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Plec
Icrontic Regular
Plec
45 Posts
20 Jun 2003, 3:04pm

60>80 adaptor + 80mm fan on HS - any benifit?

I have a coolermaster Heatpipe on my CPU (XP chip) & i'm thinking of fitting a silent 80mm fan using a 60 > 80 adaptor to try & reduce my summer temps.

The factory default fan on the HS has a CFM of 14 & the 80mm fan that would replace it would be 27 CFM.

Would i notice a considerable temp drop with almost double the CFM, or would the 60 > 80 adaptor height comprimise the cooling efficiency too much; negating any additional cooling effect due to not being directly attached to the HS?

Plec
__________________ Case: GlobalWin 802 Case CPU: XP2100+ @ 160 x 13 Motherboard: ASUS A7N8X Deluxe BIOS: 1004 Cooling: Silent CoolerMaster HCC-L61 Memory:2 x 256Mb DDR 3200 TwinMOS Ram Gfx Card: Creative GeForce4 4800SE Soundcard: Onboard HDD: 2 x Maxtor 120Gig SATA150 DVD: Pioneer 16x CD-R: Creative 32-12-10 NET: Broadband USB Modem OS: win XP Pro (SP1)
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stoopid
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stoopid
1,388 Posts
20 Jun 2003, 3:17pm
You would see some benefit, especially if it's a stealth 80mm (quiet) and decent cfm (the stock thing sounds like junk, so just about anything, adapter or no adapter, will help).
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Enverex
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Enverex
5,852 Posts
20 Jun 2003, 5:23pm
80>60mm converters can do more harm that good as most of them end up blowing back more air on themselves than they actually blow into the Heatsink, also for the same reason, they can end up being nosier. If you are sure you are going to do it just make sure its a very high quailty conver that you use.

NS
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Tex
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Tex
4,130 Posts
20 Jun 2003, 5:54pm
An 80mm can blow the same amount of air at a lower noise level. The 60mm fans tend to have much higher rpm levels and a high pitched whine that bugs me to get the same airflow. I have never used the adapters. I run all 80mm fans on my heatsinks and all are either temp speed controlled or manualy speed controlled as I use them to reduce noice not get better cooling.

Tex
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Plec
Icrontic Regular
Plec
45 Posts
20 Jun 2003, 6:36pm
Thanks for all the replies.

Originally posted by Tex
I have never used the adapters. I run all 80mm fans on my heatsinks...
Tex
Tex, how do you attach the 80mm fan to a HS designed for a 60mm fan - as i would probably prefer that option?

Plec
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stoopid
realizes he's in grave danger
stoopid
1,388 Posts
20 Jun 2003, 6:43pm
Originally posted by Plec
Tex, how do you attach the 80mm fan to a HS designed for a 60mm fan - as i would probably prefer that option?
All his heatsinks are designed for 80mm fans.
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Tex
Tex Support
Tex
4,130 Posts
20 Jun 2003, 6:45pm
I run SK7's on both my dualies and my KR7. Five total. They come with a variety of little wire attachment thingys that fit differant width and size fans.

I have three 80mm manual speed adjustment Enermax fans and two very very quiet temp controlled speed adjustable fans on one dualie.

Sorry if I wasn't more help. I swear by these sk7's. Best combo of performance and price on the market right now IMHO.

Tex
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stoopid
realizes he's in grave danger
stoopid
1,388 Posts
20 Jun 2003, 7:34pm
Originally posted by Tex
I swear by these sk7's. Best combo of performance and price on the market right now IMHO.
AX-7 is still a sweet deal too, just below the SK7 in performance:

http://www.overclockers.com/articles373/
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Plec
Icrontic Regular
Plec
45 Posts
20 Jun 2003, 8:30pm
Originally posted by Tex
Sorry if I wasn't more help. I swear by these sk7's. Best combo of performance and price on the market right now IMHO.
You've helped a lot (besides running these boards) - it may be that i should spend a few more pounds & get a completely different HS & fan combo. I went for the quick solution with the initial build but the Coolermaster HS/fan aren't proving to be as effective as i'd hoped.

I'd never considered a HS big enough to accomodate an 80mm fan before, was always worried about the weight, but perhaps i should look again.

