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10 votes
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Cores that don’t count
8 votes -
DSP on the ESP32 With Faust
3 votes -
Does reformatting an ext4 partition fix bad sectors, and what are they anyway?
My Linux desktop is having a bit of difficulty with bad sectors. Lately I've had to boot into recovery and run an fsck a few times to try to fix a problem where the OS drops into read-only mode at...
My Linux desktop is having a bit of difficulty with bad sectors. Lately I've had to boot into recovery and run an fsck a few times to try to fix a problem where the OS drops into read-only mode at the drop of a hat. Today I tried copying some files from one directory to another and got the following error message:
cp: error reading "foo/bar": Input/output error
I've just booted into a live USB and run
fsck /dev/sda1 -c
and it fixed a load of bad sectors, but the above error message is still happening.A bit of googling tells me that this is down to bad sectors on the SSD, and I'm not really sure what that means. Is anybody able to enlighten me? And as a follow-up question, would reformatting the hard drive resolve the problem, or are there any other things I can try to fix it?
9 votes -
The Beautiful Machine
5 votes -
Why Java VM crashes are often caused by bad memory
10 votes -
The Intel 8086 processor's registers: from chip to transistors
6 votes -
How the Nintendo Switch prevents downgrades by irreparably blowing its own fuses
17 votes -
Video of a still functioning 1958 FACOM 128B Japanese Relay Computer
7 votes -
What I want to see from 2020 ThinkPads
18 votes -
MNT Reform open source, modular laptop crowdfunding campaign launches in February
9 votes -
Choosing a new printer
I'm thinking about getting a new printer. My needs are basically to print out textual documents 2-3 times per month from macOS. I don't need to print photos. I will not buy an inkjet because of...
I'm thinking about getting a new printer. My needs are basically to print out textual documents 2-3 times per month from macOS. I don't need to print photos. I will not buy an inkjet because of the outrageous price of the ink. I would like to have fax support (my spouse sees a lot of doctors and they still use fax machines a lot, and we're not comfortable sending personal medical info via a fax service on the web), and it would be nice if we could also scan documents. So I'm thinking a multi-function device.
We currently have a Brother 7840W MFC with print, fax, copy, and scan. It's over 10 years old (maybe 15?) and I dislike it. It's been slowly losing functionality over the past 5+ years. The WiFi went out, but I was able to connect it via wired ethernet to a computer and share it from there. The drivers insist that there's a paper jam, but there isn't and it prints just fine (but sounds like some of the internal mechanical components are going to die any day now.) The UI of the printer is awful. I recall having to use the phone pad to enter my WiFi password, and it was like texting on a Motorola StarTAC. (Like if you want the letter "C" press the number "2" three times, etc.) The drivers and related software don't work like normal macOS software. (Disclosure: I also once wrote a scanner driver for Brother and it was horrible, but they shipped it, so I'm not real comfortable putting their software on my computer. But that was 25 years ago, so maybe they're better now?)
I've heard horrible things about the drivers and software of most other major printer makers - HP, Epson, Lexmark, etc. I'm guessing what I'm looking for doesn't exist, but I just want a multi-function device in as small a package as is reasonable, and with a UI on the device and software that doesn't suck and that won't die on me in < 5 years. Does such a thing exist?
17 votes -
My new Mini-ITX Gaming PC Build
EDIT: Since a few people now have not realized how old this topic is before making a comment, see above date ↑. :) My old PC's CPU (i7 930) started to critically fail after 8+ years of being...
EDIT: Since a few people now have not realized how old this topic is before making a comment, see above date ↑. :)
My old PC's CPU (i7 930) started to critically fail after 8+ years of being overclocked from 2.8 to 4.0 GHz, so I decided to build a new one based on the Ultra-Compact Mini-ITX Gaming PC Build from TechBuyersGuru.
I went with Mini-ITX this time since my old PC was in a huge Antec P193 tower which weighs 16.4kg (36.2lbs) before components and so was a giant PITA to move around. The new Sugo SG13 case is roughly 1/7th the volume and initial weight so is much more convenient to move (but not build!).
p.s. I was unsure whether to post this 'buildapc' style content in ~tech or ~comp.... thoughts?
PCPartPicker Part List
Parts labeled incompatible are not... see "Notes" below in Build Process section.
Salvaged from old PC:
GPU
-$0
- EVGA - GeForce GTX 980 Ti 6GB Superclocked ACX 2.0+ Video Card
SSD
-$0
- Samsung - 850 Pro Series 1TB 2.5" Solid State Drive
SSD
-$0
- Samsung - 840 Pro Series 256GB 2.5" Solid State Drive
HDD
-$0
- Hitachi - Deskstar NAS 4TB 3.5" 7200RPM Internal Hard DriveNew Components:
Case
-$72
- Silverstone - Sugo SG13B-Q Mini ITX Tower Case
Mobo
-$190
- Gigabyte - Z370N WIFI Mini ITX LGA1151 Motherboard
CPU
-$325
- Intel - Core i5-8600K 3.6GHz 6-Core Processor
Cool
-$114
- Silverstone - NT06-PRO 74.0 CFM Sleeve Bearing CPU Cooler
RAM
-$220
- Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory
PSU
-$175
- Silverstone - 600W 80+ Gold Certified Fully-Modular SFX Power Supply
M.2
-$143
- Crucial - MX500 500GB M.2-2280 Solid State Drive
M.2
-$143
- Crucial - MX500 500GB M.2-2280 Solid State DriveTotal:
$1382
(CAD)
Build Process w/ Pictures:
TL;DR - Behold my new Battlestation, IN ALL HER GLORY!!!
