PSU only has PCI 6pin, NO 8pin! Can I use an adapter?

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frenchbread

frenchbread

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I have a Corsair HX620 power supply that I purchased back in February 2007. http://

I recently upgraded to a Gigabyte 770 4GB (coming from a wimpy 550Ti). The 770 requires 2 x 8pin power connectors. To my great disappointment, I discovered my older PSU only has 2 outputs for a single 6pin each. :heink:

My questions are:

  • -Can I use an adapter to get two 8pin connectors somehow?
    -Is it safe to use an adapter to get two 8pin connections on a PSU that doesn't even have them?
The PSU outputs are listed as: +3.3@24A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,-12V@0.8A,+5VSB@3A

I would hate to replace a good PSU considering even 8 years later it's still working well for me.

Thank you in advance for your assistance.
 
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ingtar33

ingtar33

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Dec 17, 2012
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you can use an adapter... however it's not advisable. typically if your psu lacks the plug it's because the psu can't supply the power. Besides we're talking about an 8yo psu. if your psu fails it can take pretty much everything in your system and if it's just not your day, it can burn your house down too.

i'm sure it works fine, but it's probably time to trade up.
 
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frenchbread

frenchbread

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So 8 years is a long time for a PSU?
It says MTBF is >100,000 hours which at 12 hours a day use (which I don't) is over 20 years. I also thought since it's 620w of power and I have an i5-3570K it would be fine?

But if you guys think I should just ditch it and move on I will. Better safe than sorry.
 
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ingtar33

ingtar33

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Dec 17, 2012
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I work in IT, there are 2 parts i am finding broken all the time.
1) Hard drives
2) PSUs

nothing else fails anywhere near as often as those two parts. I can't speak to the 7-8 year reliability of your psu. I do know around the 3-5 year mark (depending on manufacturer and product line) psu's start to fail at alarming rates. I have never used a psu in any of my rigs longer then 4 years. My policy is whenever a motherboard or gpu or cpu burns out on me, to replace the psu, because i don't know if the psu caused that damage. i'm sure i tossed out a bunch of perfectly functioning psus. But it's the one part you just don't "save". a bad psu can ruin your whole system, there littereally isn't a part in your system a bad psu can't kill. Worse, bad psus are actual fire hazards. So in my book the risk/reward of hanging onto a good psu as time goes by gets steadily less attractive over time.



 
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Y

yyk71200

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Here is review of a good 7-year old powersupply at Hardocp: http://www.hardocp.com/article/2015/03/09/silverstone_olympia_1000w_power_supply_7_year_redux/

Bottom Line: it is no longer in specifications when loaded substantially and can no longer deliver full wattage.
 
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frenchbread

frenchbread

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Sorry for the delayed reply. It's been a busy couple of days for me.


Thank you both for your replies. Since not one person said "It should be fine, get an adapter," it doesn't seem worth taking a risk when I've already been warned by you guys. Even if my PSU worked fine for another 2-3 years, the chance of me remembering to replace it before it fails on its own is pretty low.

So in regards to PSU shopping. The more I look, the more questions I have. I might just have to do some more reading and maybe start a new thread for advice.

Thanks guys.
 
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