關於小米筆記本BIOS和硬盤限速的問題
先看看這個https://bbs.xiaomi.cn/t-13425672-1-o1
原來早在4月份就有了小米13.3的顯卡降頻問題,那我就不奇怪了。
怪不得小米筆記本pro會出現第一批筆記本的BIOS(INSYDE Corp. XMAKB5R0P0200, 2017/9/7)固態限速,pro自帶的硬盤(三星pm961)把原本能跑4500(可以上網搜索三星pm961跑分)的固態硬是限速到了3000左右的分數(安裝了三星的最新驅動),https://bbs.xiaomi.cn/t-13742863按這裏所說官方說法是小米的設計數據是1.5g/s,然而小米在下一個版本的BIOS(INSYDE Corp. XMAKB5R0P0400, 2017/10/2)也就是雙11的那一批pro取消了對於硬盤的閹割,自帶固態終於可以跑出了正常的分數。然而官方並未放出相關的BIOS。然後https://bbs.xiaomi.cn/t-13969048中又出現了新版本的BIOS(INSYDE Corp. XMAKB5R0P0502, 2017/10/13),這一個版本限製了XTU中的電壓調節選項,並且讓上兩個版本可以解開功耗牆達到44w穩定不降頻的i5和i7版本的cpu在40w時就不斷降頻。
讓小米發布會時所說的無鎖變成了有鎖,很幸運,小米暫時還沒有放出這個版本的BIOS。
然而從第一批pro開賣時就有的關於風扇調節機製的反饋卻始終沒有任何回應,也沒有在BIOS中做出改變。
所以說小米從小米筆記本13.3中學習到了,如果你對用戶正麵回應那麼用戶很有可能會指出你想隱瞞的問題。既然這樣,那就很簡單了。讓用戶自己在所謂的論壇中說去吧,前幾批有問題的用戶最終會失去耐心而放棄尋求說法。然後修改一下後就可以坑完老用戶後繼續賣給新用戶了。
那麼問題來了,小米筆記本pro下一版的BIOS會閹割什麼呢?
88xx 發表於 2017-11-24 23:08:39風扇邏輯問題,想修複簡單又簡單,想必小米是被13.3的散熱坑怕了吧,吵了總比鐵板燒好,哈哈。隻不過10月13的BIOS確實坑人了,實際測試,多核限頻,雙烤限TDP30,單烤TDP到40W就開始過熱了,不知道小米想幹嘛,要麼是故意坑人,要麼就是這批8550u體質不行,跑不動。
大神,我現在買到的就是10月13的bios(p0502),風扇過一段時間響一下,既然還是有鎖的,是不是得考慮退貨了?
My SSD report with latest samsung drivers:
-----------------------------------------------------------------------
CrystalDiskMark 5.5.0 x64 (C) 2007-2017 hiyohiyo
Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
Sequential Read (Q= 32,T= 1) : 1844.450 MB/s
Sequential Write (Q= 32,T= 1) : 1342.318 MB/s
Random Read 4KiB (Q= 32,T= 1) : 527.816 MB/s [128861.3 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 457.508 MB/s [111696.3 IOPS]
Sequential Read (T= 1) : 1020.975 MB/s
Sequential Write (T= 1) : 1258.613 MB/s
Random Read 4KiB (Q= 1,T= 1) : 46.426 MB/s [ 11334.5 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 175.768 MB/s [ 42912.1 IOPS]
Test : 1024 MiB [C: 37.0% (51.6/139.6 GiB)] (x5) [Interval=5 sec]
Date : 2017/11/26 13:34:04
OS : Windows 10 Professional [10.0 Build 16299] (x64)
Write speeds are not capped. Read speeds hit a wall.
fbhaqq 發表於 2017-11-25 15:51:53我其實也挺小白的,當時看了一下BIOS解鎖= =也嚐試了提取BIOS但是沒成功。而且之前也沒有相關經驗就沒有繼續折騰= =準係統吧裏有解鎖INSYDE BIOS的一些教程,你要是感興趣的話去看一下?
You can only extract certain portions of the SPI flash using the intel tools as per my post. You cannot extract the whole 8MB of the spi chip. Run these commands in an administrator command as you will get the little bits of the BIOS to open with UEFITool and read.
There are protected ranges in place which are enforced by BiosRegionProtect.dxe which keeps the configuration lockdown active. FLOCKDN = 1. Even with a modified BIOS deor you will not be able to unlock. There is no way around it without voiding your warranty so I will not recommend BIOS modification and disassembly.
There is possibly a problem with the Intel Management Engine due to fan profiles not being well set in there and the OPT GT speed being set to the slower one. If that is the case, a BIOS update with ME update and reconfiguration will be the way to go.
Mi_1757975919 發表於 2017-11-25 06:40:38
我其實也挺小白的,當時看了一下BIOS解鎖= =也嚐試了提取BIOS但是沒成功。而且之前也沒有相關經驗就沒有繼續折騰= =
準係統吧裏有解鎖INSYDE BIOS的一些教程,你要是感興趣的話去看一下?
Mi_843510132 發表於 2017-11-25 11:10:35我雙11買的pro,bios版本是p0502,風扇沒運行什麼大型程序也會隔一段時間突然響一會兒,特別是插電源的時候。請問是bios版本原因嗎?
風扇問題貌似一直都沒有解決,隻能期望官方可以在下個BIOS中修複並且放出來。
我雙11買的pro,bios版本是p0502,風扇沒運行什麼大型程序也會隔一段時間突然響一會兒,特別是插電源的時候。請問是bios版本原因嗎?
Download tools here to extract bios. Then we can compare.
https://www.mediafire.com/file/3917p388fpi9mxj/Intel+CSTXE+System+Tools+v3+r4.rar
Flash Programming Tool / WIN
Open Administrator CMD:
fptw -d bios.bin -bios
https://www.win-raid.com/t624f39-Intel-Trusted-Execution-Engine-Drivers-Firmware-amp-System-Tools.html
A full bios dump minus PDR can be done if you follow the following steps:
fptw -d desc.bin -desc
fptw -d bios.bin -bios
fptw -d me.bin -me
@88xx, please upload for the 2 different versions. Mine is the original version.
Possibly in a few months if Xiaomi (小米) is not releasing the package we can figure out how to update the software using tools at our disposal such as CH341 flash programmer.
Also search for Insyde H2OUVE and do the following to get the BIOS Setup:
H2OUVE -gv vars.txt
The difference between the different variables should also help us figure out how to implement a configuration tool outside the BIOS or even create a bios to flash. Also disable secure boot and clear keys before doing any of the above.
風扇邏輯問題,想修複簡單又簡單,想必小米是被13.3的散熱坑怕了吧,吵了總比鐵板燒好,哈哈。隻不過10月13的BIOS確實坑人了,實際測試,多核限頻,雙烤限TDP30,單烤TDP到40W就開始過熱了,不知道小米想幹嘛,要麼是故意坑人,要麼就是這批8550u體質不行,跑不動。
本來就是垃圾東西,何必在意那麼多
研究的很透徹啊。
關於風扇的調節策略問題最後很有可能不了了之,相比起來之前gpu降頻那麼嚴重的問題都能一帶而過,這種小問題怕不是要等到pro2才能解決
最後更新:2017-11-26 21:22:01