PCI-e USB Card kills power to the PC

mccannf

Honorable
Sep 26, 2013
1
0
10,510
Hi there.

I have an old Dell Inspiron 530 with a PSU that is 300W (+12V / 18A, -12V / 0.8A, +5V / 22 A, +5VSB / 2A, +3.3V / 17A). It is already connected up to a DVD RW drive and a HDD. There is a Sapphire Radeon HD 2400 graphics card in the PCI-E x16 slot.

I bought a PCI-E USB 3.0 card off Ebay, along with a SATA 15-pin to Molex 4-pin cable. I plugged in the card, and connected up the card using the adapter cable to the sata power cable daisy-chained off the HDD.

I started up Windows and installed Renesas 3.0 USB host drivers with no problems.

My problem is that when I go to insert a USB 3.0 key into one of the USB slots, the power on the whole PC dies.

Any suggestions as to what I should do?

PCIe card is here: http://res.cloudinary.com/fierytech/image/upload/v1380204006/usb3_pcie_card_hthjbo.jpg