Whats better when set to the same noise level, Aero 7+ or slk 800/sk7?? and 120mm?

Aihyah · Aug 11, 2003

Whats better when set to the same noise level, Aero 7+ or slk 800/sk7?? and 120mm?

right now i'm trying to silence the pc. the slk/sk would have their fans running kinda slow, like a panaflo i guess. i wonder how this would compare to an aero 7+ at the same noise level, which is probably around slighlty less then 50% speed i'm guessing.

also, is there a way to get 92-120mm on the slk/sk7? obviously not an option for the aero.

i'm running a xp 1800+ @2.35ghz 1.69v

Gautam · Aug 11, 2003

SK/SLK, no contest. A 92mm can fit on both, with a little clip bending.

Aihyah · Aug 11, 2003

yea, so far i've found this http://www.frozentechnology.com/article.php3?story_id=26

the slk performs better at low rpm cooling hmm. guess i'm heavily leaning towards it.

i guess the reason the hitechjb1 from the 2.5ghz air results thread doesn't have much difference between the sk7 and slk is cuz he uses a tornado

Gautam · Aug 11, 2003

Not quite. Even in that review, the SK7 is consistently around 3°C lower. Hitechjb1 shows just what that difference translates to in reality, and shows that its actually not very much in regards to overclockability. Either one is an excellent choice, but the SLK may give you the last 50-100mhz left in your processor. That's where the slightly lower temps show their advantage; when the processor is pushed to its limits.

L337 M33P · Aug 11, 2003

Have you looked at any Zalman heatsinks? The copper flower design is damn near silent on one of out PCs.

The CNPS6000Cu goes for around £30 in the UK, and the AlCu version slightly less.

Aihyah · Aug 11, 2003

yea, i looked at the zalman, but it gets its *** handed to it in this review

http://www.silentpcreview.com/modul...ns&file=index&req=viewarticle&artid=47&page=1

oh well

and another

L337 M33P · Aug 11, 2003

EH? Those results for 12V suggest that the Zalman is worse than my stock HSF! Now that I refuse to believe.

Something screwy here - be back later after I read the whole review

Ok found that they removed and replaced the heatsinks lots. I know for a fact that the 6000's clip is a bit weedy and I bet that if you tip my dad's computer on it's end the HS will fall off. But, with his system and using Sisoft Sandra's CPU burn in wizard, it gave a thermal resistance of ~0.23C/W, which is less than half the value they suggest. The fan speed was at about 1800RPM at the time with no case fans (case temp was like 39C lol). Even with the inaccuracies of the test, I refuse to believe that the 6000 has a thermal resistance worse than that of the stock HSF that comes with AMD procs.

Gautam · Aug 11, 2003

The review looks rather nicely done to me; its results seem quite accurate. I'd find it a lot harder to believe that it could give a thermal resistance of .23 C/W in any system- this is performance delievered by an SLK800 with a Tornado. The 6000Cu does decently with more airflow, as you can see with those results themselves and a Sanyo 12V fan. It gets a reasonable .38 C/W, but still nowhere nearly enough for high-level overclocking. As a comparison point, the far superior CNPS7000Cu has a thermal resistance of .32 C/W; the 6000 Cu will be worse than this. Regardless of whether you want high noise levels, or low noise levels, the SLK/ SK series is the way to go.

L337 M33P · Aug 11, 2003

Whoops my bad just found out that the crummy motherboard with which we tested the 6000 only has under-socket thermal monitoring

now if I can just switch the CPUs over in my machine and his....

Anyway assuming worst-case for all of these temperatures:

The max temp reached was about 53C, so assuming there is a 3-5C difference between die temp and CPU socket (mine is anyway)

Instead of 53C 39C case we have 58C 39C case. Do the maths (core power 60W nominal) and we have 0.32C/W - still better'n the test they did, and the HSF was on low speed.

Pfft I am off on a tangent - Thermalright make good heatsinks and you probably can't go wrong with them.

Aihyah · Aug 11, 2003

is your rig overclocked? or is the sig outa date?

L337 M33P · Aug 11, 2003

nope, the data for rig 1 holds true. It's like that now.

Cept for the load temps - god knows what they are in this heat

RobP4P · Aug 11, 2003

my 40cm panaflo keeps my 2.315ghz barton at 42-44C idle 55C load w/sk-7 and 32C case temps

Aihyah · Aug 11, 2003

RobP4P said:
my 40cm panaflo keeps my 2.315ghz barton at 42-44C idle 55C load w/sk-7 and 32C case temps

40cm?? they make fans over a foot in diameter?

L337 M33P · Aug 11, 2003

Yeah, they're called car radiator fans

Aihyah · Aug 11, 2003

that would be a strange mod lol

yea, right now i'm getting 42~C if i run my pos xdream 80mm at 4000+rpm. thats very annoying sounding.

Eroc · Aug 11, 2003

I used a Vantec Aeroflow and it worked well with low noise on a Barton that naturally ran hot.

Check it out.

Aihyah · Aug 12, 2003

ok, i got the slk 800 and zalman 92 installed

it doesn't really overhang much at all. the fins just reach the end of the heatsink on the long sides. wow that zalman is quiet, even without the resistor installed. i use my fan controller instead but i can't hear the thing over my vantec stealth case fans at max, go figure

anyhow, not bad, it hasn't burned in yet and i'm just using the compound that came with the heatsink, 42c full load. and silent. my previous dream-x could only get that at screaming loud 4500 rpm.

very sweet

cheesy showoff pics

and from what i've read about the aero, its ok for non overclocked, but increasing its cooling makes that fan really loud.

now testing at 2.4ghz

*fixed

L337 M33P · Aug 12, 2003

^^ Try swapping "cheesy show off pics" with the URL.

Good overclock dude! 2.4GHz on a Barton wheee

What voltages?

Aihyah · Aug 12, 2003

its not a barton, its an 1800+ from frys combo. its probably not running at its potential yet considernig what other people get this chip to do. i'll tweak later

only 1.69v so far. if i go farther its gotta go up.

L337 M33P · Aug 12, 2003

LoL - that fan is just too ghetto hahaha - I bet you get good cooling though - try making a duct for it so you can have all the airflow go on the heatsink

Whats better when set to the same noise level, Aero 7+ or slk 800/sk7?? and 120mm?

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