Psu turns off ?

Hughes123 · Feb 14, 2014

i currently have my mobo outside my case running, i use a jumper to start it, but if i keep my 6 pin pci-e in the gpu it wont turn on, if i take it out it will boot but the gpu needs the 6. my psu is a corsair 430w so it has enough power. also i use a 2xmolex to 6pin pcie adapter

rolli59 · Feb 14, 2014

Faulty card or you do not have enough power. Post your full specs!

scout_03 · Feb 14, 2014

give the name and model of that psu since most of the corsair 430 have a 6 pins pci-e connector .

Hughes123 · Feb 14, 2014

rolli59 :

I have tried the card on another system, works fine. i have also tested the psu and all the wires are working. my idea might be that the adapter for 6 pin might need a molex each from separate molex cables

gigabyte am3 mobo (not sure which model)
phenom x4
asus directCU2 6950
4gb kingston 1333 ddr3
corsair cx430m
usb boot up (no hdd or any other peripherals)

rolli59 · Feb 14, 2014

Check if there is a bios update for your board, many gigabyte boards need it for ver 3.0 cards or run BIOS in legacy mode.

Hughes123 · Feb 14, 2014

rolli59 :

I dont think that will be the problem because i ran a xfx 7950 with a different psu on it for a while and that worked fine. could running 1 molex from 1 line and running the other from a different molex line help. because the lines will be empty apart from that so it will both have separate power from each line to go into the 6pin pci-e

scout_03 · Feb 14, 2014

this is your psu and it have a 6 pins pci-e cable so you dont need the molex adaptor check all the cable you have on hand .http://www.corsair.com/en/cx-series-cx430m-modular-atx-power-supply-430-watt-80-plus-bronze-certified-modular-psu.html

Hughes123 · Feb 14, 2014

scout_03 :

I had a look in the box but there is no 6 pin. only one 6+2 pin came with it, and also 1 molex line, and 2 sata power lines

scout_03 · Feb 14, 2014

the 6+2 could be the pci-e cable .

Hughes123 · Feb 14, 2014

scout_03 :

Im already using the 6+2 in the 6950, but i still need another 6 pin

rolli59 · Feb 14, 2014

Hughes123 :

rolli59 :

I dont think that will be the problem because i ran a xfx 7950 with a different psu on it for a while and that worked fine. could running 1 molex from 1 line and running the other from a different molex line help. because the lines will be empty apart from that so it will both have separate power from each line to go into the 6pin pci-e

Only using 12 volts from a single rail PSU should not matter.

Hughes123 · Feb 14, 2014

rolli59 :

Hughes123 :

Only using 12 volts from a single rail PSU should not matter.

I thought that. but every time i plug the 6 pin adapter in the system just shut off again ?

Hughes123 · Feb 14, 2014

since the psu still has a spare 6 pin slot for a modular cable, would this work, http://www.scan.co.uk/products/silverstone-sst-pp07-ide6bg-pcie-6pin-to-pcie-6pin-250mm-black-gold

scout_03 · Feb 14, 2014

it will not since you already have another gpu on the psu it could not handle both card lack of power that why it cut to protect itself you need to get a bigger psu that will support all the parts in the computer .

Hughes123 · Feb 14, 2014

scout_03 :

so there's no way of powering it? i only bought this 2 days ago and i have no money left for a bigger one

Hughes123 · Feb 14, 2014

scout_03 :

i only have the one gpu on it, is there any way i could use any adapter to power it. i still have 2x6 pin sata&peripheral modular slots left.

scout_03 · Feb 14, 2014

the power specs you gpu need so i dont think that psu could handle it . http://www.asus.com/Graphics_Cards/EAH6950_DCII2DI4S2GD5/#specifications

Hughes123 · Feb 14, 2014

scout_03 :

So this psu has no chance of even getting it to power on ?

scout_03 · Feb 14, 2014

no it wont even on amd they say it need al least a 500 wattts psu or higher with 2 x6 pins power cable .

Hughes123 · Feb 14, 2014

scout_03 :

Ok thanks for your help. now im stuck with a power supply that is no good and a system i can't power

scout_03 · Feb 14, 2014

does your motherboard have a onboard video chipset or try to find a older gpu card around to use the system until you could get a bigger psu and try to return this one if you could for the shut off issue .

rolli59 · Feb 14, 2014

Agree with the above the PSU is struggling with the card although a system with a HD6950 here pulls only 326 watts total load. http://www.anandtech.com/show/5625/amd-radeon-hd-7870-ghz-edition-radeon-hd-7850-review-rounding-out-southern-islands/17
Maybe your specific PSU can not provide the full 32 amps (384watts) on the +12 volts it has but it is really cutting it close to have the CX430 running that rig.

Hughes123 · Feb 14, 2014

would a cx500m be enough ? i just about have money left enough for that

rolli59 · Feb 14, 2014

Yes it would

scout_03 · Feb 14, 2014

check this the cx 600m for 5 buck more newegg promo http://pcpartpicker.com/part/corsair-power-supply-cx600m

Psu turns off ?

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