So a friend lent me [url=http://asia.cnet.com/reviews/hardware/notebooks/0,39001748,39015540p,00.htm]his old laptop[/url] for me to clear the CMOS on it because he'd set a BIOS password and forgotten it. So, after I took almost the entire thing apart, and still couldn't find the CMOS battery, I gave up and screwed it back together. While doing so, the keyboard comes loose, and of course, under the top of the keyboard, is the CMOS battery.
So now that the laptop works, it has another problem. I can't watch videos, play games, or anything like that without it overheating. And it's hot to begin with, idling at around 70-75C and the bottom of the laptop being very hot. While watching a video or playing a game, the computer starts beeping, I guess indicating that it's overheating. After a while of doing that, if I don't quit whatever's making it overheat, it shuts off.
I'm thinking that I loosened the processor from its heatsink while disassembling it and they aren't making proper contact now, or the temperature sensors are messed up. I'm thinking the sensors are messed up because of what SpeedFan tells me:
[IMG]http://imgur.com/4H3Ko.png[/IMG]
The peaks in the graph are when I started watching a YouTube video. The temperature didn't fall back to normal until about a minute after stopping the video. What's confusing me is that I don't think the temperatures should jump around like that. When the processor is cooling down, why would it jump from 82C to 74C instantly instead of gradually cooling down? This leads me to believe the temperature sensors are screwed up somehow.
If anyone could help me in fixing this, it'd be much appreciated.
Looks like a broken sensor
Yep. That's a broken sensor.
Thanks for confirming that. Now I just wonder if there's a way to get the BIOS to ignore the sensor? There's no options for it in the BIOS menu. Maybe I should flash it.
Wait you said the underside of the laptop is hot even though you are just on idle? That would seem that the sensor is correct and you need to adjust the heatsink and/or clean it out.
[QUOTE=Thor667;21815370]Wait you said the underside of the laptop is hot even though you are just on idle? That would seem that the sensor is correct and you need to adjust the heatsink and/or clean it out.[/QUOTE]
Can your laptop/pc be 70c and instantly jump to 80c?
Sure, your laptop can be hot, but those lines at the graph are sometimes almost vertically straight.
Yes, the underside of the laptop is hot idling. Maybe both the sensor is broken and the heatsink is messed up.
It sounds more likely to me that the sensor is fine, and just isn't constantly polling the temp. I'd bet that it's only taking readings at set amounts of time, and that's why you see that jump.
[QUOTE=BrQ;21817085]Can your laptop/pc be 70c and instantly jump to 80c?
Sure, your laptop can be hot, but those lines at the graph are sometimes almost vertically straight.[/QUOTE]
Yes it can. And it depends how often those graphs poll for temp change.
[QUOTE=Thor667;21821056]Yes it can. And it depends how often those graphs poll for temp change.[/QUOTE]
Well, I see what you mean, but the OP states that it happens when he watched a youtube movie.
Let's say he watched a four minute video, this part: [img]http://dl.dropbox.com/u/6681840/Screencap/2010-05-09_0034.png[/img] should then represent four minutes, right?
That almost straight line would be like 5 seconds or something. As far as I know, getting a processor from 70 to 80 degrees in just a couple of seconds is hard. Don't quote me on it though.
Maybe OP can tell what the scale approximately is?
With the scale of the graph, yeah, I'd say that's a few minutes. If it matters, I'm thinking that Temp2 (Red line) is the video card, and Temp1 (Green line) is the processor, because once Temp1 hits 75C, the laptop starts beeping.
[QUOTE=BrQ;21822162]Well, I see what you mean, but the OP states that it happens when he watched a youtube movie.
Let's say he watched a four minute video, this part: [img]http://dl.dropbox.com/u/6681840/Screencap/2010-05-09_0034.png[/img] should then represent four minutes, right?
That almost straight line would be like 5 seconds or something. As far as I know, getting a processor from 70 to 80 degrees in just a couple of seconds is hard. Don't quote me on it though.
Maybe OP can tell what the scale approximately is?[/QUOTE]
because we all know temperature has inertia
[QUOTE=BrQ;21822162]That almost straight line would be like 5 seconds or something. As far as I know, getting a processor from 70 to 80 degrees in just a couple of seconds is hard. Don't quote me on it though.[/QUOTE]
Considering an Athlon XP can explode in a few seconds without a heatsink, it's not impossible. If the heatsink on the CPU in the laptop wasn't attached properly and was rattling around and not making proper contact, the CPU temps could vary wildly.
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