UNSOLVED
Closed
P
PaulGiv_849de6
11 Posts
0
7543
October 14th, 2005 18:00
5150 running a lot hotter after BIOS update
I got my 5150 back from Dell today after a motherboard replacement. It was a really quick turnround, only taking 4 days including collection and delivery.
There was a note itemising the work carried out and it says that they upgraded the BIOS. I'm sure my old BIOS was A32 and the new one is now A37. The only problem is that previously my CPU temp was on average 33 degrees C and now its registering 49 degrees C.
Is this likely to be down to the BIOS upgrade or could it be that the new motherboard temp sensor is calibrated differently?
PaulGiv_849de6
11 Posts
143
0
Posted October 16th, 2005 14:00
I rolled back to A35 today and my temps are back to normal. Many thanks for the excellent advice.Paul.- I upgraded my bios to the A38 about 9 months ago. I've got a 5150 inspiron. It worked fine until about 2 weeks ago when the fan just runs all the time. I think this is due to the fact that the fan runs whenever the temp gets to some point and then never shuts off...even though the temp goes down. What can I do to go back to A35? Or is there another solution?
NemesisDB
2 Intern
•
7944 Posts
143
0
Posted October 15th, 2005 13:00
It's an intentional adjustment to the fan table that happens in bios A36, A37, and A38 (actually I'm surprised they didn't flash to A38 as it's the most recent). Prior to A36 the fan ran on low all the time, which results in lower idle temps. That said, the constant air movement causes dust to build up more quickly on the heatsink -- so dell made this adjustment so limit dust build up and thermal shutdowns.
If you dust or clean the heatsink yourself, you don't want this bios as it causes things to run hotter in general. A35 is probably the best bios in this case.