07-14-2015 06:46 PM
This is an "all-in-one" post.
Recently, my trusty T61p started getting Blue Screens of Death (BSOD) with the following message:
DRIVER_IRQL_NOT_LESS_OR_EQAL in sysnetwlv64.sys
This has been frequently reported as a complication of Windows 8.1 (only) when installing the Intel drivers for the 3945 and 4965 WiFi cards. Both Intel and Microsoft state that these cards, plus the 5200 are no longer supported, but the 6200, 6300, etc. are.
Suggested remedies are:
1. For the T61's, reflash with the Middleton BIOS (2.29 plus mods - no white list, SATA 2 works). Then install a more recent WiFi card that has supported drivers for Win 8.1.
2. Change cards in both the T60 and T61s to the IBM/Lenovo ThinkPad 11a/b/g/n Wireless LAN Mini-PCI Express Adapter 42T0825 (this is an Atheros AR5008 5418 AR5BXB72).
In recent posts I have seen about Win 10, the old Intel drivers that used to work for Win 8.0 (but didn't in 8.1) appear to work in Win 10. (However, since it is still before July 29, I can only assume this is in preview versions, not RTM). If anyone has actually in installed the Win 10 RTM and had no problems, this whole thing may be a "non-issue". Is there any experience with this?
If I follow the remedies suggested above:
1. Using the replace the card approach with the Middleton BIOS, what is a good card to get? The other benefit of the Middleton BIOS is to allow the harddrives in the T-61's as SATA 2 instead of the dumbed-down SATA 1 as in the stock 2.29, 2.30 BIOS
2. If I follow the replace with the Atheros cards, I assume the best approach is to see if there are 3 antennas in the T60 (the T61's already have them). If not, I understand that I can add the 3rd antenna with FRU 42R9909.
For specific machine configurations, see the specs at the bottom (they're all "FrankenPads").
Many thanks for looking and your comments...
T-61p -- 15.4" WXSGA+, Win 8.1 64-bit, BIOS 2.30, CPU-T9500 2.6 GHz (Penryn), RAM 8GB DDR2-667 (2x4GB), HD 500GB (7200RPM, SATA 2, WD5000BPKT-00PK4T0), NVIDIA Quadro F570FM (1680x1050 - 188.8.131.5202), DVD-RAM, WiFi Intel 4965 (184.108.40.206), Ethernet Intel 82566MM (220.127.116.11), Ricoh Media Cardbus (6.3.9600.16384), Biometric CPU (18.104.22.1681), Conexant Modem (22.214.171.124), Broadcom Bluetooth (126.96.36.19947)
T-61 -- 14.1" WXGA+, Win 8.1 64-bit, BIOS 2.30, CPU-T7800 2.6 GHz (Merom), RAM 8GB DDR2-667 (2x4GB), HD 320GB (7200RPM, SATA 3, WD3200BEKX-22B7W4T0), NVIDIA Quadro NVS 140M (1440x900 - 188.8.131.5202), DVD-RAM, WiFi Intel 4965 (184.108.40.206), Ethernet Intel 82566MM (220.127.116.11), Biometric CPU (18.104.22.1681), Conexant Modem (22.214.171.124), Broadcom Bluetooth (126.96.36.19947)
T-60 -- 14.1" XGA, Win 8.1 32-bit, BIOS 2.27, TPM 1.2, CPU-T7600 2.3 GHz (Merom), RAM 3GB usable DDR2-667 (2x2GB), HD 320GB (7200RPM, SATA 2, WD3200BEKT-00PVM4T0), Intel Graphics 945 Express (1024x768 - 188.8.131.5297), DVD-RAM, WiFi Intel 3945ABG (184.108.40.206), Ethernet Intel PRO/1000PL (220.127.116.11), Biometric CPU (18.104.22.1681), Conexant Modem (22.214.171.124), Broadcom Bluetooth (126.96.36.19947)
Solved! Go to Solution.
07-15-2015 09:53 AM
07-03-2016 05:04 PM - edited 07-03-2016 05:08 PM
The Middleton BIOS has worked fine with Windows 10, as has an Intel AC-7260 WiFI card. An Atheros-based Azure Wave card was a dismal failure.
Also, I replaced the hard-drive with a Samsung 850 PRO SSD and could not believe the increasde in performance. The HDD I/O was the "rate-limiting" factor in improved performance which I had not appreciated.
01-15-2017 02:47 AM
01-15-2017 08:03 PM - edited 01-15-2017 08:13 PM
The best WiFi card I have come up with is the Intel AC-7260, and yes, the Middleton Mod 2.29 BIOS is needed due to the "whitelist" problem. There is no FRU for this as it comes from the venfor of your choice (Amazon, NewEgg, E-Bay, etc.). Be sure to get the revised version. Besides the WiFi, it also has Bluetooth (which I have not played with). It is a half-height card so it needs a metal extender. It's about $35 (US). It only requires the black and gray antenna wires (the white I just wrapped with tape to insulate it). It is the last card of the old form-factor/pinout, so look no further.
Overall, I am very pleased with the performance improvement by going from N to AC.
Should you need to reflash the BIOS, you might need to remove the card, reflash, then replace it. The Middleton Mod file I got doesn't care if you reflash to the same version, as opposed to Lenovo's "official" BIOSs that complain that your BIOS is already current, forcing you to go up or down one version to reflash the one you want.
01-19-2017 10:39 AM