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E440 Passes All Diagnostics But Fails to Boot to OS

Edge / E-Series
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dcfbf
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Joined: Wed May 01, 2024 7:28 pm
Location: Jurupa Valley, California

E440 Passes All Diagnostics But Fails to Boot to OS

#1 Post by dcfbf » Sun Aug 10, 2025 11:44 pm

I recently got a E440 20C5-004YUS in a lot of ThinkPads. Thing's basically junk but I do want it to work to some capacity.

Now the problem I'm having here is that like the subject says, the laptop passes all diagnostics but for some reason, when I try to boot into an OS, it shuts off and gives me two flashes of the indicator lights.

I've tried the ram but it still does the same thing.

If anyone has any idea what this could mean, that would be great.

My guess is that it's F-ed.
IBM: 760ED, 600E, 570, X30, G41, X41 Tablet, T43 IPS UXGA, R52 IPS SXGA+
Lenovo: T60, T61, X61 IPS SXGA+, T500, E40, X201 Tablet, W520, T430, W541, T450s, P71, X1 Carbon 6, T480, T14 G3, X1 Carbon 12

Current Dailies: T450s, P71

RealBlackStuff
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Re: E440 Passes All Diagnostics But Fails to Boot to OS

#2 Post by RealBlackStuff » Mon Aug 11, 2025 2:51 am

Have you tried another HDD/SSD?
They only take SATA, not NVMe.
Lovely day for a Guinness! (The Real Black Stuff)
But I actually prefer Murphy's from Cork!

axur-delmeria
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Re: E440 Passes All Diagnostics But Fails to Boot to OS

#3 Post by axur-delmeria » Mon Aug 11, 2025 7:48 am

Does the battery still work? Have you checked the processor and heatsink?
Planned Purchase: T480s i5-8350 FHD Touch
Impulse Buy: Thinkpad not named for safety reasons :lol:
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E :cry:

dcfbf
Posts: 49
Joined: Wed May 01, 2024 7:28 pm
Location: Jurupa Valley, California

Re: E440 Passes All Diagnostics But Fails to Boot to OS

#4 Post by dcfbf » Thu Sep 04, 2025 12:15 am

Sorry for the delayed response

Yes I have tried with different SSD, same issue and it was SATA

The battery does not work. I have changed the thermal paste and it seemed the heatsink was applying even pressure. Not checked the CPU because I don't want to spend any money on it.
IBM: 760ED, 600E, 570, X30, G41, X41 Tablet, T43 IPS UXGA, R52 IPS SXGA+
Lenovo: T60, T61, X61 IPS SXGA+, T500, E40, X201 Tablet, W520, T430, W541, T450s, P71, X1 Carbon 6, T480, T14 G3, X1 Carbon 12

Current Dailies: T450s, P71

axur-delmeria
Senior ThinkPadder
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Posts: 4318
Joined: Mon May 28, 2012 5:49 am
Location: Metro Manila, Philippines

Re: E440 Passes All Diagnostics But Fails to Boot to OS

#5 Post by axur-delmeria » Thu Sep 04, 2025 5:22 am

Try removing the WiFi card--heck, any device that can be removed and not affect the OS boot sequence.
Planned Purchase: T480s i5-8350 FHD Touch
Impulse Buy: Thinkpad not named for safety reasons :lol:
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E :cry:

dcfbf
Posts: 49
Joined: Wed May 01, 2024 7:28 pm
Location: Jurupa Valley, California

Re: E440 Passes All Diagnostics But Fails to Boot to OS

#6 Post by dcfbf » Mon Sep 15, 2025 10:59 pm

Sadly, nothing worked :(

Few days ago, I reduced the thing down to a motherboard, a power button, and a ssd but it still did the same thing.

Since then, I've put the thing back together and repurposed it's remains to be an elevating slab for my desktop that was sitting on the carpet.
It is doing that job very well and my temperatures on my desktop have dropped by about 3-5C :D

If you really think about it though I have achieved my goal...
dcfbf wrote:
Sun Aug 10, 2025 11:44 pm
I do want it to work to some capacity.
Although, instead of it working as a laptop, it's working as a slab of plastic. :lol:


Might wanna steal some parts from it in the future. :twisted:
Those screws are looking mighty fine
IBM: 760ED, 600E, 570, X30, G41, X41 Tablet, T43 IPS UXGA, R52 IPS SXGA+
Lenovo: T60, T61, X61 IPS SXGA+, T500, E40, X201 Tablet, W520, T430, W541, T450s, P71, X1 Carbon 6, T480, T14 G3, X1 Carbon 12

Current Dailies: T450s, P71

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