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m15 R1, why did Dell disable undervolting?
So I recently bought an m15 r1 and when it came in it was able to undervolt with bios 2.5.0 and everything was good until it wouldn’t boot anymore for some reason and so I got a replacement.
Replacement was updated to bios 2.5.0 but was unable to be undervolted through throttle laptop or XTU. So why did Dell disable this feature in what seems their new batch of laptops.
Below is a link to the problem and how to fix it, but it doesn’t work for me since my laptop always wants to update to the newest bios after downgrading to 1.6.2 using this method. But when it was in 1.6.2 it was able to be undervolted while the previous laptop could be in the latest bios update and still be undervolted.
Honestly I’m calling out to Dell to make a bios update that enables this feature or at least allows us to toggle it on/off in the bios.
It seems to be more common now though that laptop manufacturers want to disable undervolting for some reason.
12302
1
Posted June 23rd, 2020 03:00
I have the same issue, today, after update new BIOS from Dell my XTU cannot change volt and XTU disable many functions. Will Dell have new update to correct this one as soon as possible. Now, I cannot downgrade the BIOS, the failure mode: "Firmware Update failed". Is there any way to fix this one?
My laptop: Dell Precision 5520
CPU Core I7-7820HQ 2.9Ghz
RAM: 16GB
Display: UHD 4K
iGPU: Intel HD Graphics 630
dGPU: Quadro M1200 RAM 4GB
Window 10 pro-64bit latest version.12202
3
Posted June 26th, 2020 23:00
Dell for the win once again!
New BIOS update disables the ability to undervolt. It's like they are intentionally trying to cap the lifespan of their products!
It took me a good 2 months to get this laptop running properly:
- (2 Dell technicians, SSD replacement, Killer Wifi Card replacement, Mother board replacement)
- Repasting, improving thermals configuration with extra padding
- MSI Afterburner for graphics, and ThrottleStop at -140mV for CPU Core/Cache
And now, thank you Dell, you've messed it up with your new BIOS. 5 Stars for self sabotage!
12188
0
Posted June 27th, 2020 01:00
Update:
System: XPS 9570
Tried to downgrade the Bios from 1.16.2:
To 1.15.0 Fail
To 1.14.0 Fail
12049
0
Posted July 6th, 2020 13:00
Has anyone found a way to downgrade firmware, especially Intel ME part. This happened years in the past, someone has built a new firmware with higher version number of Intel ME but with older content so to trick bios into downgrading it. Unfortunately it's hard to get info how to do this from BIOS forums, people there are just mean.
12237
1
Posted July 9th, 2020 04:00
Did you reset BIOS to default? This step is very important, if you don't reset BIOS to default, XTU will not work. Do these steps:
-Downgrade to previous BIOS (BIOS that you can undervolt)
-Log in to BIOS, reset BIOS default (one or two times)
-Disable auto update firmware in BIOS ( maybe in Security item)
-Reinstall again XTU or Throttlestop.
......I did sucess with this way with Dell precision 5520.
11980
0
Posted July 9th, 2020 04:00
I did few downgrades to even lower version of bios, but undervolting wasn't possible. Are you sure of this or it's theoretical ? If you are 100% sure I will redo it again... Thaks for confirmation in advance !
PS - I really need undervolting, right now I disabled 50% cores, so it's doesn't fry my legs, shutting half CPU isn't the solution I desire.
11985
0
Posted July 9th, 2020 04:00
You can downgrade to the old BIOS, the process can fail at ME step but there is no problem. After that you log in to BIOS, restore BIOS default and remember disable/uncheck automatic update firmware in BIOS (you can find this item somewhere in the BIOS) to avoid laptop automatic upgrade to new BIOS. Hope you downgrade successful.
4443
1
Posted July 9th, 2020 05:00
Oh, no, you did wrong. Don't recovery BIOS.
After downgrade BIOS, you must log in to BIOS, click to "Restore Settings" and choose BIOS default.
12229
0
Posted July 9th, 2020 05:00
No luck here. Can't get voltage unlocked. This is what I have done:
> XPS_7590_1.5.0.exe /forceit -> then I was waiting, Intel ME failed, others went well.
reboot. then unplug it and + and plugin AC cable which brings me to bios recovery where I did reset of bios to defaults
I am sure that defaults were loaded, because I see that my custom bios settings are gone (e.g. half cpu disabled, etc.). I might keep 1.5.0 bios as notebook runs cooler.
Let me know if you have done something differently.
Darkangel007
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22 Posts
12369
0
Posted June 21st, 2020 07:00
look man with my experience with same device it's the sweet spot to use the latest bios...
GL
you can undervolt a little with the xtu app but it will affect the performance.