After saying goodbye to my old, heavy, oversized, Antec P193 case...
Unboxing the new one, which is almost the same volume as my UPS!...
And prepping all the new PC components for a photo op...
I began the arduous process assembling my new computer.Everything went fairly smoothly to start. I installed the RAM, M.2 Drives, CPU and CPU Cooler before mounting the motherboard to the case, as instructed in the build guide. The CPU Cooler was a PITA to attach but that's no surprise as they always are.
Note: These "incompatible" parts listed on PCPartsPicker actually do fit together as the build guide said they would. However the RAM and CPU cooler fan are actually touching and I barely managed to squeeze them in together, so the build guide probably isn't lying when it said that particular low-profile RAM might be the only one that actually works with the cooler.
I then mounted the motherboard to the case and began slowly plugging everything else in. This was a particularly slow and frustrating process as I have pretty large hands and everything was incredibly tiny, in incredibly cramped positions, and required more finesse to get in place than I could muster with my fingers alone. As a result I wound up using long needle-nose pliers, including some bent-angle ones, to get most everything plugged in.
This is when I ran into my first major problem though... and one that was not mentioned in the build guide at all. The Case's front panel USB cable wouldn't fit in the motherboard with the CPU cooler fan in place. After trying fruitlessly to get the cable plugged in for 30min I finally gave up and decided to solve the issue the old fashioned way and it plugged in just fine afterwards. (Thanks for saving my ass yet again, Mr. Dremel!)
The other potential issue was due to the CPU cooler and case mounted PSU, which aren't supposed to work together, but once again as the build guide suggested they actually do... with a whopping 3mm clearance between them! At this point I also decided to swap out some of the ribbon power cables that came with the new PSU for some spare braided ones I had from another build since they are much nicer looking and allow for better airflow.
Note: The other supposed incompatibility listed on PCPartPicker is due to the fact that the case only officially supports 3x 2.5" drives or 1x 3.5" with 1x 2.5" but that's easy enough to get around, as explained below.
I also decided to cram an extra SSD under the front case fan, secured with double sided tape to the properly mounted SSD on the case floor panel. It worked just fine and allowed me to get my 3.5" 4TB HDD properly mounted on the underside of the top plate. Linus Tech Tips, in his similar Sugo SG13 build, even managed to squeeze 2 more SSDs above the PSU using double sided tape as well, so I guess that even leaves me with some room to expand my storage later. ;)
The rest of the build assembly process went relatively smoothly and once everything was hooked up, in position and plugged in, it booted straight into windows 10 (which was still on my old 1TB SSD). The moment when a new PC build gets past the POST is always a huge relief, however that momentary relief soon turned to dread as I quickly noticed a pretty big problem; The machine couldn't detect one of my new M.2 SATA drives.
After several hours of frustrated tinkering and much googling I finally found out the reason why, cursing PCPartPicker for not warning me and face-palming pretty hard for not having read the motherboard specs more carefully. It turns out that the Z370N motherboard actually only supports 1x M.2 SATA drive and the second M.2 slot is NVMe only. I had apparently just wasted $140+ on an M.2 SATA drive I couldn't use and my plans to configure them both in RAID 0 was shattered. But that's honestly not the worst part... in order to get the useless M.2 drive back out I had to basically FULLY DISASSEMBLE my entire build again since the NVMe M.2 slot is located on the bottom of the motherboard!
Despite the serious temptation to just leave it in there even though I couldn't use it, I wound up going through with the disassembly purely because I had a pretty good idea for how to actually make use of that second M.2 SATA drive based on something I saw on Linus Tech Tips a few months ago. So rather than leaving it in there or even returning it, after ordering myself the necessary enclosure I now have myself a pretty nice DIY 500GB Thumb drive. ;)
So several hours later after completely taking apart my new build, removing the bottom mounted M.2 SATA drive, and fully reassembling my build once again, I booted it up, it got past the POST and into Windows 10 again. I then reactivated Win 10 on the new hardware configuration (which was surprisingly painless compared to how it used to be where you needed to actually phone Microsoft) and then began the process of installing Linux Mint on the M.2 SATA drive I still had remaining.
Conclusion:
After several days of going at it now, I am finally done and my new computer is fully assembled, functional and ready to use. As always with building computers it was a bit scary, a bit painful, and more than a bit frustrating but ultimately well worth it. I couldn't be happier with the results and can't wait to overclock this bad boy when I get the chance!36 votes -
Sonic Battle (GBA) Renderer Series
6 votes -
Would it be bad to mount a macbook pro upside down on a VESA tray?
