09-08-2011 04:23 AM
09-08-2011 06:50 AM - edited 09-08-2011 07:51 AM
Updated my X220 with the new BIOS 1.21.
Pulsing sound seems definitely gone(so far).
However the whining is still there and my fan is running at a high speed constantly when using maximum performance setting.
At what CPU temp? If it's high, you might need replacement of the thermal grease between the CPU and fan, for which you can contact Warranty Support if you don't want to do it yourself.
09-08-2011 07:58 AM - edited 09-08-2011 07:59 AM
Good to hear that the BIOS seems to be working. Has anyone managed to update without Windows or optical drive?
09-08-2011 12:42 PM
the pulsing is gone, that's a huge improvement, thank you!
why would it take you that long to release a fix, lenovo? i had actually lost my faith, i have to admit..
09-08-2011 12:45 PM
Yes, it uses so-called "Harddisk Emulation", so extraction and/or mounting is not as trivial as with standard ISOs. However I could successfully update (and finally fix - yay!) my x220 by following these steps:
1. Enter USB flash drive.
2. Get grub4dos and install it on the flash drive:
wget http://download.gna.org/grub4dos/grub4dos-0.4.4.zip unzip grub4dos-0.4.4.zip cd grub4dos-0.4.4
./bootlace.com /dev/<USB_DEVICE> # determine with "mount" or "sudo fdisk -l"
3. Get the current firmware (1.21) and put it on the flash drive:
wget http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/8duj10uc.iso cp 8duj10uc.iso <USB_MOUNTPOINT> # e.g.: /media/USB vim <USB_MOUNTPOINT>/menu.lst
4. At the bottom of menu.lst, add a new entry:
title Lenovo X220: Update to BIOS 1.21 root (hd0,0) map /8duj10uc.iso (0xff) || map --mem /8duj10uc.iso (0xff) map --hook root (0xff)
configfile /grub4dos.lst || chainloader (0xff)
5. Save & close menu.lst.
6. Restart, then boot from USB (you may need to press F12 to enter the boot menu).
7. Select "Lenovo X220: Update to BIOS 1.21" and follow instructions.
09-08-2011 07:31 PM
Yeah, improvement here too, but the pitch sound is higher then it was on my X300. But it's fine with me.
My fan run at 3100rpm @ 53C on light work.