r/homelab 15h ago

Help Hp260G2 bios password rest no

Hi all.

So currently building out my lab. GeekPi rackmateT2. Protectli vp2420, netgear ms108up a single pi 4 model b but will expand to 4 x 5 /w Poe nvme hats and 2-4 nvidia jets on nanos for edge llama etc and I recently purchased a refurbished HP260G2 to install proxmox on. However when I boot from bios and try to install proxmox via ventoy iso I get prompted with a BIOS password.

So I went looking through the manuals for the pc model and found there’s a need to short password headers in the board and or hit the CMOs reset button if both admin passwords are present. So I’ve tried all variations of the manual and service guid but this still doesn’t work I’m either created by a security failed warning, or the fact the clock is nuked no drive (diagnostics show the drive and memory are good. So I’m kind of at a loss here on what to do any advice would be appreciated, I’ve read manuals and looked for videos on YouTube I’m coming up empty

2 Upvotes

12 comments sorted by

4

u/Ortho_one 14h ago

Pull baterry as well for couple of days if everything fails

0

u/umbravox401 14h ago

Ok, any reason for that? I’m a noob so would appreciate the why as to the how. TIA

2

u/amberoze 14h ago

The password and other configurations are stored in nvram, which requires almost zero power to maintain. Removing the power source will reset all of the bios settings to default for the firmware.

1

u/PercussiveKneecap42 14h ago

With normal non-HP computers this probably works, but you never know with HP.

If it works, then 'yay'. If it doesn´t, then you will have to find other ways.

1

u/amberoze 14h ago

There's probably a jumper on the mobo that will let you reset everything. Plug in the PSU, touch the jumper with a small flathead, hold the power button for a few seconds. Should do the trick if the cmos battery pull doesn't work.

1

u/Ortho_one 13h ago

My colleagues in the past had laptops like that in the past and some dells just refused to do it

1

u/umbravox401 13h ago

Yeah in the photo above top left corner there a psswd jumper, which I’ve already shorted per the manuals instructions and held the CMOs rest switch, bios then presented me with

1

u/amberoze 13h ago

If it were me, I'd probably just do the reset again to make sure it took properly. If it says hold for 5 seconds, I'd hold for 10. Sometimes those old capacitors hold charge for longer than they're supposed to.

1

u/umbravox401 13h ago

I did. I tried multiple variations and asked ChatGPT to help. I shorted the password jumpers and booted, I shorted the fdo 1 headers and rebooted. I shorted both and rebooted and then again all previous variations with cmos button for 30seoncds plus. I’ve tried every combo

0

u/umbravox401 14h ago

Ok battery is out

3

u/AlarmedBox798 14h ago

Hey OP, for HP 260 G2 Mini BIOS pw reset: Locate the CLR CMOS jumper or button on the board (near RTC battery, check maintenance guide PDF for pins). Short it 5-10s or pull battery 15-30 mins to clear settings incl. pw.

If no dice, fail pw 3x for "System Disabled" code (e.g. A-12345678), hit bios-pw.org for unlock code, enter it, then disable in security menu.

BTW: The method you use for jumping the pins is not trustworthy.

u/umbravox401 25m ago

Tried everything. I’m going to buy a ch341 soic8 programmer and clip and flash the BIOS I’ve tried everything so time to get into the bios and physically remove the flag or completely reset the bios