Black Ice Micro Heat dispensation

[ZaVkE]

DD states that the BIM is able to cool 275W (which i find a very large number )
I calculated the heat produced by my system, around max 160W, but very likely much less (cpu, vga, chipset).

Will the BIM be able to handle this load? And which fan (amount cfm min needed) should i use?

Note: Any answer like: Get a heathercore, heatercores are better, get a larger rad, ... will be totally ignored. Especially thoses without argumentation.

It is not possible to use a larger rad and most likely not even to use 2 of them.
So don't bother with such answers.

[bigben2k]

(foregoing the obvious...)

It's a really poor rating for a rad, because it's quite meaningless: pretty much any rad can handle 275W, what it doesn't say is what temperature you can expect to end up with, nor how.

A BIM isn't recomended if you're going to include the GPU in the loop (from DD, not me).

[Cathar]

From my understanding of discussions with Willy from HWLabs two years ago, the Black Ice radiator ratings were calculated with a 40C temperature differential between the coolant and the incoming air.

If I am misremembering that figure I will happily admit to being wrong as soon as some hard figures are shown by HWLabs directly as to just how, and under what coolant/air temperatures conditions such values were attained.

A quick persual of Bill Adams' tests of the ThermalChill 80.1, which is a radiator very similar to the BIM, shows that the 40C delta figure to be quite likely to be correct.

i.e. If your system is dumping 160W, and the radiator is rated for 275W, then the water temps will be 160/275*40 =~ 23C above room air temperature.

[opteron_bitch]

I'll be using the BIM II for 2cpuz and a 6800gpu, until i feel up to cutting a hole in the top of my nice aluminum case for a big heater core.

[Razor6]

Originally Posted by Cathar

i.e. If your system is dumping 160W, and the radiator is rated for 275W, then the water temps will be 160/275*40 =~ 23C above room air temperature.

But that's at a specified coolant and airflow rate which means that it could be higher or lower depending on the components used in the end user's system. Correct?

[redleader]

Its pretty doubtful you'd beat a good heatsink with something like that, so I wouldn't bother watercooling in your case. Its a waste of money, and given that you'd probably need a powerful fan, I doubt its any quieter.

[Cathar]

Originally Posted by Razor6

But that's at a specified coolant and airflow rate which means that it could be higher or lower depending on the components used in the end user's system. Correct?

Yes. I believe that coolant flow rate was 1GPM, and air-flow rate is using a fairly powerful and noisy 8cm fan.

Again, it would help if HWLabs published the exact details rather than having us all guess from bits and pieces.

[pHaestus]

I don't see why you couldn't use the new Swiftech adapter and a BI Pro off the back of a case. The micros are only tolerable in pairs...

[Joe]

Originally Posted by pHaestus

I don't see why you couldn't use the new Swiftech adapter and a BI Pro off the back of a case. The micros are only tolerable in pairs...

Much like lesbians

[JWFokker]

Can anyone testify to a measurable performance difference between a Black Ice Pro and a Black Ice Xtreme rad? I'd like a dual 120mm rad next week, but there's a $35 difference between these two and the HWLabs site claims the Xtreme series is about 2x better at dissipating heat than the Pro series. I'm not so much asking whether or not you think it's worth it, but whether or not there's an appreciable increase in performance.

[opteron_bitch]

Originally Posted by JWFokker

Can anyone testify to a measurable performance difference between a Black Ice Pro and a Black Ice Xtreme rad? I'd like a dual 120mm rad next week, but there's a $35 difference between these two and the HWLabs site claims the Xtreme series is about 2x better at dissipating heat than the Pro series. I'm not so much asking whether or not you think it's worth it, but whether or not there's an appreciable increase in performance.

Since you can fit a radiator that big in your box, why not just get a nice heater core. You can get an awesome one for about $20.

[msv]

My BIM had 1/4" fittings (even though it was specified to have 3/8" fittings), so 1 GPM coolant flow was a bit beyond my Eheim 1048´s capacity.
I replaced the BIM with a heater core and went up to 1/2" tubing, and of course, replaced a 32 CFM 8 cm fan with a 55 CFM 12 cm fan. The in-socket diod (for whatever that is worth) reported a 6-7 degree Celsius temp drop with same pump and same WB.
The BIM kept the CPU some 4-5 degrees Celsius cooler than air cooling in Prime95 (still referring to inacurate in-socket diod).
I would *not* cool more than just the CPU with a single BIM.
regards
Mikael S.

