Lenovo X1 Carbon Laptop Clock Speed and Charging Issues

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sonyxperiageek

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#153849 9-Oct-2014 17:17

Hi, I have a Lenovo X1 Carbon Ultrabook running Windows 8.1 and every time I plug in my AC charger, the clock speed of the ultrabook gets stuck at 0.60gHz. As soon I as unplug it, the laptop goes back to normal speed. I can feel the speed difference as well!

And I even tried setting the AC powered option to High Performance in the battery section as well, but still doesn't work - stuck at 0.60gHz.

Thanks in advance!

Sony

Dynamic

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#1150846 9-Oct-2014 17:19

Sounds like a call to their support line might be due, or is it out of warranty?

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nathan

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#1150860 9-Oct-2014 18:27

Is the bios up to date?

sonyxperiageek

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#1150942 9-Oct-2014 21:21

Dynamic: Sounds like a call to their support line might be due, or is it out of warranty?

Yep, out of warranty. :(

Sony

sonyxperiageek

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#1150943 9-Oct-2014 21:21

nathan: Is the bios up to date?

How do I check? All the Lenovo System Updates are done etc..

Sony

farcus

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#1151003 10-Oct-2014 00:44

sonyxperiageek:
nathan: Is the bios up to date?

How do I check? All the Lenovo System Updates are done etc..

Download the latest bios from their website for your system.
During installation it first checks whether you need to continue or not (at least that's how they have worked for me on Thinkpads)

tanivula

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#1151030 10-Oct-2014 07:38

Have you had a go looking in the Lenovo Power Management software? It might be on some weird profile which has set the performance down to a minimum for some reason.

sonyxperiageek

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#1151289 10-Oct-2014 13:05

farcus:
sonyxperiageek:
nathan: Is the bios up to date?

How do I check? All the Lenovo System Updates are done etc..

Download the latest bios from their website for your system.
During installation it first checks whether you need to continue or not (at least that's how they have worked for me on Thinkpads)

Ok, thanks. Will try that now.

However, all of a sudden, the clock speed has seem to gone back to normal even when the AC adapter is plugged in now! That sure is weird!

Sony

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sonyxperiageek

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#1151290 10-Oct-2014 13:05

tanivula: Have you had a go looking in the Lenovo Power Management software? It might be on some weird profile which has set the performance down to a minimum for some reason.

It doesn't appear to have been installed!

Sony