k-pi wrote: ↑
Thu Sep 13, 2018 8:20 am
I, personally, haven't been able to get any of my RPi3B to boot from a HDD or SSD drive from just the power from the USB ports, they need their own power supply - it does boot OK from pendrives &/or SD/SDHC cards in an adapter.
Odd that you have this trouble, especially with SSD?
What do you use as a power supply for your Pi3B?
If your Pi3B is working well for you, and you are on a budget, I would say it's probably not worth it. Unless you can find a specific reason or use case... do you need 5GHz WiFi, or faster Ethernet?
The 2.5A @ 5V power recommendation for the Pi3 models includes 1.2A for the USB ports. If you don't use power hungry USB devices a 2A power supply should be fine. The Pi3B+ does consume more power, but it would still need something drawing power from USB (or GPIO) to get over 2A.
I have both Pi3B and Pi3B+ computers and don't feel much performance difference between them. Network speed is certainly better, and it's harder to heat up the 3B+ to throttling speeds, but I have my systems well cooled, so heat isn't an issue for me, and I don't do much web browsing on the Pi (I find them too slow to use as general purpose computers).
I upgraded my Creeper Pie Minecraft SMP server from a 3B to a 3B+ for the additional performance, but the difference I feel is subtle enough that I can't honestly say it isn't placebo effect. It does feel like there is less server lag, but there wasn't much to begin with, so... ¯\_(ツ)_/¯
The boot-loader in the newer 3B+ model is supposed to be improved, but I haven't found a difference yet. Someone else on the forum posted that one USB drive he had that would not boot on his 3B worked on the 3B+ model. So yes, in theory anyway, the newer 3B+ model should work better for USB boot, and it comes with the OTP USB boot bit set from the factory, so you can just flash a USB drive and go, which is certainly easier.
I keep most of my Pi 3B and 3B+ computers cool in 2nd generation Flirc cases.
The entire case acts as a huge heatsink. The only drawback is that the GPIO is not easily accessible. There is a slot in the bottom of the case to run wires out, but for easier GPIO access I do have a couple in open style acrylic cases from JBTek.
The fan makes noise, uses power, and collects dust, so the Flirc is definitely the better solution if you don't mess with GPIO often.
Anyway... I would say, stick with your Pi3B unless you need better Ethernet or WiFi performance.
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups...and where is that annoying music coming from?