R40 BIOS hacking and upgrades

R, A, G and Z series specific matters only
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Terrahawk
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R40 BIOS hacking and upgrades

#1 Post by Terrahawk » Wed Dec 06, 2006 3:15 am

Hi everyone,

I've mostly upgraded my R40 2723-26M to fairly reasonable specs, they being 1.7 GHz Banias Pentium-M, 60 GB 5400 RPM hard drive, IBM a/b/g Mini PCI II card and 512 MB RAM. Apart from more RAM (and a 7200 RPM hard drive), what's another cool thing I can pack into it to increase its feature set?

Also, does anyone know of anywhere that has done any BIOS hacking to enable Dothan CPU support for Pentium-M R40s? What I do know so far is that the Banias has a CPUID code of 0x695 and the Dothan has a CPUID code of 0x6D1 or thereabouts. I do have an uncompressed BIOS image for the R40 and I've viewed it with a hex editor and found 14 occurrences of 0x695. I don't know which one is in the CPU recognition table since I don't have a disassembler yet.

I've yet to finish adjusting the BIOS so I can use the IBM a/b/g Mini-PCI II card without the no-1802 hack but I'll get on to that soon.

Anyone have and awesome hints and tips? :D
Geoff.
T60P 2007-8JM / T60 1951-A35 / Z60M 2531-E9M / Tablet 1838-23M / Tablet 2 3679-27M
T410 2522-CTO / X301 2776-A17 / X201 3680-FAG / T420 4180-AQ3

mmmkay
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#2 Post by mmmkay » Mon Dec 11, 2006 8:08 pm

You could get an ultrabay battery :)
[insert witty contrived signature here]

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