Missing cable to power my GPU

Bennybo100 · Mar 20, 2014

Hello, so I recently purchased and built (almost) my own PC but have found that the cables provided from my PSU, the CoolerMaster Elite 500W, don't suffice to power my Asus GTX 770 DirectU II OC.

Basically, the GPU has an 8-port and 6-port connection socket and provided a 8-port to 2x 6-port adapter. This would be ideal for PCI-E connections (I believe?) but my case, the CoolerMaster Elite, only provides 1xPCI-E cables but plenty SATA and molex cables.

Is there something I'm missing here or do I need to buy an adapter? If I do, what is the best option to go for? I've read it isn't ideal to power a powerful GPU with molex, is this true?

Thanks very much, Ben

Mouldread · Mar 20, 2014

Hello Benny,

I'm not entirely sure a 500W PSU will be enough for the GTX770 even if it did have all the cables. Other than that I just sold my old graphics card on eBay and in the box there were 2 6 pin power connectors looking like this http://www.kybernet.co.uk/wp-content/uploads/2013/06/CLTAR-RB-527-hg.jpg

You could try buying a cable like this but still a bit affraid about your PSU.

Hello man · Mar 20, 2014

Mouldread :

My PSU is modular, I made my own cables using others that I spliced together. Went fairly well, and could be done by almost anyone with good dexterity.

hunter315 · Mar 20, 2014

The Elite Power and Elite Power V2 are NOT 500W PSUs, with a combined 12V rail capacity of 360W, that is what you expect on a 430W unit. Your PSU physically does not have the capacity to power a GTX 770, it will die...
http://www.coolermaster.com/powersupply/office-home-elite-power/elite-power-v2-500w/

Jaxem · Mar 20, 2014

If a PSU doesn't provide enough PCIE power connectors, it's an indication of sorts that the manufacturer didn't think it could handle more. I'd get something a little beefier that is made to handle that card. CM PSU's aren't great to start one, to stress one out would be asking to fry your awesome new GPU. The PSU is one of the things you should pay extra for to make sure you get bulletproof quality...otherwise you may end up very, very sad someday.

Hello man · Mar 20, 2014

Jaxem :

Try Seasonic or Corsair.

Jaxem · Mar 20, 2014

Hello man :

Jaxem :

Try Seasonic or Corsair.

Exactly.

Hello man · Mar 20, 2014

Jaxem :

Hello man :

Exactly.

:lol: And I use a Rocketfish! (Actualy the Huntkey X7 900W, a clear anomaly from another universe where Huntkey makes good PSUs) :lol:

Bennybo100 · Mar 20, 2014

Jaxem :

Thanks for all the help Jaxem and everyone else! So I've thrown my stats into some power consumption calculators (I guess it would've been much wiser to do this before buying the parts

) and found that most of the suggestions are indeed higher than 500W.

The main bulk of my specs are:

GTX 770 2gb OC
Intel i5-4670K
250gb SSD
1TB HDD
8gb memory
Hyper Evo 212

Bearing this in mind, would you say a 650W supply is sufficient? If I attempt to overclock the CPU at some point in the future would this still cover the consumption?

Thanks again, Ben

Jaxem · Mar 20, 2014

Bennybo100 :

Jaxem :

Thanks for all the help Jaxem and everyone else! So I've thrown my stats into some power consumption calculators (I guess it would've been much wiser to do this before buying the parts

) and found that most of the suggestions are indeed higher than 500W.

The main bulk of my specs are:

GTX 770 2gb OC
Intel i5-4670K
250gb SSD
1TB HDD
8gb memory
Hyper Evo 212

Bearing this in mind, would you say a 650W supply is sufficient? If I overclock at some point in the future would this still cover the consumption?

Thanks again, Ben

It depends somewhat on the PSU, you need to make sure you have enough amperage on the 12v rail for the GPU and low quality "650 watt" PSU's can put out quite a bit less (more like a 530 watt with a momentary 650 watt peak capacity). But assuming you get a good quality one, that should be just fine for current setup and overclocking for sure.

Hello man · Mar 20, 2014

Bennybo100 :

Jaxem :

Thanks for all the help Jaxem and everyone else! So I've thrown my stats into some power consumption calculators (I guess it would've been much wiser to do this before buying the parts

) and found that most of the suggestions are indeed higher than 500W.

The main bulk of my specs are:

GTX 770 2gb OC
Intel i5-4670K
250gb SSD
1TB HDD
8gb memory
Hyper Evo 212

Bearing this in mind, would you say a 650W supply is sufficient? If I attempt to overclock the CPU at some point in the future would this still cover the consumption?

Thanks again, Ben

650 is good, I pulled a "go big or go home" and got a 900W. If you are intending to get another 770 and SLI (Super Loads of Insaneness) get somewhere around 700-850W.

Mephikun · Mar 20, 2014

I would suggest either of these PSUs. The first, cheaper one if you just need something to power your computer and you don't care about it being modular and being 80+ Bronze certified and not Gold. The second one also has a bit more wiggle room in terms of power. These are well built units that are built by Seasonic.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 650W 80+ Bronze Certified ATX Power Supply ($64.99 @ NCIX US)
Total: $64.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-20 22:40 EDT-0400)

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX ProSeries 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX US)
Total: $99.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-20 22:41 EDT-0400)

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