Quartz64 max PCIE power?
I would eventually (I realize the software stack isnt really there yet) like to replace my intel atom board in my home server with a Quartz64, however, I'm wondering power wise if it will be able to run my SAS adapter? How many W can I draw from the PCIe slot on the board, assuming I have "Unlimited" power on the input (will be running it all off a ATX PSU)
The 12V on the PCIe connector comes from the DC in socket, so however much your DC power supply is able to provide, minus whatever the rest of the system uses through the PMIC's DC-to-DC converters.

The 3.3V on the PCIe connector is DC-to-DC converted from the 12V input by an SY8113B, which can deliver 3A of current according to its data sheet.

So in short, 3A*3.3V = 9.9W on the 3.3V rail, and north of 50W on the 12V rail depending on how beefy your DC power supply is.

If your card only draws wattage from the 3.3V rail, you might get in trouble, but if it has its own DC-to-DC circuitry to convert the 12V input, you're all good.

Occasional Linux Kernel Contributor, Avid Wiki Updater, Ask Me About Quartz64
Open Hardware Quartz64 Model A TOSLink Adapter
Pi-bus GPIO Extender For ROCKPro64 And Quartz64 Model A
Plebian GNU/Linux

Possibly Related Threads…
Thread Author Replies Views Last Post
  can't get quartz64-A working jyoung 14 1,057 04-29-2023, 04:41 PM
Last Post: diederik
  Trustzone support for QUARTZ64 capablegh 13 3,684 04-28-2023, 01:58 AM
Last Post: NCLI
  Booting Quartz64 Model B Jojo120120 14 4,476 01-23-2023, 03:31 AM
Last Post: balbes150
  quartz64 model b 2x20 max power proj964 1 882 10-23-2022, 05:32 AM
Last Post: CounterPillow
  quartz64 model b 2x20 pin header proj964 1 746 10-23-2022, 05:21 AM
Last Post: CounterPillow
  JTAG/SWD on Quartz64 model A capablegh 4 3,434 10-03-2022, 03:16 PM
Last Post: fatalfeel
  The "Should I buy a Quartz64 right now?" flow chart CounterPillow 3 2,979 07-13-2022, 09:50 AM
Last Post: CounterPillow
  No boot...power light shows green 98cwitr 1 843 06-10-2022, 12:10 PM
Last Post: 98cwitr
  Has the Quartz64 Model B project been canceled? Silver 8 5,106 05-03-2022, 11:56 AM
Last Post: CounterPillow
  Quartz64 Model A & B benchmarks vs. RK3399 sbc's Silver 5 6,937 02-11-2022, 09:10 PM
Last Post: stuartiannaylor

Forum Jump:

Users browsing this thread: 1 Guest(s)