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Deano12345 · 13-11-2009, 19:53

My motherboard temps have been a little on the high side (mid 40's in BIOS) but I cant get any more computer stuff till christmas.I was sitting around today and was thinking about if I could use the spare CM 120mm that I have to cool the mothboard down a little.All the predrilled holes aren't in the right places so I improvised.

And heres one with the Drive bay covers on

Its working a charm at the moment,dropped my CPU temp by 2 degrees and my motherboard by 8

PogMoThoin · 14-11-2009, 14:39

But my guess is its heating up somewhere else, having 2 fans blowing in and only one blowing out is only going to create hotspots. You can only blow in whats being sucked out. To even the balance You need to add another fan to the rear to expel the heat, you want to keep the exhaust fans at a higher flow rate then your intake, to insure that the hot air leaves your case and is replenished by nice cool air. This is the reason the front fan was low, to get cool air to the gpu then the cpu cooler (heat rises), now the gpu isn't getting the heat out

http://www.svc.com/generalcoolingguide.html

Deano12345 · 14-11-2009, 14:55

Quote:

Originally Posted by PogMoThoin

But my guess is its heating up somewhere else, having 2 fans blowing in and only one blowing out is only going to create hotspots. You can only blow in whats being sucked out. To even the balance You need to add another fan to the rear to expel the heat, you want to keep the exhaust fans at a higher flow rate then your intake, to insure that the hot air leaves your case and is replenished by nice cool air. This is the reason the front fan was low, to get cool air to the gpu then the cpu cooler (heat rises), now the gpu isn't getting the heat out

http://www.svc.com/generalcoolingguide.html

I had 2 exhausts and only the one intake,so I was just balancing things out

PogMoThoin · 14-11-2009, 15:03

Quote:

Originally Posted by Deano12345

I had 2 exhausts and only the one intake,so I was just balancing things out

Ok, I'll shut up now

Deano12345 · 14-11-2009, 15:12

Quote:

Originally Posted by PogMoThoin

Ok, I'll shut up now

Haha

leninbenjamin · 14-11-2009, 15:22

Quote:

Originally Posted by PogMoThoin

But my guess is its heating up somewhere else, having 2 fans blowing in and only one blowing out is only going to create hotspots. You can only blow in whats being sucked out. To even the balance You need to add another fan to the rear to expel the heat, you want to keep the exhaust fans at a higher flow rate then your intake, to insure that the hot air leaves your case and is replenished by nice cool air. This is the reason the front fan was low, to get cool air to the gpu then the cpu cooler (heat rises), now the gpu isn't getting the heat out

http://www.svc.com/generalcoolingguide.html

hmm, i thought it was the other way around? that you want to create more pressure inside the case in order to push the air through the system components... I know this is the case in my HAF, the two intakes create 220CFM whereas the exhausts 170CFM.

L31mr0d · 14-11-2009, 15:48

Quote:

Originally Posted by leninbenjamin

hmm, i thought it was the other way around? that you want to create more pressure inside the case in order to push the air through the system components..

I was under the same impression. I've always configured my systems to have a high positive pressure rather than negative (i.e more intake than out take.) and it's always worked for me.

Also, OP, nice mod. It was one of the first one I did myself when I started building PC's.

This is the 12cm fan mod I did after the 8cm fan mod I did before it wasn't cooling enough:

http://www.boards.ie/vbulletin/showp...52&postcount=1

Let us know if it helps with your chipset temps. Have you already reseated your chipset heatsinks with a better TIM?

Also. I'd recommend modding a fan into the side of your case, blowing down on the chipset itself would help a lot more than blowing across it.

One last quick mod would to but some form of dampening material at the top and bottom of that 12cm fan to stop reverberation inside your case which will make it noisier. Some little pieces of styrofoam would probably work.

Deano12345 · 14-11-2009, 16:02

Quote:

Originally Posted by L31mr0d

I was under the same impression. I've always configured my systems to have a high positive pressure rather than negative (i.e more intake than out take.) and it's always worked for me.

Also, OP, nice mod. It was one of the first one I did myself when I started building PC's.

This is the 12cm fan mod I did after the 8cm fan mod I did before it wasn't cooling enough:

http://www.boards.ie/vbulletin/showp...52&postcount=1

Let us know if it helps with your chipset temps. Have you already reseated your chipset heatsinks with a better TIM?

Also. I'd recommend modding a fan into the side of your case, blowing down on the chipset itself would help a lot more than blowing across it.

One last quick mod would to but some form of dampening material at the top and bottom of that 12cm fan to stop reverberation inside your case which will make it noisier. Some little pieces of styrofoam would probably work.

Dont need to mod my side,it already has pre drilled holes for 1x200mm fan or 2x120.Do agree that might help though.

Reseating the heatsink is awkward too,I have to take out my HSF to get at my NB cooler.

