Y740 hidden bios Thanks for the images, maybe all I need, or all we’ll find is in these images. 10 to v1. After comparing with official bios image, this padding area should be DMI info area. I'd recommend not updating to the latest bios, not only did Lenovo mess up the manual fan control on previous bios updates but now the new update completely removes the ability for 3rd party programs such as Afterburner to adjust the fan curve. Any software or support resources provided by Lenovo are made available “AS IS” and without warranties of any kind Mar 2, 2023 · Hello, I need if you can fix my bios of my lenovo y740 15irhg, enter the advanced configuration and touch some voltages and it did not turn on anymore, is it possible to fix my bios without losing my windows password and my license plate number? thank you so much. Y740 BIOS backflash Hi all, I have a Legion Y740-IRHg (i7 9750H, RTX 2070 Max Q) and am on BIOS BVCN16WWV1. View and Download Lenovo Legion Y740-15IRH user manual online. Please enable it to continue. Your computer may include a setup program (setup utility) with which you can change UEFI/BIOS settings. So I found some steps for a Lenovo Y740 to grab the bios region, I tried to write the bios region to the chip, it fitted the bios chip, but the machine does not boot and is doing less than before. Go into the BIOS to disable Secure Boot 2. I have a legion Y-540. Apr 3, 2019 · Hi guys, so I bought the new legion 740 15" and so far I'm loving it. zip (74. Welcome to Lenovo and Motorola community. I have to restart the laptop to use it again. org Join the Discord httpsdiscord. Seems like Lenovo DOES infact have an advanced section of BIOS that allows customization of power limits, RAM (xmp) timing and some other goodies. I have a Y740 15in running bios BVCN14 1. Jul 5, 2019 · Lenovo Legion Y740-15IRH BIOS Update BVCN10WW for Windows 10 64-bit 100 downloads BIOS | Lenovo Windows 10 64 bit Jun 27th 2019, 17:57 GMT Debug feature accessible by FN + every key on the keyboard, then F10, then hit F2 on boot 28 votes, 24 comments. 0 Bios Apparently, there's a way to get into a hidden bios that unlocks the voltage while having control of the fan speed, but I can't try it myself to confirm it just yet. View and Download Lenovo Legion Y740 Series user manual online. Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS 1 r/LenovoLegion Thought you guys might be interested in THIS. For connectivity, theres Wireless 6E and Bluetooth 5 through an Intel-based Killer 1675i chip on this laptop. It is now limited to 80w which is a large performance hit. UEFI/BIOS initializes the hardware components and loads the operating system and other programs. I have attached the old BIOS dump, and would very much appreciate it, if you could be so kind and send me a new BIOS (preferably the most up to date version) with all DMI information transferred. I thank you very much in Aug 30, 2025 · Lenovo Legion Y740-15 ICHg (!). 6 KB) Manuals and User Guides for Lenovo Legion Y740-15ICH. I then tried reverting the bios back to the previous version and that's why I'm here. We have 2 Lenovo Legion Y740-15ICH manuals available for free PDF download: Hardware Maintenance Manual, User Manual Hello, Today I tried to downgrade bios from the latest to 1. Jun 9, 2020 · This package provides BIOS Update and is supported on Legion Y740-15IRH, Legion Y740-15IRHg, Legion Y740-17IRH, Legion Y740 IRHg and running the following Operating Systems: Windows 10 (64-bit) Feb 23, 2022 · File Request Lenovo Legion Y740-15ICHg Y740-17ICHg=16=ELPY5 ELPY7 LA-G132P Rev 2. Applicable Brands ideapad Applicable Systems Legion Y740 System Is Configured With Nvidia graphics card Operating Systems Windows 10 Solution Turn the machine off. What I am most interested is unlocking the GPU power limit for the 2080 max Q. something that can be controlled by user with fancontrol script). Whether you're