Can I crossfire two Sapphire Radeon HD 7870 GHz 2GB with this motherboard?

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07ChardieMak18

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Nov 30, 2013
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This is my motherboard:
M4A88TD-V EVO/USB3

Another question:
Is 630 watts good enough for my PC?

AMD Phenom II X4 970 3.50GHz
Sapphire Radeon HD 7870 GHz 2GB
 
Solution
markwp
It might, but if it were me I would upgrade the psu. Two 7870's need ~350w. Your psu has 2 12v rails, each of which is supposed to supply 22a (~265w each).

If the raidmax is 80% efficient, you would have roughly 212w per rail available. Each card needs 175w. When you add in the power requirements of your other hardware, I personally think you would be past the limit of the psu.

What you really need is a good, solid psu from Corsair TX, Antec, Season or XFX that is a single 12v rail with at least 50-55a available.

Mark
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07ChardieMak18

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Nov 30, 2013
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10,530


My PSU is RX-630SS ATX PSU
 
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markwp

markwp

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Jan 22, 2013
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It might, but if it were me I would upgrade the psu. Two 7870's need ~350w. Your psu has 2 12v rails, each of which is supposed to supply 22a (~265w each).

If the raidmax is 80% efficient, you would have roughly 212w per rail available. Each card needs 175w. When you add in the power requirements of your other hardware, I personally think you would be past the limit of the psu.

What you really need is a good, solid psu from Corsair TX, Antec, Season or XFX that is a single 12v rail with at least 50-55a available.

Mark
 
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