You cant tell from that pic,but that fan is atually suspened so theres no noise other than the fan itself

It dropped my chipset temps 8 degrees and my CPU by 2

Anti · 14-11-2009, 16:10

i like the mod, good idea: )

Deano12345 · 14-11-2009, 16:16

Quote:

Originally Posted by Anti

i like the mod, good idea: )

Thanks Anti

Also,for anyone wanting to try this,the metal in the drives bays is sharp so be careful,you dont cut yourself to bits,my hands have little cuts all over for them.

Ahh,the things us modders do

Venom · 18-11-2009, 19:14

Speaking of fans, anyone know the best place to get 2 230 x 200 x 30mm - Red LED case fans for a HAF 932?

Anti · 18-11-2009, 21:15

you tried pc-look.com ?

They have a huge section of fans. Just had a quick look and they do infact stock them

http://www.pc-look.com/boutik/Prod_C..._28874_en.html

Venom · 18-11-2009, 22:11

Quote:

Originally Posted by Anti

you tried pc-look.com ?

They have a huge section of fans. Just had a quick look and they do infact stock them

http://www.pc-look.com/boutik/Prod_C..._28874_en.html

Ta mate will keep an eye out for when they back in stock

Wonder wtf CM dont sell them direct in there shop

Anti · 19-11-2009, 00:12

ask and ye shall receive

Front: 230 x 30 mm red LED fan x 1, 700 RPM, 110 CFM, 19 dBA

Side: 230 x 30 mm standard fan x 1, 700 RPM, 110 CFM, 19 dBA (support 120 x 25 fan x 4)

Top: 230 x 30 mm standard fan x 1, 700 RPM, 110 CFM, 19 dBA (support 120 mm fan x 3 or 120 mm x 1 + 230 x 30 mm x 1)

Rear: 140 x 25 mm standard fan x 1, 1200 RPM, 60 CFM, 17 dBA (support 120 mm fan x 1), 35,000 hours life expectancy

13-11-2009, 19:53	#1
Deano12345 Registered User Join Date: Sep 2009 Posts: 1,264 Adverts \| Friends	120mm mounted in 3 x 5.25'' Bays My motherboard temps have been a little on the high side (mid 40's in BIOS) but I cant get any more computer stuff till christmas.I was sitting around today and was thinking about if I could use the spare CM 120mm that I have to cool the mothboard down a little.All the predrilled holes aren't in the right places so I improvised. And heres one with the Drive bay covers on Its working a charm at the moment,dropped my CPU temp by 2 degrees and my motherboard by 8

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14-11-2009, 14:39	#2
PogMoThoin Closed Account Join Date: Jun 2006 Posts: 13,650 Adverts \| Friends	But my guess is its heating up somewhere else, having 2 fans blowing in and only one blowing out is only going to create hotspots. You can only blow in whats being sucked out. To even the balance You need to add another fan to the rear to expel the heat, you want to keep the exhaust fans at a higher flow rate then your intake, to insure that the hot air leaves your case and is replenished by nice cool air. This is the reason the front fan was low, to get cool air to the gpu then the cpu cooler (heat rises), now the gpu isn't getting the heat out http://www.svc.com/generalcoolingguide.html

14-11-2009, 16:10	#9
Anti Banned Join Date: Apr 2004 Location: 44 75 62 6c 69 6e Posts: 10,802 Adverts \| Friends	i like the mod, good idea: )

18-11-2009, 19:14	#11
Venom Registered User Join Date: Feb 1998 Posts: 4,144 Adverts \| Friends	Speaking of fans, anyone know the best place to get 2 230 x 200 x 30mm - Red LED case fans for a HAF 932?

18-11-2009, 21:15	#12
Anti Banned Join Date: Apr 2004 Location: 44 75 62 6c 69 6e Posts: 10,802 Adverts \| Friends	you tried pc-look.com ? They have a huge section of fans. Just had a quick look and they do infact stock them http://www.pc-look.com/boutik/Prod_C..._28874_en.html

19-11-2009, 00:12	#14
Anti Banned Join Date: Apr 2004 Location: 44 75 62 6c 69 6e Posts: 10,802 Adverts \| Friends	ask and ye shall receive Front: 230 x 30 mm red LED fan x 1, 700 RPM, 110 CFM, 19 dBA Side: 230 x 30 mm standard fan x 1, 700 RPM, 110 CFM, 19 dBA (support 120 x 25 fan x 4) Top: 230 x 30 mm standard fan x 1, 700 RPM, 110 CFM, 19 dBA (support 120 mm fan x 3 or 120 mm x 1 + 230 x 30 mm x 1) Rear: 140 x 25 mm standard fan x 1, 1200 RPM, 60 CFM, 17 dBA (support 120 mm fan x 1), 35,000 hours life expectancy