Thinkpad T520 - 4239CTO cold vs warm boot menu (Windows 7 Pro)

Question

I have a curious situation. I replaced the hard disk in the above named Thinkpad with and Intel 530 SSD (250 MB). The OS is a fully patched Windows 7 Pro. Just for the record, to ensure full details are revealed: The new disk was, as recommended on the Lenovo site, activated as a GPT disk, the original was MBR. The BIOS option is Legacy boot (MBR) or UEFI (no MBR) or both. If I selected the UEFI only, I could not boot to or install the OS from the recovery disks. If I selected both, with legacy first or UEFI first, the recovery DVD's would boot and the inbstall would proceed without issue. This si where the trouble starts: Upon completion of the install, a number of anomalies appear. Regardless of the legacy/UEFI setting on the BIOS, if I warm boot, the options menu appears (tabbed with boot options and application options). I have no way out of this as another warm boot just returns me to that menu. If I cold boot, the proper boot sequence occurs and Windows loads properly, but only if the BIOS is set to BOTH for Legacy/UEFI. If it is set to either Legacy only or UEFI only on a cold boot, I get the option menu with the boot/applications tabs but the applications tab now includes the BIOS menu. If I cold boot with both Legacy and UEFI enabled, it boots to Windows and disk manager reveals that the disk is GPT but it appears to have an MBR. My conclusion is that the BIOS is confused because the disk is in some sort of amorphous MBR AND GPT state or something. I am concerned about aggressively pursuing one path or another (forcing a GPT disk by removing the MBR, for example) and getting into more trouble. I wonder if the Lenovo factory recovery disks are incapable of installing on a GPT disk and if that is the issue. Any comments or help is appreciated. Thank you

Answer 1

Hi Ran,
Thanks!
I haven't tried it yet.
In the meantime i did more testing and found out that even with only Power Manager version 2.41a installed the latest Intel Pro wireless driver also supported by lenovo is not stabel and FN-F5 or windows network connection also fails to switch the radio back on after a reboot when the radio has been turned off first ;-(
Reading http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-67283
over and over I decide to revert back to the old Intel wireless driver listed on this page.
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-67256
Reinstalled ThinkVantage Access Connections for Window Vista version 5.12
I tested it again........ IT WORKS!!!
Please try this combination:
BIOS Version: 1.15
Bluetooth with Enhanced Data Rate Software II for Windows Vista Version: 6.2.0.5000
ThinkVantage Active Protection System for Windows Vista 32-bit, XP, 2000 Version: 1.62
ThinkPad Power Management driver for Windows Vista, XP, 2000, Me, 98 SE Version: 1.52
ThinkVantage Productivity Center Pack Version: 3.02
Power Manager for Windows Vista Version: 2.41a
ThinkVantage Access Connections for Windows Vista Version 5.12 !!
Intel Wireless LAN (11abgn, abg, bg) for Windows Vista 11.05.0 API
Regards,
Ritchy
Message Edited by Ritchy on 01-14-2009 11:56 PM