Is one fan enough?

zax · Post by **zax** » Tue Jun 17, 2008 3:34 pm

Hello

I wonder if anyone can help. Is a single Scythe Slipstream 800rpm at the top back of a P182 sufficient to cool the following build:

Antec P182
Intel E8400
Thermalright HR-01 Plus (with no fan)
Abit IP35 Pro
Enermax modu425
WD Caviar GP 500Gb
Sapphire HD 2400 XT (with no fan)
2x2Gb Corsair XMS2 DDR2 PC-6400 DHX

I am not a gamer so won't be thrashing the computer. Thanks in advance for any advice.

Regards

Zax

elemental · Post by **elemental** » Tue Jun 17, 2008 4:12 pm

Eeee. I seriously doubt it! How hot is your house, and is that PSU also fanless?

andyb · Post by **andyb** » Tue Jun 17, 2008 4:32 pm

Read my Sig, 3 fans is easily doable but like me you will need a fan on your CPU.

As Elemental pointed out, your system wont be a 1-fan affair anyway as the PSU also has one.

Andy

Post by **NeilBlanchard** » Tue Jun 17, 2008 5:52 pm

Hello,

I think you can do it with the one case fan, if you block off the top fan grill, and undervolt the E8400. If you need to get lower temps, you can duct the HR-1Plus.

elemental · Post by **elemental** » Tue Jun 17, 2008 8:27 pm

hm, my worry is that if he doesn't duct the CPU, a single exhaust fan wouldn't be enough to cool all the passive heatsinks in his system, and if he did duct the CPU heatsink his GPU temps would go through the roof. i'm not sure how 8600s are for temps, but in my P182 my Accelero S1-cooled 8800GT gets hot rapidly if it loses its air supply (for example, if i were to shortcircuit the airflow by opening the top vent without turning the fan on). it's not catastrophic, but it's easily a 8-degree difference at idle (from 54C to 62C)

zax · Post by **zax** » Tue Jun 17, 2008 11:41 pm

Thanks for the replies guys. The Enermax does of course have a fan so sorry for the confusion by referring to "one fan". I meant one fan apart from the PSU one.

It sounds, however, like you guys have doubts that one case fan in addition to the PSU one is sufficient. In that case, what extra fans would you recommend? Would, for example, a fan on the Thermalright be enough or should I use one of the other case fans as well? Also does the graphics card need an Accelero?

I am looking to avoid having fans I don't need (becaiuse of noise) but I am more than happy to include fans that are necessary.

Thanks in advance,

Zax

jaganath · Post by **jaganath** » Wed Jun 18, 2008 12:58 am

I think it's doable if you get a 1200rpm Slipstream. I don't know why people are talking about 8600's and 8800GT, he has a HD2400XT which uses less than 20W max, not even in the same ballpark.

andyb · Post by **andyb** » Wed Jun 18, 2008 5:22 am

I think it's doable if you get a 1200rpm Slipstream.

2x slow (5v) fans will still be quieter than a single 1200 rpm slipstream, I hated mine @ 1200 rpm, my system is now much quieter with it running @ 720rpm (5v), so yes it is doable with a single fan (in the top section), but can it be done quietly, i.e. @ 5v

Andy

jhhoffma · Post by **jhhoffma** » Wed Jun 18, 2008 7:08 am

jaganath wrote:I think it's doable if you get a 1200rpm Slipstream. I don't know why people are talking about 8600's and 8800GT, he has a HD2400XT which uses less than 20W max, not even in the same ballpark.

Agreed, along with a Fanmate 2 or something to easily slow the speed down to below 1000rpm (sweet spot). 800rpm is dead quiet but sometimes doesn't move enough air and 1200rpm is too loud.

elemental · Post by **elemental** » Wed Jun 18, 2008 10:26 am

Huh, I have no idea why I thought he was using a 8600. Maybe cuz I'm helping my best friend build and we're considering an 8600 for her *LOL* Okay, well, if it's an HD 2600XT, maybe one fan would be possible! I think a 1200 Slipstream @ 1000rpm is a good idea though, because the 800rpm fans barely move air at all

jhhoffma · Post by **jhhoffma** » Wed Jun 18, 2008 11:57 am

elemental wrote:Huh, I have no idea why I thought he was using a 8600. Maybe cuz I'm helping my best friend build and we're considering an 8600 for her *LOL* Okay, well, if it's an HD 2600XT, maybe one fan would be possible! I think a 1200 Slipstream @ 1000rpm is a good idea though, because the 800rpm fans barely move air at all

I wouldn't say barely...they move almost as much air as a Nexus 120mm at 12v and SPCR tested it as performing better.

zax · Post by **zax** » Wed Jun 18, 2008 2:36 pm

Thanks for all the comments. I am reluctant to use a single 1200 rpm fan because I think it would be audible since I prefer not to adjust fan speeds or undervolt.

If I am going to use an 800rpm fan on the case, the comments suggest to me that I need additional cooling. I am inclined to stick another 800rpm fan on the CPU heatsink since that would give the extra cooling without, hopefully, being audible. My current thinking, therefore, is to use two 800rpm Slipstreams, one on the case and one on the CPU heatsink.

Please advise if I am missing something and you think this will be audible or inadequate for cooling the E8400. And thanks once again for taking the time to respond to my initial post.

Vicotnik · Post by **Vicotnik** » Wed Jun 18, 2008 8:03 pm

I cool my upper chamber with a single Slip Stream @ ~700RPM. It works just fine.

But I think the Ninja is better suited for semi passive cooling than the HR-01 Plus.

kieran45 · Post by **kieran45** » Wed Jun 18, 2008 10:47 pm

It really depends on what you are intending to use it for. You say you are not a gamer, and if you don't do anything that is too CPU intensive that would be fine.

I run my system (E6750 with ninja - no fan, 8600GT with accelero S2, 320GB 2.5" HDD, Corsair HX520, Sonata III) using only a Nexus at 800RPM as an exhaust. The sonata does mean that the PSU fan does give a little more airflow to the case than your P182 though.

I don't do much gaming (do like lego indiana jones though) and don't do anything much more strenouous than a bit of video conversion every now and then.

CPU idles at mid 30's and VGA at low 40's. I haven't bothered to stress test as I never push it that hard, but with video recoding and playing a game simultaneously, both get up to high 50's.

Getting an accelero for the vid card would mean the card would stay cooler, but the same amount of heat is still going to be released into the case, so case temp and CPU temps would be unchanged.

You can always try a single fan anyway, slipstreams are pretty cheap, so get a couple and see how low you can go.

Post by **MikeC** » Thu Jun 19, 2008 12:06 am

Vicotnik wrote:But I think the Ninja is better suited for semi passive cooling than the HR-01 Plus.

The HR-01 Plus has a better mounting system and cools better than current Ninjas with low airflow.

Vicotnik · Post by **Vicotnik** » Thu Jun 19, 2008 12:09 am

MikeC wrote:The HR-01 Plus has a better mounting system and cools better than current Ninjas with low airflow.

Good. Then it should work fine with no dedicated fan.

XIUYAN1 · Post by **XIUYAN1** » Sat Jun 28, 2008 6:17 am

Very great~!
Keep up the great work~!

ntavlas · Post by **ntavlas** » Sat Jun 28, 2008 12:02 pm

It depends on your room temps of course but it should be possible to cool your system with a single 800rpm fan, especially when running undemanding programs.

The ninja is good value but I have to agree that a good mounting system is an attractive proposition. Still not sure about which is the best in this scenario though. Low air restriction could mean that the single fan will be able to better cool the rest of the system.