m15 R1, BIOS, undervolt

Hi @Ajbb00 welcome to this free user to user Alienware laptop discussion forum. This is not Dell Support. 

Please share Alienware m15 (R1) CPU identification (example i7-8750H) and BIOS version (example 2.13.0). Thank you. 

Hello @crimsom thanks for all.

I have Alienware m15 R1, processor i7-8750H. I will try to explain my case. When I bougth this laptop has BIOS 1.3.3 and I don't knew that the last bios loock the undervolt. Then I updated BIOS to 2.13.0. When I  start to play or test with cinebech R23 I look that the tempertures was 102ºc Then I start to clean the fan's, change paste with Thermal Grizzy Kronaout. Then the temperatures a little better but 100 º c continue. Next time, I use throttlestop and I saw that can't undervolt. Also PROCHOT default 100ºc. I set offset PROCHOT "2" but dont work this.

Then I try to downgrade BIOS 1.3.3 but I cant by USB or windows. Then, firts step downgrade 2.0.4 by windows and next by USB with BIOS_IMG.rcv version 1.3.3. (fully pass incredibly). Then format and install windows, desactivated UEFI upgrade capsulates and really work!!!!!! I can undervolt now. But when I check the bios I see BIOS 2.0.4. Then I don't undertand what happend when BIOS 1.3.3 totally pass. The temperatures are  a little better too ( -0.120v) CPU cache and core. Then I feel the fans are really noise and I try to get the better version of bios to try to install without lost undervolt. Also, I will try to change paste again with  Thermal Grizzy Kronaout extreme, change termal pads. I would like to update BIOS if is possible. I try to reed *.rcv maybe I can found information about look undervolt but I don't know. Finally , I would try to get better temp maybe 90º witout lost frecuency with CPU is 100% for game. 

Thank for ur recommend

BIOS 2.0.4

Hello @crimsom , I have more information about BIOS.

If this information is true, How can I upgrade the last BIOS ( 2.13.0 ) without lost undervolt??

¿Is possible?

Hi @Ajbb00 thank you for sharing updates. 

The BIOS files are very small and only provide the change described in the BIOS description (but change is not clearly stated for user consumption). If the BIOS update is not required by any of your applications, do not install BIOS update. Advocate that you do not update the BIOS that came with your system, so that system retains all the as advertised features, e.g. undervolt, overclocking, Max CPU temperature, etc. 

We note that some Window Updates impose Intel CPU & GPU downgrades. These Window Updates should be removed if you want to retain full specification parts. 

@crimsom  than'ks for ur help.

Then If I update a version of BIOS only install the information that I can read about it? For example.

BIOS 2.4.1 say:

I know that INTEL-SA-00289 (CVE-2019-11157) lock undervolt. 

Then, The next version of BIOS 2.5.0

This version 2.5.0 Install only 

Fixes & Enhancements
Fixes:
- Firmware updates to address the Intel Security Advisory INTEL-SA-00320 (CVE-2020-0543).
- Firmware updates to address the Intel Security Advisory INTEL-SA-00329 (CVE-2020-0548 and CVE-2020-0549).
- Firmware updates to address security advisory INTEL-SA-00295 (CVE-2020-0534, CVE-2020-0536, CVE-2020-0539, CVE-2020-0541, and CVE-2020-0542)

Or is possible that BIOS 2.5.0 install caracteristics of 2.4.1 ( as CVE-2019-11157) and I can lost undervolt?

Thank u

Hi @Ajbb00 thank you for sharing update. 

Do not understand why BIOS updates are being installed for no apparent request from any of the applications. Just because Dell has posted a BIOS update, is not justification to install BIOS update.