shanenin Posted December 31, 2005 Report Share Posted December 31, 2005 I was working on an old 400mhz p2 laptop. I noticed the case fan only ran when I was in the bios menu. When it was running either linux or windows xp, it(the fan) never turned on. Could this be normal behavior, could it be the computer never got hot enough to turn on? It must have been on a good 10 -15 minutes. I turned it off, I was kind of worried I woudl fry it out. Quote Link to post Share on other sites
Mistabigshot Posted December 31, 2005 Report Share Posted December 31, 2005 It would be kinda hard to change a fan on a laptop. Quote Link to post Share on other sites
TheTerrorist_75 Posted December 31, 2005 Report Share Posted December 31, 2005 Some laptop fans are designed to only run when a certain temperature is reached. I imagine this is to save on the battery. Quote Link to post Share on other sites
shanenin Posted December 31, 2005 Author Report Share Posted December 31, 2005 Some laptop fans are designed to only run when a certain temperature is reached. I imagine this is to save on the battery.that was my thought, but I did not like the thought of the cpu frying while waiting to see if it would turn on. Quote Link to post Share on other sites
TheTerrorist_75 Posted January 1, 2006 Report Share Posted January 1, 2006 It's a P2 that is designed for a laptop. I don't believe it will get too hot. Quote Link to post Share on other sites
fubz Posted January 1, 2006 Report Share Posted January 1, 2006 Its probuly temp related, and if your worried, there should be something in the BIOS to enable it all the time, or change the temp for when it turns on. At least there is for mine. Quote Link to post Share on other sites
CurlingSteve Posted January 1, 2006 Report Share Posted January 1, 2006 (edited) The fans on some of my laptops turn on immediately at power-up then throttle back after the POST or some other temperature monitor takes over.If the laptop doesn't feel hot, I wouldn't be overly concerned.My Dell XPS just jumped from 50 to 70 C according to Everest, but I changed nothing.And a System Restore takes it back to 50.Still tracking down this mystery...------Back up to 70, fans screaming, trying a "ghost" (image backup) from October.------No joy, still reporting hot in Everest, even with the case cold.------Possible solution, stood it on end and tapped.Maybe moved a dust bunny.I did have it open to replace the keyboard (always get an extended warranty for laptops).I thought I blew out all the dust while it was open, but I may have moved a "bunny" to the wrong place. Edited January 1, 2006 by CurlingSteve Quote Link to post Share on other sites
iccaros Posted January 1, 2006 Report Share Posted January 1, 2006 to add,some older laptops (like my compaq 266) has software that tells the fan to come on.. (only ran in dos and windoes 95 ..crashed all the time in 98) I could not find the software (even on compaq's site) .. so I eneded up conneting +5 to the harddrive +5 so it would stay on.. before it would over heat. Quote Link to post Share on other sites
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