T22 boot probs

[Archery]

I'm having problems with my T22 model 2647-4EG bought off ebay. It worked fine for a while then began not booting with 1 beep then 3 then 3 more. I changed the CMOS battery after doing some research in doing so I reversed the polarity, stupid I know (will this have had an effect?). I then put it back to the correct polarity and the machine failed to boot at all. I then took the machine to bits, put it back together and still no luck. I then bought another CMOS battery and am back to the beeps and on the odd occasion booting up. Has the board had it? Is it worth replacing as i've heard the boards can be unreliable? Thanks for your help.

[Orevin]

Did you try a different RAM chip? You may also reseat all components, if you haven't yet.

[Archery]

Did you try a different RAM chip? You may also reseat all components, if you haven't yet.

Yeah i've got an IBM 128mb 100MHz and a crucial 256mb 133MHz. It makes no difference. Though when the laptop worked it often only recognised one of the modules! When I took it to bits I reseated everything including the CPU. I cleaned this with the the artic clean stuff and applied artic silver5 to the CPU core. Is this OK, i've plenty of experience with desktops but non with laptops. Surprisingly easy to take apart I might add but looks like it was a repair job in the first place. I'll try reseating everything again.

[tfflivemb2]

Orevin is correct, check the ram sticks.

According to the Hardware Maintenance Manual(page 53), typically 3 short beeps followed by three more short beeps are symptoms of the DIMM slot, or worse case, the systemboard.

[Archery]

Orevin is correct, check the ram sticks.

According to the Hardware Maintenance Manual(page 53), typically 3 short beeps followed by three more short beeps are symptoms of the DIMM slot, or worse case, the systemboard.

Its consistently turning on at the moment but everytime I'm either getting 0251 and 0271 error codes (CMOS) or 0251 on its own and a resource conflict message about a static node 01? I have to set the BIOS clock every time. The backup battery is brand new though I disassembled the old one and now there just stuck to the +ve and -ve with insulating tape. Shall try flashing the BIOS again? I recently did it by floppy.

[Orevin]

The backup battery is brand new though I disassembled the old one and now there just stuck to the +ve and -ve with insulating tape.

I would buy a battery with welded leads on it. Your recurring errors are most likely a result of a bad connection between battery and wires.

[Archery]

The backup battery is brand new though I disassembled the old one and now there just stuck to the +ve and -ve with insulating tape.

I would buy a battery with welded leads on it. Your recurring errors are most likely a result of a bad connection between battery and wires.

As in the original IBM part. Had a look on ebay but wanted to make sure I got a new battery and thought they possibly weren't even though sellers advertise them as being new.

[Zak]

You might try soldering the leads to the battery.

Safety notice/disclaimer: batteries can respond poorly to heat. You should use an expensive temperature-controlled soldering iron and only apply heat for a few seconds. You should not sue me if the battery explodes, you burn yourself or you poke your eye out with the soldering iron, no animals were harmed in the making of this post, etc....

[tfflivemb2]

I WOULD NOT recommend soldering the leads to the battery. They do explode quite easily.

I tried this before and the tip of the soldering iron just accidentally touched the battery and there was a "pop" and I ended up with battery in my eye. (Stupid me for not wearing glasses).

The original leads are spot welded. The replacement batteries are very cheap on ebay, or in the alternative you can just use black electricians tape. I have used the electricians tape and it worked fine.

[Orevin]

Yeah, soldering is a bad idea. I did try it too, but the the battery started to leak.

I'm sure I have a working battery in my junk box. Let me know if you need one.

[Archery]

I WOULD NOT recommend soldering the leads to the battery. They do explode quite easily.

I tried this before and the tip of the soldering iron just accidentally touched the battery and there was a "pop" and I ended up with battery in my eye. (Stupid me for not wearing glasses).

The original leads are spot welded. The replacement batteries are very cheap on ebay, or in the alternative you can just use black electricians tape. I have used the electricians tape and it worked fine.

I've been using the black tape. I flashed BIOS 1.11 over 1.12 and since then its been more reliable. It has been booting for the last couple of days from AC power but won't boot from the battery. I think this is the best i'm going to get. I've never soldered anything so don't think i'll be trying that one. I may try and get the IBM backup battery from Ebay and see if that makes it anymore consistent. A lot of the ones i've seen claim to be new but when i've looked at sellers other items i've noticed there selling a load of T-series parts for spares or repair Thanks for the offer of the battery but i'm in the UK so don't think it would be worth the P&P. Will let you know. Thanks for the help.

[beeblebrox]

What you should consider is:
the T2x series is quite old. The "New" batteries on ebay mostly are leftovers from stock. They are new because never used. However old, because they are just old.

Batteries degrade over time. you can buy a "new" Lithium battery that has almost no charge, because it is oxidated.

Your problem seems to be an old CMOS battery. Buy a new one in a store (they cost pennies), solder the leads to a small sheet of metal and connect those sheets to the battery with scotch tape. Works fine.

never solder a lithium battery, it usually makes a "puff" like Arnie`s power cell in Terminator 3.