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-   -   Aircooling @ the MAX, Performance & Silence Tested (https://www.madshrimps.be/vbulletin/f6/aircooling-max-performance-silence-tested-1732/)

jmke 18th March 2003 22:59

Aircooling @ the MAX, Performance & Silence Tested
 

Quote:

Looking for the ultimate aircooling ? Want to push more then 1.85v through that Athlon XP core and still have headroom for overclocking? Or looking for a very silent solution to keep it all cool and safe?
Look no further, we test ThermalRight's SLK900U and compare it to its older brother the SLK800. And for reference we also include the popular Alpha PAL8045 and the Swiftech 462-A!
http://www.madshrimps.be/gotoartik.php?articID=55


thanks again TerAngreal for the great support during testing & the great write-up afterwards!

Bosw8er 18th March 2003 23:36

:ws:

VERY usefull, it contains all the important info needed AND keeping it short enough

:ws:

jakkerd 19th March 2003 00:31

w00t
excellent article
:ws:

Da`Hitch 19th March 2003 00:57

Quote:

Released on 23 december 2000, this big shiny bastard still stands its ground as one of the better aircooling solutions on the market. It's no more then normal that Swiftech brought out a new revision of this product (the MCX462). Interesting fact: this was the first heatsink ever which fitted both on AMD and PIV mainboards.
Am I really just stupid or is the date mistaken??
I don't remember seeing any PIV's around in the year 2000. :-)

jmke 19th March 2003 01:11

http://www.swiftnets.com/products/mc462.asp

=)
correct as can be!

Quote:

Dec 23, 2000 product introduction - Updated May 3, 2001

MC462 for AMD Socket A and IntelŪ PentiumŪ 4

TerAngreal 19th March 2003 12:34

thanks for the feedback guys!

@ D@ Hitch:
Intel's "history of innovations" places the Pentium IV processor in the year 2000 as well ... that does not imply it was available on the open market at that time yet, but it sure means there had to be an Intel reference board for the Pentium IV.

The Senile Doctor 19th March 2003 12:38

hmm, very curious towards the update... will the slk900 overtake when used with a 92mm fan??

TerAngreal 19th March 2003 13:05

my guess: yes, it will ... but only by a mere 1°C or so

an 80mm fan just doesn't cool down the entire SLK900, where it does for the SLK800

Devil's Prophet 19th March 2003 13:44

I'm happy to see that my (and other's) SLK800 is still on a rampage ! :D

And with 1 or 2 casefans placed in a real position as they would be put when in a case, the SLK800 would really outperform the SLK900, because the it blocks the airflow by having upwards-pointing fins. (casefan not like in the article, in the article the fan emulates a double/triple-fanned psu imo, not a rear casefan :))

Soit, glad to hear my baby still r0x. =)

Very nice review btw, except for some "then<=>than" mistakes it's luvly !

Btw: I'm getting fairly high temps imo, I'll explain my situation in full detail:

Chieftec DX-01BD:
* intake: 2x 80mm Enermax@low-speed (NGML or equivalent kinda airflow)
* exhaust: 2x 80mm Papst NGML
Psu:
* Enermax 350W, autotemp, 92mm intake, 80mm exhaust, replaced (enermax-fans = noisy) by 80mm NGML and 92mm NGL, which equals an 80mm NGM in airflow (tested on the "feeling" on my old AT-psu testbank =))
Heatsink+fan:
* SLK800 with 80mm Papst NG, fins pointing to my exhaust casefans
CPU:
* AMD Duron (morgan) 1GHz@1215MHz(9x135) 1.91vcore, AS3 of course

These are the temps I'm getting: Fairly idle, just browsing, trillian, winamp, yada yada, the usual stuff


Ambient is always around 21°C, thus proving the tempsensor n°1 as being errorous. (most of the time it reads 19 to 20°C)

/mod: Getting 46°C or even 47°C as full-stressed temp is not rare. (distributed.net client = fully stressed)

Gamer 19th March 2003 19:23

nice work.

B|oweFish 19th March 2003 19:49

i've got a Volcano 7 + enermax casefan

Temps @ my xp1800 Tberd A : Load: 34° , Idle 30° (sometimes 29°)


Really nice article! Very handy imo.

