DarkFamiliarity
Got it, so I would be getting this to flash on one of the slots: 4898_XOC_LHR_ovu.zip to get the 450W limit, maintain ReBAR support, and change it to be recognized as a hybrid? Thanks and sorry for the confusion.
 
(To go from 10G-P5-3897-KL to the Hybrid 4898 even though the post says 3898 to 4898)

I updated the link and text for people with either 4898 or 4897 Device ID, such as yours, who want to flash to the HYBRID XOC BIOS.  Grab that one instead.

EVGATech_LeeM

DarkFamiliarity
Got it, so I would be getting this to flash on one of the slots: 4898_XOC_LHR_ovu.zip to get the 450W limit, maintain ReBAR support, and change it to be recognized as a hybrid? Thanks and sorry for the confusion.
 
(To go from 10G-P5-3897-KL to the Hybrid 4898 even though the post says 3898 to 4898)

I updated the link and text for people with either 4898 or 4897 Device ID, such as yours, who want to flash to the HYBRID XOC BIOS.  Grab that one instead.

Got it, just grabbed this file: 10G-P5-4898_12.14.22.zip
 
This brings up a bit more confusion - I would grab this even though my card is 3897 and not 4897 right? And within this folder there are more files - if I want the latest XOC, do I use "\10G-P5-4898\XOC\2nd_U10830\4898_OC_450W_ovu.exe" or which exe should I use? Thank you
 

So, the part number of the card you purchased is always going to be 10G-P5-3987-KL, which means it's a 3080 FTW3 Ultra LHR card.  All cards have varying changes over time, and we often have a separate internal part number to designate certain types of changes, and often the Device ID (which is what you saw in GPUz shows) may be slightly different than what's on the box.  For example, the original Device ID of 3987-KR is 3987, of course.  When changing to LHR, the Device ID to keep track of this change went to 4987 and other EVGA 30 Series cards followed this change.  In your case, you're flashing it over to the LHR version of the HYBRID.  The 3080 FTW HYBRID will still be 10G-P5-3988-KL on the box, but the LHR version Device ID will show 4988, similar to what you see in GPUz with yours.
 
The XOC folder in the zip you downloaded has an XOC version with Normal BIOS behavior (i.e. the fan will turn off at low temps) and OC BIOS behavior (i.e. the fan will remain on and be a bit more aggressive).  You can flash one, or both, if you choose.  The other folders are if you want to just update the Normal or OC BIOS with the HYBRID BIOS.

EVGATech_LeeM
So, the part number of the card you purchased is always going to be 10G-P5-3987-KL, which means it's a 3080 FTW3 Ultra LHR card.  All cards have varying changes over time, and we often have a separate internal part number to designate certain types of changes, and often the Device ID (which is what you saw in GPUz shows) may be slightly different than what's on the box.  For example, the original Device ID of 3987-KR is 3987, of course.  When changing to LHR, the Device ID to keep track of this change went to 4987 and other EVGA 30 Series cards followed this change.  In your case, you're flashing it over to the LHR version of the HYBRID.  The 3080 FTW HYBRID will still be 10G-P5-3988-KL on the box, but the LHR version Device ID will show 4988, similar to what you see in GPUz with yours.
 
The XOC folder in the zip you downloaded has an XOC version with Normal BIOS behavior (i.e. the fan will turn off at low temps) and OC BIOS behavior (i.e. the fan will remain on and be a bit more aggressive).  You can flash one, or both, if you choose.  The other folders are if you want to just update the Normal or OC BIOS with the HYBRID BIOS.

Thank you very much for the detailed explanation! That clears up all the questions I had with the installation process. 
 
I went ahead with the install of 10G-P5-4898\XOC\1st_U2\4898_Normal_450W_ovu.exe, but PX1 shows the card as RTX 3080 FTW3 Gaming. The LED section still shows the air cooler LEDs and not the LED from the Hybrid cooler. Is there anywhere I can check to see if the card is now being detected as a hybrid? The BIOS version changed from 94.02.71.40.A9 to 94.02.71.40.B6 after the flash and reboot. GPU-Z lookup now says "Graphics device lookup failed" if that info helps at all, thanks.

Did you disable Fast Boot in your BIOS before flashing?

EVGATech_LeeM
Did you disable Fast Boot in your BIOS before flashing?

Yes, fast boot is disabled in the BIOS and in system settings.

Try moving the file to your desktop or directly to your C: drive root and try again.

EVGATech_LeeM
Try moving the file to your desktop or directly to your C: drive root and try again.

I moved the file to the C drive root, as my desktop is on the D drive. I ran it as admin, rebooted, and Precision X1 still shows it as an RTX 3080 FTW3 Gaming.

@EVGATech_LeeM
 
I'm looking to do the same type of bios update as @DarkFamiliarity, but holding off on further attempts until a solution is udpated here.  
 
1)  Starting with 10G-P5-3987-KL (3080 FTW3 LHR), recently installed the Hybrid Kit, and now trying to get the Hyrbrid XOC Bios. 
2)  PX1 showing "GeForce RTX 3080 FTW3 ULTRA GAMING" and Device ID 4897.    GPU-Z showing Device ID 4897, and BIOS Version: 94.02.71.40.A9
3)  Made sure fast boot and CSM are disabled prior.
4)  Tried flashing "4898_XOC_LHR_ovu" as admin.  Screen goes black for a few seconds, and then comes back on with a message in the console saying, "The display adapter firmware is up to date".  During the brief time the screen was black, the fans didn't spin up nor did the red lights appear on the card that I've noticed occuring when Precision X1 does a firmware update.
5)  Rebooted and GPUZ and Precision X1 still show the same device ID and "GeForce RTX 3080 FTW3 ULTRA GAMING", not the Hyrbid.  
 
Other thoughts - I'm running Windows 11, are there any compatibility issues there?  
 
 

EVGATech_LeeM
Try moving the file to your desktop or directly to your C: drive root and try again.

Hi, I was just wondering if there were any updates on this? Thanks.