NMBill
2 Bronze

Dead System Battery = No Boot? T3500

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The system battery on the mobo is failing.

If it dies, will the computer still boot?

A17 Bios

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Mary G
7 Thorium

Re: Dead System Battery = No Boot? T3500

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The system battery is a small coin cell battery that can be replaced easily and cost $1 or $2 at any store that sells batteries. See your manual-- Dell Precision T3500 Service Manual

Just go to the page for Battery. Computer will not boot without it.

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speedstep
8 Krypton

Re: Dead System Battery = No Boot? T3500

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" But many mobos only depend on the battery to store time and nothing else, so the computer will boot fine with a dead battery."

That is false.

Battery is not optional for 3500.

https://www.dell.com/support/kbdoc/en-us/000123890/

 

Pb10

 

1 3.gifbutton.gif

1- Blink 2- Off 3- Blink 4- Off

 

 

PSU Failure

T3500_BATTERY.png

https://www.youtube.com/watch?v=nxw9sMAjbUY


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Mary G
7 Thorium

Re: Dead System Battery = No Boot? T3500

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The system battery is a small coin cell battery that can be replaced easily and cost $1 or $2 at any store that sells batteries. See your manual-- Dell Precision T3500 Service Manual

Just go to the page for Battery. Computer will not boot without it.

View solution in original post

speedstep
8 Krypton

Re: Dead System Battery = No Boot? T3500

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Many models will not boot if the battery is dead.


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I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support






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NMBill
2 Bronze

Re: Dead System Battery = No Boot? T3500

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Right. But many mobos only depend on the battery to store time and nothing else, so the computer will boot fine with a dead battery. You'll have to reset the system time.

What I'm trying to find out is which is the case with the T3500, A17 Bios.

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mazzinia
3 Argentum

Re: Dead System Battery = No Boot? T3500

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It could boot fine, it could have unpredictable issues ( like refusing to boot if the power cable is unplugged / plugged back ).

Given the negligible cost of a new cmos battery, there's no reason to avoid changing it, I think

-----------------------------------------------------
Happy owner of a dual silver T7820
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NMBill
2 Bronze

Re: Dead System Battery = No Boot? T3500

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Well, I'm going to find out whether the computer will boot with a dead system battery.

Tried to replace the system battery.

But pressing as hard as I dared - or even as I could - on the tab to release the ring holding the battery didn't work.

Something has fused the ring. (Even managed to bruise my thumb trying.) Ad using the suggested small screwdriver didn't work either.

So I'll find out what happens when the battery finally dies.  ):-

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mazzinia
3 Argentum

Re: Dead System Battery = No Boot? T3500

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Would recommend removing it... it's not exactly normal that "fuses". and an expired and depleted cmos battery ends leaking acid.

The acid damages the board

-----------------------------------------------------
Happy owner of a dual silver T7820
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NMBill
2 Bronze

Re: Dead System Battery = No Boot? T3500

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Since pressing as hard as I can doesn't release the ring holding the battery, and therefore I can't remove the battery, how am I to replace it?

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speedstep
8 Krypton

Re: Dead System Battery = No Boot? T3500

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" But many mobos only depend on the battery to store time and nothing else, so the computer will boot fine with a dead battery."

That is false.

Battery is not optional for 3500.

https://www.dell.com/support/kbdoc/en-us/000123890/

 

Pb10

 

1 3.gifbutton.gif

1- Blink 2- Off 3- Blink 4- Off

 

 

PSU Failure

T3500_BATTERY.png

https://www.youtube.com/watch?v=nxw9sMAjbUY


Report Unresolved Customer Service Issues
here

I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support






Get Support on Twitter @DellCaresPro

View solution in original post

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