[GH-ISSUE #845] Request for N550RN #737

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opened 2026-02-26 00:33:27 +03:00 by kerem · 2 comments

kerem commented

2026-02-26 00:33:27 +03:00

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Originally created by @Cerlancism on GitHub (Mar 23, 2020).
Original GitHub issue: https://github.com/hirschmann/nbfc/issues/845

I want wish to have a config for this custom notebook.

I found the technical specs online.
http://s472165864.onlinehome.fr/anyware/manuels/N550RN_ESM.pdf

DSDT does not give me much meaningful results.

OperationRegion(EC81, EmbeddedControl, Zero, 0xFF)
Field(EC81, ByteAcc, Lock, Preserve)
{
	Offset(0xF8),	//Offset(248),
	FCMD, 8,
	FDAT, 8,
	FBUF, 8,
	FBF1, 8,
	FBF2, 8,
	FBF3, 8,
}

This is from a related EC model datasheet, hopefully it is the same as the ITE 8587E in my notebook.
https://pdf1.alldatasheet.com/datasheet-pdf/view/1132027/ITE/IT8512E.html
From here it says the register range starts at 1800h? But the config editor only allows me to enter from 0 to 255.

This is what RWEverything shows

I could only find out with some observations and online search that D0D1 D2D3 are related CPU GPU fans speeds in which rpm = (32768 * 60) / N_ticks where N_ticks is the 16 bit values of D0D1 or D2D3

Any advice?

Originally created by @Cerlancism on GitHub (Mar 23, 2020). Original GitHub issue: https://github.com/hirschmann/nbfc/issues/845 I want wish to have a config for this custom notebook. I found the technical specs online. http://s472165864.onlinehome.fr/anyware/manuels/N550RN_ESM.pdf DSDT does not give me much meaningful results. ```ASL OperationRegion(EC81, EmbeddedControl, Zero, 0xFF) Field(EC81, ByteAcc, Lock, Preserve) { Offset(0xF8), //Offset(248), FCMD, 8, FDAT, 8, FBUF, 8, FBF1, 8, FBF2, 8, FBF3, 8, } ``` This is from a related EC model datasheet, hopefully it is the same as the ITE 8587E in my notebook. https://pdf1.alldatasheet.com/datasheet-pdf/view/1132027/ITE/IT8512E.html From here it says the register range starts at 1800h? But the config editor only allows me to enter from 0 to 255. ![image](https://user-images.githubusercontent.com/28769707/77338704-ac6a6600-6d65-11ea-9d5e-344ad94dfc8f.png) This is what RWEverything shows ![image](https://user-images.githubusercontent.com/28769707/77339380-9f9a4200-6d66-11ea-9a9f-32caabe5b462.png) I could only find out with some observations and online search that D0D1 D2D3 are related CPU GPU fans speeds in which `rpm = (32768 * 60) / N_ticks` where N_ticks is the 16 bit values of D0D1 or D2D3 Any advice?

kerem

2026-02-26 00:33:27 +03:00

closed this issue
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kerem commented

2026-02-26 00:33:28 +03:00

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@github-actions[bot] commented on GitHub (Sep 27, 2020):

This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed

@github-actions[bot] commented on GitHub (Sep 27, 2020): This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed

kerem commented

2026-02-26 00:33:28 +03:00

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Owner

@Cerlancism commented on GitHub (Sep 27, 2020):

Using https://github.com/zuyan9/RLECViewer and it works good.

@Cerlancism commented on GitHub (Sep 27, 2020): Using https://github.com/zuyan9/RLECViewer and it works good.