


The drive does not work on a 3rd Gen i5, but it worked fine on a 6th gen i5. It seems to have been some BIOS/CPU compatibility issue. The other possible solution is the mentioned USB adapter, this would likely work, as you could just connect the USB after boot, in case the boot process still got blocked when using the adapter. Second, I think you would be able to use the external hard drive method, should the first option fail. Also, once you find it, make sure it actually can support 4 TB HDDs.
#BIOS DC5800 8TB HDD UPGRADE#
You could try searching if the HDD model you got have this 3.3v issue, if it does try blocking the pin to see if it solves the problem, I personally used a piece of non-conductive and heat resistant tape, not sure how it's called. Try looking up BIOS updates without using HP, so figure out your mobo's make and model and try to find a BIOS upgrade for it. The first model in that series that can boot from a 3 TB HDD I believe, is the 8200 Elite.
#BIOS DC5800 8TB HDD PC#
Maybe something weird is happening where the PC freezes because it keeps trying to recognize the drive while the drive gets turned off due to the 3.3v pin?

My 8TB WD HDD needed to block the 3.3v pin to work in my PC, but like you mentioned it only wasn't recognized, it didn't block BIOS access or boot. I booted into the BIOS to see if there were any setting I needed to change. I was going to replace that with a Western Digital 8TB (new and working) but it is not recognized by either the OS or the Disk Management utility in Windows 10. I believe this was primarily for 10 TB and up though? However might be worth a check depending on the drive. Ive just bought an AUrora R11 from Dell Outlet which had a 2TB hard drive along with the NVMe boot disk. This should just prevent them from turning on rather than locking things up, but strange things happen sometimes. Also you failed to mention what type of drive this is? Some enterprise drives don't function with the 3.3v line hooked to them.
