 Both Laptop Fans Wont Come On |
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 Apr 13 2008, 01:20 AM
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#1
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New Member  Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690  |
A few months ago, the screen went completly white, and overheated. I turned it back on like 12 hours later, and it worked just fine. Or so I thought it did at least, I was listening to it, and the graphics card fan, and the cpu fan were both not turning on. I tested the fans in it, and they work fine, so the problem is not the fan itself. I also tried buying a motherboard off ebay, and that still didnt fix the problem. If you have any ideas on how to fix this, please tell me. This post has been edited by Toadsae: Apr 13 2008, 09:57 AM |
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Apr 13 2008, 12:05 PM
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#2
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 Computer Masochist Group: Moderator Posts: 22,937 Joined: 27-January 07 From: Cleveland, Ohio Member No.: 108,618 |
Got a voltmeter? Check the voltages at the fan plugs
-------------------- Mark
 why won't my laptop work? Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits Become a BleepingComputer fan: Facebook and Twitter |
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Apr 13 2008, 09:57 PM
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#3
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
Nah, I dont have one. I just put a new motherboard in it though, and a brand new fan.
I tried one other thing though. I unplugged the hardrive, and turned it on... still didnt come on I took the graphics card out, the fans still didnt come on. I unplugged the processor.. lol, the computer didnt stay on for longer than 3 seconds, the fans didnt try to come on though If I unplug everything at once, and just make it a motherboad with only the fans connected, will the fans come on? |
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Apr 13 2008, 11:02 PM
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#4
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Arachibutyrophobia Group: BC Advisor Posts: 6,407 Joined: 4-March 05 From: Northern Sierra Foothills, Ca. Member No.: 13,532 |
Edit: The fact that this is a laptop didn't register. Doh...
This post has been edited by dc3: Apr 14 2008, 06:18 AM -------------------- May we please have a little chlorine for the gene pool?
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Apr 13 2008, 11:23 PM
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#5
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
LoL, wait, this isnt a desktop PC, this is a dell laptop. And I tried to remove the Processor, not the PSU. The PSU is built into the motherboard I guess.
Anyways, thanks for the response though, I dont think I can bypass this that way on a laptop. |
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Apr 14 2008, 07:23 AM
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#6
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Computer Masochist Group: Moderator Posts: 22,937 Joined: 27-January 07 From: Cleveland, Ohio Member No.: 108,618 |
I don't see how unplugging anything is going to make the fans work. That doesn't make any sense. The only way to know if power is reaching the fans is to check the solder traces on the system board with a voltmeter.
Buying a motherboard off eBay is a crapshoot. I've had success, but you never know. How do you overheat a LCD screen? This post has been edited by garmanma: Apr 14 2008, 07:24 AM -------------------- Mark
why won't my laptop work? Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits Become a BleepingComputer fan: Facebook and Twitter |
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Apr 14 2008, 08:47 AM
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#7
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
I just figured there could be another problems besides the motherboard thats stopping the fans from working. I mean, I already know the fans work, I bought a brand new one from a store just to test it, as well as an additional fan off of ebay. I already know I'm not getting any voltage from the motherboard. I mean unless the guy gave me a motherboard with the exact same problem as mine, couldnt there be something else stopping the fan from turning on?
Would it be worth it to take the motherboard somewhere... and have them test it, even though I could buy another new one for almost the same price? |
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Apr 14 2008, 04:40 PM
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#8
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Computer Masochist Group: Moderator Posts: 22,937 Joined: 27-January 07 From: Cleveland, Ohio Member No.: 108,618 |
QUOTE(Toadsae @ Apr 14 2008, 09:47 AM)  Would it be worth it to take the motherboard somewhere... and have them test it, even though I could buy another new one for almost the same price? If you don't have the tools or the ability, yes. Go to the small "mom and pop" computer repair. Best Buy will just want to sell you a computer -------------------- Mark
why won't my laptop work? Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits Become a BleepingComputer fan: Facebook and Twitter |
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Apr 15 2008, 01:29 AM
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#9
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
Come on... your thinking too simple here. Ive been looking around, and there appears to be lots of other problems that can go wrong to make laptop fans not turn on. I just need to find someone who has had a similar problem to mine. I know the laptop is reading 0 volts already.. why would I test this.
Oh. QUOTE How do you overheat a LCD screen? You dont, the computer overheated, which inturn caused my computer to crash, and I couldnt do anything at all on it. Then the screen went white. |
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Apr 15 2008, 08:24 AM
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#10
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 You're Bleepin' or you're Weepin' Group: BC Advisor Posts: 1,569 Joined: 12-March 06 From: Momma Member No.: 58,911 |
QUOTE I know the laptop is reading 0 volts already.. why would I test this. Assuming it is apart and cold when doing so, I would think that would be normal. Might want to take a look in the bios cooling fan\temp settings if you haven't already. Went over to the dell forums and there is a couple threads on the e1700, the 9400's american sister, in which the issue was corrected with a bios update. Even though it does not specificly address that issue, the latest bios version download with instructions are here if you wish to give it a try. This post has been edited by HitSquad: Apr 15 2008, 08:29 AM |
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Apr 15 2008, 02:02 PM
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#11
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
Alright, Ill try that, and tell you how it went when I get done. Thanks.
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Apr 16 2008, 12:13 AM
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#12
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New Member Group: Members Posts: 7 Joined: 13-April 08 Member No.: 202,690 |
Yea, It still didnt work. I'm took it to a laptop shop... and I guess they will tell me whats wrong with it ^^. Thanks for the help guys
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