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It's a flaky BIOS problem 

Forum: PCMCIA Installation and Configuration Issues
Re: Question: TP390X, 512MB, and PCMCIA (Andrew Newton)
Date: 2000, Feb 09
From: David Hinds <dhinds@pcmcia.sourceforge.org> 

I know what's wrong.  The ThinkPad BIOS configures the CardBus bridge
at address 0x10000000 regardless of how much memory is installed.
This address happens to equal 256MB, so if you've got 512MB installed,
the bridge is configured to sit in the middle of your system memory.

Get the latest (09-Feb-00) beta PCMCIA package from sourceforge.org in 
/pcmcia/NEW, and set:

    CORE_OPTS="cb_mem_base=0x20000000"

in /etc/sysconfig/pcmcia and it should work with 512MB installed.

-- Dave

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Sad: same problem, fixed, but now xircom card wont work

Re: It's a flaky BIOS problem (David Hinds)
Date: 2000, May 25
From: Dan Trevino dantrevino

I had the same problem, same configuration TP390X 2626MOU, w/512MB RAM. Found this fix, and it works great. No more "infinite loop...." messages, apm problems, etc..But, if I make this change, my xircom card no longer works. Commenting out the line and restarting pcmcia enables my card, but I get the same problems (obviously)....any ideas?

That doesn't make much sense

Re: Sad: same problem, fixed, but now xircom card wont work (Dan Trevino)
Date: 2000, May 25
From: David Hinds <dhinds@pcmcia.sourceforge.org> 

I'm not sure I understand.  If you had the original problem, your
system should have barely been functional, but you say your Xircom
card worked??

You should include much more detail.  What Xircom card is this, and
what are your system log messages in the good and bad configurations?

Also you say that just commenting out the fix and restarting PCMCIA
makes your card work.  That shouldn't be possible: commenting out that
line should have no effect until you do a cold boot.  Maybe just
restarting PCMCIA is what "fixed" things?

-- Dave

Idea: Actually you only did part of the fix

Re: Sad: same problem, fixed, but now xircom card wont work (Dan Trevino)
Date: 2000, May 25
From: David Hinds <dhinds@pcmcia.sourceforge.org>

You added the startup parameter... but you missed the part about upgrading your PCMCIA drivers. The cb_mem_base parameter is not available in your 3.1.8 PCMCIA drivers. It will work better if you upgrade (3.1.15 is current)

-- Dave

Ok: fixed

Re: Idea: Actually you only did part of the fix (David Hinds)
Date: 2000, May 25
From: Dan Trevino dantrevino

I'm a bonehead...everything works great! thanks

It's a flaky BIOS problem

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