Fan blowing on to hardware?

jrockpunk1 · 05-29-2009, 05:07 AM

So, my specs are under my name. I have a corsair TX 850W PSU on the top-back of my case, sucking in through the bottom and lowing out the back. I also have a side fan on the case which blows air on to the hardware such as the graphics card and CPU. There is also another fan at the front-bottom to blow air onto my Hard-Drive. So really it's the general airflow:

except with an extra fan on the side to cool things down.

However, I also have another fan on the rear of the case just below my PSU, in line with my CPU. Now, this fan blows on to the CPU and has different speed settings. Surely this will make it so the hot air just keeps circulating in there? That's the way the man that built it did it. Is it better to have it so it sucks the air out? Is there any way to get that fan to do so, or would I need a new fan?

Tumbleweed36 · 05-29-2009, 05:26 AM

Hi,

This might help:

Suggested Fan Placement and Cooling

CPU/Heatsink fan blowing down on heatsink

Fan in front of case pulling in cool air

Fan in rear of case pulling hot air out of the case and blowing out the back

Fan on top pulling warm air out of the case (heat rises)

Most instances, side case fans pulling cool air into the case with the exception of any very near the top of the case to take advantage of the hot air rises scenario.

Smooth air flow front to back in case

Other Considerations:

Move ribbon cables out of the air flow area if possible

Suggest round IDE cables for best air flow

Post back with questions/concerns.

jrockpunk1 · 05-29-2009, 06:29 AM

Thanks. Is there any way to get the fan sucking the hot air out of the case? Coud I just unscrew it and turn it around?

Tumbleweed36 · 05-29-2009, 07:34 AM

Yep, that is what you need to do, just take the screws out, turn it around and ala, you are in business.

jrockpunk1 · 05-29-2009, 08:32 AM

Thanks, I did it. Only thing is, the "suction power" (for want of a better word) doesn't seem very strong; I could hardly feel it, and the GPU temp has rose, but only by 1C. Are there any fans created for the sole purpose of blowing on to hardware, and aren't good at sucking out the hot air?

[edit]
Actually I noticed I'd turned my GPU fan speed down by accident. Now it's about 1C cooler than what it was before :D

jrockpunk1 · 05-29-2009, 09:29 AM

Sorry for the double post, I have another question. Currently I have an 80mm fan on the side (it's 80mm from top left to top right screw - 80mm length). There aren't any more screws on the side, but is there a way I could fit a larger fan on the side? Are there any "stick-on" fans, or something of the like that I could use, and how much would it benefit?

Tumbleweed36 · 05-29-2009, 10:35 AM

Most of those fans, you can just drill holes for them and fit them in if there is an air grill there to vent the air flow (in or out). I like the 120mm fans, they run slower than the 80mm, therby making less noise and they blow a whole lot more air. My favorite is the Antec Tri-Cool 3 speed fans.

jrockpunk1 · 05-29-2009, 11:21 AM

Yeah but There's a glass window on the side with various pieces of metal. The case side was designed to only hold that sized fan.

[edit]
Damn I've just realised how stupid that is. Basically, I can't get any bigger then because the only "mesh" to suck air from is big enough for the 80mm.

Tumbleweed36 · 05-29-2009, 01:33 PM

Unless you want to do some surgery and make the hole bigger and mesh it, you are stuck with the 80mm one. It will most likely do the job for you anyway, so don't sweat the small stuff and that is small stuff.

jrockpunk1 · 05-29-2009, 01:59 PM

OK well currently I've got an 80mm on the side and lower front, and I think a smaller one that sucks out on the back. Would it benefit me upgrading the front and back fans to I think it's 120mm? How much would it benefit?

Tumbleweed36 · 05-29-2009, 07:24 PM

The most important one is the one in the back, and the one in the front is next in importance. Don't think the side fans are worth messing with. If you have a place for the 120's over the 80's in the front and back, you will see computer that is quieter and more air flow which normally translates to a cooler rig. There are no downsides unless you have to overhaul the case to get that done. Then, I am not sure it is worth it unless you have serious heating problems.

adrianparke2002 · 06-05-2009, 05:55 PM

heres how i set mine up and its fairly cool and keeping my cpu cool

1 fan pull air on hd's

1 rear fan pull in air

1 side fan pull in air

air vents though vent holes i have in my case and the 120mm fan i have in my 650watt power king psu sucks the air out of it

semphron 2800+ socket 462 a 2.0ghz cpu runs 100 degree under pressure 88-90 in idle

case temp 80-90 degree

hd1-3 77-80 degree

fairly cool - warm in mine doesnt over heat though, fast though for me due to the psu i put in

jrockpunk1 · 06-05-2009, 06:23 PM

nah, I've figured it out. I'm going to cover up the PCI covers under the graphics card, get a new CPU heatsink, have one 120mm exhaust fan under the PSU, 2 intake 120mm fans near HDD and my 90mm intake on the side.

