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500W enough for SLi?

M

metallicafan

[H]ard|DCer of the Month - May 2010
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I am thinking about ordering the Antec 500W Smartpower 2.0 power supply. I have no doubt this will be enough for my everyday gaming rig with a 7800GT. My roommate also has a 7800GT and i was wondering if this power supply would be good enough to run both of the cards in SLi. It would just be for a day or so as we would just be testing the gains and benefits of SLi.
Thanks
 
metallicafan said:
I am thinking about ordering the Antec 500W Smartpower 2.0 power supply. I have no doubt this will be enough for my everyday gaming rig with a 7800GT. My roommate also has a 7800GT and i was wondering if this power supply would be good enough to run both of the cards in SLi. It would just be for a day or so as we would just be testing the gains and benefits of SLi.
Thanks
Click to expand...
A little light for highend SLI, the TruePower II 550W is SLI Certified & under $100. ;)
 
Is there anyone who is currently running 2 cards in SLi along with the Smartpower 2.0 500W? I can get this PS for 60 bucks I really didnt want to spend much more.
 
34A on 12v is recommended for SLI, 18A per rail in case of dual 12v rails.
That PSU has dual rails, 17a and 19a. Should be fine, unless you have all the hot air in the case being sucked out by the PSU ;).
 
I had a NeoPower 480 and 6800GT's OC'ed to Ultra speeds. With the NeoPower my 12v rails sagged really low and OC'ing my A64 3800+ was out of the question. Granted that was a Newcastle Chip and probably used a little more power than the later 90nm part. Still, OC'ing was out of the question. It never would really do it. My 12v rails sagged down in the mid 11v range.

With the Enermax Noistaker 600Watt SLi, I don't have that problem. Even powering the rig in my sig.
 
RavenD said:
34A on 12v is recommended for SLI, 18A per rail in case of dual 12v rails.
That PSU has dual rails, 17a and 19a. Should be fine, unless you have all the hot air in the case being sucked out by the PSU ;).
Click to expand...

Thanks. Thats good to know. The case will have real good cooling in the form of about 3 120mm fans.


Not enough for highend SLI & OC'ing!
Click to expand...

Yeah. The CPU will not be overclocked. The graphics cards might have some minimal overclocking but no CPU / memory overclocks.


Anyone else use this PS or a simialr PS to run an SLi rig? thanks for everyones input.
 
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