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by MarkJ62
Sun Sep 09, 2018 7:16 am
Forum: Networking and servers
Topic: NFS server limiting the number of connections. Why?
Replies: 8
Views: 3063

Re: NFS server limiting the number of connections. Why?

I’m having a similar issue. I have increased the limit to 20 as suggested by Dougie Lawson. I have 18 nodes that are listed by exportfs but I can’t seem to get past 15 connected. If I pick one that hasn’t connected and manually issue the mount command it just sits there. Doing a ”netstat -a | grep n...
by MarkJ62
Thu Jun 07, 2018 2:10 pm
Forum: Other projects
Topic: advice from anyone with case printing experience
Replies: 7
Views: 1084

Re: advice from anyone with case printing experience

I just paid a professional company to knock up the design on mine. I provided them with the mechanical schematic from somewhere on here so they had the details of the Pi. I didn't have the time or any CAD experience so I turned up with paper drawings and spent an hour with the designer getting it in...
by MarkJ62
Tue Mar 27, 2018 9:57 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 10
Views: 3364

Pi ^4 Case Mk II

Now on the second iteration, it has two 60mm fans instead of four smaller ones. https://3.bp.blogspot.com/-AbLVJbYY-ZM/WrnzSFDaFbI/AAAAAAAABMQ/AU_Bemun0as2lNJOoJSRk4Bx9cxFZOugQCLcBGAs/s1600/Pi%255E4%2BMk%2BIIa.png And here is a link to the pictures... http://marksrpicluster.blogspot.com.au/2018/03/p...
by MarkJ62
Sun Mar 04, 2018 1:12 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 10
Views: 3364

Re: Pi ^4 Case Prototype

Re the power supply. I use a 5 port USB charger. You can see it in the picture of the fully assembled case. They are Astrotek USB smart charger model AT-UPS-008 or 008B. I tried an Anker but it didn’t work for the Pi’s - great for charging the iPad but not for keeping voltage/current at a constant l...
by MarkJ62
Mon Jan 01, 2018 12:37 am
Forum: Other projects
Topic: Any recommendations for CAD software for 3D printing cases?
Replies: 2
Views: 1439

Re: Any recommendations for CAD software for 3D printing cases?

The 3D printing company I used were using SolidWorks 3D. I gave them a copy of the Pi mechanicals as a DXF file that they imported into it. They spent about an hour taking my hand drawings to get onto the computer. After that I had a session with them that was around 30 mins to fix up design details...
by MarkJ62
Sat Dec 09, 2017 10:11 pm
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 10
Views: 3364

Re: Pi ^4 Case Prototype

I’ve renamed it to save confusion with other products. I am now referring to it as the Pi ^4 Case (ie Pi to the power of 4).
by MarkJ62
Sat Dec 09, 2017 10:53 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 10
Views: 3364

Pi ^4 Case Prototype

Having quite a few Pis I needed a case that could hold more than one in a single case. I am aware of two others that can be purchased, namely the Beagle Bone (and similar designs) and the BitScope blade. My Pi3's are running at 100% CPU load 24/7 so they need a case with active cooling. I had previo...
by MarkJ62
Sat Feb 18, 2017 10:02 pm
Forum: Other projects
Topic: Compatible fan and heat sinks for the official case
Replies: 4
Views: 5407

Re: Compatible fan and heat sinks for the official case

I am using a number of official cases until I can come up with something better for multiple Pis. I used Enzotech 14x14x14 mm copper heatsink on the SoC. I cut a 38mm hole in the lid and mounted the Noctua 40mm fan on top of the lid. I used the supplied cables and pull power from the GPIO pins. The ...
by MarkJ62
Sat May 07, 2016 8:50 am
Forum: Advanced users
Topic: Linux kernel is now 4.4
Replies: 114
Views: 67664

Re: Linux kernel is now 4.4

Not strictly a kernel problem as I updated the kernel successfully via rpi-update, however doing an apt-get upgrade totally stuffs a Pi2 running stretch. Computer name redacted. uname -a Linux *** 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux The following packages will be upgraded...
by MarkJ62
Tue May 03, 2016 3:41 am
Forum: Troubleshooting
Topic: Rolling back rpi-update
Replies: 3
Views: 1099

Re: Rolling back rpi-update

Is there a way to work out which comit belongs to which version? That is the version shown via the uname -a command.