Tumbleweed36 · 06-05-2009, 06:29 PM

As long as it works for you, but I don't agree with one fan in back pulling hot air out of the case and one pulling in cool air. I think both should be pulling hot air out of the case.

BTW, please quote temps as Celsius when you talk about how warm things are so we are all on the same page.

jrockpunk1 · 06-06-2009, 03:35 AM

No, you don't get me, maybe I confused exhaust and intake up. I'm having the PSU to pull the air out of the case, and one 120mm underneath that on the back pulling the air out as well. Everything on the back is pulling air out, and I'm going to cover up the exposed PCI covers underneath my GPU. I'll also be having 2 fans on the front, and one on the side, and they will all pull the air in.

Tumbleweed36 · 06-06-2009, 04:16 AM

That is great, you have it right.

**forcifer** · 06-06-2009, 12:04 PM

just one more little thing:

judging from what i have read, it sounds like you have negative air pressure (more air is being sucked out then sucked in). im not sure if this is true, but if it is you may want to find some way of covering up those ventilation holes in the back because they will suck in air, not allowing the air to move out. this will also make your case very dusty. however, i do not know the speeds of your fans, so i cannot say for sure if this is true or not

jrockpunk1 · 06-06-2009, 03:26 PM

there is only one on the back, not including the PSU. The rest (one on the side, and soon to be 2 at the front) take in air, but yes I'll cover up the slots anyway,

**forcifer** · 06-06-2009, 11:57 PM

actually if you have more intake then outtake, i would leave them uncovered. hot air will be leaving them

jrockpunk1 · 06-07-2009, 04:57 AM

Well, ATM there are 2 fans intake, and 1 fan outtake as well as the PSU, but soon it will be 3 intake.

05-29-2009, 05:07 AM	#1 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Fan blowing on to hardware? So, my specs are under my name. I have a corsair TX 850W PSU on the top-back of my case, sucking in through the bottom and lowing out the back. I also have a side fan on the case which blows air on to the hardware such as the graphics card and CPU. There is also another fan at the front-bottom to blow air onto my Hard-Drive. So really it's the general airflow: except with an extra fan on the side to cool things down. However, I also have another fan on the rear of the case just below my PSU, in line with my CPU. Now, this fan blows on to the CPU and has different speed settings. Surely this will make it so the hot air just keeps circulating in there? That's the way the man that built it did it. Is it better to have it so it sucks the air out? Is there any way to get that fan to do so, or would I need a new fan?

05-29-2009, 05:26 AM	#2 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? Hi, This might help: Suggested Fan Placement and Cooling CPU/Heatsink fan blowing down on heatsink Fan in front of case pulling in cool air Fan in rear of case pulling hot air out of the case and blowing out the back Fan on top pulling warm air out of the case (heat rises) Most instances, side case fans pulling cool air into the case with the exception of any very near the top of the case to take advantage of the hot air rises scenario. Smooth air flow front to back in case Other Considerations: Move ribbon cables out of the air flow area if possible Suggest round IDE cables for best air flow Post back with questions/concerns. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

05-29-2009, 06:29 AM	#3 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? Thanks. Is there any way to get the fan sucking the hot air out of the case? Coud I just unscrew it and turn it around?

05-29-2009, 07:34 AM	#4 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? Yep, that is what you need to do, just take the screws out, turn it around and ala, you are in business. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

05-29-2009, 08:32 AM	#5 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? Thanks, I did it. Only thing is, the "suction power" (for want of a better word) doesn't seem very strong; I could hardly feel it, and the GPU temp has rose, but only by 1C. Are there any fans created for the sole purpose of blowing on to hardware, and aren't good at sucking out the hot air? [edit] Actually I noticed I'd turned my GPU fan speed down by accident. Now it's about 1C cooler than what it was before :D Last edited by jrockpunk1; 05-29-2009 at 08:35 AM.

05-29-2009, 09:29 AM	#6 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? Sorry for the double post, I have another question. Currently I have an 80mm fan on the side (it's 80mm from top left to top right screw - 80mm length). There aren't any more screws on the side, but is there a way I could fit a larger fan on the side? Are there any "stick-on" fans, or something of the like that I could use, and how much would it benefit?

