Pci Express Video Card power Adapter twin molex !

September 22nd, 2013

Hello all, I have just brought a new pc, That had onboard graphics so i had allso purchased a new nvidia geforce 9800 gt graphics card to use in new pc. Now when i brought pc i told the person i brought pc from about card and he said i would need a Pci Express Video card power Adapter cable.
Which he included free for me. I have plugged in the cable into graphics card and inserted card into motherboard, No i am left with the two molex connectors on the end of the graphics card, Do i now have to plug into power supply ? Both of the molex connectors ?
Thanks for any help given really appreciate the help from you lads.
Was just thinking as the is quite an old card does it actualy need the extra power or could i just seat the graphics card and turn on pc without pluggin gin 6 pin connector ?
Or does this have to be connected?

Answer #1
Yes you plug in both Molex’s from the PSU, its fairly straight forward.
The tricky part is the Molex sockets that come out from the motherboard, sometimes its not for plugging in the PSU’s one.
What PSU and CPU are you using?
The PSU might not be enough.
Answer #2
ofc u need to plug the molex into the power supply how else you gonna get power to it lol.
even if the cards old u will need power to it, just hope your psu can handle it.
Answer #3
psu is 450watt power supply , i have the 9800 gt 512 mb seated on the motherboard. with the pci express adapter in the 6 pin slot part now from the end off that where do the 2 molexes go ? Do thay both need to be plugged in ? Allso does the onboard graphics have to be disabled first or is that just used when i connect my cable to it ?
I tried turning it on without the 6 pin connected and it started up but no picture screen was blank, but then i heard windows login lol wtf is that about .
Thanks for the help all.
Answer #4
Any help please ?
Answer #5
vinny100 replied: psu is 450watt power supply , i have the 9800 gt 512 mb seated on the motherboard. with the pci express adapter in the 6 pin slot part now from the end off that where do the 2 molexes go ?
they should go to the Molex connectors on your PSU.
Do thay both need to be plugged in ?
yes they do
Allso does the onboard graphics have to be disabled first or is that just used when i connect my cable to it ?
you can disable the onboard GFX by entering the bios. usually mash DEL when you power up your pc.
I tried turning it on without the 6 pin connected and it started up but no picture screen was blank, but then i heard windows login lol wtf is that about .
could have been using your onboard gpu instead of your 9800gt
Thanks for the help all.
no problem
Answer #6
I think it must be the card not workinh as when turing on with 9800 inserted into motherboar and hooked up to power supply even booting up into windows then under device manager it does not show the 9800 gt just shows onboard geforce 7025 graphics ? And when switching around and putting monitor lead into graphics card the screen is just bland black an says no signal ? yet i could hear windows booting up. I think it must be the graphics card is faulty
Phoned it tech support and thay said regardless of onboard graphics when you have seated a new graphics card and have attached everything correctly it would boot into the primary display adapter, i,e the 9800 gt card not onboard as he said it would not affect the new card as it would boot up with card ?
So going to get new card and install it. the 9800 gt was old card and might have had some problems. Not sure though. If problems with card would it shows blank black screen ? Allso is it not possible that the onboard could prevent card from being detected ? it support said it would not but not sure ? If i disabled onboard graphics from device manager then tried connecting to after reboot what would happen when onboard is disabled and graphics card indeed did not work ? How would i then get any bios menu or switch onboard back on as a backup incase of a problem that card was faulty ?
Thanks lads for all your help.
Answer #7
Switch off the wall.
Re-seat the graphics card, maybe flush the bios with the jumper or remove the battery.
Switch on and boot the system up again to try.

 

| Sitemap |