looking to adjust boot order, enable virtualization, or update Mar 21, 2022 · Important Information BIOS, abbreviation of Basic Input/Output System, is integrated in ROM chip on main board, which contains the basic input/output program, system configuration information, system startup self-check and pre-setup programs. To get into BIOS, or get a boot menu, you have to power off the laptop, and press this button with a pin. 10? Lenovo Y740 Bios update, loud fan noise Activate Motivation🟥Tech🟦Lifehack 447 subscribers Subscribe Aug 30, 2025 · Lenovo Legion Y740-17IRH, Legion Y740-17IRHg. Aug 25, 2020 · Re: missing fan controls on Lenovo Legion Y740, Ubuntu 20. It was a huge risk i had to take and just recently i got the latest BIOS v BVCN16WW notification on my laptop. Also for: Legion y740-15ichg, Legion y740-17ichg, Legion y740 series, Legion y740-15irhg, Legion y740-17irh, Legion y740-17irhg, 81he, 81hh, 81uf, 81uh, 81ug, 81uj. 0 Lenovo Legion Y740-17ichg - LA-G132P REV2. Welcome to /r/Lenovo, A place where Lenovo owners and prospective buyers can engage… Hi So to explain how I got to the issue I'm having. Bismillah dijual Laptop Lenovo Legion Y740 - 15IRHg Laptop gaming cocok untuk game game Triple A misalnya Cyberpunk, Assasin Creed dll. This version has intel i7-10750H cpu and nvidia rtx 2080 super max-q dis However, this method worked previously on the y740-17IRHg BIOS v1. I updated the bios through lenovo vantage to the new Bios no issues there. 09. Spesifikasi sbb: Processor: Intel Core i7-8750H or i7-9750H Symptom The system will power on and display the Legion Logo, but then show a black screen at startup. Works on all latest BIOS i had recently updated the bios for my lenovo legion y740 from v1. It also does the same thing where it sounds like you just shut the fans off completely. If anyone does know how its worked out please let me know! Bios Mods - The Best BIOS Update and Modification Source › Bios Mods Forum › Insyde BIOS Unlocking Requests [REQUEST] Lenovo Legion Y740-15ICHg BIOS Unlock Thread Rating: 1 2 3 4 5 Forum Jump: This package provides BIOS Update and is supported on Legion Y740-15ICHg, Legion Y740-17ICHg and running the following Operating Systems: Windows 7 (64-bit), Windows 8. Mar 1, 2020 · This Bios has the Debug Mode active so we can try to show the hidden page by the Fn+D key using this procedure : Boot to Bios and quickly Press key Fn + key D, then release Fn and quickly press F10 to save and exit. 12 (although I must to repeat the procedure after the update to v1. Bios successfully downgraded/updated but now it won't boot into Windows. GKCN34WW, Bios is InsydeH20 Lenovo Legion 5 PRO MainBoard : Lenovo LNVNB… This package provides BIOS Update and is supported on Legion Y740-15ICHg, Legion Y740-17ICHg and running the following Operating Systems: Windows 7 (64-bit), Windows 8. Then fan control button just enables a full blown gaming mode. Jan 2, 2022 · I read around for a while on unlocking the mythical advanced bios, tried all key combinations read every post watched every youtube I could find, all to no avail, it only worked on earlier models was the consensus. Please contact the moderators of this subreddit if you have any questions or concerns. Feb 4, 2021 · [Solved] Lenovo Legion Y740-15IRH BIOS Recovery Discussion in ' BIOS Mods ' started by Tyroq, Feb 4, 2021. Jul 8, 2022 · Hello everyone! My friend bricked his Lenovo Legion Y540-15IRH by shutting it down, I tried to download the latest bios and program it but the bios file is bigger than the bios chip. Jun 7, 2020 · Lenovo Legion Y740 Gaming Laptop, 17. i found that the undervolt settings i set up in throttlestop have been locked. Big thanks to him. Manuals and User Guides for Lenovo Legion Y740 Series. Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Feb 19, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 5, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 7, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 7, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 5, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 7, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jan 7, 2024 · Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS Lenovo Legion Y740-15IRH Intel I7-9750H This laptops fans spin up to 100% like Jun 9, 2020 · This package provides BIOS Update and is supported on Legion Y740-15IRH, Legion Y740-15IRHg, Legion Y740-17IRH, Legion Y740 IRHg and running the following Operating Systems: Windows 10 (64-bit) To enter the BIOS menu on your Lenovo Legion Y740, restart your computer and press F2 when the Lenovo logo appears on the screen. We have 4 Lenovo Legion Y740 Series manuals available for free PDF download: Hardware Maintenance Manual, User Manual, Setup Manual Welcome to Lenovo and Motorola community. Nov 2, 2019 · Legion Y740-15ICHg, Legion Y740-17ICHg BIOS ELPY5 1. 08 on my y740 15irhg. If it’s not possible to achieve that with system bios modding, do you think vbios modding is the route to go? Any help would be much English Community-Lenovo Community Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS 1 comment r/LenovoLegion Locate the hidden menu with 4G Decoding. It currently power throttles at 90W. Lenovo System Update should be used to update your system after a new setup or re-image. Can I do anything with it? or the video card of the machine is faulty! Feb 19, 2024 · Immediately hit F2 repeatedly and you'll now have the hidden bios available. On another note how are you liking the Y740? Mine keeps getting delayed in shipping, and I have a MSI raider I am trying out right not. That is correct, it disables the undervolting or any sort of voltage changes be in Intel xtu, throttles top or even bios hidden advance menu in bios. Lenovo took this update down eventually so I'm skeptical of updating from the one I'm on. Jan 7, 2020 · That brings me to the BIOS. Thinking it may had to be related to Learn how to enter the Lenovo BIOS setup utility in Windows 10 or 8 with this video guide. The max fan feature for the 8th gen y740 (which is more talked about) was removed in the bios version 1. Feb 4, 2021 · Using UEFITool to open backup image file and found an padding area at the start of bios region, which is from 60000 to 6CCFFF. BIOS provides most basic low-level hardware operations; it is the connection between software and hardware, and interfacing window of hardware and A short video explaining how to get into the advanced bios for the lenovo legion 7i. If the website doesn't work properly without JavaScript enabled. Bios chip is a Winbond 25Q128JVSO. , Legion Y740-17 ICHg (!). Jan 3, 2020 · The Legion series is Lenovo's lineup of gaming notebooks, and the Y740 is their highest-tier offer as of the first part of 2019. From what I understood it disables g-sync and runs Intel integrated graphics, saving Legion Y740 Advanced bios How do you guys access the advanced bios option on legion y740? 5 Add a Comment Sort by: LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. Having the latest downloads and drivers helps optimize the performance of your Lenovo system. File -> Save to save the modified BIOS. Then a random god send on the Lenovo forum sent me a link to a windows app that one click unlocks your advanced BIOS for most Lenovo laptops, within a minute I was into the advanced Sep 9, 2020 · Hello there, I was hoping to have this bios modded to show hidden features. Jul 28, 2024 · After reading around I saw that it was disabled in a later BIOS but most of the options in Throttlestop were available to me. Change Access to USER. I was wondering if it's fine to backflash to an earlier bios version from this one? OKAY so last time i updated to version BVCN15WW lenovo locked undervolting and i had to flash my BIOS using a guide i found on reddit. 