Recently I've been diagnosing my mothers laptop that at first seemed to randomly freeze/shut down/crash due to overheating.
But upon extensive testing it freezes/shuts down with low activity and I can replicate these conditions. It also shuts down/crashes while in BIOS but with opposite symptoms as to what goes on in Windows.
Scenario #1: In windows, whenever the fan switches from medium rpm speed to low rpm, and core temps go down to 51C, a freeze followed by a shutdown is imminent within the next 1-2 minutes. When this happens sometimes half of the open windows stop responding, while the other half still work and mouse still works. Sometimes the mouse stops responding while keyboard still works. The resource monitor from task manager will display the Disk as empty of activity. In some cases it doesn't shutdown/reboot and after 10+ minutes of being frozen it will resume operation as per normal. Other times it stays frozen. But most of the time it will shut down/reboot within 1-2 minutes of reaching 51-50C and low fan speed.
Overheating related reboots occur at 83C - but that's manageable to avoid generally.
Scenario #2: In BIOS, Whether working or leaving the computer idle, the fan speed ramps up to high, and eventually shuts down due to what I assume is overheating as there is no temperature display.
Scenario #3: In Safe Mode, No freeze or crash happens as the temps stay at 66C and fan speed on medium.
Basically I'm forced to keep the temperatures above 51C and therefore fan speed above low to avoid a freeze.
Specs are:
Toshiba Satellite A300 Harman Kardon
Intel T5750
ATi HD 3470
2GB ram
Windows Vista
Due to this cold startups cause several reboots before windows can properly load, and hibernate will crash and cause chkdsk to run if computer has cooled down.
Would appreciate some help.. has anyone experienced this before and solved it?
But upon extensive testing it freezes/shuts down with low activity and I can replicate these conditions. It also shuts down/crashes while in BIOS but with opposite symptoms as to what goes on in Windows.
Scenario #1: In windows, whenever the fan switches from medium rpm speed to low rpm, and core temps go down to 51C, a freeze followed by a shutdown is imminent within the next 1-2 minutes. When this happens sometimes half of the open windows stop responding, while the other half still work and mouse still works. Sometimes the mouse stops responding while keyboard still works. The resource monitor from task manager will display the Disk as empty of activity. In some cases it doesn't shutdown/reboot and after 10+ minutes of being frozen it will resume operation as per normal. Other times it stays frozen. But most of the time it will shut down/reboot within 1-2 minutes of reaching 51-50C and low fan speed.
Overheating related reboots occur at 83C - but that's manageable to avoid generally.
Scenario #2: In BIOS, Whether working or leaving the computer idle, the fan speed ramps up to high, and eventually shuts down due to what I assume is overheating as there is no temperature display.
Scenario #3: In Safe Mode, No freeze or crash happens as the temps stay at 66C and fan speed on medium.
Basically I'm forced to keep the temperatures above 51C and therefore fan speed above low to avoid a freeze.
Specs are:
Toshiba Satellite A300 Harman Kardon
Intel T5750
ATi HD 3470
2GB ram
Windows Vista
Due to this cold startups cause several reboots before windows can properly load, and hibernate will crash and cause chkdsk to run if computer has cooled down.
Would appreciate some help.. has anyone experienced this before and solved it?