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(T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

T20-T23 Series and T30 specific matters only. NOT for T25-Retro.
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CrazyTPFan
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(T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#1 Post by CrazyTPFan » Sun Nov 10, 2019 10:02 pm

Hi all, it's been a little while since I've posted here. I recently acquired a T21 for cheap off ebay. It's a P3 750 w/ 128MB Ram and a 40GB HDD. It's been working fine until today. The screen would shut off, the HDD would continuously spin up and stop, and during this the laptop would stay on. I would then have to unplug it and plug it back in to get it to come back to life. This issue happens sometimes when the laptop turns on, and sometimes when the laptop is already in the OS. If anyone could help, it would be appreciated. Thanks.
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Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#2 Post by kfzhu1229 » Sun Nov 10, 2019 11:10 pm

Is the screen itself still on? (I.e. backlight off but screen still displaying some image) If so, does it respond to your mouse and keyboard input?
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Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#3 Post by RealBlackStuff » Mon Nov 11, 2019 3:10 am

Sounds to me like a badly soldered inductor.
viewtopic.php?t=75693
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CrazyTPFan
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Posts: 185
Joined: Mon Aug 20, 2018 9:55 pm
Location: Winthrop, Massachusetts

Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#4 Post by CrazyTPFan » Mon Nov 11, 2019 10:48 am

The back light will stay on but the machine won't respond to anything. It stopped doing it for now so maybe it fixed itself.
lenovo T440p i5 20AW-S41V00

lenovo X220 i5 4291-VE2

lenovo T61 T7300 6460-7EU

IBM T21 P-III 2647-6AU

CrazyTPFan
Sophomore Member
Posts: 185
Joined: Mon Aug 20, 2018 9:55 pm
Location: Winthrop, Massachusetts

Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#5 Post by CrazyTPFan » Mon Nov 11, 2019 12:56 pm

So I took everything out of the machine to make sure that I would only get an error code for the ram and nothing else. Then, I put it back together and it gave me error 0175 and wont let me boot into anything. Any recommendations on what to do now?
lenovo T440p i5 20AW-S41V00

lenovo X220 i5 4291-VE2

lenovo T61 T7300 6460-7EU

IBM T21 P-III 2647-6AU

BillP
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Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#6 Post by BillP » Mon Nov 11, 2019 1:11 pm

There have been several threads about this on the forum over the years. This one is quite good: viewtopic.php?p=218045#p218045

Without the hassle of trying to rewrite the EEPROM, replacing the system board is the only option.
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CrazyTPFan
Sophomore Member
Posts: 185
Joined: Mon Aug 20, 2018 9:55 pm
Location: Winthrop, Massachusetts

Re: (T21) Screen goes blank, HDD starts to spin and then stops, and laptop stays on.

#7 Post by CrazyTPFan » Mon Nov 11, 2019 9:50 pm

I was hoping it wasn't a board issue, but it is what it is. I'm lucky I only spent $20 on the laptop and not anymore. How much are people selling boards on this forum?
lenovo T440p i5 20AW-S41V00

lenovo X220 i5 4291-VE2

lenovo T61 T7300 6460-7EU

IBM T21 P-III 2647-6AU

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