Questions about using a fanless Minja in an Antec NSK 2480

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reshaleph
Posts: 6
Joined: Fri Feb 26, 2010 3:27 am
Location: Israel

Questions about using a fanless Minja in an Antec NSK 2480

Post by reshaleph » Thu May 20, 2010 2:09 pm

Hi,

I am trying to build a gaming machine that doubles as a "silent" HTPC. Strange, I know. My setup includes a Core i3-530 (TDP 73 W) and a Radeon HD 5770 (TDP 108 W).

Anyhow, I know some people here have used a fanless "Minja" in the NSK 2480 (sitting next to a case fan), so I have a few questions if you don't mind:

1. Do you think the case fans (Scythe Slip Stream 1200 rpm) will be sufficient for cooling my setup?

2. If so, would it be possible to run the fans "silently" (at 770 rpm)?

3. Would overclocking the CPU be out of the question? I'd like to overclock it by some 20% without modifying any voltage, so it should still produce less heat than a 95 W CPU.

Thanks!

JamieG
Posts: 822
Joined: Fri Dec 26, 2008 10:31 pm
Location: Melbourne, Australia

Post by JamieG » Thu May 20, 2010 3:24 pm

I'm running a Ninja Mini fanless on my 4850e in my NSK2480, with only a single side exhaust fan at about 600rpm without any issues

I've only got a passive 3450 as a video card, so the heat from your 5770 might be a limiting factor.

You might need two side fans, particularly if you want to do a little bit of overclocking. Two fans at lower rpms is likely to be less noisy than one fan at higher rpms.

reshaleph
Posts: 6
Joined: Fri Feb 26, 2010 3:27 am
Location: Israel

Post by reshaleph » Thu May 20, 2010 8:14 pm

Thanks for the reply!

So basically, you're cooling a total TDP of 70 W (45 W for the 4850e, 25 W for the 3450) using a single 600 rpm fan. My system would run 2.5 to 3 times as hot, so I'm a bit worried. I'm hoping two 800 rpm fans will do the trick.

plympton
Posts: 229
Joined: Sun Mar 14, 2004 11:40 am

Post by plympton » Fri May 21, 2010 10:49 am

From my understanding, and idle i3 will be pretty cool, and an idle ATI card is normally pretty cool*, so at idle, you'll be OK. I'd recommend a 80-90mm fan on the Minja, and a single 120mm fan on the side of the case.

Also, a bigger concern is if you're open or in an enclosed environment - I put my 2480 into a cabinet, and was amazed at the heat produced in a few hours until I took a drill and bored a huge hole in the top.

* ATI cards vary in firmware implementation of PowerPlay - do your research accordingly. Some have it disabled, don't undervolt, etc..

Another thing to think about is have a High - Low switch (or software setting) on the fans - gaming == high, idle / HTPC == low.

-Dan

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