Fuzzy screen on Acer aspire one 722

Acer Aspire as5315-2826-vhb notebook
March 28, 2013 at 08:01:46
Specs: Android 4.0, 2gb
My Acer Aspire one 722 occasionally goes into a fuzzy screen. It can work ok for days and then the screen goes fuzzy. Doesnt show up on external monitor. The laptop is triple boot and runs win7, vista and android.It does the same on all 3 operating systems. Could it be ram. I don't think it is the screen cable as it doesnt come through atall on an external monitor.
It has an AMD dual core processor. Thought it may be a hot processor issue.
Event viewer records the fault as a critical error with a message about.kernel-power.Any ideas appreciated.

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#1
March 28, 2013 at 14:07:46
If an external monitor works fine all the time and you have that issue only with the attached display, why would you think it is anything other than the display or internal cabling?

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#2
March 29, 2013 at 02:18:16
the screen is completely blank on external monitor.Nothing comes through whatsoever. That isnt normal. The pc also completely freezes. You cant move the mouse or perform any other actions. It is not as simple as you think.
I am sure it isnt a screen or screen cable issue. I suspect ram or some other hardware problem.

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#3
March 29, 2013 at 06:03:30
Sorry, I read too fast. Have you checked overheating as the cause? Install HWMonitor to measure voltages and temperatures in real time. get it from the link below.

Most RAM issues are just corrosion on the contacts. Try removing any removable RAM and snapping it in and out 4 or 5 times. You can also use an eraser on the module.

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


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Related Solutions

#4
March 30, 2013 at 04:32:55
The computer blue screened this morning. I googled the error code and microsoft seem to be suggesting a cpu issue.Something to do with a microcode which could be corrected with a bios updaate.
The link is
http://support.microsoft.com/kb/842465

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#5
March 30, 2013 at 07:20:05
That is only one of three possible causes. Did you install HWMonitor as I suggested above?

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#6
March 30, 2013 at 09:26:38
Yes installed it. Temperature seems ok at about 76.
Have also changed the ram and put a brand new module in. The performance and speed of the laptop have increased dramatically and it has not shown the symptoms of the fault since. Not completely convinced as the laptop would work ok for 2 or 3 days and then start crashing and freezing every 5 minutes.There does semm to be an improvement though.
Thanks

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#7
March 30, 2013 at 10:01:25
Which temperature reads 76c? If you are reading in Celsius then 76c is high even to the CPU. Very high for the case (system).

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#8
March 30, 2013 at 12:03:13
it is only giving me readings for the hard drive, the graphics and the battery. there is no value given for the cpu.
here are the readings for the hard drive which is 320gb:
At the top it says ASSEMBLY ' WDC WDC 32000BPVT-22JJ5TO:
TEMP: 21
How do I get areading for the cpu?

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#9
March 30, 2013 at 21:31:13
HWMonitor should show those nembers. Is your motherboard being identified by HWMonitor?

What is the 76 you mentioned above?


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#10
March 31, 2013 at 05:05:58
Have installed another temp monitor called coretemp. It is giving me a reading of between 58c and 62 c for the cpu.
I think that it is too high . DO you agree?

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#11
March 31, 2013 at 10:57:15
If those are idle temperatures then they are somewhat high. What is the system temperature?

Did you see what the temps are in the BIOS?

I suggest you buy a can of compressed air and blow out the innards via the cooling vents on the bottom of the notebook.


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