« first day (2010 days earlier)      last day (2930 days later) » 

2:31 AM
0
Q: Switching power supply only works when warm

NothingsImpossibleOkay, this is a weird one. First time on this Stack Exchange, work with computer science, and have only basic electrical knowledge, so beware of any possible misunderstandings below. Some context I have an "universal" laptop power supply, one you choose the desired output voltage with a switch...

We've got 2 or 3 related (if not dupe) questions along the lines of "Why does it work better when warm?"
 
 
5 hours later…
7:07 AM
@NickAlexeev there are many things that come to my mind what such a question could be about, not all's sfw
 
 
4 hours later…
10:52 AM
Pfweh
Clock's running too fast
Or stuff is too slow
@PlasmaHH What's your 2016 favourite pick for Linux Distro?
 
@Asmyldof I have always been with (open)suse. every distro seems to have its quirks and using the same all the time makes you get to know and workaround them...
 
11:12 AM
Guess I'll stick with Debian-baseds then :-)
Grew up with a bit of Suse, and the K-one
Relatively soon switched to Debians
 
as long as its one of the bigger ones and you are used to its weirdness (and not pissed of by it) there is really no reason to swtich to anything
 
Fair enough
Ended up replacing the PCIEx3 Samsung SSD with a SATA600 one, but now I have to redo everything
I have no idea if it is again a damaged SSD, or if this MB just isn't good at PCIE on the SSD slot
Though this SSD worked fine for a huge deal of time, it's when I put it back in that shit started going wrong
But anyway, it's been running smoothly with huge amounts of disc access (installing Win and SW) for 2 hours now with the SATA600 one, so I guess I'll just accept half-speed write and read at approximately 90% random access speeds
@PlasmaHH Any recent knowledge on whether Ubuntu or Debian is currently winning for stability and HW support?
(Since they're basically both Debian, it makes hardly any difference to me as a medium-light-user)
 
@Asmyldof no idea, and especially laptops has always been a rather unstable area
 
@PlasmaHH I know. Although, this is a laptop with almost only Desktop inside it
 
it seems you get the most support for ubuntu though and thats what counts when you run into issues I guess
 
11:25 AM
I'll have a think about it tonight. Thanks for the input though. Helps to think out loud at someone once in a while :-)
First I'll have to update the video drivers and install Steam and thorougly check whether that's still working ;-)
 
11:37 AM
anyone here have recommendations when it comes to USB hubs?
or are they all the same, pretty much?
 
some are crap, the others are worse
 
@Shalvenay I prefer to use the cheapest one of still a sort of brand for everything that can handle 12MBit and plug directly for all else. USB3.1 Hubs may have enough oomph to offer transfers up to the limits of the PC itself
No idea about that last bit being true or hopeful thinking though
 
one thing to make sure is that the hub is not backpowering the host or similar nastiness
 
 
3 hours later…
2:31 PM
hm, boss gave me my company (landline) phone and headset back and promised to resort things with the cleaning staff, this time for real... lets see how it turns out
 
 
2 hours later…
4:22 PM
@PlasmaHH No phone means no phone calls. Sounds like you lost out when he gave you the phone back.
2
 
 
6 hours later…
10:43 PM
@PlasmaHH yeah -- the worst part about the "backpower the host" thing is that a MBRS130 costs $0.10 per in T/R quantities...talk about Madman Muntz gone wild!
 
11:11 PM
@Shalvenay That'll push the power rail out of the permitable tollerance. Try again.
 
@Asmyldof hrm. if you really cared about that, you could use an ideal diode circuit -- come to think of it, what stops that sort of functionality from being built in to the hub IC?
or at least an ideal diode controller that you could wire up to a cheapo FET
 
That is built into the not cheap ones.
Cheap ones are cheap because a designer didn't spend an extra day to increase the BOM cost
Be it silicon real-estate BOM or otherwise
 
heheh. well, I think the Schottky would do the job as a retrofit for getting a dodgy hub to not fry PCs via backpowering, at least
 

« first day (2010 days earlier)      last day (2930 days later) »