUS P4C800 where should i check next? is there much left to check before i can say the mobo is shot? p.s. i have checked the monitor connections and i know the monitor is working because i have it on a KVM switch. thanks in advance __________________ Dell XPS M1710 17" Wide Screen (used as a Tower) Logitech G15 Keyboard, and MX1000 Laser Mouse Monitor: Chimei 22" WideScreen 800:1, 5ms CPU: 2.16GHz,T7400 Intel Core 2 Duo 4MB Cache RAM: 2GIGs DDR2 667MZH GPU: 512MB GeForce GO 7950GTX HDD: 100GB 7200rpm 8mb cache SATA "Screw tech support..... This is what CF.com is for......" ~bumblebee_tuna http://www.speedtest.net/result/223551258.png

04-30-2008, 01:49 AM	#4 (permalink)
CharmPeddler Gold Member Join Date: Sep 2005 Location: Kansas Posts: 309	fans and all are working. VC works fine in my other computers. __________________ Dell XPS M1710 17" Wide Screen (used as a Tower) Logitech G15 Keyboard, and MX1000 Laser Mouse Monitor: Chimei 22" WideScreen 800:1, 5ms CPU: 2.16GHz,T7400 Intel Core 2 Duo 4MB Cache RAM: 2GIGs DDR2 667MZH GPU: 512MB GeForce GO 7950GTX HDD: 100GB 7200rpm 8mb cache SATA "Screw tech support..... This is what CF.com is for......" ~bumblebee_tuna http://www.speedtest.net/result/223551258.png

04-30-2008, 02:27 AM	#6 (permalink)
CharmPeddler Gold Member Join Date: Sep 2005 Location: Kansas Posts: 309	ok, no luck on the Hdd. cant feel or hear a thing on it. also, with or with out the HDD, i should get at least the bios boot up right? __________________ Dell XPS M1710 17" Wide Screen (used as a Tower) Logitech G15 Keyboard, and MX1000 Laser Mouse Monitor: Chimei 22" WideScreen 800:1, 5ms CPU: 2.16GHz,T7400 Intel Core 2 Duo 4MB Cache RAM: 2GIGs DDR2 667MZH GPU: 512MB GeForce GO 7950GTX HDD: 100GB 7200rpm 8mb cache SATA "Screw tech support..... This is what CF.com is for......" ~bumblebee_tuna http://www.speedtest.net/result/223551258.png

04-30-2008, 03:25 AM	#8 (permalink)
CharmPeddler Gold Member Join Date: Sep 2005 Location: Kansas Posts: 309	cpu and memory out, HDD and VideoCard connected only. i get no beeping, no nothing pretty much leaves me with a bad Mobo? __________________ Dell XPS M1710 17" Wide Screen (used as a Tower) Logitech G15 Keyboard, and MX1000 Laser Mouse Monitor: Chimei 22" WideScreen 800:1, 5ms CPU: 2.16GHz,T7400 Intel Core 2 Duo 4MB Cache RAM: 2GIGs DDR2 667MZH GPU: 512MB GeForce GO 7950GTX HDD: 100GB 7200rpm 8mb cache SATA "Screw tech support..... This is what CF.com is for......" ~bumblebee_tuna http://www.speedtest.net/result/223551258.png

04-30-2008, 03:29 AM	#9 (permalink)
2048Megabytes Platinum Member Join Date: Oct 2007 Location: Mainland United States Posts: 645	You have to leave random access memory in the motherboard or you won't get anything. Edit: Just read again. You have to also have your central processing unit hooked up. __________________ "Few men have virtue to withstand the highest bidder." -- George Washington Operating Systems: 32-bit Fedora 8 Linux, 32-bit Windows Vista Service Pack 1 Processor: AMD Athlon 4000+ Socket 939 Motherboard: Foxconn 6100K8MA-RS Memory: 2 gigabytes of PC-3200 Super Talent Last edited by 2048Megabytes; 04-30-2008 at 03:37 AM.

04-30-2008, 01:43 AM	#2 (permalink)
Knightsman Bronze Member Join Date: Apr 2008 Location: Moncks Corner, SC Age: 22 Posts: 42	Is the power supply giving power to the fans and what not? When you press the power button do the fans turn on (cpu fans, case fans??)

04-30-2008, 01:44 AM	#3 (permalink)
computeruler Silver Member Join Date: Apr 2008 Posts: 130	did you check to see if the graphics card was wrking with another computer?

04-30-2008, 01:54 AM	#5 (permalink)
Knightsman Bronze Member Join Date: Apr 2008 Location: Moncks Corner, SC Age: 22 Posts: 42	ok, can you hear your Hard drive spin up when you boot up? (while connected to motherboard via sata or IDE)

04-30-2008, 02:31 AM	#7 (permalink)
Knightsman Bronze Member Join Date: Apr 2008 Location: Moncks Corner, SC Age: 22 Posts: 42	Sounds like a bad mobo. If Its a custom pc take out the CPU and fan and see if the motherboard will post or at least beep. The Hard Drive should spin up without the processor if the Motherboard is good. Make sure to take out the memory as well and put it back in if its the same outcome then that rules out memory also. Memory has been known to not allow a motherboard to post. If you still get no beeps the mobo is dead. If you do get beeps and your hard drive spins i would bet on the CPU being bad.

04-30-2008, 03:38 AM	#10 (permalink)
CharmPeddler Gold Member Join Date: Sep 2005 Location: Kansas Posts: 309	with same as above cept WITH ram, still nothing happening. im off to bed. thanks for all the time/help/learning. much appreciated. i'll check back here for any more info tomorrow. __________________ Dell XPS M1710 17" Wide Screen (used as a Tower) Logitech G15 Keyboard, and MX1000 Laser Mouse Monitor: Chimei 22" WideScreen 800:1, 5ms CPU: 2.16GHz,T7400 Intel Core 2 Duo 4MB Cache RAM: 2GIGs DDR2 667MZH GPU: 512MB GeForce GO 7950GTX HDD: 100GB 7200rpm 8mb cache SATA "Screw tech support..... This is what CF.com is for......" ~bumblebee_tuna http://www.speedtest.net/result/223551258.png

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