[ZaVkE]

Originally Posted by pHaestus

I don't see why you couldn't use the new Swiftech adapter and a BI Pro off the back of a case. The micros are only tolerable in pairs...

Shuttle
And i don't want that there's something outside the original case.

[Tempus]

Originally Posted by Joe

Much like lesbians

looks like I found my new sig

[Tempus]

On a more serious note, I purchased 2 dual BIMs a while back (I got a koolance case and wanted to see how much fun I could have with it.)

Ignoring the fact that i'll never touch 1/4" or 3/8" ID tubing again....


I had a few issues with them.

The first one I sorta ruptured the fin tubing within the radiators because I torqued the fan screws a bit too tightly and the flat heads went into tubing causing a minor leak.

No biggie. I swapped in the other one. Noticed the barb fittings a slightly loose. A few thermal cycles later (about a month) and one of the barbs decided to come off. Not too good.

No problems with my BIX or BIX2s so I'm guess it was just bad karma there.

Heat wise, I just could not get enough water or air flow to make the smaller systems efficiently move the heat. With your expected heat load, I do not thing you will be very happy with this setup.

If your case only has 80mm fan mounts and you will not cut into them, then I'd recommend getting a case w/ 120mm mounts - I like the super lanboy.

[BillA]

Tempus
here is some rad testing, do note their qualifier in the test equip section
http://translate.google.com/translat...language_tools

[SlaterSpeed]

Originally Posted by Tempus

I swapped in the other one. Noticed the barb fittings a slightly loose. A few thermal cycles later (about a month) and one of the barbs decided to come off. Not too good.

I brought one of a guy on ebay which had the same problem. Soldered it back up and sold it again .

[Tempus]

Originally Posted by unregistered

Tempus
here is some rad testing, do note their qualifier in the test equip section
http://translate.google.com/translat...language_tools

great bill! this is exactly what I was looking for.

[BillA]

be prudent, the numbers are not accurate - nor even the relationships between rads

[JWFokker]

If that's even remotely accurate, there's only a 13% improvement in thermal dissipation between the Black Ice Pro 2 and the Black Ice Extreme 2. What that means for real world temps is beyond me.

[Tempus]

I'm getting a flow meter from one of our suppliers - supposed to do 0.5 - 10 GPM with +/- 3% accuracy.

now I just need a good die simulator and some decent temperature measuring equipment and I'll have my own test bed

[pHaestus]

Looking for some wbs to test? I have a stack

[JWFokker]

It just wouldn't be the same if it wasn't pHaestus Tested (TM).

[bobkoure]

Originally Posted by JWFokker

Can anyone testify to a measurable performance difference between a Black Ice Pro and a Black Ice Xtreme rad?

I've used the thinner one in place of the thicker one in systems I've built where the focus was low/no noise. The thinner ones have less resistance to airflow and , if you're using undervolted axial fans (which are poor performers pressure-wise) this is the one to get.
My one data point is a single-120 pro vs a single-120 xtreme. Using a panaflo L1A (5V) the diode numbers were slightly lower with the pro. Note that these are diode (MBM) numbers and so are semi worthless, except that they were on the same system and I'd changed nothing else - hadn't even removed/remounted the block. I'd theorize that either the resistance in the xtreme was high enough that my (pitiful) airflow was stalled, or temps were actually lower with the xtreme, contrary to my diode readings.
The last time I mentioned this here, someone told me I was full of s**t. I don't happen to think I am (at least not on this issue ), but feel free to do a search for this thread, see me get beaten up and maybe get both sides of this.
Bob

[JWFokker]

The undervolted fans may not have enough air pressure to deal with the increased fin density of the Xtreme, since the same holds true for Thermalright heatsinks. I'd like to know the difference between a 2-342 and a Black Ice Pro though now that I've ruled out the BIX.