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power supply question

J

jmg874

n00b
Joined
Jan 30, 2011
Messages
10
So, I just recently fried a 6970 in a way I won't explain. I am buying a new graphics card and considering a 6990, my end goal being 2 6990's and something like a GTX-580 for dedicated phys-x. my question is; is my current power supply enough to handle that graphics configuration considering my current setup? My current setup (minus video card) is:
Antec HCP-1200
gigabyte 890-fxa-ud5
Phenom X6 1090t
OCZ Reaper (4x2gb) DDR3 1600
4x western digital Sata 6.0gb/s 1.0 TB drives
1x dvd-rw drive
swiftech mcp-35x pump
case has a total of 6 fans (5x120, 1x240)

let me know what you guys think.

Thanks
 
You won't be able to pull 3 cards from your current platform. That psu will handle 2 6990. The 580s has a current limiter chip so it will reduce its clocks when your psu is running low on juice but like I said you won't be able to pull 3 cards on your current platform
 
2- 6990's would be cool, but $500 for a marketing ploy? It is your money, but IMO phys-x is not worth it.

Also your cpu will probably be a bottleneck and going for more than one card is only advantageous if your are going to use 3 monitors for eyefinity.
 
yeah, the reason i said end goal is I plan on having this in a year or so when prices go down and graphics requirements go up. I figured I'd buy 1 6990 now, (i only have 1 27 in. monitor at the moment.) and in a year or year and a half i'd buy another 6990 and 2 more 27 in displays to run 5760x1080. at that time i would also consider buying a 580 to add as dedicated phys-x, but if my psu can't handle it and you guys don't think phys-x is worth it, then i may just avoid phys-x all together. with my mobo i can fit 3 graphics cards, would another configuration be better, like a 6990 and 2 6970's? is that even possible? I'm not doing most of this right away, just trying to plan what it will be in a year or so.

thanks for the fast replies! :D
 
Uhhh... current limiter chip? That's purely for furmark/other stress tests, it cannot detect what power supply is being used, and how much current is going through the power supply. Complete BS right there. Currently, there is absolutely NOTHING on the market that tells the computer how much power it is pulling from the power supply and how much the power supply can handle.

Theoretically, it is possible to do that. 375 watts per 6990 = 750 watts (non overclocked). 150 watts for processor (mild overclock), and 250 watts for the 580. The remaining 50 watts is usually enough for the motherboard, hard drives, and fans.

However, physX (even at maximum levels) cannot even take full advantage of a GTS 250 99% of the time. Much less the ultra-powerful GTX580. The only reason to get a 580 over a lower card like the 450 is for pure bragging rights.
 
That PSU would be enough, but a GTX 580 for PhysX alone would be a complete waste of power and money.
 
good to know, thanks for the info. If I go that route I'll make sure to pick up something like a 450.
 
I would wait to buy anything until you see some really good reviews on 6990 Quad Crossfire. To date Quad Crossfire hasn't been very good, but I've not seen any 6990 data yet.

Also.........Physx is a suspect utility.....I would not waste time or money on it unless it suddenly improves.....
 
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