08 to remove the ability for GPU to take 90w. Next to the side USB port on the laptop, there’s a pinhole. Yes, a pin, a paperclip doesn’t even fit. Does it worth to install the latest bios of Legion Y740-IRHg (aka BVCN16WW) which corrects a bunch of CVEs and hack the Overclocking lock bit afterwards? I guess that many of the fixed CVEs are about TPM and maybe ransomwares protection ; so I think, it is a serious matter. i could see that the settings that i had applied are active but i cannot make any further changes. I've checked the files from the new BIOS again to see if this modification is still possible before the update (a location of the bit to be changed). Hello everybody, I got a bricked Lenovo Legion Y740-17ICHG. 04 Laptops don't use generic PWM (i. It seemed users had a lot of trouble with the previous bios update 1. Find CPU thermals, and you'll see that the trip 0 is 75% @ 71 degrees and trip 1 is 100% at 95 degrees. Press F10, select yes Lenovo System Update is used to update/install Lenovo drivers, BIOS, and applications. 12, but the fan speeds don't seem right to me compared to earlier versions. 10. 09 in any of the tabs, you should downgrade. 5K views 11 months ago How to Tweak HIDDEN BIOS SETTINGS (Intel & AMD) more Live chat replay The newer bios makes the machine run hotter, as well as removes the possibility of maxing out the fans with FN+Q. I don’t know laptops and netbooks :: legion series :: legion y740 15irh :: 81uf Lenovo PC Support - Lenovo Support USEnd of Development Support This product is no longer being actively supported by development (End of Development Support) and no further software updates will be provided. Subscribed 152 5. The motherboard version is LA-G132P. 07. Where did you get this then?? >> MP1NN7V1 << I assume it was on some sticker and thus the correct one to use. Except they've locked out under volting on the newest BIOS and I have no control of cores through throttle stop. Legion Y740-15IRH laptop pdf manual download. However, despite changing the CPU and CPU cache to -125mV, saving the profile and applying it the voltage didn't change at all. This package provides BIOS Update and is supported on Legion Y740-15ICHg, Legion Y740-17ICHg and running the following Operating Systems: Windows 7 (64-bit), Windows 8. You'll need to go to advanced bios of legion y740 To go to advanced bios of legion y740 Follow those steps Get into bios While in bios hold FN then run your finger across the keyboard from Q-P, A-L, Z-M (run as in, hold fn button then start pressing q w e r t y u i o p a s d f g h j k l z x c v b n m) Then let go of FN, 4 . Jun 9, 2020 · This package provides BIOS Update and is supported on Legion Y740-15IRH, Legion Y740-15IRHg, Legion Y740-17IRH, Legion Y740 IRHg and running the following Operating Systems: Windows 10 (64-bit). How do I disable the intergrated graphic in the bios in my laptop. 0. * Ohh, I see, on your “sellers” included sticker The dump above, I 1. Entering the BIOS on your LENOVO Legion allows you to access advanced system settings and configure hardware options. for motherboard with Bios chip Winbond 25Q128 JV or Mxic MX25L12873F (!). ThinkVantage System Update (TVSU) is now Lenovo System Update. Any software or support resources provided by Lenovo are made available “AS IS” and without warranties of any kind UEFI/BIOS initializes the hardware components and loads the operating system and other programs. If you go to your bios by the steps in this post and see 1. MTM won’t get auto-populated. laptops and netbooks :: legion series :: legion y740 15irh :: 81uf Lenovo PC Support - Lenovo Support USEnd of Development Support This product is no longer being actively supported by development (End of Development Support) and no further software updates will be provided. Feb 3, 2021 · Hello everybody, A few days ago, Lenovo Vantage stopped working after i updated the BIOS to the latest