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  1. Chip ID Steam Deck, Lato 1: passo 1, immagine 1 di 2 Chip ID Steam Deck, Lato 1: passo 1, immagine 2 di 2
    • Identificazione CI, Pt. 1:

    • Processore Applicativo AMD/Valve 100-000000405 Quad-Core con GPU

    • Memoria SDRAM Micron MT62F1G32D4DR-031 WT:B da 4 GB LPDDR5

    • Memoria Seriale NOR FLASH Winbond W25Q128JW da 16 MB

    • Ricevitore DisplayPort a MIPI Singolo Analogix ANX7580

    • Amplificatore Audio Cirrus Logic CS35L41B

    • Carica Batterie Li-Ion USB Tipo-C Maxim Integrated MAX77961

    • Driver Retroilluminazione LED O2Micro OZ536

    Can i buy a part? Part name is Analogix ANX7580 DisplayPort to Single MIPI Receiver

    MUHAMMAD FIKRI HAIKAL - Replica

  2. Chip ID Steam Deck: passo 2, immagine 1 di 1
    • Identificazione CI, Pt. 2:

    • Controller Digitale a 6 Fasi Monolithic Power Systems MP2845

    • Sistema Alimentazione Monolitico MP86902B con Stadio di Potenza di 35A

    • Stadio di potenza Monolithic Power Systems MP86902B da 35 A

    • Probabilmente Convertitore Buck Sincrono Monolithic Power Systems NB688C

    • Convertitore Buck Sincrono Monolithic Power Systems NB691

    • Convertitore Buck Sincrono Monolithic Power Systems NB690G

    • Probabilmente Convertitore Buck Sincrono Monolithic Power Systems NB591

  3. Chip ID Steam Deck, Lato 2: passo 3, immagine 1 di 2 Chip ID Steam Deck, Lato 2: passo 3, immagine 2 di 2
    • Identificazione CI:

    • Controller Embedded ITE Tech IT5570VG (probabilmente)

    • Controller Lettore Card O2Micro OZ711

    • Controller Erogazione Potenza USB Tipo-C & USB Maxim Integrated MAX77958

    • Convertitore Buck Sincrono Monolithic Power Systems NB691

    • Probabilmente Convertitore Buck Sincrono Monolithic Power Systems NB591

    • Switch Analogico SPDT USB 2.0 Diodes Incorporated PI3USB102

    • Interruttore di carico Texas Instruments TPS22976

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23 Commenti

Interesting how Valve went with a full-custom APU from AMD. I thought they’d use an off-the-shelf chip like the 4500U.

Ethan Zuo - Replica

Yeah i know what you mean!

They most likely they where wanting it to not be that thick,

so not like a laptop or desktop CPU for it,

Due to it being kinda thick!

Ben Capehart -

I assume the only major difference between this and an off the shelf APU is that this APU just has everything the steam deck does not utilize disabled or removed for power consumption reasons. I doubt it goes much deeper than that.

Alyx -

Good Point

See what you mean

Ben Capehart -

The 4500u has 6 EC Vega GPU, while the Steameck APU has an 8 ECU RDNA 2 GPU. Plus the custom APU gives them more control than a OTS apu.

MJ26 Gaming -

I doubt it goes much deeper than that

There are actually some differences, it has many differences than typical off-the-shelf APUs, now I don't know how much is firmware and how much is actually silicon but they had a section with AMD engineers that go into detail, some of my takeaways is that inbetween cycles, if it's done doing what it was it goes into a very low power mode, and the other one being that they really went for consistency and not turbo clocks and stuff

Scribble -

On step 3 there are 3 chips marked with dark blue which should be a USB switch, they look like they might be the TPS2276 load switch. The package does not match with the package from the USB switch datasheet in any case.

CazH - Replica

There’s not much to disable.

And it’s probably not custom APU for them, but something that Dell haven;t bought.

They needed to go to this strange mix of zen2+radeon6xxx mix, because only zen2 was low-power then and starting from radeon 6xxxx it provides RayTracing and is more energy efficient then older chips.

Mobile zen3 wasn’t released then. Now they would go this route.

Krzysztof Krakowiak - Replica

Microsoft, not Dell. Rumour has it that this was a part originally designed for an MS mobile device that the pandemic killed off: hence the presence of a machine vision IP block on the die that the Deck doesn't use and is most unlikely ever to.

Nick Alcock -

what about USB C port repair. doesnt seem like a simple thing . specially if ud end up replacing the whole board.

iWantOneToo - Replica

Hmm idk,

I bet its on the logic board

Ben Capehart -

Не вижу проблемы поменять порт usb C. Сплав Розе вам для скорости

FixMan -

any way to replace the wifi card? (If that isnt embedded into the APU or motherboard somehow)

Scribble - Replica

It's replaceable, :D

On the lower right side of the "side 1"

Is the WI-FI card port

Ben Capehart - Replica

When will I be able to buy the motherboard?

Jing - Replica

Yes, ifixit has them.

Ben Capehart -

I'd like to know what the USB controller for this thing is. The PD controller is labeled, and it seems there's a USB 2.0 de/multiplexor in there that's labeled. But...nothing USB 3? Does the USB C signal just go straight to the APU or something??

Matthew Fisher - Replica

Hmm.

that's a possibility!

I have No Idea

Ben Capehart -

Where I can buy the Maxim Integrated MAX77961 charger USB C?

Joel Davila - Replica

Guys, anyone khow what kind of ssd controller SD have. I heard that if u connect SSD with >1.6 A. Your SD SSD controller burnt. Any info. THX

Andii Kuziaiev - Replica

Does anyone know where can I buy a MAX77961 IC?

cakone micke - Replica

This is awesome thank you so much. I’m having a black screen issue. I thought it was the screen and got a new one but it still doesn’t work. I checked for shorts around “O2Micro OZ536 Backlight LED Driver” and didn’t see anything abnormal. Any tips?

Mike L - Replica

The OLED version has a Nuvoton NAU88L21YG audio codec chip on the motherboard. No codec chip is present in this publication for the LCD model but looking at the x-ray images, it seems the chip is actually on the headphone board for the LCD model. They also missed some other chips from other boards.

Mike - Replica

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