关于小米笔记本BIOS和硬盘限速的问题
先看看这个https://bbs.xiaomi.cn/t-13425672-1-o1
原来早在4月份就有了小米13.3的显卡降频问题,那我就不奇怪了。
怪不得小米笔记本pro会出现第一批笔记本的BIOS(INSYDE Corp. XMAKB5R0P0200, 2017/9/7)固态限速,pro自带的硬盘(三星pm961)把原本能跑4500(可以上网搜索三星pm961跑分)的固态硬是限速到了3000左右的分数(安装了三星的最新驱动),https://bbs.xiaomi.cn/t-13742863按这里所说官方说法是小米的设计数据是1.5g/s,然而小米在下一个版本的BIOS(INSYDE Corp. XMAKB5R0P0400, 2017/10/2)也就是双11的那一批pro取消了对于硬盘的阉割,自带固态终于可以跑出了正常的分数。然而官方并未放出相关的BIOS。然后https://bbs.xiaomi.cn/t-13969048中又出现了新版本的BIOS(INSYDE Corp. XMAKB5R0P0502, 2017/10/13),这一个版本限制了XTU中的电压调节选项,并且让上两个版本可以解开功耗墙达到44w稳定不降频的i5和i7版本的cpu在40w时就不断降频。
让小米发布会时所说的无锁变成了有锁,很幸运,小米暂时还没有放出这个版本的BIOS。
然而从第一批pro开卖时就有的关于风扇调节机制的反馈却始终没有任何回应,也没有在BIOS中做出改变。
所以说小米从小米笔记本13.3中学习到了,如果你对用户正面回应那么用户很有可能会指出你想隐瞒的问题。既然这样,那就很简单了。让用户自己在所谓的论坛中说去吧,前几批有问题的用户最终会失去耐心而放弃寻求说法。然后修改一下后就可以坑完老用户后继续卖给新用户了。
那么问题来了,小米笔记本pro下一版的BIOS会阉割什么呢?
88xx 发表于 2017-11-24 23:08:39风扇逻辑问题,想修复简单又简单,想必小米是被13.3的散热坑怕了吧,吵了总比铁板烧好,哈哈。只不过10月13的BIOS确实坑人了,实际测试,多核限频,双烤限TDP30,单烤TDP到40W就开始过热了,不知道小米想干嘛,要么是故意坑人,要么就是这批8550u体质不行,跑不动。
大神,我现在买到的就是10月13的bios(p0502),风扇过一段时间响一下,既然还是有锁的,是不是得考虑退货了?
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 发表于 2017-11-25 15:51:53我其实也挺小白的,当时看了一下BIOS解锁= =也尝试了提取BIOS但是没成功。而且之前也没有相关经验就没有继续折腾= =准系统吧里有解锁INSYDE BIOS的一些教程,你要是感兴趣的话去看一下?
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 发表于 2017-11-25 06:40:38
我其实也挺小白的,当时看了一下BIOS解锁= =也尝试了提取BIOS但是没成功。而且之前也没有相关经验就没有继续折腾= =
准系统吧里有解锁INSYDE BIOS的一些教程,你要是感兴趣的话去看一下?
Mi_843510132 发表于 2017-11-25 11:10:35我双11买的pro,bios版本是p0502,风扇没运行什么大型程序也会隔一段时间突然响一会儿,特别是插电源的时候。请问是bios版本原因吗?
风扇问题貌似一直都没有解决,只能期望官方可以在下个BIOS中修复并且放出来。
我双11买的pro,bios版本是p0502,风扇没运行什么大型程序也会隔一段时间突然响一会儿,特别是插电源的时候。请问是bios版本原因吗?
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.
风扇逻辑问题,想修复简单又简单,想必小米是被13.3的散热坑怕了吧,吵了总比铁板烧好,哈哈。只不过10月13的BIOS确实坑人了,实际测试,多核限频,双烤限TDP30,单烤TDP到40W就开始过热了,不知道小米想干嘛,要么是故意坑人,要么就是这批8550u体质不行,跑不动。
本来就是垃圾东西,何必在意那么多
研究的很透彻啊。
关于风扇的调节策略问题最后很有可能不了了之,相比起来之前gpu降频那么严重的问题都能一带而过,这种小问题怕不是要等到pro2才能解决
最后更新:2017-11-26 21:22:01