Video Card problem? Not sure. Monitor reads no signal.

[shadowq2]

Yesterday, I purchased an Nvidia 8800 GTS SSC video card to replace my old radeon 1600x pro. My original computer came from CyberPowerPC, so I did not do the original wiring for my system. When I went to install the new video card, I had to unplug the SATA cable to my hard drive and another cable literally taped to the old video card that had a tag labled "VGA don't pull!!". Now, I have noticed that type of cord is taped randomly through out my computer case, so I would imagine it has something to do with the computer LCD heat screen.

I inserted the new nvidia card, but realized I needed to replace my power supply because the watt value wasn't strong enough. So, I gently removed the card and reinserted the old one back into its slot. I then plugged the SATA cable back into where I believed I removed it from on the motherboard. I closed the case and then the computer boots up, but the monitor reads "No Signal". While I would LOVE to fix this until my new power supply (http://www.newegg.com/Product/Produc...82E16817162014) gets here tomorrow, I am very curious why my monitor won't recognize the signal.

Is it possible that I have plugged the SATA cables back in wrong or would this have any effect? Did I short circuit my original video card? Is my guess that the "taped" VGA cable actually for the heat sensor?

Does anyone have any suggestions or advice?

Thanks for your reply in advance.


Quick system parts:
CASE: X-BLADE Mid-Tower 450W W/ WINDOW & LCD Temperature Display + FAN CONTROL

CPU: (Socket AM2) AMD Athlon(TM)64 X2 3800+ Dual-Core CPU w/ HyperTransport
Technology

HDD: Single Hard Drive (80GB SATA-II 3.0Gb/s 8MB Cache 7200RPM HDD

MOTHERBOARD: (Socket AM2)MSI K9N Neo-F nForce 550 Chipset DDR2/800 SATA-II RAID
16x PCI-Express MBoard w/GbLAN,USB2.0,&7.1Audio

VIDEO: ATI Radeon X1600 Pro 16X PCI-E 256MB VIDEO CARD

 

[oldsystem]

You don't even get a signal during boot?

 

[shadowq2]

What do you mean signal during boot? The computer lights up like normal (LED blue lights) the fans start up, I hear the hard drive spin.. but the monitor says "Acer" then gives the message "No Signal".

When I put in the 8800 video card in and start up I hear a loud Beeeeep noise.

 

[robisbell]

means the video card is not fully seated or underpowered.

 

[QUOTH]

any luck?

 

[jackschmittusa]

SATA cable should not have caused the loss of video signal.

If it was not underpowered before, it is not now. Should be easy to see if the vid card is seated properly.

I would guess that something got disturbed and knocked loose.