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Discussion Starter #1
<span style="font-size:medium;"><b>Test Machine</b></span><br>
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asus p5B-deluxe motherboard<br>
core 2 duo 6400 running @ 3.4ghz (stock is 2.13ghz)<br>
1gig dual channel mushkin extreme ddr2-6400 (stock settings in bios)<br>
zalman 9500 heatsink (testing two different 120mm fans)<br><br><br><span style="font-size:medium;"><b>Test Fan Data</b></span><br>
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(in the pics, i have obviously cut and trimmed the man fan motor/hub out of the typically square assembly; this is necessary so you can attach it to the zalman mounting arms)<br><br><br><b><i>global win</i></b> (aka "stubby")<br>
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model: BP1202512m<br>
Airflow: 74.5 CFM MAX<br>
Dimensions: 120 x 120 x 25 mm<br>
Speed: 2500 RPM max<br>
Noise Level: 45 dBA at max<br>
--<br><img alt="" src="http://resume.jbhfile.com/temp/bi-sonic_plain_fan.jpg" style="border:0px solid;"><br><br><br><br><b><i>silverstone</i></b><br>
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model: FM121<br>
Airflow: 110.03CFM MAX<br>
Dimension - 120 x 120 x 25mm<br>
Speed - 2400rpm max<br>
Noise Level: 39.5 dBA at max<br>
--<br><img alt="" src="http://resume.jbhfile.com/temp/silverstoneFM121_plain_fan.jpg" style="border:0px solid;"><br><br><br><span style="font-size:medium;"><b>The Test</b></span><br>
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Test is running two instances of dual prime95 (one for each processor core), for six hours and with the test setting "in-place large FFT's", the setting in dual prime95 that i've found generates the most heat in the shortest amount of time.<br><br>
Temps are achieved via motherboard monitor and Asus's provided AI Suite tools.<br><br>
I'm going to do the global win image and stats first as it's been tested dual prime95 for six hours already; i'll post the silverstone image since i just finished mounting it but won't have stats available until tomorrow.<br><br>
here's a pic of the global win fan mounted and in the case:<br><br><br><img alt="" src="http://resume.jbhfile.com/temp/bi-sonic_mounted.jpg" style="border:0px solid;"><br><br><br><b><i>globalwin - *RESULTS*</i></b><br>
six hours dual prime95 - in-place large FFT's<br>
core2 duo 6400 2.13ghz running @ 3.4 ghz<br>
-------------------------------------------<br>
cpu idle: 41-42<br>
cpu load: 60-61<br>
mb idle: 32<br>
mb load: 35-36<br><br>
(this is about a 8 or 9 degree decrease over the stock zalman fan)<br><br><br><br>
and now for the silverstone fan, ....<br><br>
this is a pic of the silverstone FM121 mounted on the zalman heatsink:<br><br><img alt="" src="http://resume.jbhfile.com/temp/silverstoneFM121_mounted_1.jpg" style="border:0px solid;"><br><br>
and another (fan blades 1/4 inch from RAM!):<br><br><img alt="" src="http://resume.jbhfile.com/temp/silverstoneFM121_mounted_2.jpg" style="border:0px solid;"><br><br><br><b><i>Silverstone FM121 - *RESULTS*</i></b><br>
six hours dual prime95 - in-place large FFT's<br>
core2 duo 6400 2.13ghz running @ 3.4 ghz<br>
-------------------------------------------<br>
cpu idle: 41-42<br>
cpu load: 58-60<br>
mb idle: 32<br>
mb load: 34-36<br><br>
glad i tested the silverstone last since it beat the other fan by about an average of 2 degrees.<br><br>
the main noticeable improvement, however was in how incredibly fast the fan brought the temps down to normal idle temps after stopping the dual prime test ... just 3 or 4 seconds and it was back down to 42 or so at idle; anyone with a zalman 9500 should change they're fan immediately if they're interested in decent air cooled clocks.<br><br>
now i have to see how much more speed i can get out of it before hitting 65 absolute max load temps.<br><br><br><span style="font-size:medium;"><b>Notes on the Mod in General</b></span><br>
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For this mod, I followed in the footsteps of another reviewer/modder over at silentPC; he's showing how to do this fan mod, but with a different 92mm fan (stock size) as opposed to the much larger 120mm.<br><br>
Here's a link to his process; a very well done write up: <a href="http://www.silentpcreview.com/article284-page1.html" target="_blank">How to Mod your 9500</a><br><br>
Where my own particular process differs however is in the fact that my fan must ride OUTSIDE the fin assembly and not inside, as the stock fan does.<br><br>
Therefore, to make this possible and while following the above linked mod process ... keep in mind that you will have to bend the mounting arm as demonstrated below in order for the 120mm fan mod to work:<br><br>
...<br><br><img alt="" src="http://resume.jbhfile.com/temp/zalman_arm.gif" style="border:0px solid;"><br><br>
...<br><br>
Otherwise ... if you want to drop your zalman's load temps by up to 11 degrees, then I say do this mod NOW.<br><br><img alt="" class="inlineimg" src="/images/smilies/grouphug.gif" style="border:0px solid;" title="Grouphug">
 

