Compaq Presario R3000, HP Pavilion zv5000, HP Compaq nx9105: 90nm CPU Support

[DeathBringer]

However now I'm afraid to flash an other modded bios to get a cpu upgrade. I don't want risk to brick it again

Yes, you are right.
Try to find any 90nm CPU with CPUID=010FC0, stepping DH8-D0 (Palermo, Georgetown, Sonora, Oakville).

[IrRaziel]

Hello. I bought a 90nm AMD Sempron Sonora 3000+ stepping D0 with 25W TDP and CPUID=010FC0
Code SMS3000BOX2LB

Computer starts and enter the bios. But... but, after the post the system halts with the error "Warning! This motherboard does not support 82W CPU!"

Original CPU has tdp 62w. Now this Sempron has 25w. It is not recognised?
This is very frustrating

[DeathBringer]

Show a photo of the screen with error "Warning! This motherboard does not support 82W CPU!".

[IrRaziel]

Here, cpu photo with code, boot screen, bios screen and error screen. Then system is stuck, any operating system can't start (as with error 104 of unsupported wireless, for example)

82W cpu are only the Athlon64 mobile, the fastest cpu that this system can support. Standard cpu for this system is 62w

There are also other Compaq Presario R3000 with an 82W Athlon64. Obviusoly with same bios (F.35).
There are 2 motherboards for this system, compal_la-2392 (for 82w cpu) and the cheaper compal_la-2391 (mine).
LA-2392 has two fans, while mine has only one, for example

So I think, can it an hardware check or limit?

My cpu is 25W but it's clear that motherbord don't know that exists this kind of cpu. It recognise only 62w and 82w cpus. If I put a non-62w cpu it says automatically that it's 82w because it knows only this two

[DeathBringer]

It seems that CPU isn't recognized by BIOS.
Its name is wrong too.

[IrRaziel]

Yes, I saw it, it's name AMD Sempron XP (this cpu model doesn't exist)

It has cpuid 010FC0

So, what can I do? Anything?
Is it possible to bypass that wrong error?

[DeathBringer]

I can't help in this case.

[IrRaziel]

I think it seems an hardware check on the motherboard.

And I say it beacause I take the bios chip from an HP zv5200 (you can see it in the bios screen infact) from a motherboard LA-2392 that has 2 fans and supports 82w cpu.

So it's evident that isn't a bios limitation
In your opinion can you confirm it?

So I will try to resolve this problem in that way (and of course I will post here the solution)

[DeathBringer]

I think the problem is not wrong TDP, but old version of CPU recognition module in BIOS.
Your new CPU has "new" LBBID stepping.
Try to find different 90nm CPU with CPUID=010FC0 and other stepping (CBBFD or CBBHD)

[IrRaziel]

Ok, thank you.
I will try to find this hardware check or limit on motherboard.
Otherwise I will try an other cpu