05-04-2025, 06:53 PM
(This post was last modified: 05-04-2025, 07:38 PM by Dendrocalamus64.)
(05-04-2025, 04:51 PM)Der Geist der Maschine Wrote: My understanding is that eMMC sockets are not standarized. I noticed Hardkernel offers multiple eMMCs. How do I know which one fit into the Pinebook Pro? Are there also other manufacturers?
I didn't find any other integrators. Kingston makes the actual emmc and Hardkernel puts it on a board.
https://www.hardkernel.com/?s=256gb&post...ct&lang=en
I think these are all the same socket, which is an unoffical standard, just pre-flashed with different OSes for different devices.
Quote:You need USB3.0 eMMC Module Writer 2 : Works with ODROID Orange, Red and Blue eMMC modules
(It is not compatible with the Black eMMC Modules)
I got the orange dot version, with no OS preinstalled, and it fit.
Their wiki article reveals that "orange, red, blue, black" refers to the PCB color, not the color of the marker on the chip.
https://wiki.odroid.com/accessory/emmc/reference_chart
So all the ones currently listed in the shop are the same PCB version with the same connector. Specifically I got the orange PCB (v0.5) with the orange dot (no OS). There is no orange dot on the actual chip.
Quote:eMMC connector specification
The connector is made by LS-Mtron Korea.
On the eMMC module, we've used the GB042-34S-H10 (Socket-34pin).
On the host board, we've used the GB042-34P-H10 (Plug-34pin).
The connector specification is here
eMMC connector reliability
The manufacturer says their guaranteed durability of the connector is 30 Cycle of inserting and separating actions.
We need to be careful we don't hit that, it's lower than expected.
Quote:That Pine-branded eMMC is expected to support writing 88TB. Maybe it's all more complicated, but that tells me that it should degenerate by 10% every 8.8TB writes. Your eMMC is there already after 1.4TB. Good luck.
After four years of usage. I'll replace it due to obsolescence, i.e. storage requirements increasing and larger modules becoming available, long before it fails (in another 36 years?)
I've seen people on other forums running at 0x0b (110% used up) with no actual effects. I don't think the life time estimation works very well.
and [edit] again:
Most of the storage is configured as MLC - multilevel cell eraseblocks. So the type B life estimation is the one we should be looking at. 0x01 indicates 0 - 10%. So after 1.4 TB, it is still somewhere within 0 - 10% device life time used, which is even within spec.