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Thats a nice mod, and nice temps! <img alt="" class="inlineimg" src="/images/smilies/thumb.gif" style="border:0px solid;" title="Thumb">
 

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Thats a modder <img alt="" class="inlineimg" src="/images/smilies/smile.gif" style="border:0px solid;" title="Smile"><br>
Nice work, kind of scarry for the fingers but sweet non the less!
 

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Discussion Starter #5
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<div>Originally Posted by <strong>The Duke</strong></div>
<div style="font-style:italic;">Thats a modder <img alt="" class="inlineimg" src="/images/smilies/smile.gif" style="border:0px solid;" title="Smile"><br>
Nice work, kind of scarry for the fingers but sweet non the less!</div>
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i sharpened the blades.<br><br>
:)<br><br>
it *was*, i will say ... a major pain getting the heat sink lock-down screw set on the clamp closest to the fan; i mean, after i had set the thing down on the AS5 and CPU; no light ... even with all kinds of flashlights in there i could just barely see where to put the damn screw. i applied and reapplied AS5 and the heatsink 4 times before getting it right. it would be simple with the board out of the case but didn't want to mess with the wires.
 

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Discussion Starter #6
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
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<div>Originally Posted by <strong>korndog2003</strong></div>
<div style="font-style:italic;">Good job write a faq!</div>
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i thought about it but there's already a guy who wrote one; that's what initially inspired me to replace the fan (other than crappy cooling for high clocks with the stock zalman fan).<br><br>
his goal was less noise (not my concern) and so i simply followed his faq and chose the muscle fan that worked best for max cooling.<br><br>
here goes:<br><br><a href="http://www.silentpcreview.com/article284-page1.html" target="_blank">http://www.silentpcreview.com/article284-page1.html</a>
 

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Awesome....but why spend $50 on a crappy heatsink, then $15 more on a fan to cut up and then spend time to mod it out just to get barely acceptable temps? <img src="/images/smilies/wink.gif" border="0" alt="" title="Wink" class="inlineimg" /> <br />
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What you need to do is test that modded 9500 against an Infinity or a Noctua. <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" /> <br />
<br />
I bet if you modded a shroud to actual direct the air from those fans over the fins you would get even better temps, even though you used a 120mm fan, it has nothing to direct the flow, so much of the air is getting thrown around the outside.
 

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Nice mod, I now want to buy a 9500 and a 220CFM delta.
 

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i want to do that to my 9500 but with a 92mm fan instead so it still looks good<br />
<br />
maybe like a 92mm x 35mm fan <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" />
 

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>Thumper</strong>

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<div style="font-style:italic">Awesome....but why spend $50 on a crappy heatsink, then $15 more on a fan to cut up and then spend time to mod it out just to get barely acceptable temps? <img src="/images/smilies/wink.gif" border="0" alt="" title="Wink" class="inlineimg" /> <br />
<br />
What you need to do is test that modded 9500 against an Infinity or a Noctua. <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" /> <br />
<br />
I bet if you modded a shroud to actual direct the air from those fans over the fins you would get even better temps, even though you used a 120mm fan, it has nothing to direct the flow, so much of the air is getting thrown around the outside.</div>

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</div>Yeah. That's what I was thinking. Get a BT or a SI-128. You won't have to tear up a fan and probably get better results anyway.<br />
<br />
But nice mod, it seems like it helped you a lot, which is all thats important really.
 

