(UEFI) Dell XPS 15z L511z modded BIOS

Thread Rating:

11 Vote(s) - 4.64 Average
1
2
3
4
5

Welcome
You have to register before you can post on our site. Username: Password: Remember me

Latest Threads
Bios MOD Lenovo L390/ Wifi support MacOS Last Post: DennisWeaver Yesterday 10:50 PM » Replies: 1 » Views: 837
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl... Last Post: help_seeker Yesterday 01:23 PM » Replies: 129 » Views: 53874
[REQUEST] Lenovo ThinkCentre M93p Tiny (... Last Post: sairos Yesterday 10:23 AM » Replies: 60 » Views: 47059
[REQUEST] Lenovo Thinkpad T440p (GLETxxW... Last Post: uncle_Fedya 04-02-2025 03:54 PM » Replies: 524 » Views: 222155
[REQUEST] Lenovo T440(S) (GJETxxWW) Whit... Last Post: Dudu2002 04-02-2025 01:56 PM » Replies: 497 » Views: 207862
[REQUEST] Gigabyte G5 KF BIOS unlock Last Post: Dudu2002 04-02-2025 01:55 PM » Replies: 3 » Views: 339
[REQUEST] Lenovo Legion 5 (EFCNxxWW) BIO... Last Post: Dudu2002 04-02-2025 03:32 AM » Replies: 44 » Views: 21129
Gigabyte b650e aorus master F33b Last Post: Anem 04-01-2025 11:59 PM » Replies: 0 » Views: 236
Xeon E5 2699 V3 (turbo Unlock) for Bios-... Last Post: xlr8r 04-01-2025 11:42 AM » Replies: 0 » Views: 333
[REQUEST] Lenovo Thinkpad X1 Carbon Gen3... Last Post: Dudu2002 04-01-2025 08:50 AM » Replies: 38 » Views: 18046
HP Probook 640 G2 bricked BIOS Last Post: Milovanovic1992 04-01-2025 08:13 AM » Replies: 0 » Views: 261
Dell Optiplex 3060 add 9th Gen CPU suppo... Last Post: nickedasy 04-01-2025 03:31 AM » Replies: 18 » Views: 1471
AM3 support for a Compaq Last Post: *DeathBringer* 04-01-2025 01:01 AM » Replies: 1 » Views: 333
Bios modding to support more RAM (Pegatr... Last Post: *DeathBringer* 03-31-2025 01:33 PM » Replies: 1 » Views: 461
[Request] ASUS X93SV (Whitelist Removal) Last Post: Supercharger 03-30-2025 05:48 AM » Replies: 1 » Views: 2335
Downgrade bios for Acer Aspire E1-571(G)... Last Post: Rodrigowbs 03-29-2025 11:18 PM » Replies: 24 » Views: 21710
[Request] Samsung Series 7 Slate PC Last Post: SwCore 03-29-2025 10:23 PM » Replies: 16 » Views: 17358
[Request] Alienware M18 R1 AMD(version) ... Last Post: 009drmq 03-29-2025 09:20 AM » Replies: 0 » Views: 497
Acer nitro an16-41 device bios is corrup... Last Post: Serwintes 03-29-2025 07:25 AM » Replies: 0 » Views: 376
[REQUEST] Lenovo G710 BIOS Whitelist Rem... Last Post: Sonnnnnni Sid 03-29-2025 06:41 AM » Replies: 485 » Views: 191348

Linear Mode

(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

Posts: 472
Threads: 1
Joined: Sep 2012
Reputation: 38

TimeWalker Offline

BIOS Guru

#1,286

02-04-2013, 02:26 PM

Turns out there's a kext and even an app to control fan is OSX on Dell machines.. there are even sources published for it, which need minor tweaking.
Search for i8kfan.kext and i8kfanGUI.app by PotatoSalad and or i8k.kext by tweakbsd. Both of these solutions are based on i8kutil code from linux.
The later implementation from tweakbsd is able to override automatic BIOS mode but doesn't work with the GUI app.. he hasn't published sources though so how he does thus through DELLDIAG is unknown. For me it behaves erratically - it will freeze the system for half a second every couple of seconds because it accesses SMI on 0xB2 to get and set data.. not sure if it is the case with Inspiron and Latitude machines for which this stuff was originally written in Windows back in 2003 I believe. It was ported to linux in 2005, first ported to OSX in 2007 and now updated this autumn of 2012.

I'm bloody tired of waiting for my HDD caddy to arrive, so I'm holding away installing the SSD. Probably will repaste while i'm in there ..
@kasar did your laptop drop temps significantly after repasting?