I Can't Seem To Apply The 3GB Switch On A Thinkpad Using XP

[epu]

I've tried this on numerous Thinkpads (X61, X200T) and always get a BSOD. The 3GB switch is what allows programs in XP to utilize more than 2GB per program. One of the main programs I need to use, Pro-Tools, crashes out in the neighborhood of 1.4GB+. On my Non-Lenovo desktops, I am able to set the 3GB switch w/o issue. On the Thinkpad, I get a BSOD before the OS loads. I am using Windows XPSP3. For those who don't know much about it, the following code must be added to the Boot.ini file. Here it is below:

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional - 3GB" /noexecute=optin /fastdetect /3GB /USERVA=2496

I initially set the USERVA to 2900, and lowered it to 2496 to see if it would work. No avail. Upon looking at the SYSTEM component in the Control Panel, it says that my X200T has 2.96GB available (out of 4GB Installed). On my desktop system, I see typically 3-3.25GB.

All of my Lenovo laptops are built like tanks, and at the moment, upgrading to W7 or a 64Bit system is not possible (Pro-Tools is a 32Bit app anyway, and the 64Bit versions are still pretty buggy). I've messed with the USERVA parameter, bringing it down to =2000 w/the same BSOD! The BSOD flashes really fast, so I can't seem to make out the error.

Any suggestions with regards to this 3GB switch? Thanks.

(This was initially posted in the Off-Topic forum, but I was urged to post this here).

[hunterman223]

I can't help you out too much with the 3gb switch, but you should disable "automatic restart on system failure" during boot. While booting you can do this by pressing F8 before the XP splash screen, if you are already booted up you can do it in the system control panel under startup and recovery settings.

Once you do that write down the stop error code (starts with 0x) and google it. It might be some kind of software or driver conflict.