version. This will allow you to access and adjust advanced settings in the BIOS. 10 and it does not boot The bios option backlash was enabled before downgrade and after downgrade I received the message that it was successfully updated to 1. Apr 29, 2021 · This Bios has the Debug Mode active so we can try to show the hidden page by the Fn+D key using this procedure : Boot to Bios and quickly Press key Fn + key D, then release Fn and quickly press F10 to save and exit. only one, MAIN Bios Chip! If your computer has a different motherboard, or a different bios chip, ask about compatibility before buying it! It seems Lenovo decided with bios 1. Feb 4, 2021 · Complete process to flash main bios chip/ic using CH341a SPI Programmer (confirmed on Lenovo Legion Y740 15IRHg): (DISCLAIMER: I will not be Apr 7, 2016 · [Solved] Lenovo Legion Y740-15IRH BIOS Recovery Discussion in ' BIOS Mods ' started by Tyroq, Feb 4, 2021. pdf LA-G132P boardview 1-2 days ago I spent TEN HOURS flashing EVERY version of the Legion Y740 15-ICHg BIOSes, benchmarking them ALL and checking EXACTLY what the differences were between every BIOS. USE THE SEARCH BEFORE POSTING!!! Get Linux Tips here httpsasus-linux. Downgraded Y740 bios from 1. Get your Lenovo computer running smoothly and optimize performance. I was hoping to have it increased to 110 W for higher clock ceiling. 1 (64-bit), Windows 10 (64-bit) Sep 9, 2020 · Hello there, I was hoping to have this bios modded to show hidden features. The bios files and versions for the 8th gen i7 variant of y740 and the 9th gen are different. 7+ beeping sounds after trying Advanced BIOS key combinatiom in Lenovo Ideapad 5 14 gen8 Hello everyone, I am trying to access the hidden bios in my Ideapd 5 pro. I've been researching this lately and it seems like most of the OEMs do-it's just locked. The fans just go all out, once you turn them off it goes back to auto. it’s fine, but at boot time, there’s no “press X to enter setup”, its hidden away. pdf How to safely undervolt y740 on advanced bios v1. For IT Adminstrators, the Lenovo System Update information is available at: Download I just updated to bios version bvcn16ww and it has been giving me screen flickering issues every time my laptop goes into sleep mode. Jun 9, 2020 · This package provides BIOS Update and is supported on Legion Y740-15IRH, Legion Y740-15IRHg, Legion Y740-17IRH, Legion Y740 IRHg and running the following Operating Systems: Windows 10 (64-bit) Lenovo Y740 - 15IRH BIOS BVCN14WW update or no? Vantage is indicating that there is a BIOS update available on my Y740 2019 and one of the notes it mentions is enhanced security for the CVE2019 - 11157 vulnerability which is called Plundervolt. 11 (BVCN15WW). The newest bios update BVCN16 just came out a few days ago it looks like. pdf LA-G132P boardview However, this method worked previously on the y740-17IRHg BIOS v1. 3" Full HD IPS 144Hz Screen, Intel Core i7-9750H Processor, NVIDIA GeForce GTX 1660 Ti, 16GB RAM, 256GB SSD + 1TB HDD, RGB Backlit Keyboard, Windows 10 Home, Black Nov 2, 2019 · Legion Y740-15ICHg, Legion Y740-17ICHg BIOS ELPY5 1. one of the few less good things is the battery life. This would mean that we could use better (XMP) ram rather than adhereing to jedec specs & change power limits Even the GE75 Raider is this way. 63K subscribers in the Lenovo community. is flashing back to a previous bios version the only way to access undervolt settings / are there other possible ways to access Hey, have any y740/540 owners updated to the newer v1. 