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Molex to PCI-E Power Connectors

Last response: in Components
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April 17, 2011 10:04:03 PM

Pretty simple question - are there any issues with purchasing molex to PCI-E power connectors if you current PSU doesn't have the right connectors for your video card?

Example: http://www.atxpowersupplies.com/Molex-to-PCI-Express-Ad...

Now I understand there might be wattage, or amperage problems ... but those aside to the connectors work, are there problems?
a c 164 ) Power supply
a c 235 U Graphics card
April 17, 2011 10:08:31 PM

they are not ideal but they work fine. I used one to power a 9800GT in a DELL unit, used another to power a 9600GT in another DELL unit.
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a c 121 ) Power supply
a c 191 U Graphics card
April 18, 2011 3:00:56 AM

Your final statement is the key point. Electrically, those adapters are fine, but if you need to use them, odds are high your PSU isn't up to powering whatever you want to attach. If you have something like a 380W Antec Earthwatts, you could run a GPU like a GTX460 or HD6790 without problems, but if you've got an older unit (e.g. anything with a little voltage switch on it), you probably don't want to take the risk.
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April 18, 2011 10:32:12 AM

Onus said:
Your final statement is the key point. Electrically, those adapters are fine, but if you need to use them, odds are high your PSU isn't up to powering whatever you want to attach. If you have something like a 380W Antec Earthwatts, you could run a GPU like a GTX460 or HD6790 without problems, but if you've got an older unit (e.g. anything with a little voltage switch on it), you probably don't want to take the risk.


I bought the wrong power supply - no fault but my own it was stupidity and not thinking. I had a power supply, it died and I made a choice in 5 minutes in store without doing any research.

The power supply I have is a Corsair TX 650 - it has 52 A on a single 12v rail. There is lots of power to be had and it's sufficient power for what I want to do, which is crossfire my AMD 5870.
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a c 121 ) Power supply
a c 191 U Graphics card
April 18, 2011 11:55:15 AM

Oh, well then in that case you're in the clear.
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