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by MaxK1
Mon Jun 04, 2018 12:47 pm
Forum: General discussion
Topic: My Pi experience with Element14 vs. RS/Allied
Replies: 3
Views: 246

Re: My Pi experience with Element14 vs. RS/Allied

Too small a sample. I can tell you that from my small sample (15 total - B, B+, 2B, 3B, 3B+ and 1 lone Pi 0) from E14 and RS (ordered from Adafruit, MCM, Allied and Microcenter) haven't had a dud yet. At my local Microcenter, they are locked up or kept in the back. They tend to grow legs... Some of ...
by MaxK1
Sat May 26, 2018 1:25 pm
Forum: Troubleshooting
Topic: Segmentation Fault while running cpuburn a-53
Replies: 20
Views: 582

Re: Segmentation Fault while running cpuburn a-53

It sounds like ren'py doesn't work very well on the Pi in the first place (doesn't run all games) and needs 256M dedicated to the GPU. That's a big chunk.

Anybody know if there a way to determine the maximum GPU memory actually being used?
by MaxK1
Fri May 25, 2018 9:58 pm
Forum: Troubleshooting
Topic: Segmentation Fault while running cpuburn a-53
Replies: 20
Views: 582

Re: Segmentation Fault while running cpuburn a-53

No, not a surprise at all. And any degree of overclocking is a gift or crap shoot anyway :D At least we have a simple procedure to fine tune performance unlike some other boards which shall remain nameless... :-)
by MaxK1
Fri May 25, 2018 6:48 pm
Forum: Troubleshooting
Topic: Segmentation Fault while running cpuburn a-53
Replies: 20
Views: 582

Re: Segmentation Fault while running cpuburn a-53

Been there, done that... :( and it failed the 2 concurrent "memtester" instances with the sdram_freq at anything over 450. I don't think I've tried arm_freq=1540 since core and sdram were reduced to 450, so that will get another shot when I have time. There just doesn't seem to be as much headroom a...
by MaxK1
Fri May 25, 2018 5:13 pm
Forum: Troubleshooting
Topic: Segmentation Fault while running cpuburn a-53
Replies: 20
Views: 582

Re: Segmentation Fault while running cpuburn a-53

I'm running a mainframe emulator that will take all of a single core and then some. It has been running for >12days with the following. arm_freq=1500 force_turbo=1 core_freq=450 sdram_freq=450 over_voltage=4 gpu_mem=160 disable_pvt=1 gpu_freq=500 sdram_schmoo=0x02000020 I'm going to take another sta...
by MaxK1
Fri May 25, 2018 8:47 am
Forum: Troubleshooting
Topic: Segmentation Fault while running cpuburn a-53
Replies: 20
Views: 582

Re: Segmentation Fault while running cpuburn a-53

try running multiple instances of memtester - I have overclocked my pi3+ and running a single instance repeatedly (memtester 100M 30) would not fail, but running a couple of instances would fail after a few passes. I backed off the sdram clock until it ran through several memtester instances without...
by MaxK1
Tue May 22, 2018 9:59 am
Forum: Beginners
Topic: [BEGINNER] RaspberryPi Care
Replies: 3
Views: 114

Re: [BEGINNER] RaspberryPi Care

What case? (post a link or picture) How is the board secured in the case?
by MaxK1
Mon May 21, 2018 4:36 pm
Forum: Beginners
Topic: Trouble connecting to wifi
Replies: 6
Views: 164

Re: Trouble connecting to wifi

Past the "sell by" date is a common problem, you are better off using the Pi forums than going off the reservation for bit rotted "how-to's" written by individuals who may or may not have known what they were talking about when the information was current!
by MaxK1
Tue May 15, 2018 12:06 pm
Forum: Troubleshooting
Topic: USB voltage slowly dropping
Replies: 16
Views: 513

Re: USB voltage slowly dropping

It does sound like a bad solder joint on the board (maybe more than 1, which could account for the failure of 1 core I suppose)
by MaxK1
Tue May 15, 2018 8:34 am
Forum: Troubleshooting
Topic: USB voltage slowly dropping
Replies: 16
Views: 513

Re: USB voltage slowly dropping

Can we assume latest Raspbian, fully updated and no overclocking? Does it get VERY hot at any point? And just to be sure, this is a 3B not a 3B+? Could you post your /boot/config.txt? The kernel crapping out on CPU 2 is probably reason enough to RMA it but the fact that you soldered the power connec...
by MaxK1
Wed Apr 25, 2018 4:15 pm
Forum: Troubleshooting
Topic: Raspberry PI 3 "Under Voltage"
Replies: 9
Views: 380

Re: Raspberry PI 3 "Under Voltage"

Interesting ...
by MaxK1
Wed Apr 25, 2018 12:23 pm
Forum: Troubleshooting
Topic: Raspberry PI 3 "Under Voltage"
Replies: 9
Views: 380

Re: Raspberry PI 3 "Under Voltage"

I have a number of USB chargers, cables and power banks with uUSB connectors that just don't mate properly with any of my Pi's (Too loose) That's why I gave up using them. I have exactly 1 that does fit well, but it is connected to a 1.5A charger (for a tablet) so only usable on an older Pi . I almo...
by MaxK1
Wed Apr 25, 2018 8:07 am
Forum: Troubleshooting
Topic: Raspberry PI 3 "Under Voltage"
Replies: 9
Views: 380

Re: Raspberry PI 3 "Under Voltage"

I have had couple of so-called PSU's go bad anywhere from an hour to a few days. (In other words, built to pass inspection, but not much else...) And as Mahjongg said - most inexpensive cables (even some of the spendy ones) are pure crap (thin wire, poor connectors) My preference is to power my Pi's...
by MaxK1
Tue Apr 24, 2018 10:38 am
Forum: Advanced users
Topic: How to expand Virtual Memory on RPi B3 +?
Replies: 28
Views: 983

Re: How to expand Virtual Memory on RPi B3 +?

