Zalman Reserator 1 V2 for non-OCed setup?

[SoundBlaster]

Good Day

My objective is to establish completely passive gaming PC setup, no extra fans other than the ones with PSU and the case, of course both incorporate the most silent fans.

I found Zalman Reserator 1 V2 to be the most perfect passive liquid cooling system.
I’ll replace the stock pump with high performance Swiftech MCP655-B
The Reserator will be used to cool two EVGA GeForce GTX 580 FTW Hydro Copper 2 SLI set up and Intel Core i7 CPU.

My alternatives for this set up are:

1. One Reserator setup for both CPU and GPUs
2. Two Reserator each for CPU & another for GPUs
3. Two Reserator the whole setup are connected into one loop


Which option can be used and enough for my above setup? Moreover, what are the safest max. temp to insure running this set up at stable condition, assuming the room temp is 28C ?

Note, I will not perform any sort of overclocking of GPUs and CPU,I'll use only the (stick) reference clock.

 

[Zinn]

Can that thing really handle two GTX 580s and an i7?

Safe max temp is pretty much anything under 90C on both the CPU and GPUs. GTX 5xx series will start to throttle at 95C.

 

[SoundBlaster]

So, would under-clocking GPU be helpful in maintaining temp@ 80C ?

 

[Jbort1984]

if nothing is oced you will prolly run warm with that but if you can find the added fan to it that goes over the top there silent unless you put your ear to them you will be running cool even under high stress