Sheepy Posted July 16, 2005 Posted July 16, 2005 Hi, I was woundering can you turn your cpu fan around so it pulls hot air away from cpu?? Also has any body tried this at all? sheepy Quote Share this post Link to post Share on other sites More sharing options...
Nagash Posted July 16, 2005 Posted July 16, 2005 Yes, you can do it. But it does not cool as effectively. However, there have been a few heat sinks that have been designed to have the fan used this way (Alpha comes to mind). Quote Share this post Link to post Share on other sites More sharing options...
Fireonice Posted July 16, 2005 Posted July 16, 2005 you will never no unless you try Quote Share this post Link to post Share on other sites More sharing options...
fire_storm Posted July 16, 2005 Posted July 16, 2005 You can turn it around somtimes it works better then before somtimes it doesn't. Quote Share this post Link to post Share on other sites More sharing options...
Verran Posted July 16, 2005 Posted July 16, 2005 You can do this, but most heatsinks will not cool as effectively with the fan pulling air upwards. The XP-120 actually performs just about the same with the fan either way though, from the tests I've seen. There are a few others too, but most perform much worse. The reason it doesn't work so well is that the air getting sucked up through the heatsink doesn't get to the center of the heatsink as well as it does the outside. The effect is that the outside of the heatsink is cooled well, while the center (or core) stays much hotter. This is very hard to describe in words, but I'm sure some searching will yeild an illustration to show it a little better. Quote Share this post Link to post Share on other sites More sharing options...
Sheepy Posted July 16, 2005 Posted July 16, 2005 I have turned mine around for now, to see what will happen. Before i was hitting temps like 50 to 54 at full load sometimes hotter. I been having major heat problems at the mo with the hot weather so to me anything is worth a try. I have 4 fans on me comp in total. Any idea as to which way they work best. I have fan on top, one on side an one at back an cpu an 2 small fans on hdd Quote Share this post Link to post Share on other sites More sharing options...
CoolMaster Posted July 17, 2005 Posted July 17, 2005 With the Xp-120 I notice like a 1 degree difference that it's almost neglible, but I bet in intense gaming, getting cool air to it, is more important than getting hot air to it? Quote Share this post Link to post Share on other sites More sharing options...
robAP Posted July 17, 2005 Posted July 17, 2005 i have accidentally put on my fan backwards during routine cleaning on a volcano 12+. it was about 4 deg. hotter than normal as a result. i couldnt for the life of me find out why until i took off the side and realized the airflow out from it was battlig the side casefan intake fan....anyway, there you go. 4 deg. for me. Quote Share this post Link to post Share on other sites More sharing options...
Puck Posted July 17, 2005 Posted July 17, 2005 I have 4 fans on me comp in total. Any idea as to which way they work best.I have fan on top, one on side an one at back an cpu an 2 small fans on hdd 510589[/snapback] A "generic" common config for 4 fans would be front intake, rear exhaust, top exhaust, and side intake. Higher fans usually make best exhausts, while lower ones like the front one make better intake fans. Quote Share this post Link to post Share on other sites More sharing options...
IUMaestro Posted July 19, 2005 Posted July 19, 2005 A "generic" common config for 4 fans would be front intake, rear exhaust, top exhaust, and side intake. Higher fans usually make best exhausts, while lower ones like the front one make better intake fans. 511109[/snapback] sry - gotta counter that. intake fans should be stringer since the distance to the cpu is much higher than the exhaust fans... you are right if you've got the upside down MOBO setup. Quote Share this post Link to post Share on other sites More sharing options...
demigod Posted July 19, 2005 Posted July 19, 2005 He meant that fans that are physically higher up on the case make better exhausts, and fans that are lower on the case make better intakes. Quote Share this post Link to post Share on other sites More sharing options...
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