do i plug in both 4 pin connectors

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George Sligar

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Oct 17, 2013
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I got a new power supply that has a 20+4 pin mobo plug and a separate 4pin mobo plug. I attached it without the +4 pin using only the 20 pin connector and the separate 4pin connector as was the setup with the lower wattage PSU. However the mobo jack has 24 pins available (the +4 is empty) Do I use BOTH 4pin plugs or stick with it the way it is? Also would that have anything to do with why the PCI-e graphics card i got wont work?
 
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There should be a 20+4 pin connector to plug into the side of the motherboard. There is also a 4/8 pin connector that will plug in the top of the motherboard above the cpu. Now there are PCIE connectors. These are either 6 or 8 pin and plug in to the pcie card (graphics cards for example). If your motherboard has a 24 pin connector then you plug in all 24 pins. If it has an 8 pin above the cpu then you should plug in all 8. Knowing which motherboard you have will let us know what you need to plug in.
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wanderer11

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Jun 11, 2012
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There should be a 20+4 pin connector to plug into the side of the motherboard. There is also a 4/8 pin connector that will plug in the top of the motherboard above the cpu. Now there are PCIE connectors. These are either 6 or 8 pin and plug in to the pcie card (graphics cards for example). If your motherboard has a 24 pin connector then you plug in all 24 pins. If it has an 8 pin above the cpu then you should plug in all 8. Knowing which motherboard you have will let us know what you need to plug in.
 
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George Sligar

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Oct 17, 2013
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10,510
It is a Compaq Presario SR1603WM circa 2005...
The Mobo is Asus A8AE-LE (HP calls it Amberline...).
I saw a similiar post after I asked and went ahead and plugged in the +4.. It still works but made no difference for the graphics card (Power Color Radeon HD5450) I have seen elswhere that it is simply NOT compatible with my computer.
The Computer came with Win XP but I have been using Win 7 for some time now with no problems but I wonder if that may have something to do with the graphics card compatibility issues Im having. There are no Win 7 drivers for this setup but Vista drivers seem to be working fine so far.
I have started looking for older/used graphics cards but am having trouble finding PCIex16 -1.x and I m afraid 2.x wont work either. (the one I tried was 2.1)
The reason for the upgrade is I got a webcam and the onboard graphics keeps crashing, although it does restore itself after a few min.
But with only 64mb dedicated to graphics (1311mb total?) I was hoping I could do a little better.
Any suggestions on a compatible graphics card would be appreciated.
Thanks!
 
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