05-29-2009, 10:35 AM	#7 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? Most of those fans, you can just drill holes for them and fit them in if there is an air grill there to vent the air flow (in or out). I like the 120mm fans, they run slower than the 80mm, therby making less noise and they blow a whole lot more air. My favorite is the Antec Tri-Cool 3 speed fans. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

05-29-2009, 11:21 AM	#8 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? Yeah but There's a glass window on the side with various pieces of metal. The case side was designed to only hold that sized fan. [edit] Damn I've just realised how stupid that is. Basically, I can't get any bigger then because the only "mesh" to suck air from is big enough for the 80mm. Last edited by jrockpunk1; 05-29-2009 at 11:23 AM.

05-29-2009, 01:33 PM	#9 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? Unless you want to do some surgery and make the hole bigger and mesh it, you are stuck with the 80mm one. It will most likely do the job for you anyway, so don't sweat the small stuff and that is small stuff. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

05-29-2009, 01:59 PM	#10 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? OK well currently I've got an 80mm on the side and lower front, and I think a smaller one that sucks out on the back. Would it benefit me upgrading the front and back fans to I think it's 120mm? How much would it benefit?

05-29-2009, 07:24 PM	#11 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? The most important one is the one in the back, and the one in the front is next in importance. Don't think the side fans are worth messing with. If you have a place for the 120's over the 80's in the front and back, you will see computer that is quieter and more air flow which normally translates to a cooler rig. There are no downsides unless you have to overhaul the case to get that done. Then, I am not sure it is worth it unless you have serious heating problems. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

06-05-2009, 05:55 PM	#12 (permalink)
adrianparke2002 Registered User Join Date: Jun 2009 Posts: 62 OS: windows xp service pack 2	Re: Fan blowing on to hardware? heres how i set mine up and its fairly cool and keeping my cpu cool 1 fan pull air on hd's 1 rear fan pull in air 1 side fan pull in air air vents though vent holes i have in my case and the 120mm fan i have in my 650watt power king psu sucks the air out of it semphron 2800+ socket 462 a 2.0ghz cpu runs 100 degree under pressure 88-90 in idle case temp 80-90 degree hd1-3 77-80 degree fairly cool - warm in mine doesnt over heat though, fast though for me due to the psu i put in

06-05-2009, 06:23 PM	#13 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? nah, I've figured it out. I'm going to cover up the PCI covers under the graphics card, get a new CPU heatsink, have one 120mm exhaust fan under the PSU, 2 intake 120mm fans near HDD and my 90mm intake on the side.

06-05-2009, 06:29 PM	#14 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? As long as it works for you, but I don't agree with one fan in back pulling hot air out of the case and one pulling in cool air. I think both should be pulling hot air out of the case. BTW, please quote temps as Celsius when you talk about how warm things are so we are all on the same page. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

06-06-2009, 03:35 AM	#15 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? No, you don't get me, maybe I confused exhaust and intake up. I'm having the PSU to pull the air out of the case, and one 120mm underneath that on the back pulling the air out as well. Everything on the back is pulling air out, and I'm going to cover up the exposed PCI covers underneath my GPU. I'll also be having 2 fans on the front, and one on the side, and they will all pull the air in.

06-06-2009, 04:16 AM	#16 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,467 OS: XP Professional	Re: Fan blowing on to hardware? That is great, you have it right. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

06-06-2009, 12:04 PM	#17 (permalink)
forcifer Registered User Join Date: Nov 2005 Location: Kansas City kansas Posts: 3,619 OS: Vista Premium 32 My System Blog Entries: 1	Re: Fan blowing on to hardware? just one more little thing: judging from what i have read, it sounds like you have negative air pressure (more air is being sucked out then sucked in). im not sure if this is true, but if it is you may want to find some way of covering up those ventilation holes in the back because they will suck in air, not allowing the air to move out. this will also make your case very dusty. however, i do not know the speeds of your fans, so i cannot say for sure if this is true or not __________________ now i remember

06-06-2009, 03:26 PM	#18 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? there is only one on the back, not including the PSU. The rest (one on the side, and soon to be 2 at the front) take in air, but yes I'll cover up the slots anyway,

06-06-2009, 11:57 PM	#19 (permalink)
forcifer Registered User Join Date: Nov 2005 Location: Kansas City kansas Posts: 3,619 OS: Vista Premium 32 My System Blog Entries: 1	Re: Fan blowing on to hardware? actually if you have more intake then outtake, i would leave them uncovered. hot air will be leaving them __________________ now i remember

06-07-2009, 04:57 AM	#20 (permalink)
jrockpunk1 Registered User Join Date: Dec 2007 Posts: 487 OS: winXP My System	Re: Fan blowing on to hardware? Well, ATM there are 2 fans intake, and 1 fan outtake as well as the PSU, but soon it will be 3 intake.