Code: Select all

$ uname -a
Linux *** 4.4.7-v7+ #877 SMP Sun Apr 17 12:48:36 BST 2016 armv7l GNU/Linux
by MarkJ62
Sun Apr 17, 2016 5:15 am
Forum: Other projects
Topic: Official Pi case with unofficial 40mm fan
Replies: 2
Views: 5975

Re: Official Pi case with unofficial 40mm fan

With 4 Seti Beta tasks running its getting 55.8 degrees C. Room temp is 28 degrees. With just the heatsink it got to 79 degrees. I have a number of Pi2's which I also use. I'm in the process of swapping them out for Pi3's. The Pi2's were happy with just a heatsink. The Pi3 needs a heatsink and a fan...
by MarkJ62
Sat Apr 16, 2016 2:12 pm
Forum: Other projects
Topic: Official Pi case with unofficial 40mm fan
Replies: 2
Views: 5975

Official Pi case with unofficial 40mm fan

I took a Pi3 and put it into the official case. Nothing special about that, except they get hot, very hot. First thing was to add a copper heatsink which was enough for the Pi2. Unfortunately not so for a Pi3 running flat out. Time to add a fan. I used a 40mm Noctua as they are only 17dB. You can ha...
by MarkJ62
Tue May 20, 2014 11:37 am
Forum: Advanced users
Topic: Linux kernel is now 3.12
Replies: 72
Views: 23141

Re: Linux kernel is now 3.12

Crashed again, of course nothing on the screen so can't provide any more info.
by MarkJ62
Sun May 18, 2014 4:41 am
Forum: Advanced users
Topic: Linux kernel is now 3.12
Replies: 72
Views: 23141

Re: Linux kernel is now 3.12

I have been testing the BOINC apps under 3.12.19+ after reports of crashes on the BOINC forums. I am running the [email protected] app at the moment on it which worked fine on the 3.10 kernel that the rest of my fleet of Pi's are running. I started off by doing the kernel upgrade while still running Wh...
by MarkJ62
Sat Feb 22, 2014 11:41 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3805

Re: PiFan - Fan on a case mod

No offense but why would one want to make a quiet thing noisy when it's unnecessary? To cool down F3 to prevent it from "blowing" when trying to power a 290mA fan via the USB in addition to the power required by the Pi :lol: 290mA is well within the USB spec of 500mA. I did consider running it dire...
by MarkJ62
Sat Feb 22, 2014 11:33 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3805

Re: PiFan - Fan on a case mod

No offense but why would one want to make a quiet thing noisy when it's unnecessary? Because its in a hot location, typically 30+ degrees. With the top on the case only having a few small air holes they build up a fair bit of heat on their own when running at 100% load. As for noise I don't notice ...
by MarkJ62
Fri Feb 21, 2014 10:53 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3805

PiFan - Fan on a case mod

I've tacked a fan on one of my Pi's and thought I would share it. The full details can be found on my blog markjatboinc Here are a couple of pics http://2.bp.blogspot.com/-tY4G5eCAm5A/UwfH1letN2I/AAAAAAAAA6M/xpW4dZLdnWc/s1600/PiFan_a.JPG http://3.bp.blogspot.com/-IpNtHaNE1Lo/UwfH4qKwv3I/AAAAAAAAA60/...
by MarkJ62
Tue Apr 02, 2013 10:29 am
Forum: Other projects
Topic: 4u Bramble Case - (Pi4U)
Replies: 9
Views: 6301

Re: 4u Bramble Case - (Pi4U)

Hi Paul-E

Any update to the case, photos, etc?
by MarkJ62
Fri Mar 01, 2013 8:34 pm
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1239

Re: Pi on a windows network

I now have the router assigning a static IP to the Pi so at least it doesn't change.

Samba thinks its already installed
by MarkJ62
Mon Feb 25, 2013 11:22 am
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1239

Re: Pi on a windows network

Have you tried hostname.local ? Another option is to make a resolver script using arp, grep and maybe some other tools to use MAC addressing, instead of IP addressing. I think windows machines can be set up to pass DNS information back to the router, it's roundabout the same place as WINS resolutio...
by MarkJ62
Wed Feb 20, 2013 2:26 pm
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1239

Pi on a windows network

I have been having a bit of fun getting my Pi's to behave on a windows network. My router can see all the devices, however the Pi's don't seem able to see the windows machines. They can access the internet fine and I can download updates and surf the net with Midori just fine. I need to get the Pi's...
by MarkJ62
Sun Feb 10, 2013 11:36 am
Forum: Other projects
Topic: 4u Bramble Case - (Pi4U)
Replies: 9
Views: 6301

Re: 4u Bramble Case - (Pi4U)

There are commercially available power supplies. Sure Electronics sells them via eBay in 3, 10 or 20 amp versions. Some wiring required.

The link: is here
by MarkJ62
Tue Jan 29, 2013 10:00 am
Forum: Other projects
Topic: 4u Bramble Case - (Pi4U)
Replies: 9
Views: 6301

Re: 4u Bramble Case - (Pi4U)

Hi, We'll put some of the photos up. We've got 4 Pis installed so far and are awaiting for a delivery from Farnell for the rest. <snipped> One thing that we've picked out of the project so far is that there could be some demand for a standard ATX sized PSU with breakout for such tasks? We've fitted...
by MarkJ62
Tue Dec 18, 2012 11:14 am
Forum: General discussion
Topic: RS & Allied Update #5 (9th Nov)
Replies: 348
Views: 48053

Re: RS & Allied Update #5 (9th Nov)

I have order # 10101813xx dated 27th of August ordered through Allied/RS. The only communication from them was the order confirmation.

If I read the shipping table at the beginning of this thread correctly it should have been sent by the 16th of December, which has now passed.

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