:super:

fishgoh0nk 20th March 2003 03:02

yah, this is a great article..... but.... i've really been searching the reviews to find which cooler works best under a low speed fan: such as a panaflow 12volt at 24 CFM. So far, i'm convinced that the PAL would work best... but... the article only tests a fan blowing from the side which gives the other coolers a disadvantage, especially the SLKs since their air-oulets are only horizontal, not like the swiftech or the PAL, which go in all directions. Hope someone can give me a predictions which one would be better in a situation where a 24 CFM fan was mounted on top of each heatsink. Thanks. --

i'm building a SILENT SILENT SILENT PC! =)

The Senile Doctor 20th March 2003 14:21

watercool it

jmke 20th March 2003 14:25

the SLK900 will perform best overall, the way the copper is shaped + a 92mm fan will allow for the maximum heat to be quickly removed , thereby keeping your CPU cool as crisp :)

Devil's Prophet 20th March 2003 18:47

Anyone who knows what's the reason of my high temps by accident ? :-)

/mod: sorry for the offtopic-level of my post, but since most of the ppl that are interested SLK800/900 will read this topic, AND with the reason for my suspections about my system due reading that article, I came to the idea of proposing my problem here.

Excuse me once more btw.

jmke 20th March 2003 19:58

47°C in a case with 1.9v through a Duron core is not THAT high in my humble opinion

Devil's Prophet 21st March 2003 21:59

Quote:

Originally posted by jmke
47°C in a case with 1.9v through a Duron core is not THAT high in my humble opinion
Aight, I will see what temps I will get when I got my 2400+ AIUHB. =)

Thx btw.

Bored 31st March 2003 14:27

I'm wondering which is the best PIV cooler.
The options are: Swiftech MCX-4000, Alpha pal 8942 (nevermind about that, isn't the best anyway or SLK-900

And 'cause you guys have got all these coolers, i thought maybe you'd know wich one would be THE best cooler.
But you guys tested it on AMD :(

Should it be possible to test it on a PIV together with the swiftec?
I'd appreciate that very much, and I guess I'm not the only one

Tnx on advance, Bored

jmke 31st March 2003 14:30

we "got" is indeed the correct word
we don't have them anymore :/

but we have some other things also for P4 lined up :)

Bored 31st March 2003 14:46

Can u tell what u think the best cooler is? It mustn't be one of those i mentioned, i just want TEH UBERLEETEST PIV heatsink ;)
And I have allready ordered a 120mm papst @80 CFM, which i will combine with a fanadapter.

PS: is it possible to fit the adapter on the SLK-900?

jmke 31st March 2003 15:01

depends on the adapter :)

the AMD produces alot of heat @ 2v vcore
seeing as the SLK900 is also at the top of the performance list, you can be sure it is quite good for your P4

http://www.overclockers.com/articles373/

for P4
Cooler Master IHC-H71: 0.16

Bored 31st March 2003 15:07

Is that coolermaster really better :|
I cant believe it, i thought the titans were MCX 4000 and SLK-900

Its the see-trough blue adapter @loveno

Well, thanks anyways

Bored 31st March 2003 15:11

I can't find the coolermaster anywhere :( I only saw a ICh L71

jmke 31st March 2003 15:16

as you can see, the Alpha PAL8942 is worse then the Coolermaster.. but the Alpha is beaten by the Swiftech in my review -> http://www.madshrimps.be/gotoartik.php?articID=37

so Swiftech/SLK will surely be top quality

Bored 31st March 2003 15:23

I know, but what is THE TOP :'(
I'm wondering about that for months now, and i haven't find an answer yet, @ telenet.games they say: thermalright slk900, and if I ask why: cuz its something different then what the others have :s What a statement :s

Btw, @ www.overclockers.com, what does the C/W number mean?

jmke 31st March 2003 15:25

Quote:

To calculate what to expect for other CPUs, for every watt the CPU radiates, the heatsink will cool the core by the (C/W x watts) plus ambient temp. For example, at a fan inlet temp of 25 C, a C/W of 0.25 with a CPU radiating 50 watts means that the CPU temp will be 50 x 0.25 = 12.5 C over ambient temp, or 37.5 C.
ps: the "TOP" will see a Max. difference of 1-2°C
which is not much, so can't go wrong either way :)


Quote:

C/W means that for every watt the CPU radiates, the heatsink is supposed to cool the core by C/W x watts plus ambient temp.

