New Fan Control DSDT - for silent fan at higher temps!

[skinheadFX]

Can I control my GPU fan speeds?

 

[RehabMan]

Can I control my GPU fan speeds?

I don't think the ProBook has a separate GPU fan.

 

[rodionzissou]

Reporting back:

Booting from HDD, fan works exactly as advertised in the quiet fan patch. You rock dude!

 

[RehabMan]

Reporting back:

Booting from HDD, fan works exactly as advertised in the quiet fan patch. You rock dude!

Glad we have that figured out...

 

[robi62]

Im getting a bit confused from first post seemed easy to change to make fan kick in at higher temps

but when I look to edit section the numbers do not appear the same

They appear like this on my dsdt for my hp 4430s

Name (FTAB, Buffer (0x0E)
{
/* 0000 */ 0x32, 0xFF, 0x39, 0x80, 0x3F, 0x52, 0x44, 0x4A,
/* 0008 */ 0x48, 0x3B, 0x4B, 0x31, 0xFF, 0x00


So I don't know what to do........

 

[robi62]

I understand why could not find this

// Fan Control Table (pairs of temp, fan control byte)\n
Name (FTAB, Buffer ()\n
{\n
50, 255, // 255 is off (really auto, but at low temp it is off)\n
55, 128, // 128 is slowest speed\n
60, 82,\n
65, 74,\n
70, 59,\n
75, 49,\n
0xFF, 0 // last entry must be 0xFF, 0 is max fan speed\n
})\n
that was first fan patch

now it shows like
Name (FTAB, Buffer (0x0E)
{
/* 0000 */ 0x32, 0xFF, 0x39, 0x80, 0x3F, 0x52, 0x44, 0x4A,
/* 0008 */ 0x48, 0x3B, 0x4B, 0x31, 0xFF, 0x00
})

So i don't know what to edit..........

 

[RehabMan]

I understand why could not find this

// Fan Control Table (pairs of temp, fan control byte)\n
	Name (FTAB, Buffer ()\n
	{\n
		50, 255, 	// 255 is off (really auto, but at low temp it is off)\n
		55, 128, 	// 128 is slowest speed\n
		60, 82,\n
		65, 74,\n
		70, 59,\n
		75, 49,\n
		0xFF, 0 	// last entry must be 0xFF, 0 is max fan speed\n
	})\n

that was first fan patch

now it shows like

 Name (FTAB, Buffer (0x0E)
        {
            /* 0000 */   0x32, 0xFF, 0x39, 0x80, 0x3F, 0x52, 0x44, 0x4A,
            /* 0008 */   0x48, 0x3B, 0x4B, 0x31, 0xFF, 0x00
        })

So i don't know what to edit..........

Compiling then decompiling converts the numbers to hex and removes comments/newlines, etc:

0x32 = 16*3+2 = 50
0xFF = 16*15+15 = 255
0x39 = 16*3+9 = 57
0x80 = 16*8+0 = 128

etc.

 

[robi62]

Hi gathered it was something like that to make things easy for me I just edit numbers on

file 04_FanExperimental.txt and then reapply patch to my dsdt and save new dsdt

Easier

 

[RehabMan]

Hi gathered it was something like that to make things easy for me I just edit numbers on

file 04_FanExperimental.txt and then reapply patch to my dsdt and save new dsdt

Easier

Yes.

 

[Don_Grappler]

...it is very lazy about changing the fan speed... this is in order to reduce the occurance of changes in fan speed...

Are there technical reasons for this lazyness? I imagine some users might be, even subconscously, annoyed by frequent changes in environment noise, but from a purely technical pov?