Introduce ROCK 5B - ARM Desktop level SBC

[stuartiannaylor]

12V at the I/O instead

That solves the majority of my thoughts as I am thinking a constant decent amperage 12v bus is likely going to be a ‘thing’.
I guess it could be the reverse and a hat that provides 5v to the GPIO but 12V at the I/O instead for me is preferable, but guess its dependent on the utilised type-c connector as how much connector dictates volts/amps.

I think with the Pi4 its use the Pi USB C PSU as its 3.0 amp and a great price as some rave about how great it is for low cost.

I think @tkaiser once said it was raspberries best product and he his a pretty good reviewer of product.

[Dante4]

I wouldn’t need a sata hat

Erm, and why so? You still need HAT to convert PCIe to SATA. Just to remind you. Motherboard doesn’t not supply 12v to disks. Also to remind you, NVMe and SSD doesn’t require 12v.

was about price

And my example is that you don’t need 100V. And you can have enough with any QC3.0 phone adapter.

Also as the Arm board progress with the PCIe that 12v might also be used for other peripherals as well such as GPU’s…

No it can not. GPU requires much more than 100W. Also it’s totally can’t be used with RK chip because of architectures.

[stuartiannaylor]

You still need HAT to convert PCIe to SATA

No I don’t.

5 Ports M.2 B-Key Sata to SATA 3 6G SSD Adapter for Computer Laptop | eBay

GPU requires much more than 100W

There are many GPUs that still run on ATX PCIe 75watt (GTX 1650) and likely will always be and much work has been done with resizable BAR on ARM that GPUs on ARM might very much become a thing.

[Dante4]

No I don’t.

Really? And where is power sata here? Ah yes. There is none. And you still need to additional cables and external power to get it.

[stuartiannaylor]

That is exactly why we are talking about 12v! Doh!

[Dante4]

You or totally missing point or refuse to see it. You. CAN’T. get. power sata. from. MOTHERBOARD.

[Dante4]

There are many GPUs that still run on ATX PCIe 75watt (GTX 1650)

Being a dual-slot card, the NVIDIA GeForce GTX 1650 SUPER draws power from 1x 6-pin power connector, with power draw rated at 100 W maximum.

And board i guess need to power up from air in this case

[stuartiannaylor]

Lols, bless. I think you may find it could be you missing a point and why some of us are making a point for a permanent 12v rail.

[stuartiannaylor]

NVIDIA GeForce GTX 1650 Specs

TDP 75 W

Power Connectors None

Same with GTX 1050 / TI and many others because standard PCIe on a ATX mobo is 75watt without need for external power and has been always.

[Dante4]

TDP 75 W

TDP is how much power it’s output in terms of thermal. That have connection to how much it MAY requires. But that’s not maximum

[stuartiannaylor]

Read it power connectors none the rest is to power a x86 cpu and all the peripherals a mobo might contain and yeah that could be 250watt and thats a guesstimate for a PC PSU and nothing to do solely with the gpu.

TDP stands for Thermal Design Power, in watts, and refers to the power consumption under the maximum theoretical load

What does it say?

[Dante4]

making a point for a permanent 12v rail.

Because you stuck in old age and refuse to use modern technology? Your point of cost is invalid, since you don’t need 100W in Rock5 case (or any other SBC out there). Your point about this

many are 2.0 and 1.0

is bullshit. 10 years ago - maybe. Now? You are kidding me. Your point about power length or

dedicated SBC PSU

go and buy ATX powersupply and micro-ITX board with Pentium. As for length. Yeah. Totally no. PD takes that thing in account.

[Dante4]

to power a x86 cpu and all the peripherals a mobo might contain

Surprise, surprise ARM board also requires power.

[stuartiannaylor]

Yeah strange isn’t it as with 25 watt it would sort of be perfect…

[Dante4]

Read this post. I guess you didn’t

Introduce ROCK 5 Model B - ARM Desktop level SBC

for PD, I do buy quite a few power supply before Basically for PD, you can expect up to 5A PD 1 is kinda “non-existence”, or I would have bought one too… I want PD running on USB-A socket for PD 2, it should have negotiable voltage at 5V, 9V, 12V, 15V and 20V, and it is the most common PD protocol version I think. again, “normally” you can use a unmarked “straight” USB-C cable and that would support up to 3A (also depends on cable quality), while I do see US…

[Dante4]

What does it say?

That Real Life is different

https://www.techpowerup.com/review/asus-geforce-gtx-1650-strix-oc/30.html#:~:text=Gaming%20power%20consumption%20is%20extremely,to%20run%20the%20GTX%201650.

[stuartiannaylor]

Yes The Strix OC ones do but as a design the 1650 and such cards are aimed at 75 watt as that is what standard native PCIe will supply and as said likely will always be a supply of new and used cards avail at that level as there is and that is also reality.

[Dante4]

but as a design the 1650 and such cards are aimed at 75 watt

Then you just need to find this card in magazine and also tests that does indeed confirm that it’s never goes more than 75w. So, when you find one - just don’t forget, that RK3568 doesn’t have enough juice to actually use it. Also read about PCI address spaces

[Sirimore]

Music to my ears! I will wait anxiously for this on the Batocera site.

[sj8f]

https://youtu.be/N4O5PqjeFN4 - dc to usb-c converter