PVE 下使用i2ctools显示DIMM温度 内存温度（未成功）
2024-06-27 09:16:30
首先安装pvetools，并且完成j选项的安装
安装完后运行sensors，回车后我这边是这样的
root@m93q:~# sensors
it8792-isa-0a40
Adapter: ISA adapter
in0: +0.38 V (min = +0.03 V, max = +1.53 V)
in1: +2.09 V (min = +2.66 V, max = +0.21 V) ALARM
in2: +0.04 V (min = +1.13 V, max = +2.15 V) ALARM
in3: +0.98 V (min = +0.24 V, max = +2.20 V)
in4: +1.64 V (min = +2.50 V, max = +0.50 V) ALARM
in5: +2.51 V (min = +1.98 V, max = +0.08 V) ALARM
in6: +2.78 V (min = +2.00 V, max = +0.11 V) ALARM
3VSB: +1.62 V (min = +0.02 V, max = +1.08 V) ALARM
Vbat: +1.65 V
fan1: 2463 RPM (min = 23 RPM)
fan2: 0 RPM (min = -1 RPM)
fan3: 0 RPM (min = -1 RPM)
temp1: +50.0°C (low = +108.0°C, high = -112.0°C) ALARM sensor = thermal diode
temp2: +2.0°C (low = -116.0°C, high = +58.0°C) sensor = disabled
temp3: +42.0°C (low = +7.0°C, high = -40.0°C) ALARM sensor = thermal diode
intrusion0: ALARMacpitz-acpi-0
Adapter: ACPI interface
temp1: +27.8°C (crit = +90.0°C)
temp2: +29.8°C (crit = +90.0°C)coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +50.0°C (high = +79.0°C, crit = +85.0°C)
Core 0: +46.0°C (high = +79.0°C, crit = +85.0°C)
Core 1: +49.0°C (high = +79.0°C, crit = +85.0°C)
里面的内容有点问题，也有人显示不全，我们先不管。
接着我们安装i2ctools
apt install i2c-tools
安装完毕后需要载入i2c-dev内核模块
root@m93q:~# modprobe i2c_dev我这边运行后并没有输出
紧接着我们运行 i2cdetect -l，如果有smbus输出即代表可以继续下一步
需要以root用户运行，下面是我的情况
root@m93q:~/# i2cdetect -l
i2c-3 i2c i915 gmbus panel I2C adapter
i2c-1 i2c i915 gmbus ssc I2C adapter
i2c-8 i2c AUX C/DDI C/PHY C I2C adapter
i2c-6 i2c i915 gmbus dpd I2C adapter
i2c-4 i2c i915 gmbus dpc I2C adapter
i2c-2 i2c i915 gmbus vga I2C adapter
i2c-0 smbus SMBus I801 adapter at 0580 SMBus adapter
i2c-7 i2c AUX B/DDI B/PHY B I2C adapter
i2c-5 i2c i915 gmbus dpb I2C adapter
接着我们运行i2cdetect -y 0
一般来说i2c-0即为内存，所以上面命令-y后面是0，如果是别的自行替换数字编号即可
以下是我的情况
root@m93q:~/pvetools# i2cdetect -y 00 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- 08 -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- --
50: UU -- -- -- 54 55 56 57 -- -- -- -- 5c 5d 5e 5f
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- -- 根据教程如果有两根内存条，应该在0x18和0x19。如下，正好就是18和19两个数字的位置
而内存的SPD信息在0x50
# i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- 0c -- -- --
10: 10 -- -- -- -- -- -- -- 18 19 -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- 36 -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4f
50: 50 51 -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- 77但我运行后0x18或者0x19并没有数据。而且0x50显示为UU，代表着被驱动占用
想要知道地址在哪，可能只能用拔插法了，也有可能我这根三星的ddr3内存并不支持。
但是我不想拆开我的m93p,内存位置在硬盘的下面。
我最后用i2cdump 猜了一下应该是0x44或者是0x57 因为除了0x50其他地址的内容全是X
比如0x08如下
root@m93q:~# i2cdump -f -y 0 0x08
No size specified (using byte-data access)0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
50: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
60: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
70: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
80: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
90: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
a0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
b0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
c0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
d0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
e0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
f0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX同时内存温度是在不断变化的 而0x57却是一直不变的，如下
root@m93q:~# i2cdump -f -y 0 0x57
No size specified (using byte-data access)0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
10: 00 00 00 00 00 00 00 00 ff ff ff ff ff ff ff ff ................
20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff dd 8b ..............??
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
0x44是在变的
第一次
root@m93q:~# i2cdump -f -y 0 0x44
No size specified (using byte-data access)0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 00 04 00 00 00 00 00 29 49 09 07 19 08 22 ...?.....)I????"
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
第二次
root@m93q:~# i2cdump -f -y 0 0x44
No size specified (using byte-data access)0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 00 04 00 00 00 00 00 27 49 09 07 19 08 22 ...?.....'I????"
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
所以我有理由相信是0x44
于是把原教程的0x18和0x19换成的0x44，运行如下代码
echo jc42 0x44 > /sys/bus/i2c/devices/i2c-0/new_device
再执行
sensorsroot@m93q:~# sensors
jc42-i2c-0-57
Adapter: SMBus I801 adapter at 0580
temp1: +0.0°C (low = +0.0°C)(high = +0.0°C, hyst = +0.0°C)(crit = +0.0°C, hyst = +0.0°C)it8792-isa-0a40
Adapter: ISA adapter
in0: +0.40 V (min = +0.03 V, max = +1.53 V)
in1: +2.10 V (min = +2.66 V, max = +0.21 V) ALARM
in2: +0.04 V (min = +1.13 V, max = +2.15 V) ALARM
in3: +0.98 V (min = +0.24 V, max = +2.20 V)
in4: +1.62 V (min = +2.50 V, max = +0.50 V) ALARM
in5: +2.50 V (min = +1.98 V, max = +0.08 V) ALARM
in6: +2.78 V (min = +2.00 V, max = +0.11 V) ALARM
3VSB: +1.62 V (min = +0.02 V, max = +1.08 V) ALARM
Vbat: +1.65 V
fan1: 2586 RPM (min = 23 RPM)
fan2: 0 RPM (min = -1 RPM)
fan3: 0 RPM (min = -1 RPM)
temp1: +50.0°C (low = +108.0°C, high = -112.0°C) ALARM sensor = thermal diode
temp2: +2.0°C (low = -116.0°C, high = +58.0°C) sensor = disabled
temp3: +43.0°C (low = +7.0°C, high = -40.0°C) ALARM sensor = thermal diode
intrusion0: ALARMacpitz-acpi-0
Adapter: ACPI interface
temp1: +27.8°C (crit = +90.0°C)
temp2: +29.8°C (crit = +90.0°C)jc42-i2c-0-44
Adapter: SMBus I801 adapter at 0580
temp1: +15.9°C (low = +79.9°C)(high = +15.9°C, hyst = +15.9°C)(crit = +15.9°C, hyst = +15.9°C)coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +49.0°C (high = +79.0°C, crit = +85.0°C)
Core 0: +47.0°C (high = +79.0°C, crit = +85.0°C)
Core 1: +49.0°C (high = +79.0°C, crit = +85.0°C)下面的jc42-i2c-0-44就是导入的项目，但是很奇怪温度并没有改变，现在不知道该怎么办了
如果不想显示这个的话卸载模块即可
modprobe jc42 -r教程参考：lm_sensors - ArchWiki (archlinux.org)
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