[ebola]

hi
I have a corsair 650w psu with 52amps on the +12. My problem is that every time i use a video card that needs external power i.e. gts 250 the computer beeps and no display is shown. i've tried 2 video cards that use external power and both beeped and gave no display, i also used an 8400gs and it worked perfectly, the 8400gs doesn't need external power. I tested the gts 250 on another computer and it worked with no problem. My question is how do I test the 6-pin pci-e connector from my psu to make sure it is providing the correct voltage and amperage. I will be checking this post all night so if you need more info please ask. Thanks

 

[oldjoe]

Re: not getting power on pci-e wire

Do you have a Voltmeter?

 

[ebola]

Re: not getting power on pci-e wire

i checked the bios voltage it said 12.2v, i am bringing a voltmeter home with me today and will test the voltage, do i test the pci-e plug or wil any molex do.

 

[Wrench97]

Re: not getting power on pci-e wire

Test the PCIe plug preferably with the card installed so the power supply is loaded, the 650tx is a single rail supply so they should all be the same reading.
What motherboard do you have, does it have a four pin molex connector on it to provide power for high power cards?(Some do Some don't)

 

[ebola]

Re: not getting power on pci-e wire

i have an evga 780i ftw mobo with an e8400 4gb ram, 1 ide hdd, 1 floppy, 1 card reader, 1 scythe 4 channel fan controller. i got 12.3v from the pci-e connector. I don't see a four pin molex connector. still getting long beep after re-seating card, then no display.

 

[Wrench97]

Re: not getting power on pci-e wire

Which one the 132-YW-E178 or the 132-CK-NF78 ?

 

[ebola]

Re: not getting power on pci-e wire

the 132-YW-E178 , i have a friend coming over tomorrow morning and we are going to use his psu which works to make sure that it is definetly the psu. It got great reviews on newegg.

 

[Wrench97]

Re: not getting power on pci-e wire

Let us know it is a good supply and if you have 12.3v on on all 3 of the yellow wires in the pcie connector it should not be the supply.

 

[ebola]

Re: not getting power on pci-e wire

ok its not the power supply, could it be the pci-e bus? got the same beep with a different power supply. Its really weird that the 8400gs works great and its pci-ex16, but neither of my pci-e cards with external power work. I'll check the evga forums

 

[Wrench97]

Re: not getting power on pci-e wire

You stated you tried all 3 of the PCIe slots?

In the Manual on page 45(55 of the PDF file) set the Reset Configuration Data to enabled before installing the card shut down install the card and see if it will boot> http://www.evga.com/support/manuals/132-YW-E178.pdf

 

[ebola]

Re: not getting power on pci-e wire

so i dont have that option in the pnp menu. There is nothing under the init display first menu, it goes right to resources controlled by. But i will set the init display first to pciex, maybe that will work

 

[Wrench97]

Re: not getting power on pci-e wire

Not the first EVGA manual and board I've seen that don't match up:upset:

If setting the PCIe first does not work try clearing the CMOS.

 

[ebola]

Re: not getting power on pci-e wire

still getting the same result

 

[ebola]

Re: not getting power on pci-e wire

the interesting thing is that the computer boots right up and the LCD display on the mobo gives the code FF which means that their are no errors

 

[ebola]

Re: not getting power on pci-e wire

that particular beep code says that its video failure and since i know that the video card works it must be the motherboard itself, but that still doesn't explain why the 8400gs works.

 

[Wrench97]

Re: not getting power on pci-e wire

Are you getting an image on the monitor?

 

[ebola]

Re: not getting power on pci-e wire

no image, no signal coming out of card

 

[Wrench97]

Re: not getting power on pci-e wire

Have you tried both DVI ports?
Does your monitor have to be manually switched from VGA to DVI?

 

[Wrench97]

Re: not getting power on pci-e wire

Are you you using the 8 pin CPU power and not just the 4 pin?

 

[ebola]

Re: not getting power on pci-e wire

yep i used both dvi outputs with same result, no for vga and dvi, and yes 8 pin cpu power is connected