Which is bad?
Power supply should plug into wall first.
This way PS is under no load, less chance for surge.
If surge kill the PS when you plug it in, it won't kill the device.
Shut down before travel.
If laptop are not design to move, its not a laptop. Keep it on your desk.
It could be bad if you drop a running laptop/computer with a spinning drive.
Drive should stop spinning after sleep.
Sleep use power to keep memory active.
Hibernation copy memory to drive and complete shutdown computer.
Reload memory when startup instead of reload all programs.
To prevent fragment, don't use the computer
Fragment have no effect on SSD.
Frederick Law wrote:
Power supply should plug into wall first.
This way PS is under no load, less chance for surge.
If surge kill the PS when you plug it in, it won't kill the device.
I noticed this before. If PS is under load there is a heat dissipation.
You'll see more spark plugging it in if its under load.
Also use good quality surge protecting power bar.
If you fist plug PS into wall without connected to computer initially there is a current flow to fill up the circuit I think he means that.
Surge is the instant current when connecting 0V to power.
Current generation of PWM power supply don't have as much problem as old transformer PS.
Input and output usually isolated if design properly.
Higher surge occur when plug in 120V AC.
Not as much when connect 20V DC to computer.
One quick item they mention at the end of another topic is to not leave your PC plugged in. Even if that is good advice, it is not how any PC I've ever used or deployed is set up. Generally, PC's stay put and laptops move. The PC's remain plugged into uninterrupted power supply until removed from use. If I (or my users) had to plug in their PC at beginning of the day and unplug at end of day, it would be a high annoyance to say the least. I have enough problems getting them to close remote files and power down over weekends.
There's some decent advice in there, but specifics should be applied with a grain of salt per your use, needs, and users.
Most of our deployed laptops have a wireless mouse with a micro USB dongle which protrudes very minimally. I find it interesting that it drains power even when off, but honestly I would be far more worried about a user not storing it inside the mouse and losing the micro dongle. Ideals are one thing, but user behavior is very ingrained, especially remote users with other hassles of travel. This comment applies quite broadly to any advice contrary to habits.
I'd be happy enough if users keep security in mind instead. I can replace dying hardware. I cannot put breached data back in its box. Burn the hardware for all I care, as long as I have security and backups.
According to the video, computer should be in a Faraday cage. Unplugged, inside a freezer.
Now, using computer USB port to charge cell phone and tablet was bad.
Old USB 1 and 2 allow 500mA. Most will fry and stop working.
Newer USB ports has more protection.
A powered USB hub is always good.
Tom Gagnon wrote:
I find it interesting that it drains power even when off
Check BIOS setting.
There is one that allow USB charging when computer is off.
Whoever put that setting in laptop BIOS should be sent to Mars.
Suppose we say one sleeps 6 to 8 hours at night. Which option is good for a desktop?
How long do you want your computer to last? Every computer I've had has been abused and has typically lasted at least 5 years. After around 3 years the performance begins to be issue anyways.
Depends on what you want.
Why do you want it to sleep?
Start up faster?
Something running in background?
I usually turn it off.
I don't put desktop to sleep.
I leave work desktop running with account lock.
I've found desktop don't respond properly to sleep. It may not wake up.
If you use online license, don't keep SW open and put computer to sleep or hibernate.
It'll lose license when wake up.
Current desktop at work start up around 30 sec. SSD drives. AMD Ryzen 7 1700x.
Desktop at home 60 sec. Spinning HD with SSD cache. 3th Gen i7.
Laptop with SSD start up 30 sec. 4th gen i7.
All Windows 10.
Usually you'll need to set it up properly for sleep and hibernate to work.
Maha Nadarasa wrote:
Suppose we say one sleeps 6 to 8 hours at night. Which option is good for a desktop?
I agree with Frederick Law, no sleep or hibernate for a desktop. I restart once or twice a week and leave it running over the weekend since IT has requested we leave them on for updates to be pushed to our workstations.
There are several ways to look at wear and tear on electronic components. Some lean towards reducing heat/cool cycles by leaving it running most of the time whereas others shut down whenever they're not in use to reduce the wear on moving components and reduce risk of damage from power surges.
I honestly haven't seen much difference in performance degradation or hardware failure points over time whether a computer runs constantly or is completely shut down and unplugged every day. My work computer is almost always on and my home computer is shut off almost every night since it's in our bedroom and the fans are too noisy. Yeah, I know you can run the minimum speed at or near zero, but power management doesn't always work to ramp fan speeds up and down like it's supposed to so I have the minimum speed set to around 25% as a safeguard, and with four 120mm fans running along with a liquid-cooler for the CPU it ain't quiet.
Longest running motherboard start with a slot 1 Celeron 300 OC to 350. That's 1998.
CPU upgraded a few times with slot 1 to socket adapter.
Last CPU on it was Pentium 4 HT. 2005.
Motherboard die around 2012.
Its been running mostly 24/7.
If I can remember correctly couple of years ago I got my computer repaired for noisy fan but technician removed that fan and told me this compute didn't need a fan. My present computer is without noise at all, only thing is holding a facial tissue at rear you can sense a air flow. It is almost 4 years old.
I'll put lots of fans in computer.
Don't need to be noisy just need air flow.
Hard drives fail much faster without fans blowing on them.
Maha Nadarasa wrote:
May be useful.
14 Things That Destroy Your Computer Slowly But Surely - YouTube
Haven't watched the clip but most engineers get a new computer less than haft way the computer is destroyed
To keep up with technology (SW and HW) , I don't think engineers wait to the end of computer life for a new one
There is a noiseless table fan. I do not know whether this technology is incorporated in computer fan, because my computer fan is noiseless .
That gives me an interesting idea. I wonder if Dyson bladeless fans would ever be designed for computer cases, or if they already have been kludged to that purpose by DIY tinkering.
Fan noise is because of high air speed and fan rotation speed.
High air flow don't need to equal to high air speed.
I tend to well-ventilate my desktop workhorse machines, too. Use large-diameter fans (good quality) and you don't need as many and you'll certainly have little noise. Depending on your motherboard (and it's available utility software), you can also tune them not to run at high RPM unless they need to cool higher heat loads---keeps power consumption and noise at lower levels.
Brief investigation: Not practical.
They generate flow in open areas but not against backpressure in a small case.
They do have fans inside their base where there is also an air inlet.
They are noisy and expensive.
Fail, fail, fail. That's why not.
My home computer CPU is 8 years old and the motherboard is 3 years old, but the old motherboard still works and was bought whith the CPU . I upgraded the M/B so I could overclock the CPU and unlock the 2 additional cores. I've been running the AMD Phenom II X2 555 3.2 GHz overclocked to 3.7 GHz with 4 cores activated for the past several months and it gives my much newer workstation at my day job a run for its money.
They mix in good and bad advice.