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GTX 660 SLI QUESTION - Page 2

post #11 of 28
Quote:
Originally Posted by Aesthethc View Post

Not ALL NZXT PSU's have bad ripple under load; please link me to the review that says that says all NZXT PSU's have bad ripple.

Are you sure youre not referring to the cheaply made NZXT HALE82?

http://www.hardwaresecrets.com/article/NZXT-HALE82-N-650-W-Power-Supply-Review/1565/11


The PSU that OP has is the NZXT HALE90

http://www.hardwaresecrets.com/article/NZXT-HALE90-V2-850-W-Power-Supply-Review/1750/10

It has pretty solid ripple on the 12v and doesnt seem like a bad contender like its cheaper counterpart, the HALE82. The HALE90 is a gold unit and the HALE82 unit is a bronze. Big difference there too. Unlike the HALE82, the HALE90 is also based off FSP PSU's, also previously made with Super Flower PSU's.

On load distribution; it maintained well above 88% efficiency

http://www.hardwaresecrets.com/article/NZXT-HALE90-V2-850-W-Power-Supply-Review/1750/8

Please do not make blanket statements about all PSU's. If you are not sure; double check before posting misinformation on a public forum like this smile.gif

IF OP is looking for a good power supply; check this out http://www.overclock.net/t/183810/faq-recommended-power-supplies/0_30

The NZXT HALE90 V2 should be enough for his setup; a little more than what he needs; but honestly an efficient 650W PSU should do the job here. I had two 670's overvolted to 1.212v and an i5-2500k (higher TDP than the 3770k OP has) and i was using a 650W Rosewill Capstone and it was definitely enough.

Those 660's pull around 250W on full GPU stress. Probably less most of the time; this is like 100% usage. The CPU will probably pull less than 100W and you still have plenty of wattage left for fans, even a 20W pump if you plan on going custom water cooling.

I had this whole set up on 650W; so honestly OP if you buy a 750W or 850W youre going to be wasting your money on extra wattage you wont even be using. (If you dont like your current PSU).

If you DO like it; then i say just stick with it. Its a pretty decent PSU that isnt like the cheaper counterpart; HALE82.

Also: 1000W Is INSANE OVERKILL. You dont need a 1000W PSU for this. I had two 670 FTW's (680 PCB's) and a 2500k overclocked and 650W was enough (even with a full water cooling set-up with an MCP35X pump)

your are correct I was refering to the Hale82
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post #12 of 28
one 660 draws around 140W according to nVidia
http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-660/specifications

with modded bios you can max it to 150W, so I agree that a quality 650W psu should be enough.
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post #13 of 28
Thread Starter 
Alright, go to the shower and come back, suddenly there's a novel tongue.gif


But I do like it, though if there is something more efficient with better cables, I'm all ears, as long as I can make it match up to the color scheme somehow (That's the big issue right now)

Also, with this SLI setup, how much vram will I actually be able to use in the end?
post #14 of 28
Thread Starter 
http://ocz.com/consumer/psu/silencer-mk-iii-power-supply


How about that?
It's not on Newegg so I don't see the reviews, but there was an OCZ PSU on the list you linked, though I find this one.
post #15 of 28
vrams don't stack up and needs to be identical for SLI.
how bout this psu http://anandtech.com/show/7761/seasonic-s12g-650w-power-supply-review/4
it's not modular though.
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post #16 of 28
Quote:
Originally Posted by destrano1 View Post

Alright, go to the shower and come back, suddenly there's a novel tongue.gif


But I do like it, though if there is something more efficient with better cables, I'm all ears, as long as I can make it match up to the color scheme somehow (That's the big issue right now)

Also, with this SLI setup, how much vram will I actually be able to use in the end?

Are you trying to go with a certain color theme? That might make it slightly harder; as not many of the better PSU's are going to be white. Theyre probably going to be black. If you want it to be white; have you considered buying some White 3M Di-Noc Carbon Fiber Vinyl wrap and then wrapping your PSU in that? Theyre like 20 dollars a roll of 4ft on ebay.

Currently there isnt a program to accurately describe how much VRAM you are using, but it can estimate how much your computer is allocating. It also depends on your work load and how strenuous it is on your VRAM.

The 660 you have is a 2GB based on a 192-bit memory bus; which is as slightly lower bus than we see on NVidia cards loaded with 2GB; i assume this was done in the architecture to lower design cost with a slight sacrifice in video memory performance. We most commonly see 256-bit memory bus on a 2GB NVidia card. Useable VRAM with the given memory bus will be around 1.5GB-2GB on the 660. We dont always see 192-bit memory bus design on all NVidia cards; last time we saw a 192-bit was on the 550ti at 1GB.

Also; VRAM is mirrored. So even if you have two cards in SLI you'll still have the same amount of VRAM that you had on one card. Your video card reads the VRAM as a mirror. Also; what eats your VRAM is mostly higher res textures and anti-aliasing in games that are very heavy like uubersampling or Multi-Sampling Anti Aliasing.

If you want some PSU's to look at, check out that link i sent you that was labeled "OCN Recommended PSU's"
post #17 of 28
Thread Starter 
Yeah I just noticed the one I linked is also not fully modular, that's what I'm looking for, I've had half modular for a long time now and it's really beginning to bug me.

How about this one?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151121
Edited by destrano1 - 3/2/14 at 2:04pm
post #18 of 28
Quote:
Originally Posted by destrano1 View Post

Yeah I just noticed the one I linked is also not fully modular, that's what I'm looking for, I've had half modular for a long time now and it's really beginning to bug me.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088

This is probably your best bet for fully modular. It is not white though. NZXT seems to be unique with having White PSU's
Quote:
Originally Posted by destrano1 View Post

How about this one?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151121

Yeah that one works too. The platinum will have better efficiency than your gold unit and has a hybrid-fanless design -- if you want to go with cheaper the Gold unit will do as well. Both fully modular.
Edited by Aesthethc - 3/2/14 at 2:07pm
post #19 of 28
Thread Starter 
I have been checking out that link, I've found a few, only white one I found was the OCZ one though, and it was only half modular.

But yes, I posted the picture earlier in the thread, that is the scheme I am working towards, it doesn't need to be exactly like the picture, I want my own twist, but that's the inspiration.
post #20 of 28
Thread Starter 
Quote:
Originally Posted by Aesthethc View Post

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088

This is probably your best bet for fully modular. It is not white though. NZXT seems to be unique with having White PSU's.


Yeah, I've noticed, it's unfortunate really, I love white, it makes things stand out in my opinion, though to each their own.
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