Compaq Presario C700 laptop runs very hot
I have a Compaq Presario C700 which runs very hot and sometimes switches itself off. I have opened the laptop to ensure there is no dust or dirt in the fan or fins. I have cleaned and replaced the thermal paste on the heat sink but it can still run at up to 95 degrees Centigrade when running a processor heavy process, such as installing Office.
The air coming from the fan doesn't seem to be that hot so I am wondering whether I should replace the heat sink. Would that be a possible solution?
The air coming from the fan doesn't seem to be that hot so I am wondering whether I should replace the heat sink. Would that be a possible solution?
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Nobus - I am using a program called Core Temp. I ran the laptop overnight last night and the temperature ranged from 22 degrees C to 93 degrees C. At least it didn't switch off!
In Event Viewer I have some events from yesterday from source Kernel Power reporting "The system was shut down due to a critical thermal event"
Re some other comments, I only used a small amount of paste. One processor needs paste and there is a pad on the heat sink for the other one. Stock photo attached.
Compaq-Presario-C700-Series-Cool.jpg
In Event Viewer I have some events from yesterday from source Kernel Power reporting "The system was shut down due to a critical thermal event"
Re some other comments, I only used a small amount of paste. One processor needs paste and there is a pad on the heat sink for the other one. Stock photo attached.
Compaq-Presario-C700-Series-Cool.jpg
Are you sure all the fans are running properly? Are there any options within the BIOS to control fan speed? When you try turning the fan with your finger, can you feel any friction?
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Rindi - only one fan, which is definitely running okay. Nothing in BIOS to control fan.
Then I don't think the heatsink is properly mounted. Make sure all screws are really tight.
"Nothing in BIOS to control fan"
Does the fan speed change at all in use?
Can you override the fan speed with SpeedFan?
If so there is an option and you may be missing a utility from your laptop/chipset manufacturer to enable it.
Does the fan speed change at all in use?
Can you override the fan speed with SpeedFan?
If so there is an option and you may be missing a utility from your laptop/chipset manufacturer to enable it.
ASKER
Does the fan speed change at all in use? Appears to.
Can you override the fan speed with SpeedFan? No - fan doesn't show up in SpeedFan
Can you override the fan speed with SpeedFan? No - fan doesn't show up in SpeedFan
Have you tried remounting the CPU yet?
... Thinkpads_User
... Thinkpads_User
Interesting... - the C700 should support SpeedStep which feeds back temps to the fan controller (it's not a visible option in the BIOS). What's the CPU?
ASKER
The CPU is an Intel Celeron 550 @ 2GHz (this is a spare - not my main PC therefore a little old!)
does your laptop run slow? and is the cpu identified correct?see in:
right click My computer, select properties
right click My computer, select properties
ASKER
I have now run the laptop for nearly 3 days without it switching off so I reckon that, despite the temperature fluctuating between about 40 and 90, that this is the best I am going to get with this model of laptop. Thanks for all the help.
you never answere dmy questions i asked 2 times yet :
does your laptop run slow? and is the cpu identified correct?
also - since i gave you a good answer - why only B grade??
does your laptop run slow? and is the cpu identified correct?
also - since i gave you a good answer - why only B grade??
ASKER
Nobus, Sorry, thought I had answered you. Does the laptop run slow - no, doesn't appear to. Is the cpu identified correctly - Yes.
Re grading I ticked Good because none of the answers I received completely answered my query but the answers were all good. Didn't realise this translated into a B grade!
Re grading I ticked Good because none of the answers I received completely answered my query but the answers were all good. Didn't realise this translated into a B grade!
i still think it can be a bad indication
you could install another OS on that drive, or another drive, to test it out
you could install another OS on that drive, or another drive, to test it out
ASKER
Not sure what you are getting at. I am using the original hard drive but I have done a clean install of Windows 7 HP on the drive.
ha - i was not aware that you posted that
it may be a faulty sensor, or a faulty indication : "The air coming from the fan doesn't seem to be that hot "
modern cpu's will run slower, then shut them selves down when running hot
is yours running slow?