Sounds like an early stage of SouthBridge failure which is fairly common on these machines.
You're looking at motherboard replacement, or having the aforementioned chip professionally re-balled. Either way, moving to a newer unit (both T60 and T61 were available in 14" 4:3 format) should be an idea worth consideration IMO. Good luck. Cheers, George -----Original Message----- From: TK <[email protected]> To: Thinkpad list <[email protected]> Sent: Mon, Dec 26, 2011 3:45 pm Subject: [Thinkpad] T41: bad_pool_error in Windows, on USB disk access, intermittent My T41 has been struggling with a new issue. I haven't added any hardware and an't think of any new software. It's running Windows XP SP2. Connected to a ini Dock. I have an intermittent issue that I think I've narrowed down to happening only hen I write (or read?) to one of my USB-connected hard drives. I'll probably et a delayed write failure (with perhaps data corruption), followed shortly by blue screen crash BAD_POOL_ERROR, stop x19. It's happened with various rives, which are completely different enclosures/different brands. I also sometimes notice when I'm starting the machine that my USB-connected eyboard will have its lights flash a lot more than I'd expect (and, if a drive s connected at the time, the drive will sound like it's repeatedly starting). 've never noticed this keyboard symptom once the machine has been running, nor ave had any trouble with the keyboard going unresponsive. So far, it's only happened with external drives that are mounted via Truecrypt, o I've suspected Truecrypt, but I am lately leaning away from that theory, ecause a) the keyboard light flashing, and b) my built-in system disk uses ruecrypt and I haven't had any failures there. I originally suspected ruecrypt because what would start to happen was that I'd mount a volume on an xternal drive, and the volume would immediately dismount itself. I have dvanced my theory to thinking that Truecrypt is dismounting because of some ntermittent USB interruption. These symptoms/failures happen whether the device(s) are connected to the uilt-in USB ports or the Mini Dock's USB ports. I haven't tried disconnecting he Mini Dock from the computer and seeing if the failure recurs. Memory and disk tests find no errors. So, does my theory that there is a USB issue make sense? What's puzzling is hat it'll happen on the MIni Dock or the laptop ports. Are they driven by the ame hardware within the laptop? Could there be a software issue with the USB rivers? I also might expect more keyboard symptoms, but maybe the problem is o brief when it happens that it only impacts a sensitive operation like disk ccess, and is virtually undetectable to my human-speed finger I/O. And, if it is an internal USB problem, would that mean I need to replace the ystem board? I've just enabled capturing of a system dump for the next BSOD (it wasn't umping, because I had virtual memory disabled for performance reasons). I've ead up on dumpchk, and installed Windows symbols table, but I worry I won't be ble to parse anything useful from the results. I've done plenty of web searches on the subject, and haven't turned up much of pecific use. BAD_POOL_ERROR seems to occur from a broad range of causes. Any ideas? Like some others on the list, I dread having to "upgrade" from my 41, because I like the 4:3 screen. I've had this thing going for over 6 years. sure as heck don't want to have to tweak/configure a Windows installation all ver again. Thanks a lot for any suggestions. - TK _______________________________________________ hinkpad mailing list [email protected] ttp://stderr.org/cgi-bin/mailman/listinfo/thinkpad _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