I've got a smaller desk with two monitor arms -- one with a monitor (left side, different system) and one with a VESA mounted tray for my macbook pro (late 2013 15".) I'm going to be adding a...
I've got a smaller desk with two monitor arms -- one with a monitor (left side, different system) and one with a VESA mounted tray for my macbook pro (late 2013 15".)
I'm going to be adding a 1440p monitor from the macbook pro, but I'm short on desk space. Instead of having the laptop on the tray normally, if I lay it lid down with the laptop portion up, the laptop base could sit behind the new monitor with the screen coming out the bottom -- perfect for static applications like VSCode, iTerm2, etc.
Here's a mock up. The thicker outline represents the macbook pro screen.
Can anybody foresee any issues with this configuration?
6 votes -
What's your dream laptop for running *nix?
What's your dream laptop for running *nix? I'm currently using a Lenovo Thinkpad T410s, and it's getting ready to die. I think it's a great machine, but every computer eventually dies. It runs...
What's your dream laptop for running *nix?
I'm currently using a Lenovo Thinkpad T410s, and it's getting ready to die. I think it's a great machine, but every computer eventually dies. It runs Debian 8 (Jessie), but it can't handle 9 (Stretch) without overheating. On top of that, I need to use the proprietary drivers! My computer got dropped on the floor today (not my fault!), and it got me thinking that maybe it's time to start shopping for a new laptop.
What are your ideas about what a good laptop for *nix OS's? Any recommendations? What should I look for? What should I avoid?
I love having a SSD HDD, and playing with different distros, but I'd like to avoid the headache I've had with the propitiatory Intel drivers. I like to have control of my hardware, but still use the latest software. If a Raspberry Pi or BeagleBone could match the performance of a laptop then I'd seriously consider using one.
26 votes -
An Introduction to Mobile Networks, SIM Cards, and GSM.
9 votes -
The Ballad of AM4: How AMD Stretched a CPU Socket from 28nm to 7nm
9 votes -
AMD announced Ryzen 3000
22 votes -
The Computer without a Microprocessor - The Gigatron
5 votes -
Coding for the Parallel Sega Saturn DSP
5 votes -
SGI RealityEngine Paper
2 votes -
Lag and Blanking on the SNES
6 votes -
Building the perfect box: how to design your Linux workstation (1996)
13 votes -
Modern Microprocessors
6 votes -
Evolution of the x86 Context Switch in Linux
4 votes -
Why I use old hardware
27 votes -
What SSD should I buy?
Right now I have this SSD and apparently it's pretty outdated. I wanted to get a 500GB one that's quite a bit faster without being too expensive (so less than $100 at the least.) Any suggestions?
10 votes -
Best 120mm fans for a desktop?
I was looking for preferences on 120/140mm case fans. RGB is a want, but not at the expense of quality fans. I'm pretty new to the topic and not super familiar with the technical side. So open to...
I was looking for preferences on 120/140mm case fans. RGB is a want, but not at the expense of quality fans.
I'm pretty new to the topic and not super familiar with the technical side. So open to reading more in depth too.
Thanks!
7 votes -
Every 7.8μs your computer’s memory has a hiccup
19 votes -
Reverse Engineering Pokémon GO Plus
8 votes -
Anyone use special keyboards?
7 votes -
Overview of the Apple T2 Security Chip — Apple [PDF]
8 votes -
How important is response time in monitors and how distinguishable is it?
I'm currently looking for a new monitor and I have the ASUS MG279Q, the ASUS PG248Q and the ASUS MG278Q. Now, my setup is not the highest end, but decent with an i7 and a 1060 3GB, and there are...
I'm currently looking for a new monitor and I have the ASUS MG279Q, the ASUS PG248Q and the ASUS MG278Q. Now, my setup is not the highest end, but decent with an i7 and a 1060 3GB, and there are three concerns I have currently not found an answer for:
- The (potential) difference in quality between the MG279Q's IPS panel and the MG278's TN panel
- And the delay difference, the TN panel having a 1ms response time and the IPS' 4ms
- If my setup can even handle 1440p/144Hz (I don't need to play on the highest settings, nor do I need to reach those 144 FPS), in which case I would tend more towards the PG248Q
I'd love to upgrade towards 1440p as the screen real estate would be good for working (which I do a lot on the PC) and I would, I could later upgrade my GPU if the performance in games isn't satisfactory. I think my setup wouldn't have any issue handling day to day tasks and if need be I can play on lower resolutions or lower graphic settings. Also I wonder how large the difference between the IPS and TN panel is and if it's noticeable, particularly with colours.
Does anyone of you have experience with the subject or with the monitors named in particular?
20 votes -
Making sense of the Supermicro motherboard attack
14 votes -
RISC-V implemented in a night
14 votes -
Linux boots on Shakti processor, India's first RISC-V chip
9 votes -
The Google H1 Fritz Chip
7 votes -
Reverse emulating the NES to give it SUPER POWERS!
13 votes -
Dell Unveils New Ubuntu Laptops
12 votes