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Seems to boot but no video - Page 2

post #11 of 17
Thread Starter 
Quote:
Originally Posted by seross69 View Post

I dont know who told you that the CX750 was the wrong one but they gave you wrong information. it would work just fine with that video card!!

Well, it doesn't have the correct cables for connecting to the GTX780. I say that because it has the correct PCI-E 6-pin cable but the single 8-pin cable doesn't fit. And when I muscle it (the 8-pin connector) in there, the system won't turn on at all. All the YouTube videos I've watched of 780 installations have the installer plugging both cables in very easily and it looked as if those two cable were already zip-tied.

I'll give it a try again with the video card but the original HDMI issue still exists.
post #12 of 17
Thread Starter 
Nope, when I force the only 8-pin power connector from the CX750 into the GTX-780, the system will not power on at all. If I unplug the 8-pin connector, the system will boot but I still have no video out from the GTX-780 so I am guessing that it requires both the 6-pin PCI-E power and the other 8-pin power to function correctly.

Tried three different monitors BTW. So, still no video from MOBO HDMI or GTX-780's DVI even though all lights and everything indicate the PC is powered up correctly.
post #13 of 17
Yes, it requires both the 6 pin and 8 pin... You shouldn't be forcing the 8 pin on. Make sure you are using the right 8 pin connector. You might be using the 8 pin EPS which is for the motherboard. Do you actually have that one plugged in?
post #14 of 17
Thread Starter 
Quote:
Originally Posted by jameyscott View Post

Yes, it requires both the 6 pin and 8 pin... You shouldn't be forcing the 8 pin on. Make sure you are using the right 8 pin connector. You might be using the 8 pin EPS which is for the motherboard. Do you actually have that one plugged in?

Um, yeah, er, uh... well, THAT makes a huge difference (says the moron). It's booting perfectly now after plugging the 8-pin "CPU" power into the MOBO!

However, this PS still doesn't have the power cords needed to run the GTX-780 so I'll just get the system up and running until Tuesday when the correct PS arrives. Thank you all for the help... especially Mr. Jamey Scott! thumb.gif

ASIDE: I've built every PC I've ever owned... and then started using laptops. It's been about 10 years since I built the last one (Water Cooled!)... Wow, have BIOSs come a long way or what?!!!

- Wil
post #15 of 17
Yes it does. they are just 6+2 pin connectors instead of dedicated 6 pin and 8 pin. You'll just have one of the +2 pins not connected. You're golden mate.
post #16 of 17
Thread Starter 
Quote:
Originally Posted by jameyscott View Post

Yes it does. they are just 6+2 pin connectors instead of dedicated 6 pin and 8 pin. You'll just have one of the +2 pins not connected. You're golden mate.

LOL! I feel old now! So much has changed. Thank you!
post #17 of 17
Quote:
Originally Posted by wilbloodworth View Post

LOL! I feel old now! So much has changed. Thank you!
You're welcome! Have fun with that 780! wink.gif
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