Talk:Problem with non-ThinkPad hard disks
I replaced my R52's Hard disk by ST9100823A 100G/5400, when the system stared, it shows error information.
How could I solve the problem, if you know, please email to me wangdongmail@hotmail.com
Thanks
Downgrade the BIOS to v1.01
To the poster ("TellIT systems"?): can you explain what is the "BUG" in later versions? What is the source of this information?
Can anyone report his experience with the BIOS downgrade?
--Thinker 22:05, 26 Nov 2005 (CET)
It seems he is talking, not about the BIOS for entry model R52/T43 models, but about the embedded-controller (EC) firmware.
As such the download link is wrong.
And yes, what is the bug that requires you to downgrade the EC firmware? Without more detail, I would be inclined to remove it.
--Tonko 02:34, 27 Nov 2005 (CET)
I looked around the German website a bit, and found this document: http://www.tell-it.ch/harddisk.php
It does not explain anything more. As such I think the prudent thing to do is NOT backlevel your firmware, but to wait until we either have more details, or an official firmware update from Lenovo.
I will remove the Downgrade Bios piece from the main page as it is clearly wrong anyway in its current form.
--Tonko 02:45, 27 Nov 2005 (CET)
Tonko, the ancient version numbers fooled me too, but the IBM page he links to is about R52 BIOS firmware, not EC firmware. It's plausible that BIOS 1.01 didn't yet include the disk detection code, so maybe the downgrade will indeed silence the warnings. I updated the description to reflect this. Of course, the story about a "bug" is probably wrong -- if test was deliberately introduced due to broken hardware, it is unlikely to be removed in future versions.
--Thinker 20:13, 27 Nov 2005 (CET)
Thinker, the download page he linked to, also applies to T43 entry-models.
He was saying to downgrade the BIOS from 1.03 to 1.01, but the latest BIOS is actually at 1.20, while the EC firmware is currently at 1.03, which made me think he was not talking about a BIOS downgrade, but an EC downgrade.
In any case, without more details I would strongly suggest not to downgrade your firmware as it may possibly break things. BIOS and EC for instance need to be matched typically, and it is possible that newer machines are not compatible with these older firmware releases (not sure if the flash tool will allow you to flash that far back in that case or not).
--Tonko 17:08, 28 Nov 2005 (CET)
Agreed. Maybe the downgrade instructions date back to when BIOS 1.03 and T43 model 1xxx were the latest versions; they sure don't look good now.
--Thinker 17:21, 28 Nov 2005 (CET)
