Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [computer-hardware]

58 questions
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7 answers

How to make factory machine hard disk drive more durable? How much its estimate life span?

I wonder how can I make hard disk drive more durable? Specifically, I works in a factory environment. And almost every few months, hard disk drive in some of the factory machine are corrupted, and even unrepairable. We already implement several SSD…
adadion
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What grade of Neodymium magnets are commonly used in hard drives?

I want to buy some magnets, but the ones that I have found on online shops are mostly grade N38. They are pretty cheap, but they need to be as strong as the ones found in a hard drives. I am afraid hard drive magnets are N52 (or at least a higher…
77120
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Filling gaps in heatsink design to improve thermal conductance?

I am currently pondering modifying my laptop's heatsink and am curious whether I stand to gain any benefit at all. The CPU and GPU (similar heatsink design) reach high temperatures (90°C +) under load and the exhaust air is warm, but far from…
Betaminos
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4
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2 answers

Use two passive CPU coolers on one single CPU?

I aim on building a silent, completely passively cooled PC, with no moving parts at all (I am aware that it is cheaper to go for an inaudible computer instead, using low speed fans. This is not the point.). I came up with the idea to install not…
Benjoyo
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4
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2 answers

How do we specify among a shim, spacer, and washer?

Our small radio-control model cars have shims, spacers and washers. I am tasked with clarifying the manual and getting parts naming consistent. We have these items from less than .5mm thin up to 1/8" thick. I'm thinking of calling everything under…
Steve
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4
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Using python to send automated commands through a serial-usb-cable adapter

I have an old peristaltic pump with a 9 pin male sub-d socket labeled Gilson Serial Input Output Channel (GSIOC) that connects a master device to devices with RS422A specifications, or RS485 specifications. The GSIOC implements RS422A/RS485…
LCDub
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Is there a solution for USB Multiplexing, i.e. passing data between different devices by sharing/splitting a USB connection?

Forgive me if my title is vague, I will attempt to explain my issue. I don't know if such a solution exists and I have tried searching without any luck. I would like to utilize a passive USB protocol analyzer, a la the "Beagle" to sit in between an…
chocolate_marshmallow_soup
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2 answers

Why is minimum pressure specified on a PSU water cooling circuit?

I work in consultancy and I am designing a product for a customer. The customer has requested a specific PSU. I have contacted this PSU manufacturer and they request 6 L/min of coolant flow and minimum 3 Bar. I now have to specify a suitable pump to…
James Izzard
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Are there tools to design and test experimental hardware and firmware through emulation?

I'm a programmer and I'm interested in testing an idea I have for a SATA intercept hardware device. I'd like to design a custom piece of hardware involving SATA connections, splitting of signals etc. My first planned step is understanding the…
J.Todd
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How to measure time taken to run SCPI commands?

We all know that every program takes time to run. Normally in Python, the time built-in Python library would be sufficient to measure time-taken to run code. How may I determine how long a SCPI (Standard Commands for Programmable Instruments)…
Li JY
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How to detect what wattage that my Windows laptop is receiving via USB-PD?

I don't know too much about USB-PD. I understood that USB-PD requires negotiation between the charger and the receiver. So probably my Windows laptop (Dell XPS 9570) should be able to know the current wattage input it's receiving. Windows probably…
sasawatc
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What happens when an LCD screen shuts off?

I read about how an LCD screen works here, and it made me wonder what actually happens when the screen shuts off. Based off of this, I can think of several possibilities: Electricity is supplied to all the pixels/crystals, thus making them all…
Jo.P
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DIY Thermal Solution

What would be the best way to design a sealed computer containing a gas or liquid circulated by a fan/pump to cool the components? ( With a metal case ) Then the computer would not be susceptible to liquids or dust, while avoiding the hassle of heat…
Mr. Sir
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Computer "Ports", port scans and daemons

If I do a port scan from the internet, do I hit a bundle of wires that are physical ports into the motherboard (like a PCE port)? Or do I actually go into the operating system and interact with the virtual or 'logical' ports of the OS? I am trying…
Chris
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Why laptop keyboard has so many bus lines?

I changed one laptop keyboard on the new one and while changing it I noticed that it has 30 line bus. But from my VLSI practice, I know that keyboard can use only 1 data line and 1 clock line (PS/2) or 2 data lines on (USB). The question is why it…
Kaspar Siricenko
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