Just a comment: If you NEED that much swap space, you are probably in very deep weeds. You are likely in deep weeds if you even approach 203Mb... Are you sure you haven't allocated too much memory for the GPU?
by MaxK1
Sun Apr 22, 2018 8:17 am
Forum: Beginners
Topic: my RPI2 is Working ... no problems at all.
Replies: 5
Views: 235

Re: It's Working ...

Welcome aboard! You have entered the fun world of the Pi... What are your plans for it? Sounds like some kind of media player. You may want to add a hard drive or flash drive(s). And pick up some more uSD cards so you can back up what you have, create a "recovery disk" or play around with other dist...
by MaxK1
Sat Apr 21, 2018 1:47 pm
Forum: Troubleshooting
Topic: Pi 3 not generating video anymore. sd card and PSU are okay.
Replies: 18
Views: 742

Re: Pi 3 not booting anymore. sd card and PSU are okay.

A couple of more things to try: config_hdmi_boost=n (n=6..11) in /boot/config.txt try pulling/wiggling the HDMI cable (I have 1 that needs to be pulled out just a hair to work) also some cases prevent the cable from being fully inserted. without a little "plastic surgery" . Also had 1 cable that had...
by MaxK1
Tue Apr 03, 2018 8:39 am
Forum: Beginners
Topic: Looking for Pi 3 B+ overclock Settings
Replies: 11
Views: 6594

Re: Looking for Pi 3 B+ overclock Settings

What other settings have you changed? There is more to it than just changing arm_freq in /boot/config.txt. The heatsink/fan allow it to run cooler when the cpu is really busy for extended periods.
by MaxK1
Mon Apr 02, 2018 2:27 pm
Forum: General discussion
Topic: Interfacing small display to Rpi3
Replies: 1
Views: 96

Re: Interfacing small display to Rpi3

Adafruit (and others) have a number of small displays designed for the pi. Not sure what you mean by "smart".
by MaxK1
Sun Apr 01, 2018 11:21 pm
Forum: Troubleshooting
Topic: VGA Monitor Flashing On And Off Over And Over [SOLVED]
Replies: 8
Views: 285

Re: VGA Monitor Flashing On And Off Over And Over

Have you compared /boot/config.txt on the raspbian system to the one on Ubuntu?
by MaxK1
Sun Apr 01, 2018 11:16 pm
Forum: Beginners
Topic: Looking for Pi 3 B+ overclock Settings
Replies: 11
Views: 6594

Re: Looking for Pi 3 B+ overclock Settings

Like I said. It's a crapshoot.
by MaxK1
Sat Mar 31, 2018 9:16 pm
Forum: Beginners
Topic: Looking for Pi 3 B+ overclock Settings
Replies: 11
Views: 6594

Re: Looking for Pi 3 B+ overclock Settings

Overclocking has always been a crapshoot and there is probably less "headroom" to work with on a 3B+. I haven't (yet) tried overclocking my 3B+. I had 1 3B overclock to 1.44 GHz and a couple of others that went to 1.35GHz. I'm hoping for somewhere between 1.55GHz and 1.6GHz with a large heatsink and...
by MaxK1
Sat Mar 31, 2018 1:20 pm
Forum: General discussion
Topic: want build Raspberry Pi - what size SD card
Replies: 10
Views: 507

Re: want build Raspberry Pi - what size SD card

+1 I suggest at least 2 SD cards per pi (1 "live", 1 "back-up") and a "recovery" sd card with whatever tools you feel you might need for recovery or troubleshooting. And an inexpensive SD card reader/writer. If you want, add flash drives as you see fit. Develop a backup/maintenance plan and follow i...
by MaxK1
Sat Mar 31, 2018 10:43 am
Forum: General discussion
Topic: Powering through GPIO
Replies: 5
Views: 251

Re: Powering through GPIO

@joan - I also dislike using the term "GPIO" in this context. I have used "GPIO header" in the past, but I think I like "expansion header" better. No matter what you call it, pins 2 and 4 are +5V, pin 6 is one of several Gnd pins. I usually try to avoid soldering directly to those header pins by usi...
by MaxK1
Fri Mar 30, 2018 11:32 am
Forum: Troubleshooting
Topic: Simple fix to broken SD connector
Replies: 1
Views: 84

Re: Simple fix to broken SD connector

Nice use for those adapters you always get with a uSD card! If you build your cases, it gives you an option to move the SD card slot to a more convenient location as well. Do you know how long the wires can be?

PS - you are correct: It is not as pretty as the original... :D
by MaxK1
Fri Mar 30, 2018 6:24 am
Forum: Troubleshooting
Topic: VGA Monitor Flashing On And Off Over And Over [SOLVED]
Replies: 8
Views: 285

Re: VGA Monitor Flashing On And Off Over And Over

Your original post said that it was flashing with raspbian as well. Have you compared /boot/config.txt on both sd cards?

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