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System worked but now there is no signal to monitor.

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January 20, 2011 4:21:55 PM

Hello, I took apart a working system to clean it and put it back together. The tower seems to be working fine, but now the monitor says no signal. There are no beeps from the bios. The fans are working. Power supply is working. It's not the cable or the video card, because I tried three different video cards. I definitely grounded myself when I put it back together, so I'm pretty damn sure it's not the mobo. Though the CD drive is not working, and I'm not sure if the HD's are running, now that I think about it. Please help?
a b B Homebuilt system
a b U Graphics card
January 20, 2011 6:13:48 PM

Fans working does not mean the PSU is 'working', it only means the PSU is at least 'partially' on...

Problem could easily still be the PSU....
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a b B Homebuilt system
a b U Graphics card
a b C Monitor
January 20, 2011 6:24:07 PM

Double check the 4/8 pin CPU power is plugged in tight.
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January 20, 2011 6:37:41 PM

aford10 said:
Double check the 4/8 pin CPU power is plugged in tight.


Yeah, it is.
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a b B Homebuilt system
January 20, 2011 6:39:39 PM

Can you post your system specs please... it will make it easier to guess what is going on.
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a b B Homebuilt system
a b U Graphics card
a b C Monitor
January 20, 2011 7:01:32 PM

Start with the basics. Connect the CPU/HSF, PSU, power switch, and 1 RAM chip. Everything else can be unplugged. Do you hear the POST beep (assuming you have a motherboard speaker)?

If yes, continue to connect hardware, until it stops POSTing.
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January 20, 2011 7:04:52 PM

evilavatar said:
Can you post your system specs please... it will make it easier to guess what is going on.


Sure.

Gigabyte GA-EX58-UD4P Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Intel Core i7 2.93gHz: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
OCZ Platinum 6GB (3 x 2GB) DDR3 1600: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Sapphire ATI Radeon 1GB HD 4890 Graphics: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Ultra Xfinity 600W PSU: http://www.amazon.com/Ultra-X-Finity-ULT31848-600-Watt-...
7200RPM 1TB Seagate HD: http://www.seagate.com/ww/v/index.jsp?vgnextoid=0732f14...
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January 20, 2011 7:05:59 PM

aford10 said:
Start with the basics. Connect the CPU/HSF, PSU, power switch, and 1 RAM chip. Everything else can be unplugged. Do you hear the POST beep (assuming you have a motherboard speaker)?

If yes, continue to connect hardware, until it stops POSTing.


I will give it a try.
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a b B Homebuilt system
January 20, 2011 7:08:12 PM

any extra case fans or other cooling parts and is the hd sata or ide? Have you overlocked anything? Other drives including dvd, bluray, etc. Be as specific as possible so we can rule out an under powered psu
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a b B Homebuilt system
a c 195 U Graphics card
a b C Monitor
January 20, 2011 7:14:19 PM

That's a poopy PSU. Hopefully it didn't lose a rail, taking other parts with it.
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January 20, 2011 7:19:29 PM

Jtt283 - seeing how my exhusband chose the hardware, the crappy PSU doesn't surprise me, but everything was working fine before I took the system a part. I'm hoping that taking afords advice will fix it.
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a b B Homebuilt system
January 20, 2011 7:19:46 PM

Onus said:
That's a poopy PSU. Hopefully it didn't lose a rail, taking other parts with it.

does it even have more than one rail?
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!