Single rad for heavy OC?

[nullface]

I want to make a small waterbox that is highly mobile and has good cooling kapacity.

I have been looking for some singel rad+fan combos, but im not sure if they can handle a heavely OC'ed dual or quad core (my first thougt was hell no, singe? no way).

But... a BIX GTX 120 + a Delta EHE, couldent they maby do the trick?
Or a NF-P12 for 24/7 DC OC?

Or is ther just no way in hell a single can handle a 4GHz Wolfie?

[YMAA]

I want to make a small waterbox that is highly mobile and has good cooling kapacity.

I have been looking for some singel rad+fan combos, but im not sure if they can handle a heavely OC'ed dual or quad core (my first thougt was hell no, singe? no way).

But... a BIX GTX 120 + a Delta EHE, couldent they maby do the trick?
Or a NF-P12 for 24/7 DC OC?

Or is ther just no way in hell a single can handle a 4GHz Wolfie?

How small does this thing have to be? A 240mm would be able to handle a quad, and it's not like they're much more expensive than a 120mm. Get an MCR220 or a BlackIce GTS 240, they'll give you a lot more cooling headroom than a single 120.

I guess a single 120 could theoretically do it, but you won't see any better temps than you'd see on air, it'd just cost more and have the same amount of hassle as other loops.

[madmaxx]

why not use a single H/C with shrouds (coolingworks) and high popwer fan/s?

or a PA160?

[YMAA]

A 120mm rad simply won't be able to keep up with the demands of a highly-OCed quad. There just isn't enough surface area to justify the move to water. I'd trust it with a G0 Kentsfield or maybe a Yorkfield at stock, maybe a slight OC assuming no voltage increase is required. But at that point, you might as well just go with a TRUE120 or an Ultima-90 and save yourself the money and effort. Really, a 120mm rad is no better than air, any 120mm rad from a BIP to an HE120.1/PA120.1 simply will not perform better than high-end air, because you're not adding much more surface area than a TRUE120 has, if at all.

The only way to get a 120mm rad to be convincingly better than a TRUE120 for a quad is if you ran the 120mm rad dumped in a vat of ice water or something cold. Seriously, it's not worth it.

[madmaxx]

have you ever used a PA160 or H/C?

[nullface]

What is a H/C?

[b@llz0r]

I was surprised that my alphacool 120mm rad could handle 2 overclocked 8800 ultras... thats gota be more load than one ocd processor... I say go for it :thumbsup:

[Shaotai]

What is a H/C?

H/C = Heater Core

Back in the day, before we had specifically designed water cooling radiators, we used automobile Heater Cores as rads. They generally worked quite well and were small enough to fit in cases, etc.

They were also pretty cost effective. I had one in my old cheiftec tower case. with a shroud and 120mm fan. It was a great setup! :p:

[YMAA]

I was surprised that my alphacool 120mm rad could handle 2 overclocked 8800 ultras... thats gota be more load than one ocd processor... I say go for it :thumbsup:

What are your load temps on both cards? And what temperature is the air are you using to cool them? The TDP on an 8800Ultra is higher than that of a Q6600 at stock, two of them are a lot of heat to disipate...

[YMAA]

have you ever used a PA160 or H/C?

I have not used either. As a matter of fact I've never watercooled. But a G0 Q6600 at 3.6GHz 1.38v has a TDP of about 180w. An HE120.1 can dissipate about 180w of heat under ideal circumstances. But the OP never mentioned how high he/she wished to overclock his/her quad, so I went for a comparatively low OC that air can usually handle to prove a point.

There's also the heat from the pump to think about, a Laing DDC 18w would probably put about 5-10w of heat into the loop as well.

I'm just saying the OP is cutting it close with a single 120mm rad, especially since an HE/PA120 costs more than some 360mm rads like the MCR320, which would certainly outperform either of them. If space is really an issue, go head and try it. But if a 240mm rad will fit the bill, I would go with that to give yourself a little (lot) more headroom.

[madmaxx]

that's why i suggested a PA160 or H/C (heatercore), roughly same size as 120.1 but performance closer to 120.2 :up:

if looking at H/C i suggest the chevette style http://www.dangerden.com/store/product.php?productid=47&cat=14&page=1 but i suggest trying to find some "coolingworks" shrouds for it and some high pressure/power fans to get the most out of it

i have that style H/C with two coolingworks shrouds and a panaflo medium in pull, i used to have it setup with two high speed sunon's in push/pull and it worked great

[Martinm210]

All depends on the fans used.

A single PA120.3 with Yate Loons at 1000RPM is roughly equal to a PA120.1 with Scythe Ultra Kaze 3000RPM fans.

Get your earplugs though, a PA160 would be much better though, it's really much closer to a 120.2 performance than 120.1

The GTX series also does very well with stronger fans.


Anyhow, don't forget the fan variable, I'm seeing performance differences anywhere from 3X to 5X depending on the fans used on a radiator.

[madmaxx]

All depends on the fans used.


very true, thats why i've always used strong fans :yepp:

[b@llz0r]

What are your load temps on both cards? And what temperature is the air are you using to cool them? The TDP on an 8800Ultra is higher than that of a Q6600 at stock, two of them are a lot of heat to disipate...

55-60 under load with water compared to 85-95 on air