Corsair HX620

n30_mkii

n30_mkii

n30_mkii

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31 May 2005
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Alfreton,Derbyshire
Hi I'm looking to add a second GPU to my machine, I currently have the above PSU, which has two 6pin GPU outs on it which are both being used to power my HD7950. There are some 5 pin feeds left I'm just wondering if there is anyway I can power a second GPU of of this power supply, looks like there is a possibility of a cable from a couple of 4 pins? Any advice would be appreciated
 
While you could use some molex to PCI-e adaptors I personally wouldn't. The HX620 launched in 2006 so that's coming on for 18 years ago now so how old is yours? If it's anywhere near that old I wouldn't put any additional stress on it and would actualy be replacing it.
 
pastymuncher said:
While you could use some molex to PCI-e adaptors I personally wouldn't. The HX620 launched in 2006 so that's coming on for 18 years ago now so how old is yours? If it's anywhere near that old I wouldn't put any additional stress on it and would actualy be replacing it.
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Not that old, but at least ten years or so, ok i'll take a look at something new then. Are there any main vendors I should be looking at that do 6 pin for my 7950 and 8 pin for newer cards, I'm sure everything is still modular these days a quiet?
 
If I was looking for a new psu right now I would be buying one of the Seasonic Focus Plus units. They are fully modular, gold rated, compact at only 140mm long and have a 10 year warranty. The pci-e cables come as 6+2 pins so that if you only need 6 pins you fold the extra two up out of the way. Most if not all psu's do this these days. The 750w version is a steal at the moment as it's the same price as the 650w version and seeing as you are looking at running a pair of cards would be the better option for you. This deal ends around lunchtime on Wednesday so don't wait too long.

What is this second card you are wanting to run? Just to make sure it's enough power. I take it this is a mining rig?
 
Funnily enough I have exactly the same PSU, which I think is on its way out (well it is 12 years old)

System is fine when running my old 7950, but when I put my fury x back in after I replaced its water cooling unit with an aftermarket cooler, windows just went crazy slow, like 5-10 seconds just to open window, or 5 minutes to restart. The fury was fine to start with, but left the machine mining for 30-40 minutes, came back and it was super slow. Took it out and put the 7950 back in and the system is fine now.

Ordered the above PSU might as well get something decent as I intend to upgrade fully in April so that's one thing I don't need to replace.
 
pastymuncher said:
If I was looking for a new psu right now I would be buying one of the Seasonic Focus Plus units. They are fully modular, gold rated, compact at only 140mm long and have a 10 year warranty. The pci-e cables come as 6+2 pins so that if you only need 6 pins you fold the extra two up out of the way. Most if not all psu's do this these days. The 750w version is a steal at the moment as it's the same price as the 650w version and seeing as you are looking at running a pair of cards would be the better option for you. This deal ends around lunchtime on Wednesday so don't wait too long.

What is this second card you are wanting to run? Just to make sure it's enough power. I take it this is a mining rig?
Click to expand...

Second card would be one of the following Vega 56/64 or RX 580/570 or a 1070
 
If you go down the Vega 64 route than you want more than 750w as it's a power hungry card. Some of the 7970's are bad enough, especially the Lightning versions which can see a pc pulling almost 600w at the wall with a single card. A Vega 64 and one of those would need a psu of 1000w+. Which 7970 do you have?

Is this for mining?
 
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