I have a AMD Raedon 7950 graphics card which has two pcie 6pin sockets. My Dell computer has two Pcie 16 expansion slots (150w each, or 225w and 75w) and two Pcie cables (75w each).
All works fine, even when overclocking the card, when I use only 3 Sata hard disks and DVD drive and three other small pci expansion cards in the system.
However when I add extra Sata or USB3/Sata hard disks I get SMART failures on the extra drives when booting the computer, most likely due to insufficient power.
If I change this fast graphics card to a slower Nvidia GT440 which doesn't have Pcie cables I can run 8 Hard Disks simultaneously without any issues.
It seems to complicated to upgrade the existing 525w power unit. I would therefore like an additional external power supply to either run the the 2 pcie 6pins for the graphics card or run the extra 4 or 5 hard disks. I would prefer the hard disk running of internal power and the graphics card 6-pin cables on external power as internal power is more reliable and may prevent read/write errors on hard disks.
I have seen Asus has supplied small external power block for some graphics cards sold in multimedia kits, with two pcie 6pin cables for various graphics cards in case computer did not have Pcie cables. unfortunately I haven't seen these power blocks available to buy separately.
I don't want to use e-sata for hard disks, as although design for external use, they are much slower than direct Sata.
Anyone have ideas on a external small power block I can use to run the pcie 6-pin cables only for the Raedon 7950 graphics card.
Thanks.
All works fine, even when overclocking the card, when I use only 3 Sata hard disks and DVD drive and three other small pci expansion cards in the system.
However when I add extra Sata or USB3/Sata hard disks I get SMART failures on the extra drives when booting the computer, most likely due to insufficient power.
If I change this fast graphics card to a slower Nvidia GT440 which doesn't have Pcie cables I can run 8 Hard Disks simultaneously without any issues.
It seems to complicated to upgrade the existing 525w power unit. I would therefore like an additional external power supply to either run the the 2 pcie 6pins for the graphics card or run the extra 4 or 5 hard disks. I would prefer the hard disk running of internal power and the graphics card 6-pin cables on external power as internal power is more reliable and may prevent read/write errors on hard disks.
I have seen Asus has supplied small external power block for some graphics cards sold in multimedia kits, with two pcie 6pin cables for various graphics cards in case computer did not have Pcie cables. unfortunately I haven't seen these power blocks available to buy separately.
I don't want to use e-sata for hard disks, as although design for external use, they are much slower than direct Sata.
Anyone have ideas on a external small power block I can use to run the pcie 6-pin cables only for the Raedon 7950 graphics card.
Thanks.
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