Samsung CLX-6200FX series RTC battery replacement (#P41)

Tutorial time! We don’t have a tutorial category yet? Well, it’ll be a project then…

Let’s just skip all the YouTube tutorial BS with two-minute intros on volume 9001 and thanking their sponsors entirely, and get to the point:

You got a Samsung CLX-6200FX series printer (6220 and 6250 – probably also their predecessors 6200, 6210 and 6240) that wants you to set the date and time on every power cycle, and you’re fed up with it? Great, Samsung wasn’t a dick about servicing, so here’s what you need:

* One new CR2023 3V lithium primary cell
* A small Philips or flat head screwdriver
* An ESD strap or a grounded piece of metal nearby
* The damn printer
* Enough space to access the back of the printer (no need to lift it)
* Ten minutes of free time

Same procedure by the way for adding or replacing extended memory, see below for details. […]

23rd January 2022 23rd January 2022 By Bzzz In No Comment

Supermicro 815 1U case 2,5″ HDD and RAID card battery holder (#P40)

New year, new hardware. Given space (in general, as well as in this specific case) is limited, old hardware has to go. So it’s about time post this 3D printed thingy, since the related hardware is about to be sold.

Now, the Supermicro 815 case, CSE815, SC815 or whatever prefix is en vogue nowadays, is one of those 1U pizza boxes. Shout-out to Supermicro for using webp images on their website already – but sticking to 261 x 222 px resolution for the full-size file.

Anyway, these come in two dozen varieties plus the EOL ones, and all of them have four 3.5″ HDD hotplug caddies in the front and some 1 to 3 card slots in the back, since it is a tiny case at 1U or 44mm height regardless of the 19″ width. […]

9th January 2022 9th January 2022 By Bzzz In No Comment

The PCB (Christmas) Tree 2021 update (#P32F1)

Ah yes, the good ol’ PCB tree.
It wasn’t in use for a good part of 2021 due to the fuse burning out, unclear if it was from an accident (some parts are still wobbly) or just slightly specced too low at 1.6A (slow-blow, but 24/7 operation). Since it was placed inside a somewhat difficult to access triangle cavity of PCBs, it took me a while to open it up again and move things outside. Voltage of the DC-DC converter was lowered slightly to around 3.2V and the single fuse was replaced by two individual units placed on the outside, dividing the power rail roughly equal between upper and lower tree (by current, not by physical size) […]

26th December 2021 26th December 2021 By Bzzz In No Comment

AVM FRITZ!Box 7362 SL to 7520 upgrade + 7530 unlocking (#P39)

Quick reminder/PSA: Router patch week in every parent’s basement starts in a dozen days. Be prepared!

Not actually sure what type of…internet-free telephone service box thing my mom is using in the inherited farm house, but at my place, I needed an upgrade. Until earlier this week, an AVM Fritz Box 7362 SL (the cheapo 1&1 branded one) provided service. Bought that sucker 8 years and a month ago and it’s running just fine – except for the fact that it is considered EoL by AVM. That however is debatable, since on the one hand AVM announced EoM (end of maintenance) and EoS (service) dates for that box type to be June and December of 2019 respectively, but on the other hand nowadays no longer states exact dates for any product and has released FritzOS 7.13 for it just last month. […]

12th December 2021 12th December 2021 By Bzzz In No Comment

Tiny customizable OpenSCAD CPU shipping boxes (#P38)

Shipping season is here. For no good reason people start terrorizing the logistics companies and I’m probably one of them. Difference being: I need to get rid of stuff, not buy more. I need to ship items.

For quite some time now I’m fond of the idea of OpenSCAD as a STL file generator. While elaborate 3D designs with multiple levels of rounded edges and polynomial madness in three dimensions are better created in graphic tools such as DesignSpark, I don’t find them all that pleasing when making simple geometric shapes that need the occasional modification. […]

28th November 2021 28th November 2021 By Bzzz In No Comment

Smartbroker / DAB BNP Paribas have upgraded from papyrus (#R13)

All the Corona troubles make it a slow week for cheapo electronics…again. So here’s something outrageous that I just found out while recycling server parts, fitting and amending the most recent rant nicely.

I got several (snail mail) letters with the recent opening of a banking account with Smartbroker, who somehow use BNP Paribas as their backend and just provide a more fancy user interface with their branding. One contained the password, one contained the user name, one contained the general IBAN and whathaveyou stuff, one even was packaged in two envelopes as it is just transferred from BNP to Smartbroker to me, all for the sake of security (the mail man doesn’t care anymore about the tons of crap that I receive via mail…). […]

14th November 2021 17th April 2022 By Bzzz In No Comment

The strange formatting of Oracle-branded HGST SSDs (WHL #71)

A little tale from the world of enterprise computing (again). Well, I needed something to do alongside filing my taxes, and I recently received a bunch of hardware, so there’s that.

I ordered, after long and unfruitful discussion and some eBay detour that also didn’t work because of, well, eBay, a couple of replacement hard disks of the spinning rust type, as well as SSDs to support them. The original ZFS RAID volume that kept *ALL* my data crashed via some obscure file system bug, and since I’m not a paying Oracle customer (not that they would help me out – everything is plastered with “restore from backup” notes), I finally migrated to Ubuntu and OpenZFS. […]

31st October 2021 1st November 2021 By Bzzz In No Comment

Not-so random thoughts on LSI HBAs again (#P34F1)

A couple months ago I scraped on the surface of the topic of LSI debranding/crossflashing. Now’s a good time to visit that again, since I got another branded LSI card that I wanted free of the manufacturers old firmware and the “hey look at meeee, I’m a veeeery special controller” look in any device tree. Yes, we know you’re special, but the annoying kind of special. You’ve likely been the default card in tens of thousands of servers or the only (supported) choice people had when opting for external SAS. […]

10th October 2021 10th October 2021 By Bzzz In No Comment

Pre-Facelift Tesla Model S LED number plate lights real-world testing (WHL #70F1)

We all know who was too busy last week to upload something, and then too lazy to fix that during the entire week…

Well, here’s a very quick but conclusive report about the exchanged number plate lighting on my car. It’s not just brighter by eye or as viewed by the camera, it’s also that much brighter to anything out there swarming around at night that somebody, I do not know their name or preferred pronouns, decided to set up shop just between number plate and lights. […]

26th September 2021 26th September 2021 By Bzzz In No Comment