Question about IBM ThinkPad T30 2366 Notebook

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One Dead Memory Slot

After using the old wedge paper trick for a while the faulty slot that came from the factory finally started giving me trouble. Question: Can the max supported memory on the machine be achieve through only one slot using 1 - 1 GB memory module?

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  • Lause Oct 07, 2008

    Have the same problem, I guess. Some time ago, it ceased to boot, the fan went on and the HDD made noise, but it didn't go further, nothing on the screen an no sounds (beep). Disassembled it, but didn't find anything, so I assumed flexing of the motherboard and permanent damage. Tried to find spare motherboard, but didn't have the money and taught it wasn't worth it. Found a R40 instead in the bay, so I bought that on instead.

    By search I found some treads about this issue and had a closer look at the memory slots. The lid over them was quite damaged and scratched (it was used by my girlfriends daughter, quote: didn't drop it, always treated it well) and had a little sharp dent.

    Took the lid off, removed one of the RAMs and tried to start it, while pressing firmly on the memory slot, the ThinPad screen appears and gives choice between editing the BIOS or setting temporary boot device.

    When I've got the time, I'll try to solder the mem-slots and see, if it helped. And i'll try to remove the mentioned shock-absorber (allthough I'm not shure, what it is, the only shock-absorber, I know about, ist the rubber-thing in the bottom cabinet).

    If there are any other suggestions to solve the problems ot tips how to solder, I would appreciate any posts.


  • atlantesa Dec 06, 2008

    Yes I would like to know If I can put a 1gb ram into only one slot since the other is dead and what are the specs for it. Thanks

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I just repaired my ThinkPad T30 Memory Slot. I determined the slot area buy pushing on the end of the slot w/ my finger during boot-up.

With the RAM cover off and the ThinkPad upside down w/ the RAM slots to your bottom right, the bad pad on this was the one nearest the edge and closest to me. That will be bottom right by this perspective.

I used a Radio Shack Micronta microscope to check the end slot and noticed a hazy area around the contact indicating looseness.

The end contact pad is larger then the others and this may have cause a weak solder joint seeing that the big pad adsorbed more solder and created a thin joint.

I took a soldering iron and sharpened the point with a file and when hot I fluxed the tip and the joint area. Then added a very small bead solder to the iron and touched it to the end joint under a magnifying glass. It created a nice bead on the joint and fixed the problem. I then cleaned the slot with cotton swab and used a needle to check and make sure the pads weren't bridged, but the microscope was enough to validate my solder skill.

I now have 1G Memory! [2 x 512Mb]

Posted on Feb 10, 2010

*sigh*

Not true.

Maximum supported RAM even on 2366 is _2GB_ (read: 1GB per slot).

Cleaning contacts of SO-DIMMs with rubber erasers will most likely destroy the RAM due to isolated static discharge. DONT DO THINGS LIKE THAT ! - There are special solutions available for safely (!) cleaning contacts of ESD-sensitive devices.
ESD will not necessarily zap the devices (here: RAM) immediately, more frequent a gradual failure can also occur, which mostly cannot be directly connected with the "small" ESD of the cleaning actions.

Actual Problem (AFAI recall) is mainboard flexing, at least in the last couple of dozen cases I encountered.
Resolder the socket (non-trivial, consult an expert for that !) and all will be fine for the next year or two, then probably another resolder will be required. Additionally the whole machine can be disassembled and one (most likely) blue rubber shock-absorber can be removed. The resoldering will then last for (most probably) ages ...

More information concerning this specific issue on the t30s can be found via e.g. google.com or similar.

Good luck.

/dossi

Posted on Apr 01, 2008

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Nope -
512 memory was the highest available at design time. So no additional address lines were made.

So, you must use 2-512 sticks

the wedge paper trick can be eliminated by using an inkpin eraser (gritty type) to clean the contacts on RAM chips.

Posted on Mar 01, 2008

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