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X250 BIOS Unlocked : Is there one?
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X250 BIOS Unlocked : Is there one?
Hello, I've plan to buy X250 near future, but I'm not sure if X250 BIOS has Unlocked one, and if there are unlocked on, is there any option to disable the hyper thread? I want to minimize the power draw as low as possible. Last time with X240, undervolt only, I can only reach 2-5w for typing with VIM in Linux Fedora Spin XFCE. But When firing browser, it will grow to 11w on average.
I have X220, and with HT disabled (i7 2640m), the power draw drop significantly on low browsing from 14-15w to 8-10w on average. If anyone can answer my silly question, I really appreciate it. Thank you so much!
Long Live THINKPAD!
I have X220, and with HT disabled (i7 2640m), the power draw drop significantly on low browsing from 14-15w to 8-10w on average. If anyone can answer my silly question, I really appreciate it. Thank you so much!
Long Live THINKPAD!
X220 with Win 10 21H2 Fedora 38 XFCE 4.18 (official spins)
i7-2640m, disabled Hyper Thread, Temp Drop on average 10*C, all core activated, need KVM for Windows
12gb RAM (enough for now, DDR3L)
480 Kingston Fake SSD
64gb Samsung SD Card
Recently rolled back to Windows 7 from Win 10 21H2. Sad
i7-2640m, disabled Hyper Thread, Temp Drop on average 10*C, all core activated, need KVM for Windows
12gb RAM (enough for now, DDR3L)
480 Kingston Fake SSD
64gb Samsung SD Card
Recently rolled back to Windows 7 from Win 10 21H2. Sad
Re: X250 BIOS Unlocked : Is there one?
Hey has anyone responded to you on this? I can check on my i7 X250 if you would like.benlimanto wrote: ↑Mon May 30, 2022 6:43 amHello, I've plan to buy X250 near future, but I'm not sure if X250 BIOS has Unlocked one, and if there are unlocked on, is there any option to disable the hyper thread? I want to minimize the power draw as low as possible. Last time with X240, undervolt only, I can only reach 2-5w for typing with VIM in Linux Fedora Spin XFCE. But When firing browser, it will grow to 11w on average.
I have X220, and with HT disabled (i7 2640m), the power draw drop significantly on low browsing from 14-15w to 8-10w on average. If anyone can answer my silly question, I really appreciate it. Thank you so much!
Long Live THINKPAD!
MadIceTea, Thinkpad Enthusiast
Daily: X250 FHD
Museum: PC110 20MB, X61 T9300 SXGA+ LED
Donated: x2001 AFFS i5-530 (to my alma matter)
Past: 701Cs German, 535/X, 760E/XL, i-series 12/14xx, piano s30, R60e, X60, X61, T60, T61, X200 P8700, X121e
That chicken sure looks funny.
Daily: X250 FHD
Museum: PC110 20MB, X61 T9300 SXGA+ LED
Donated: x2001 AFFS i5-530 (to my alma matter)
Past: 701Cs German, 535/X, 760E/XL, i-series 12/14xx, piano s30, R60e, X60, X61, T60, T61, X200 P8700, X121e
That chicken sure looks funny.
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- Freshman Member
- Posts: 55
- Joined: Fri May 20, 2022 12:21 pm
- Location: Surabaya, East Java, Indonesia
- Contact:
Re: X250 BIOS Unlocked : Is there one?
No, would you please help me if possible? I really appreciate it!
Thank you!
X220 with Win 10 21H2 Fedora 38 XFCE 4.18 (official spins)
i7-2640m, disabled Hyper Thread, Temp Drop on average 10*C, all core activated, need KVM for Windows
12gb RAM (enough for now, DDR3L)
480 Kingston Fake SSD
64gb Samsung SD Card
Recently rolled back to Windows 7 from Win 10 21H2. Sad
i7-2640m, disabled Hyper Thread, Temp Drop on average 10*C, all core activated, need KVM for Windows
12gb RAM (enough for now, DDR3L)
480 Kingston Fake SSD
64gb Samsung SD Card
Recently rolled back to Windows 7 from Win 10 21H2. Sad
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- Admin Emeritus
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- Location: Loch Garman, Éire
Re: X250 BIOS Unlocked : Is there one?
Unless you get your BIOS modded, there is no 'advanced settings' option.
https://www.bios-mods.com/forum/Thread- ... ttings-tab
https://www.bios-mods.com/forum/Thread- ... ttings-tab
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
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- Joined: Thu Oct 11, 2007 9:20 pm
- Location: Wanganui, New Zealand
Re: X250 BIOS Unlocked : Is there one?
Hi, replying I guess for posterities sake but I've been down this road.
You don't need to a modded bios to do this. The fifth generation 'U' style CPUs can be super efficient. The best I got was from the Acer C740 chromebooks converted to linux. 1.9-2.3w in a terminal in X. 14 hours realistic battery life if in a terminal or such like. The chromebooks are good because they are reference Intel implementations there is no funny business with their hardware implementation.
In regards to switching off HT you will find a lot of stuff on the Internet. Basically you can do it in the kernel boot stage in GNU/Linux but not the way they say. You have to try the different suggestions and then check after you boot because the most often referenced solution doesn't work. It was a long time ago and can't remember the solution to turn off hyperthreading but there is a way with a kernel switch. Just don't ask me what it is.
Any here's the thing. Like people point out. Turning off hyperthreading doesn't make power consumption go down
So, don't bother. Power consumption goes up with HT turned off. Anyway, good luck on your journey. A couple of things I found out. Using a terminal in the console is less efficient than using one in X. But yes that generation of CPUs is super efficient.
You don't need to a modded bios to do this. The fifth generation 'U' style CPUs can be super efficient. The best I got was from the Acer C740 chromebooks converted to linux. 1.9-2.3w in a terminal in X. 14 hours realistic battery life if in a terminal or such like. The chromebooks are good because they are reference Intel implementations there is no funny business with their hardware implementation.
In regards to switching off HT you will find a lot of stuff on the Internet. Basically you can do it in the kernel boot stage in GNU/Linux but not the way they say. You have to try the different suggestions and then check after you boot because the most often referenced solution doesn't work. It was a long time ago and can't remember the solution to turn off hyperthreading but there is a way with a kernel switch. Just don't ask me what it is.
Any here's the thing. Like people point out. Turning off hyperthreading doesn't make power consumption go down
So, don't bother. Power consumption goes up with HT turned off. Anyway, good luck on your journey. A couple of things I found out. Using a terminal in the console is less efficient than using one in X. But yes that generation of CPUs is super efficient.
GNU/Linux user--An Arch'er
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