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Author Topic: Sapphire PURE Black AMD 990FX ?  (Read 1180 times)
Olly_K
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April 21, 2012, 06:40:23 PM
 #1

anyone had any experience with this board ?

Looking to get 5 pci-e 16x extenders for it and have a couple of questions....

Does it support more than 4 GPUs?
If I connect up the onboard molex connector, I shouldn't need powered risers, right ?

Thanks !!
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scifimike12
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April 22, 2012, 02:10:43 AM
 #2

Why don't you get a 990FXA-GD65.  It may not have six x16 PCIe slots but it does have six PCIe (x1 and x16) slots.  Also has PCIe auxiliary power instead of Molex which is a little better.
ssateneth
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April 22, 2012, 09:45:33 AM
 #3

For the purpose of mining, don't really bother with having as many 16x slots as you can. Instead, go for max amount of PCI-E slots, or 4 max if you intend on using dual GPU cards such as 5970/6990/7990, and using 1x > 1x pci-e ribbon cables since 16x > 16x dont bend very well and can break. I had 4 16x > 16x and they all eventually broke (places where the pins solder on broke). Now I use 1x > 1x and my cards are happily mining away. I had to short presence pins on all slots that I had 1x > 1x ribbon cables in but it's fine with me.

Right now there is a 6-slot board on newegg for $110. http://www.newegg.com/Product/Product.aspx?Item=N82E16813130565R

BTW if you DO decide to use 1x > 1x cables, you'll very likely need to file off the end of the slot to allow plugging in a 16x. Had an extra 1x > 1x lying around still in the bag to show a before/after.

Olly_K
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April 22, 2012, 09:54:00 AM
 #4

thanks for the replies - I'll look into the 990FXA-GD65. Looks good.

Didn't really want to be messing around with cutting risers and stuff, just want to plug and play so maybe some 1-16x risers are on the agenda.

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