T640 Rollback

My first question would be why roll back?
if you really want to go down to that level, you would probably have to step it down a few versions at a time. 
if you go to this link, then scroll down to other available versions, you will see a list of versions. I would work my way back 2 or 3 versions at a time. Very time consuming. 

iDRAC 7.00.00.181 | Driver Details | Dell US

Rey
@#Iwork4Dell

@DELL-Rey G​ 

I have 3 other T640's with 3.21.21.21. Currently with the Enterprise license I can control the LFM per slot as I have third party cards that have different cooling needs .  6.x requires a Data-center license.  

Ok ... The only rollback 'Available' package shown is 3.21.21.21  and you are saying not to use it. Instead load each lower version one step at a time....

If in this process I brick the iDRAC, can I utilize the FW recovery procedure via the SD card with 

the firmimgFIT.d9 package from the previous working version???? I am asking because as I read the docs it seem to only work with a missing boot loader (Flashing blue Light).  Or will it always read the SD card and load the firmimgFIT.d9???? Or can I force it to????

Thank you for your quick response. I appreciate you taking the time to help.....

@Bronco99​ you dont have to go back one at a time, but it would probably be safer. I have personally never used the recovery process with the firmimgFIT.d9 file, but its looks straightforward. The boot process should pick it up because you can set the boot process. 

Rey
#IworkDell

In my opinion I think you need to use outdated firmware to accommodate your 3rd party cards, so you can try to do step down downgrades and hope for the best 
 
if you brick iDRAC we have an article on recovery here https://www.dell.com/support/kbdoc/en-au/000120131/poweredge-idrac-recovery-procedure-with-firmimg-d7

Respectfully, 

@DELL-Young E​ 

Thank you for the reply. I have found the dual SD card reader (RT6JG) on ebay and have in coming just in case.

As I read the doc, it appears the firmimgFIT.d9 is an image and not a bootable item. So it appears unless the boot loader is missing from the iDrac internal flash it may not look for the firmimgFIT.d9 on the sd card. I have looked for settings to to force it to load the image in the bios but I seem to only be able to force the SD card reader to become the boot device.

Is my assumption correct or is there a way for force the iDrac to load that image on boot regardless of its health???

Again .. Thank you for taking the time to help.

PS. I am a retired IT Manager. My Personal collection starts with the 8th Generation.

Hello,

It looks like this is as far back as you can downgrade:

4.40.40.00, A0007 Jun 2021

https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=1r1y2&oscode=wst14&productcode=poweredge-t640&src=o

NOTE: iDRAC 9 Enterprise will not downgrade from 4.40.40.00 to 4.40.10.00

https://www.dell.com/community/en/conversations/systems-management-general/idrac-9-enterprise-will-not-downgrade-from-4404000-to-4401000/66b27a7740d71075c417d665

@DELL-Charles R​ 

Thank you for the info..... Wow .. Good to know...

Yea the servers are not under my pillow...... Fan noise is not an issue here. First thing I put in the new house drawings was a Server Room in the basement.

For example ...  With the GTX-1660 in my grandson's (He is 10 years old)  T640 (Gaming Machine) we need to run the fans at approx 56-60 pwm to keep the GPU under 75c.  I just don't want them to run at 100% all the time.

Ok one last question... Can you verify that I will have "PCIe airflow customization (LFM)" option with a Datacenter license as indicated on page 28 ->https://dl.dell.com/content/manual24574503-integrated-dell-remote-access-controller-9-user-s-guide.pdf?language=en-us

I know things change, just want to make sure this option is still available per the manual before I dig into the wife's piggy bank....  

Thank you all for your help.....

@DELL-Young E​ 

Thank you all for your help ... !!!!