Acer aspire one 722 is running hot

October 5, 2013 at 11:18:17
Specs: Windows 7, 2gb
Have installed a new motherboard in this dual core netbook because the original one was running hot and freezing/crashing. The new motherboard is also running hot (as high as 90 c ). Could it be a faulty fan?

message edited by David Barker


See More: Acer aspire one 722 is running hot

Report •

#1
October 5, 2013 at 12:41:28
I did a little reading and found many people complaining that these do run hot. It has been my experience that ALL "laptop" computers do. This is the reason that most manufacturers now refer to them as notebooks because any use that obscures the vent louvers on the bottom, such as using them on your lap or bed, causes overheating. I would check the fan and the manufacturers specs for heat but I suspect that the real problem is poor design. You might try very carefully drilling some extra vent holes near the heating issue but this could even make the trouble worse as I'm sure the manufacturer has consider air flow in the unit as delivered and allowing air to flow more easily in one place will reduce flow in another.

Report •

#2
October 5, 2013 at 13:07:14
David, why in the world did you think replacing the motherboard would solve your problem?

You may have spent more on the new board than the netbook is worth.

Did you clean off all the thermal paste/pad and apply new according to the instructions for your type of processor?

Your processor is rated at a maximum power consumption of 9 watts, so it shouldn't be a problem keeping it cool.

As was mentioned above, you must run the unit placed on a hard flat surface so as to not impair air flow.


Report •

#3
October 5, 2013 at 13:57:04
Thanks for your response. You may be right but I am alarmed at a cpu temperature of 90c. That seems unsafe and likely to cause damage.

I used arctic silver paste. Perhaps I didnt put enough on. I plan to try again with different thermal paste and apply it a little more liberally. I am going to try that before purchasing a new fan.

The motherboard was bought from ebay as a new product from china. It was very cheap at £30 (approx $60 US) and was supplied without thermal paste or pad. I prepared the cpu by cleaning with isopropyl alcohol before applying the paste.

I am alarmed at the cpu temperature as it has an AMD C50 dual core processor. I also have a Compaq notebook laptop which has exactly the same processor but the cpu peaks at about 58 c as opposed to 90c on the Acer.

message edited by David Barker


Report •

Related Solutions

#4
October 5, 2013 at 13:58:38
Thanks for your response. You may be right, but I am alarmed at a cpu temperature of 90c. This seems abnormal and may cause damage.

Report •

#5
October 5, 2013 at 15:53:43
Applying paste liberally is unwise - it has to spread so that it properly conducts the heat. Too thick and it will act as an insulator.

See the processors instructions and apply the paste exactly how they say (usually either dot or line method).

Always pop back and let us know the outcome - thanks


Report •

#6
October 5, 2013 at 15:56:13
ok. Thanks for that. I think it must be thermal paste related or a fan issue.

Report •

#7
October 5, 2013 at 20:05:01
I was reading something last week about how some of those acers are set up so that they run a little warmer because of how the fans are managed with the Acer software.

my two cents is that the combination between that and the normal lint clog you get on laptops is causing the extra heat.

::mike


Report •

#8
October 6, 2013 at 10:49:00
There may be settings in the BIOS (setup screens) to control when and how the CPU fan runs.

I would guess the heat sink may be installed wrong. As I stated above, the thermal rating of that processor is only 8W. Not very much at all. I am wondering if the fan is running at all.

I couldn't find the proper technique for your processor but I am guessing it is to apply a small dot and then spread it using a business card or similar.

Artic silver is one of the best thermal compounds you can buy.

As mentioned above, be sure the vents are clear and use the unit on a flat, hard surface.

You are correct to be concerned about the 90c temperatures. You are reading in Celsius aren't you?


Report •

#9
October 6, 2013 at 12:09:17
Yes it is a celcius reading. Most of the time the temperature is between about 65 and 74. But it does peak in the 80's and even reached 90 once.

I used a business card to spread the paste. Maybe I did something wrong as a brand new motherboard shouldnt have any issues. I removed the original one because the cpu temperature was high and caused freezes and crashes. The laptop doesnt freeze or crash with the new board but the temperature seems way too high. I suspect the fan . Perhaps it would be wise to buy a second hand one and see if it works normally with a new fan.
Thanks for your efforts and time. Much appreciated.


Report •

#10
October 6, 2013 at 12:13:39
Unusual (although possible) for a fan to run slow. Does it looks as if it is running reasonably well and is it clean? Mostly fans are replaced because they get noise.

Always pop back and let us know the outcome - thanks


Report •

#11
October 6, 2013 at 12:39:42
Yes its clean and dust free. It does run as you can hear it and it speeds up when the temperature rises.

Report •

#12
October 6, 2013 at 12:43:29
Download and install HWMonitor to measure the temperatures and voltages. Possible the voltages are high, which could cause overheating.

HWMonitor also monitors the fan speed. Get it from the link below. HWMonitor runs in real time.

I suspect you may have applied too much thermal compound or you installed the heat sink wrong. Apply compound the size of a grain of rice and spread. Be sure to clean off ALL old material from both surfaces. I use lacquer thinner.

Be sure to disconnect the AC power and remove the battery before opening the case. Take static discharge precautions.

http://www.cpuid.com/softwares/hwmo...

message edited by OtheHill


Report •

#13
October 7, 2013 at 13:39:05
I already have HW monitor installed. Thats how I have been monitoring the cpu temperature. I will try and find the fan speed from hw monitor

Report •

Ask Question