Gtx 760 / Power Supply Compatibility

EllieBunnyKiller · May 17, 2015

Hey Tom'sHardware people. I dont know what else to call you. But, up upgrading my system from this:

Amd a8-6600k
8 GB DDR3 Kingston Hyper X RAM
ASRock FM2A55M-VG3+
430 W Bronze Certified Corsair PSU

To this:

Amd a8-6600k
NVIDIA Geforce Gtx 760
8 GB DDR3 Kingston Hyper X RAM
ASRock FM2A55M-VG3+
430 W Bronze Certified Corsair PSU

Basically just adding a 760. Is the PSU enough to handle all that? I also have a CPU fan, Hyper 210 something, I dont know what exactly. Or do I have to upgrade to a 500 or 600 W? It'd save me money if I didnt have to but Im fine either way. Thanks

DonkeyOatie · May 17, 2015

The existing PSU is a 'truck' engine, you are building a 'race car' high-performance computer. I would want a higher performance PSU in any case. Is your APU overclocked? How old is your PSU?

For a system of this sort, I would normally recommend a good 450W PSU. A high-performance 430 will probably be enough. That 430W, not so much. It will run, but you are using the PSU to the max, and it's not built for that sort of load.

Dark Lord of Tech · May 17, 2015

EllieBunnyKiller :

PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($58.99 @ SuperBiiz)
Total: $58.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-17 18:32 EDT-0400

Or made by SEASONIC.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA GS 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($69.99 @ NCIX US)
Total: $69.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-17 18:43 EDT-0400

4745454b · May 17, 2015

The 760 needs two PCIe plugs, and I don't think the CX430 has them. You'll need a new PSU. The XFX linked above is fine, but at $60 is overpriced. This is a better unit at just $10 more out the door, and MUCH cheaper after rebate.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182068

EllieBunnyKiller · May 17, 2015

4745454b :

The one you linked is 60$?

EllieBunnyKiller · May 17, 2015

DonkeyOatie :

My PSU is about 8 months old. My APU is not overclocked also.

Dark Lord of Tech · May 17, 2015

The 430w CX doesn't have the required power connections for the card , it needs 2 and only has one and adapters are a bad idea.

DonkeyOatie · May 17, 2015

As everyone above has said. Even if it does work, it is a terrible idea. Get a new PSU.

I'd go with the Rosewill CAPSTONE Gold 550W. It's very good, and only $40 at the moment, but move fast.

http://pcpartpicker.com/part/rosewill-power-supply-capstone550

EllieBunnyKiller · May 17, 2015

How can I tell if a PSU has more than one PCI connector? Will it say in the product description.

EllieBunnyKiller · May 17, 2015

DonkeyOatie :

Some people are saying it will (others ive asked) and some people say it wont.

DonkeyOatie · May 17, 2015

It won't what? (No one here has said that the Corsair 430 is a good idea for what you want to do)

This is the specification page. http://www.newegg.com/Product/Product.aspx?Item=N82E16817182068 (If not, click on the Specification tab)

Offer expires today. May 17.

4745454b · May 17, 2015

Ouch, I didn't see the rebate expires today. Even if you don't get it it's probably worth the few extra bucks. 80gold instead of 80bronze, and has that awesome 10yr warranty unless they've changed that as well. The Capstone's are great PSU, it's why I'm running one.

EllieBunnyKiller · May 17, 2015

DonkeyOatie :

Basically, what sort of problems will I have if I use the 430? Like this video: https://www.youtube.com/watch?v=uZR-a35sxLg#! it says it will work fine.

4745454b · May 18, 2015

It won't power up. I'm guessing they used an adapter to power up the system as the evga like the corsair you have only has one PCIe power plug. The 760 needs two. I never suggest using an adapter because you are basically forcing the PSU to power something it wasn't designed to do. And guess what happens then? Just because you saw someone online/youtube do something doesn't mean it's a good idea.

DonkeyOatie · May 18, 2015

1. You will need a Molex to pci-e 6 pin adaptor
2. You will be running your PSU close to full load on the 12V rail, and when you get into intense gaming there will be transient demand spikes that exceed what your PSU can provide. The capacitors in the PSU hold reserve power for this. The capacitors in that PSU are not intended for sustained use like that at the temperatures you will reach. Sooner or later, and I really mean sooner, the capacitors will fail. It may be a quiet death, or a small explosion as the capacitor disintegrates, or a fire as it burns. You roll the dice and take your chances.

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