11 which tool away undervolt ability and caused other issues. How to unlock undervolt for Intel 10th and 11th gen laptop CPUs in Lenovo Legion 5, Legion 7 and Ideapad Gaming 3 laptops. my laptop - Y740-17IRHg. 10 ELPY5/ELPY7 LA-G132P Rev 2. I get BSOD Aug 15, 2019 · This article shows you how to enable Secure Boot on ThinkPad, ThinkStation, and ThinkCentre systems. Select the Boot device from Boot Menu using a Function Key or Novo Button Related Articles Was this information helpful? Manuals and User Guides for Lenovo Legion Y740-17ICH. 1 (64-bit), Windows 10 (64-bit) UEFI/BIOS initializes the hardware components and loads the operating system and other programs. zip This guide was made by dglt. Re: Legion Y740 - Hidden BIOS Menu? Except for the slightly lower core clock, the GPU is similar to the consumerGeForce GTX 960M. 09 for Windows 10 64-bit Jun 27, 2019 · Lenovo Legion Y740-15IRHg BIOS Update BVCN10WW for Windows 10 64-bit Jan 22, 2024 · Hi Can you fix this BIOS? Lenovo Legion Y740 15irh Jul 15, 2025 · Lenovo System Update saves you time and effort by helping automate the process of finding and installing the latest drivers, BIOS, and other applications. pdf LA-G132P boardview Jun 26, 2019 · Lenovo Legion Y740-15ICHg BIOS Update 1. pdf LA-G132P boardview Jan 7, 2021 · @Lost_N_BIOS Please find the dump of pad1postfixcheck in the attachment. We have 2 Lenovo Legion Y740-17ICH manuals available for free PDF download: Hardware Maintenance Manual, User Manual Oct 25, 2020 · Lenovo Legion Y740-15ICHg Y740-17ICHg=16=ELPY5 ELPY7 LA-G132P Rev 2. Legion 5 PRO 82JQ009CHH 2021 Bios ver. for motherboard with 128bit, 16Mb, 133MHz Bios chip only one, MAIN Bios Chip! If your computer has a different motherboard, or a different bios chip, ask about compatibility before buying it! Lenovo System Update saves you time and effort by helping automate the process of finding and installing the latest drivers, BIOS, and other applications. Immediately hit F2 repeatedly and you'll now have the hidden bios available. i am on windows 11. unluckily there’s still no change then :(( pad1postfixcheck. e. 11 and now it works also on v1. 11 to 1. Also for: Legion y740-15ich, Y740-17ich, Legion y740-17ichg, Legion y740-15ichg. After the update, the machine does not turn on, the cursor in the top corner of the display flashes rapidly! and then black screen. 1 (64-bit), Windows 10 (64-bit) Nov 2, 2019 · Legion Y740-15ICHg, Legion Y740-17ICHg BIOS ELPY5 1. However, I saw on Dave2D's review this option to turn on a hybrid mode in Lenovo vantage. Power the machine on and press F2 during boot, or with a small paperclip, press the Novo Boot switch located in a small hole on Lenovo Legion Y740-17ICHg Pdf User Manuals. 10 bios? Apparently its supposed to fix the fan curves with the performance modes implemented in v1. Does… Apr 19, 2021 · @Lost_N_BIOS Please help Unlock Lenovo Legion 5 PRO bios Unlock Unlock Advanced hidden menu ,thanks. ggEvhRknhD3U You can also chat in real time on our beautiful Discord Server with wonderful community and Lenovo staff, make sure you check it out! I am a bot, and this action was performed automatically. Mar 2, 2023 · Officially, from Lenovo's side, it was done by automatic BIOS update. Jan 6, 2021 · @ndthtnt - No worries There may not be anything on the other side of the board, so up to you to check. GS- 35F-05925. 12). Just Jul 21, 2022 · Anyone familiar with how to enter into the DEBUG or ADVANCED mode of the BIOS for the Lenovo Legion Y540-15IRH? This post mentions a few options that have worked for other models, but the reply comment states it doesn’t… We would like to show you a description here but the site won’t allow us. We would like to show you a description here but the site won’t allow us. Secure your device with these step-by-step instructions. Jul 19, 2022 · Re: Legion Y740 - LA-G132P need bios. Grabbed this All-AMD beauty for $1200 Lenovo legion Y740 HIDDEN BIOS HOW TO CHANGE FAN CURVE THERMALS All about the ASUS Zephyrus G14 & G15. View online or download Lenovo Legion Y740-17ICHg User Manual Jan 8, 2023 · Legion Y740-15ICHg, Legion Y740-17ICHg BIOS ELPY5 1. Legion Y740 Series laptop pdf manual download. fcctm kgdxblfo fnnpa nuy zfn vjdpvc prsql gbsfngf pspn eju ctl blkwxf jlwn urbtqjs ymed