What radiator for 2 GTX 295 co ops?

[Jon K]

What if you were going to cool just two 295 co-ops, what radiator would you use? I was hoping for like a MCR220, but I am not sure if its enough.

[Kanzy]

I don't think one MCR220 can do the job, maybe an MCR 320? just maybe work

[NaeKuh]

just assume heat load...

Assume the average 295GTX has a TDP of: 289W.

TDP is max power draw @ given settings, so we can use this number as MAX possible Heat.
(its ok to overestimate.. but bad to overshoot, this is why were just overestimating.)

So u have 2 cards each doing about 289W of heat = 580W of heat total.

MCR rules in general is 150W per 120x1 fan size you want to hold.
So u would technically need a MCR420 to keep a relatively good ambient / coolant value. However since this is a GPU and not CPU, u can go down 1 size.

So i would recomend at the lowest, a MCR320 for 2 x 295's.

[Kanzy]

Hey can u do the same method for xspc rx360 and two gtx 285 I would love to know

[Jon K]

Damn - is it even worth it then? Not sure how I can mount two MCP320's to my case

[Aphellyon]

@Jon K... Why do you say "2" MCR320s?

[Jon K]

I already have 1 MCR320 working my i7 920 and X58 Classified chipset

[millertime359]

You could always hang one off the back of the case. I would say it is worth it. If the stock air coolers on those 295s are anything like the 260s. It will be worth it.

[Aphellyon]

I already have 1 MCR320 working my i7 920 and X58 Classified chipset

Ahhh... gottcha.

How's that working for you... temps, clocks?

[Jon K]

Ahhh... gottcha.

How's that working for you... temps, clocks?

Well I havent got into OC'ing yet. Still ironing out that my system is good to go. Built it just last Friday. Right now I just booted it up maybe 12 mins ago, installing Office 2k7, and the EVGA Control Panel for X57 classified says 26C.

[Aphellyon]

What block are you using on your board?