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Search: Posts Made By: westom
Forum: General Discussion 17 Sep 2013
Replies: 7
Views: 767
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: 1,404
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: 1,404
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: 971
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: 971
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: 971
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: 1,406
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...
Forum: Performance & Maintenance 23 May 2013
Replies: 18
Views: 1,406
Posted By westom
Power strip protector and UPS manufacturers...

Power strip protector and UPS manufacturers quietly recommend not doing that. They prefer to not discuss why. A power strip protector should not be powered by the UPS. Same electrical problems do...
Forum: Performance & Maintenance 22 May 2013
Replies: 18
Views: 1,406
Posted By westom
The feature is completely defined by a...

The feature is completely defined by a motherboard manufacturer. To say more, define that manufacturer and whose BIOS they have used/modified.

Completely irrelevant is the OS and any other...
Forum: General Discussion 17 Jan 2013
Replies: 51
Views: 2,476
Posted By westom
A power supply can behave unstable without a...

A power supply can behave unstable without a load. A behavior that varies with each unique design.

Many speculations posted. Too many suspects defined by too few hard facts.

Any analysis of...
Forum: General Discussion 16 Jan 2013
Replies: 51
Views: 2,476
Posted By westom
Correct. But irrelevant to the OP's problem. ...

Correct. But irrelevant to the OP's problem. The point: a 350 watt supply can probably be swapped in and is sufficient to temporarily power the OP's intermittent system. A multimeter can confirm...
Forum: General Discussion 15 Jan 2013
Replies: 51
Views: 2,476
Posted By westom
Most computers consume less than 200 watts. And...

Most computers consume less than 200 watts. And might demand 350 watts for an extremely short period. Sizing a power supply means amperes for each DC voltage. Wattage is a rather useless number....
Forum: Performance & Maintenance 30 Dec 2012
Replies: 72
Views: 4,888
Posted By westom
Any properly designed power supply, even many...

Any properly designed power supply, even many years before the original IBM PC existed, could not damage hardware. Due to many functions that make damage virtually impossible.

Heat ICs to ambient...
Forum: Performance & Maintenance 29 Dec 2012
Replies: 72
Views: 4,888
Posted By westom
Did your source provide numbers with that answer?...

Did your source provide numbers with that answer? Or just recite a popular old wive's tale? One who had to learn this stuff, read datasheets, designed hardware, and traced failures because each...
Forum: Hardware & Devices 13 Nov 2012
Replies: 6
Views: 672
Posted By westom
Protectors (cheap or expenisve), located too...

Protectors (cheap or expenisve), located too close to an appliance and too far from earth ground, may even make that appliance damage easier.

Protector located low impedance (ie 'less than 10...
Forum: Performance & Maintenance 27 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
You neither posted nor received one. Two cheap...

You neither posted nor received one. Two cheap shot artists make accusations and claims without facts. They insist power cycling does that damage.

Manufacturing defects, that you defined, are...
Forum: Performance & Maintenance 26 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Drive life expectancy is mostly defined by...

Drive life expectancy is mostly defined by manufacturing defects. Power cycling myths are disputed by even by specification numbers. Two posters who cannot defend their claims with facts, instead,...
Forum: Performance & Maintenance 24 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Most strain and stress occurs with each head...

Most strain and stress occurs with each head seek. Even that number is no longer specified because it is so large and now irrelevant.
Forum: Performance & Maintenance 24 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Power cycling does not affect light bulb life...

Power cycling does not affect light bulb life expectancy. Life expectancy - also called damage or failure - is well defined by facts with numbers. Even published in an IES Handbook. The light bulb...
Forum: Performance & Maintenance 24 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Power cycling damage to drives is a number that...

Power cycling damage to drives is a number that says why power cycling causes virtually no damage. Your question should be directed at others who make damage claims by ignoring perspective...
Forum: Performance & Maintenance 24 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Early transistors were rated by a number of...

Early transistors were rated by a number of switching cycles. As that number became large, then datasheets also dropped that specification. A number exists. But nobody cares.

100,000 power cycles...
Forum: Performance & Maintenance 23 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
All drives first learn about power off when...

All drives first learn about power off when voltage starts dropping. To a disk drive, power off is same whether from shutdown, by yanking the power cord, or by a nation wide blackout. Even when...
Forum: Performance & Maintenance 23 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Damage is due to starting and stopping. Most...

Damage is due to starting and stopping. Most aggressive and harmful starting and stopping is when heads move. Most drive platter damage is due to contamination even from wear of moving heads and...
Forum: Performance & Maintenance 23 Oct 2012
Replies: 72
Views: 4,888
Posted By westom
Start by learning manufacturer spec numbers; not...

Start by learning manufacturer spec numbers; not using feelings. Starting and stopping cause so much stress as to cause failures after ... 39 years. Did you read those numbers? Conclusions from...
Forum: Network & Sharing 15 Oct 2012
Replies: 1
Views: 2,032
Posted By westom
Don't expect a useful replly when you so...

Don't expect a useful replly when you so seriously short your help of valuable facts. For example, the router has many lights. Exactly which one is orange. And then quote the router manual where it...
Showing results 1 to 25 of 67

 
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