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Search: Posts Made By: westom
Forum: Hardware & Devices 14 Jul 2016
Replies: 21
Views: 606
Posted By westom
What is a power supply? The best voltage...

What is a power supply? The best voltage regulator. Why would anyone need a 'magic box' on a power cord? They would spend $hundreds to fix a problem created by saving $tens on a PSU. Just another...
Forum: Hardware & Devices 14 Jul 2016
Replies: 21
Views: 606
Posted By westom
Lightning repeatedly struck one wall. So they...

Lightning repeatedly struck one wall. So they installed lightning rods. Lightning struck that wall again. If lightning strikes inside a rod's "cone of protection", then lightning is saying a human...
Forum: Hardware & Devices 13 Jul 2016
Replies: 21
Views: 606
Posted By westom
A protector was so grossly undersized as to be...

A protector was so grossly undersized as to be destroyed by a surge that could not even melt a phone line. That protector should not have melted. Melting suggests a protector was so unsafe as to be...
Forum: Hardware & Devices 13 Jul 2016
Replies: 21
Views: 606
Posted By westom
Responsible is to read what was stated. ...

Responsible is to read what was stated. Protection was strongly recommended. But only protection that works. Effective protection at a computer is already inside a computer. In some cases, an...
Forum: Hardware & Devices 13 Jul 2016
Replies: 21
Views: 606
Posted By westom
Why are protectors rated by numbers in terms of...

Why are protectors rated by numbers in terms of an 8/20 microsecond spike? Because that transient requires protection. Please stop ignoring a spec number, such as 8/20 usec, because you did not...
Forum: Hardware & Devices 13 Jul 2016
Replies: 21
Views: 606
Posted By westom
That is not how any protection works. Surges and...

That is not how any protection works. Surges and spikes are microsecond events. Disconnecting takes milliseconds or seconds. How many hundreds consecutive surges would pass through a disconnecting...
Forum: Hardware & Devices 11 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
A smelly PSU was replaced. Computer still did...

A smelly PSU was replaced. Computer still did not work. How can that be when you know a burned smell from a PSU means it must be defective?

Who said anything about complex equipment? Read...
Forum: Hardware & Devices 11 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
Another powered off a computer that was always on...

Another powered off a computer that was always on for months. It would not repower. That proved (using wild speculation) that power cycling is destructive. Then I took it. A pullup resistor had...
Forum: Hardware & Devices 11 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
Point demonstrated by his post. Every computer...

Point demonstrated by his post. Every computer has a power controller. He never heard of it? Those educated by hearsay, speculation, and advertising would not know of that controller. That...
Forum: Hardware & Devices 11 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
A perfectly good PSU can act defective in an...

A perfectly good PSU can act defective in an otherwise good system. A bad PSU can actually boot and run a system. Reality was explained multiple times. Many assume a defect and a failure always...
Forum: Hardware & Devices 09 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
So they did not observe what was relevant. They...

So they did not observe what was relevant. They did not use a meter for 30 seconds to learn what exists. Then kept removing or swapping parts (ie RAM) that are totally unrelated to the power...
Forum: Hardware & Devices 09 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
He is spot on. Never assume good or bad is...

He is spot on. Never assume good or bad is defined by something working or not working. Reality is more complex. Learning how to fix things technical also teaches realities of everything else in...
Forum: Hardware & Devices 09 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
Impossible. Only voltages connected to a...

Impossible. Only voltages connected to a motherboard are 3.3, 5, and 12 volts. None of those shocks anyone. Otherwise a 12 volt battery in a car is also electrocuting many people.

If a...
Forum: Hardware & Devices 06 Jul 2016
Replies: 56
Views: 1,369
Posted By westom
Why not? If a power supply cannot provide power,...

Why not? If a power supply cannot provide power, then circuits that have existed, long before PCs existed, would simply power off that PSU. Low power never damages electronics. But many fear...
Forum: Hardware & Devices 03 May 2016
Replies: 20
Views: 774
Posted By westom
That means something is 100% defective -...

That means something is 100% defective - constantly. And that defect can be identified (by numbers) at any time - both when a system is or is not working.

This concept is constantly demonstrated...
Forum: Hardware & Devices 01 May 2016
Replies: 20
Views: 774
Posted By westom
Was already explained. A defect exists...

Was already explained. A defect exists constantly. Defective hardware can still boot and run a computer. Then cause strange intermittent failures months or year later. In your case, a defect maybe...
Forum: Hardware & Devices 01 May 2016
Replies: 20
Views: 774
Posted By westom
Foolish is to think that means a defect comes and...

Foolish is to think that means a defect comes and goes. A defect exists constantly. Defective hardware can still boot and run a computer. Then cause strange intermittent failures months or year...
Forum: Hardware & Devices 07 Mar 2016
Replies: 22
Views: 835
Posted By westom
Understand some basic semiconductor concepts. ...

Understand some basic semiconductor concepts. Semiconductors use PN junctions to isolate the various circuits in an integrated circuit. That means voltage on all other pins must remain within VCC...
Forum: General Discussion 17 Sep 2013
Replies: 7
Views: 1,714
Posted By westom
First, what a power supply does on power off is...

First, what a power supply does on power off is decided by a power controller - a separate item. The power controller could have hardware damage. Or a BIOS setting that says how it powers down...
Forum: Network & Sharing 15 Sep 2013
Replies: 21
Views: 3,637
Posted By westom
Again, if a surge is incoming on ethernet, then...

Again, if a surge is incoming on ethernet, then at the same time, that same current is outgoing to all connected computers, etc. Long after that current has flowed through everything, then only one...
Forum: Network & Sharing 13 Sep 2013
Replies: 21
Views: 3,637
Posted By westom
Sacrificial is a myth. If a destructive current...

Sacrificial is a myth. If a destructive current is incoming to the router, then the same current, at the same time, is also outgoing to attached electronics. Nothing stops a surge - especially not...
Forum: General Discussion 14 Aug 2013
Replies: 12
Views: 1,859
Posted By westom
That standard applies even to 1930 wired houses. ...

That standard applies even to 1930 wired houses. If the receptacle will accept that plug, then wires to that receptacle are good enough. However, many homeowners ignore warnings of a wire...
Forum: General Discussion 14 Aug 2013
Replies: 12
Views: 1,859
Posted By westom
Its AC plug defines wires. If the AC plug...

Its AC plug defines wires. If the AC plug (typically NEMA 15) can attach to that wall socket, then amperage and wire gauge is sufficient. If an air conditioner requires more amperage (a heavier...
Forum: General Discussion 13 Aug 2013
Replies: 12
Views: 1,859
Posted By westom
Useful answers also provide numbers. Normal...

Useful answers also provide numbers. Normal voltage for all computers is even when incandescent bulbs dim to 40% intensity. Numbers that define voltages that low were even in Intel ATX standards...
Forum: Performance & Maintenance 23 May 2013
Replies: 18
Views: 3,508
Posted By westom
If it does that, then post the manufacture spec...

If it does that, then post the manufacture spec numbers (ie %THD) that define smoothing. Some of the 'dirtiest' power seen by computers comes from a UPS in battery backup mode. That 'dirty' power...
Showing results 1 to 25 of 85

 
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