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L530 only starts up via BIOS

L430/L530 and later Series
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Nick Dee
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Joined: Wed May 04, 2022 3:34 am
Location: Zurich, Switzerland

L530 only starts up via BIOS

#1 Post by Nick Dee » Wed May 04, 2022 3:48 am

My L530 with WIN 10 PRO/64 bits only boots after entering BIOS, normal boot doesn't work (dark screen only)
Means I have to enter the BIOS (by pressing F1 after start) every time after start up and then simply leave BIOS by saving the values.

Hardware checks didn't show any anomalies and WIN 10 works as expected. Just no normal system booting after start up.

Any ideas?

RealBlackStuff
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Re: L530 only starts up via BIOS

#2 Post by RealBlackStuff » Wed May 04, 2022 4:32 am

(Almost) dead CMOS-battery? (Under the keyboard)
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Nick Dee
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Joined: Wed May 04, 2022 3:34 am
Location: Zurich, Switzerland

Re: L530 only starts up via BIOS

#3 Post by Nick Dee » Wed May 04, 2022 8:00 am

Thanks for the hint, will check this a.s.a.p.
BtW: what is the exact purpose of this CMOS battery?

Nick Dee
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Re: L530 only starts up via BIOS

#4 Post by Nick Dee » Wed May 04, 2022 9:46 am

Checked the backup battery... seems o.k. with 3.2V
What could I check next?
Thanks for any hints!

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Re: L530 only starts up via BIOS

#5 Post by RealBlackStuff » Wed May 04, 2022 12:49 pm

CMOS keeps date/time and a few other basic BIOS-settings of the laptop.
Without it, many Thinkpads won't even boot up.
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IBM: T23 (XP/SP3) - Lenovo: X240, X250, T440p, M900 Tiny (all with W7/SP1)

mikejacoubowsky
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Re: L530 only starts up via BIOS

#6 Post by mikejacoubowsky » Tue Jun 21, 2022 10:36 pm

Did you ever get it working? This is really similar to what my new L15 does. Only way I can get it to boot is to pull up the boot selection routine at startup (F12) and select it before everything locks up.

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