ok I bought a GTX 750 Ti OC it does have the 6pin power slot, however my PSU is 300 watts but my PC will not recognize the GPU

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jaynvegas

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May 4, 2015
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I ordered a SATA to 6 pin PCI power adapter. is this going to fix the problem? or is it something more significant than that?
 
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jaynvegas

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i saw that just now i havea delta electronics 300 watt that is not going to do it even with the cable? i called ASUS and HP and they BOTH told me it would be compatible. I am about to get really PO'd if it does not work
 
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Cristi72

Cristi72

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Hello,

Even with an additional PCI-e power connection, the 750Ti OC will not consume more than 100W. It all depends on how old and how fit is your PSU, it should have at least +12V/20 Amps rating. What CPU do you have?
 
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jaynvegas

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20150504_115358_zpscs45j3m0.jpg
it is a brand new system with an i5 quad core it does have the +12/20 amps on the PSU is it really going to need the 400 watts?

here is the PSU will it be enough?
 
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Cristi72

Cristi72

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It's definitely something wrong with that PSU: it has 2 x +12V rails, capable of a theoretical 28 Amps (336W), but only total 300W rating (the other rails included)... If you don't have lots of HDDs/SSDs/DVD drives, the GPU should work, but I strongly suggest going for another PSU.

Being an HP, I guess the first rail (12Amps / +12Va) is dedicated to the CPU (it's internally wired only to the 4-pin CPU plug), while the second rail (16 Amps / +12Vb) is taking care of all the other connectors.

 
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jaynvegas

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so you think it will work? or do i need to just go with a 300 watt card. i dont want to but i can

CORSAIR CX series CX750 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

80 bucks for this though i dont know how hard it is to install though
 
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ffg7

ffg7

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Apr 7, 2015
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the CORSAIR will work but we need to know the make & model# of the hp to make certain the new psu will fit in tho I think it will? is not hard to install new psu as you just do the reverse of what you do when you take out the old psu.
 
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jaynvegas

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May 4, 2015
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well i just received the SATA to 6 pin adapter and tried it with the same power supply. it works just fine getting over 60 FPS no problem. now i am wondering if i should just keep it as it. will it harm anything? it seems to be working awesomely
 
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