changing SATA power to molex for GFX Card.Dell Inspiron

techguy · 29-12-2008 02:54PM #1

Hi There,

Im adding a 9800 GT to a basic Dell Inspiron pc that has no molex power connection for the graphics card..

I want to cut off one of the SATA power connectors and put on a molex connection.

I have added a diagram of what the wiring is currently like. I would like to convert the SATA power to a molex. There seems to be a problem because there are more wires on the SATA than the molex..What wires do I need to use? also there are 2 molex connectors on the GPU side but some of the wire are going to different pins on the 6 pin square connector..Do I need to plug in just one of these molex connections or the two of them?

Is there anything I need to know when converting the SATA to molex?

Thanks..

leninbenjamin · 29-12-2008 03:01PM

techguy wrote: »

Hi There,

Im adding a 9800 GT to a basic Dell Inspiron pc that has no molex power connection for the graphics card..

I want to cut off one of the SATA power connectors and put on a molex connection.

I have added a diagram of what the wiring is currently like. I would like to convert the SATA power to a molex. There seems to be a problem because there are more wires on the SATA than the molex..What wires do I need to use? also there are 2 molex connectors on the GPU side but some of the wire are going to different pins on the 6 pin square connector..Do I need to plug in just one of these molex connections or the two of them?

Is there anything I need to know when converting the SATA to molex?

Thanks..

why not just get a Sata to molex adaptor?

vibe666 · 29-12-2008 03:24PM

+1.

no shortage of them either.

http://shop.ebay.ie/?_from=R40&_trksid=m38&_nkw=molex+to+sata+power+adapter

pretty sure you could find one in the likes of peats or maplins if you didn't want to buy online too.

techguy · 29-12-2008 06:52PM

I have seen them alright but I just need to get the job done asap as its not for my pc and I wont be around in a few days to wait fo shipping..

Im trying to get a sata to molex wiring diagram on google to no avail..im just getting adapters for sale.. :-(

Any ideas?

techguy · 29-12-2008 07:19PM

ok, there are 2 molex connectors coming from the GPU do I need to connect two of these to a power source..?

From what I am getting online the colour coldes are:
Yellow:+12v
Black: GND
Brown:+3.3v

And it takes two of these so requires a total of 30.6volts..or is it just one of these connectors and only needs 15.3 volts?

Are these the only wires I need to connect and just match up the colours?

Thanks..

vibe666 · 29-12-2008 11:34PM

is it possible to see from some of the ebay pics?

will these help at all? molex pin1 is yellow and pin4 is red with 2 black com's in the middle.

techguy · 30-12-2008 02:20PM

Thanks for that its great but it's only the tip of the iceberg..I was doing a bit of research but the PSU is the problem, it's only 300W and can't provide enough current..I got a new PSU this morning with all the connections..

Thanks for the advice..

changing SATA power to molex for GFX Card.Dell Inspiron

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