T500 T8700 processor work much faster than on the current of a battery!

My colleagues and I are having a very annoying problem with our thinkpad t500 (approximately 200 laptops or more). the problem is that the CPU is intel core 2 duo T8700 2.53 ghz works only with 1.6 ghz speed on idle and load the State with alternating current and never jump higher than speed and jumps only to 2.53 ghz speed if and only if the battery is connected to the laptop, the laptop is faster using the battery that is strange indeed.

My own opinion on this issue, it is that it is a bug in the bios that is the switching in a different way processor modes (processor with power supply ofc should be faster than with battery) I've already updated my bios of the laptop to 3.09 version, but always without success. The serial number of my laptop is "*".

I hope that fix you this very soon.

Moderator edit: number masked to prevent improper use.

Hi mtaher and welcome to the Lenovo user community!

Connected to a 65W power adapter, the T500 is relies on the battery to power during peak load. If you remove the battery, he's choking back the CPU at a level that the 65W adapter can handle alone. It probably won't happen if you use a 90W Adapter (I don't have anyone around to test - maybe someone can confirm).

The research community and you will find this discussed many times - that's the behavior designed most of the models.

Tags: ThinkPad Notebooks

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