The reviews of the SK7 & the AX-7, which stoopid pointed out, shows me that perhaps i need to just buy a whole new unit.

Thanks for all your help guys.

Plec
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CCW
Icrontic Duke of Haxor
CCW
221 Posts
20 Jun 2003, 8:49pm
Best way is to cut a hole for a 120mm fan in side of the case blowing over heatsink. That will allow you to have low RPM fans that push a lot of air so its silent. Ive done this for a friend and it dropped his temps by 10*C.

Craig
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Tex
Tex Support
Tex
4,130 Posts
20 Jun 2003, 9:42pm
Originally posted by CCW
Best way is to cut a hole for a 120mm fan in side of the case blowing over heatsink. That will allow you to have low RPM fans that push a lot of air so its silent. Ive done this for a friend and it dropped his temps by 10*C.

Craig
Almost everyone has the fans in the side pulling air out. You and I may be the only guys thinking that blowing cooler air straight on the cpu/HSF is better but my temps have always been better that way.

Tex
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Plec
Icrontic Regular
Plec
45 Posts
20 Jun 2003, 11:16pm
The fan on the side of the case would probably be a cheaper & easier option to start with – it would save me removing my MB to get a new HS on.

I haven't got a Dremmel (wierd electric cutting type tool) - can you recommend a manual type saw? I've got an assortment of hacksaws but the frames holding the blade aren’t really conducive to cutting out a 120mm diameter hole.

Any manual methods/tools you’ve used that you guys can recommend?

Plec
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dydx
Icrontic Posting Maniac
dydx
329 Posts
20 Jun 2003, 11:48pm
You can either drill a load of holes close together and cut it that way with pliars or something, youll have to file it down to get any kind of acceptable finish.

The best way however has to be the holesaw. Grab a 120mm holesaw, theyre quite cheap, some cutting oil, and a WIRED drill, a drill press would be even better, and cut it out. With this method only a little filing will be required.

Either way, mesure twice cut once, and use plenty of masking tape or youll need a new paint job.


mD
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Plec
Icrontic Regular
Plec
45 Posts
21 Jun 2003, 12:00am
The hole saw sounds like the way to go - had no idea they went up to that size. (Thanks for the masking tape tip.)

The other thing would be an air filter (as i will be blowing air onto the HS). Is there a specialist material i can use - or perhaps some generic piece of material electricians/techys use that i don't know the name of?

Thanks again for all the help guys.

Plec
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dydx
Icrontic Posting Maniac
dydx
329 Posts
21 Jun 2003, 12:22am
Ive tried using foam before as a filter, but it restricts airflow because i cant get thin enough foam.

Head on over to:

http://www.kustompcs.co.uk/product.php?subcat=17

Theyve got the generic ones and some fancy metal ones that look pretty cool too, bit more expensive though.

The guys at Kustom are great. Bit pricey but you cant fault the service.

Another tip for cutting blowholes is to use a T square to get the holes straight, and square to the edge of the panel, or the mod will look tacky.


mD
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Plec
Icrontic Regular
Plec
45 Posts
21 Jun 2003, 12:59am
Excellent, thanks dydx - for the link & the additional tips.

Really appreciate all the responses to this thread - think i'm sorted.

I'll fit the side panal fan over the CPU area, using ur drill/saw method. Then replace my 2 existing case fans for silent, slower fans. And then finally replace this aging PSU for a silent PSU - which, i hopefully will be able to run on silent mode thanks to the added side fan.

Perhaps then, i'll have a cool, semi silent system.

Plec
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dydx
Icrontic Posting Maniac
dydx
329 Posts
21 Jun 2003, 1:12am
Cut the fan hole covers off too, these produce a fair bit of noise, and block airflow.

The acoustic padding stuff from Kustom cuts a fair bit of noise aswell.


mD
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Plec
Icrontic Regular
Plec
45 Posts
21 Jun 2003, 7:07pm
Thanks for all the advice dydx.

I'l prolly attempt this mod within the next couple of months when i plan on getting a silent PSU.

Additional: I got the SATA drive installed plus partitions with nps what-so-ever (to date) - thanks again for your help on that thread too.

Plec
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