[REQUEST] Dell Precision T5810 BIOS Unlock

[genius239]

1. Don't you found the abnormal point? No matter what do you changes in amibcp or flashing my mods ,the bios didn't reflect any changes.
So , i feel the bios is automatically revert to default ,as long as you write the changed bios file.

You can do a test again ,still write a modified bios(set "debug" in user ), after you write to bios chip ,you return to os and dump bios with afuwin or intel fpt tool ,then open this dump via amibcp. If the debug option you changed is still shown default ,it prove this bios has revert to default bios.


2. It's not to direct edit ifr file ,you still need to edit the module that extracted via uefitool ,but you need to refer to ifr file.This is why you extract it to a readable file for human.
I can clearly tell you ,edit it can't let hidden options appear on bios interface.

[frankr2994]

I'm sorry. My plan is to make changes that won't be visible to me but I need to make changes regardless. Hopefully they will take effect. I know the ifr is so I can read them. I take the address from the ifr and then I have to edit the efi file. That's where I have a problem. If I just open up the efi file in a hex editor I can't find any of the addresses I found in the ifr extraction. I'll post screen shots of what I'm talking about after work tonight. What I found in one of the modules was the sata operation that I changed. Shown variables for ata, ahci and raid. Variable was programmed in as ahci but the raid variable was set to default. So what I've found is the call to default is taking precedence. I need to edit that in particular. In all my digging I did not find a way to make anything else visible but I may be able to change the invisible settings.

[FriedTm]

I can at least give you undervolting if you want that. not much more...

[genius239]

I can at least give you undervolting if you want that. not much more...

I think this machine didn't contain options "CFG lock" and "Overclocking lock" ,and i guess it hasn't deactive xtu or throttlestop.

[frankr2994]

It has cfg lock and overclocking. The simple way around to change multipliers and voltage with throttle stop is to put the machine to sleep then wake it. Don't know why but that back doors overclocking. Does not help me out with current limits. I hit a hard wall at 158watts which doing prime95 or linpak it smacks that instantly unless I'm running at the stock 3.8ghz. I can make it stable to 4.6ghz so far but intensive operations end up throttling.

[PoYo]

I know this is an old post, but i had a few questions for anyone that is willing to answer. If you open the bios and go to Intelrcsetup there is a folder that looks like it has switches to turn on or off menus or whatever. My question is did any of you mess with that to see what it does. I would, but I don't have the tools to refresh if I brick my pc.. if any of you would try switching all to enabled or switching all to disabled. Thanks..