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670 sli psu

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September 30, 2013 2:40:03 AM

Hi guys do you think my corsair tx 750 bronze will be good enough for 670 sli

Thanks very much

More about : 670 sli psu

September 30, 2013 2:54:29 AM

Yes.

What are your other specs though?
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September 30, 2013 3:10:22 AM

X79 said:
Yes.

What are your other specs though?


I am running a 3770k @ 4.4.

16Gb corsair vengeance

128ssd

2x500gb Seagate 7200rpm had

H100i cooling

6 x 120 fans @1200 rpm

And sound blaster zx


I filled that thing in and it says 603 needed
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September 30, 2013 3:29:13 AM

Hi!

I am running 2 OC'd 670's in SLI as well as an OC'd 8350. I am hitting around 700W TDP along with all my other system specs listed when you hover over my avatar, so im certain you will be able to run all that on a 750W, although a bigger PSU does leave you breathing room for future upgrades. =)
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September 30, 2013 3:37:23 AM

u_gonna_squeal_b4_we_cookya said:
DE4TH_NOTE said:
X79 said:
Yes.

What are your other specs though?


I am running a 3770k @ 4.4.

16Gb corsair vengeance

128ssd

2x500gb Seagate 7200rpm had

H100i cooling

6 x 120 fans @1200 rpm

And sound blaster zx


I filled that thing in and it says 603 needed


I think you will be ok with the TX 750 considering it is 80-plus bronze rated and made by a decent manufacturer.

Was the 603w the minimum needed or the recommended? Usually, they add 15-20% to allow for some headroom and the rare possibility of the CPU running at 100% which never happens outside of stress testing. Also, did you factor in the 4.4 GHz overclock and increased CPU voltage? Even if you didn't and if the 603w wasn't the recommended, you should still be below 750w. Remember, though, that 80-plus bronze means that your PSU is only guaranteed to provide 82% of its rated power when under 100% load. These figures are also dependent on the temperature of the unit. So if the TX 750 is running at full blast in ideal operating conditions and putting out the bare minimum of its official rating you are only getting 615w or 82% of 750w. Having 2x GPUs pumping heat out right next to the PSU could effect the efficiency even more. These conditions are rare but if you also factor in capacitor aging, in a few years you could be the occasional blue screen when your CPU and GPUs are running at 80-90% load. This is why many recommend PSUs well above the required wattage.


That was needed 603 so it said 700 rec , I also put it to 100% load to be sure, I DoD also put the 4.4 oc on,
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September 30, 2013 3:56:23 AM

I am also running a SLI GTX 670 setup with a i5 3570K OC to 4GHz
16gig DDR3
6 3tb WD HDD
2 SSD's
Creative Sound Blaster Z
5 white LED case fans plus 3 more on my 360mm Rad
and am running a Rosewill Lightning 800w and have not had any problems.
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