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URGENT Connecting gtx 750 ti to 550w psu using molex 6 pin y cable


Best Answer phickspc , 26 May 2016 - 11:59 AM

Thank you. I found a 6 pin plug available hidden under other looms in my pc. I connected and it works. The new gpu has 2 fans. The previous one had none. Ironically, heatsink fan is now very noisy. Go to the full post »


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#1
phickspc

phickspc

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Hi

I want to upgrade gpu but not psu.

I bought an asus gtx 570 ti card. It needs a 6 pin but my 2008/9 old HCE 550 TD PTE psu does not have one.

So I bought this cable which has 3 ends; a 6 pin, a 3 pin and a 2pin. Looks like the photo on the product page but one of the 4 pins actually shows 2 physical pins.

http://www.pcworld.c...885888-pdt.html

 

But I don't know how to connect it?

1.6 pin goes into gpu.

2. Do I connect the 4 pin (with 3 actual pin connectors) to any unused female molex?

Or does this short 10cm cable have to go directly to psu?

3. Where does the other 4 pin (with 2 actual pin connectors) go?

Does it need to be connected?

 

 

Thanks


Edited by phickspc, 25 May 2016 - 03:31 PM.

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#2
iammykyl

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Gday phickspc.

Please let us know if there are any issues like, blue screen, blank screens or shutdown when playing games.

Before beginning.

Switch off the PSU, press and hold in the case power button for ten seconds, ground yourself by touching a bare metal part of the case. 

 

On this video, adaptor 4 is the one you have.   When he connects the Molex to the PSU, he connects both Molex plugs to the same PSU cable, better option, if your PSU has two separate Molex cables, connect one plug to each cable then the 6 pin to the GPU. 


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#3
phickspc

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✓  Best Answer

Thank you. I found a 6 pin plug available hidden under other looms in my pc. I connected and it works. The new gpu has 2 fans. The previous one had none. Ironically, heatsink fan is now very noisy.


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#4
iammykyl

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Remiss of me not to get the specs for your PSU, I then could have told you it had a 6 pin PCI-E cable.

Have you got the name right for the GPU, Pleas post a link to where you baught it.   According to this review, you need 2 PCI-E cables, "The card requires one 6-pin and one 8-pin PCI-Express power connector"

https://www.techpowe...ct_Cu_II/4.html

 

The CPU fan being louder.

Could be due the the GPU pumping more heat into the case, raising the case temp, then the CPU cooler is getting hotter air and has to speed up to cope.

You may accidentally have disturbed the CPU heatsink, so check it is still properly seated.   Also make sure the cooler fan and fins are not clogged up with dust and gunk.


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