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Wont know till you try <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" />
 

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hmm wonder what happens if you put the guts of a tornado fan on..... it would probobly self destruct LOL
 

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>born2killU</strong>

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<div style="font-style:italic">i want to do that to my 9500 but with a 92mm fan instead so it still looks good<br />
<br />
maybe like a 92mm x 35mm fan <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" /></div>

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</div>The larger fan is whats needed, with a stock 92 mm fan, not much air is moved over the outer fins, most of it is just pushed through the middle, where there are no fins.... Using a 120mm fan really moves max air over all of the fins...
 

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>born2killU</strong>

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<div style="font-style:italic">i want to do that to my 9500 but with a 92mm fan instead so it still looks good<br />
<br />
maybe like a 92mm x 35mm fan <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" /></div>

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</div>I would get a SilverStone FM92 to try it out. As its a 110mm fan in a 92mm body.<br />
<br />
pink
 

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Great job man, watch your fingers. <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" />
 

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Discussion Starter #17
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>Thumper</strong></div>
<div style="font-style:italic;">Awesome....but why spend $50 on a crappy heatsink, then $15 more on a fan to cut up and then spend time to mod it out just to get barely acceptable temps? <img alt="" class="inlineimg" src="/images/smilies/wink.gif" style="border:0px solid;" title="Wink"></div>
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i wish i had a noctua to test it against; that's actually one of my favorite air coolers. but i think, unless i had two of those silverstones strapped to the noctua that is ... that the modded zalman would smoke it.<br><br>
i think the temps are totally acceptable. playing games for two hours or rendering hour long DV composites *never* get the temps near the 59 degree dual prime load. that's why i do dual prime ... i know if i can hit an ok temp with that then i'm good to go for my usual routines.<br><br>
if you or anyone happens to have a spare noctua sitting around, send it to me and i'll do an official comparison then mail it back. not likely but just in case someone does ... i'll do it.<br><br>
the cpu is running almost 1450ghz over it's stock speed ... is that not pretty decent for dualprime loads of 59 to 60? i'm new to the core2 duos so sort of naive aboue temps and percentile of overclock and what not. give me some examples so i can research other folks results ...<br><br>
take it easy (and send me a noctua!)
 

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Discussion Starter #18
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
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<div>Originally Posted by <strong>Mootsfox</strong></div>
<div style="font-style:italic;">Nice mod, I now want to buy a 9500 and a 220CFM delta.</div>
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that would rock, i'm sure; i think the dramatic drop is cause the entire heatsink is getting hit by the fan coverage: the main base plate, the heat pipes and *all* of the cooling fins. makes a huge huge difference.<br><br>
i sort of agree with the guy who said the stock zalman isn't that great of a cooler compared to the noctua ... it really isn't; had i researched more before buying a cooler and had i *not* listened to the guy at fry's elect's. ... i'd of certainly bought a noctua or an ultra120 or a scythe product (or even an amanda, which i sort of find peculiar and attractive)<br><br>
but if your already stuck with a 9500 ... then modding with a 120 highoutput will put it on par with or better than any of the others (barring the dual fan heats like the noctua that you could strap TWO deltas to.)
 

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Discussion Starter #19
<div style="margin:20px;margin-top:5px;">
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<div>Originally Posted by <strong>Squeeky</strong></div>
<div style="font-style:italic;">hmm wonder what happens if you put the guts of a tornado fan on..... it would probobly self destruct LOL</div>
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i looked at the tornado but didn't think the construction of the fan assembly would allow it ...<br><br>
that's what i wanted to use ...
 

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Discussion Starter #20
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
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<div>Originally Posted by <strong>born2killU</strong></div>
<div style="font-style:italic;">wonder how much of a temp decrease you would get from a CNPS 9700 and a better fan</div>
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i don't think you could put a big 120mm *outside* the cooling fin assembly like i did; there' most likely wouldn't be room.<br><br>
with the 9500, which most likely has a significantly narrower width (front to back) the 120mm fan just *barely* clears my ram slots (i've got about 1/4" or less clearance). i think the 9700 would be to fat to allow a completely external fan like i added to the 9500.<br><br>
you could replace it's stock fan with a higher output fan of the same size, though ... would definitely improve.
 
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