Bored 31st March 2003 15:47

Quote:

A difference of 3 degrees can be the difference between constant reboots, or running that killer rig primestable.
Need i say more

jmke 31st March 2003 15:52

you're quoting from an AMD article my man :)

Intel has higher threshholds :)

Bored 31st March 2003 17:12

So what :D

I guess the swiftech is more compatible with a fanadapter, and i guess it won't fit on the thermalright, but i allso have a 92mm fan from my dell PC, which DOES fit on the slk, but with a much lower airflow as my 80CFM papst

I just want to squeeze every last megahertz out of that p4 1.8 (the one with 256 cache, williamette i believe :()
I bought 2 40mm fans to mount on my rimms (should be bottleneck to OC i think, but they perform pretty well)
and a 80mm to put on my graka (on top of it) or to combine with a zalman 80a hp in the future

BDke 31st March 2003 17:28

yeah the thermalright slk800u is very good.
i just received it and still testing the stability on my P4

with the intel stock cooler and running @ 100% load i got a temp reaching to 56°C. Overclocked to 2983mhz it was 62° (way to much)

I don't have any temps yet with the slk800U but i'll put em online soon

jmke 31st March 2003 17:59

thank BDke! If you're interested I can throw together a small article with your experiences of the SLK800U, send me an email if you want to help us out :) jmke@madshrimps.be

thanks in advance! :super:

BDke 24th April 2003 20:29

Aalraajt.
BDke has installed his SLK800U with a 80mm YS-tech cooler.
Difference between the intel stock cooler is that the SLK800U is very heavy and looks awesome.

I'll post some test results.

Intel Stock Cooler
Idle
- Not oc'ed -> 42°
- Oc'ed (2.53@2983) -> 55°
100% Load during 10 minuts
- Not oc'ed -> 55°
- Oc'ed (2.53@2983) -> 63°

Thermalrigh SLK800U with YS-tech 80mm
Idle
- Not oc'ed -> 38°
- Oc'ed (2.53@2983) -> 41°
100% Load during 10 minuts
- Not oc'ed -> 45°
- Oc'ed (2.53@2983) -> 52°

All test are runned with a Intel P4 2.53 on Asus P4PE.
During overclocking the fsb went to 158mhz and Vcore @ 1.625v
ROCKSTABLE.
Now my P4 is running @ 2850mhz without touching the Vcorce (1.5v) ROCKSTABLE!!!!!

While oc'ing with the intel stock cooler I had to use 1.650v cause it wouldn't run stable enough.

This is a small user experience with the SLK800u.

Questions?
just ask :)

TeuS 24th April 2003 20:49

did you use the same compound for both heatsinks (with other words: not the thermal pad) ?

BDke 24th April 2003 21:06

I used the same compound yes.
It's low budget. I got it from a friend but i am going to buy some arctic silver soon.
The temp may drop some more.
And then i'll put 3*120mm papst fans in my case for an optimal airflow and i hope that will cool of the cpu as well :)

jmke 24th April 2003 23:17

great results, comes to show the SLK800 is worth its money if you put it to good use like you did :super:

thanks for your input BDke!

BDke 25th April 2003 13:15

np dude :)

Dirty Harry 26th April 2003 18:19

I'm a little confused, does my Swiftech MX-462 still stands it ground, or is it become oldfashion and I should change cooling?

BDke 29th May 2003 16:07

if it still stands ground, why bother spending money on something you don't need? buy something else instead and purchase a new cooler when needed :)

veder 2nd June 2003 13:16

ok, i'm going to buy a new cooler. Now i have a zalman with a amd xp 2000+ (palomino :( ). I had to lower my Vcore (now 1.675) because of the temps (now - normal use with folding- cpu: 58°).

i don't know which HS to buy. I doubt between a slk800 or slk900. Is the difference big between a slk800 and an slk900u (with zalman fan deliverd with my old cooler - CNPS6000CU )

T-power 2nd June 2003 14:47

another advantage or ...

SLK800 to SLK900
blowing air through fans doesn't blow hot air towards grafix card with 800 and does with 900
casefan comes more handy with 800 than 900

on the other hand
900 blows wind towards PSU with fan on bottom but hey we use a backcasefan , don't we!


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