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T500 no boot no POST problems

T400/T410/T420 and T500/T510/T520 series specific matters only
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cadillacmike68
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Location: Florida

T500 no boot no POST problems

#1 Post by cadillacmike68 » Mon Apr 20, 2020 10:30 pm

Hi, I have two T500s that I bought a while back and they have both given me nothing but grief. I bought them because they took the same dock, batteries and chargers as my T61s and have WSXGA+ 16:10 screens, but have slightly better CPUs, native SATA in the ultrabay and much less expensive to upgrade to 8GM RAM. But they don't want to cooperate. I did get one to successfully boot up and re-equip itself with proper drivers from a T61 HDD, but now that system will not even turn on. With the price of DDR2 RAM at $60 or more for a single 4GB module, I'd like to get these working, especially since my wife wants one with a camera. These both posted to BIOS initially with no errors, although one refused to stay shut off.

System A: T500 MTM 2055-WFG T9400 CPU 4GB RAM, camera.
I believe this is the one that I got to boot with a T61 HDD, but now it will not turn on. It doesn't even recognize that a power supply is in it, i.e. the AC connected light and the battery LEDs do not light. I've tried the usual take battery and charger out, hold down power button, but it will not recognize the presence of either a battery or an AC power supply.

Any ideas?

System B: T500 MTM 2055-Y11 T9400 CPU, 4GB RAM no camera.
I believe that I FUBAR'd the system board on this one when flashing a BIOS update. I left the room and when I came back there was some sort of error message and that's the last time I saw the screen on it. With no RAM, I get the 1 3 3 1 no memory beep sequence. With a good module in the first slot, I get the one long two short which is the planar error. Am I right on this? I bought a couple new (well, new to me) planars and one with all the bottom plastics (MTM 2055-AS4).

Is the one short two long indicative of other issues besides the planar?

I believe that this one also has the issue of not wanting to stay turned off. I just saw a new post on that subject as well. any ideas on that?

If I had these T500s running, I wouldn't have gone out and got that T530. But at least it wasn't a T540. I saw a T440 and the keyboard / touchpad is a mess on those. Definitely a step down.
600, 600X
760LD FUBARd
T21 2647 T22 2647 1@ 1GHz SXGA+ 4 more; T23 2647 1@ 1.2GHz SXGA+ 3 more
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T41 T42 T43
T61 8897 2.4GHz SXGA+; 8898 2.4Ghz; 6463 2@ WSXGA+; 7658 2.5GHz; T61p; 6 more T61s
T500 2
T530 W530

cadillacmike68
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Posts: 1151
Joined: Fri May 27, 2011 9:19 pm
Location: Florida

Re: T500 no boot no POST problems

#2 Post by cadillacmike68 » Wed Apr 22, 2020 10:09 pm

Update:

System A:
Still ignoring the presence of a battery and / or charger. Chargers and batteries are known good from my T61 6470 and 6460.

For a short while, if I took out both, held the power down for 20-30 sec, put a battery in, held the power button down while inserting the charger, the AC power and batt indicator lights both flashed for about 1/10 of a second. But it won't even do that now.

System B:
With the same known good Batt and charger, It still gives the 1 short 2 long beeps but it shuts off when I press and hold the power and when I insert the charger it does not try to turn on.
600, 600X
760LD FUBARd
T21 2647 T22 2647 1@ 1GHz SXGA+ 4 more; T23 2647 1@ 1.2GHz SXGA+ 3 more
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T41 T42 T43
T61 8897 2.4GHz SXGA+; 8898 2.4Ghz; 6463 2@ WSXGA+; 7658 2.5GHz; T61p; 6 more T61s
T500 2
T530 W530

cadillacmike68
ThinkPadder
ThinkPadder
Posts: 1151
Joined: Fri May 27, 2011 9:19 pm
Location: Florida

Re: T500 no boot no POST problems

#3 Post by cadillacmike68 » Wed May 13, 2020 11:04 pm

No suggestions? Just replace the mobos?

I'll get to it as soon as I finish with the T530s / W530s/
600, 600X
760LD FUBARd
T21 2647 T22 2647 1@ 1GHz SXGA+ 4 more; T23 2647 1@ 1.2GHz SXGA+ 3 more
T30 2366-88U 2GHz; 2366-83U 1.8G; 5@ 2366-LU0/66U; 2367-KU6 FUBARd
T41 T42 T43
T61 8897 2.4GHz SXGA+; 8898 2.4Ghz; 6463 2@ WSXGA+; 7658 2.5GHz; T61p; 6 more T61s
T500 2
T530 W530

kfzhu1229
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Posts: 1655
Joined: Tue Sep 22, 2015 10:59 pm
Location: Toronto, Canada

Re: T500 no boot no POST problems

#4 Post by kfzhu1229 » Wed May 13, 2020 11:54 pm

If you know soldering well, you can try transplanting the bios chip from the power dead one to fix the other.
The power dead one might be impossible to fix if you dont have the right tools. That one you might need a multimeter and trace whether you have 3.3, 5 and 10-19V on the motherboard where there should be. It is entirely possible you can have something as simple as a dead capacitor or mosfet or you can have a failed graphics or chipset
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Lat D830 X9000 8gb 128gb WSXGA+ Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

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