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Search: Posts Made By: ashiekh
Forum: Electronic Component Discussion 5 Hours Ago
Replies: 20
Views: 322
Posted By ashiekh
I thought Matsushita and Panasonic were now one

I thought Matsushita and Panasonic were now one
Forum: PC Power Supply Discussion 11 Hours Ago
Replies: 2
Views: 164
Posted By ashiekh
Clarification attempted with the inclusion of an...

Clarification attempted with the inclusion of an ATX voltage range and acceptable ripple; one can now see at a glance how closely it meets regulation.
Forum: General Hardware 1 Day Ago
Replies: 2
Views: 57
Posted By ashiekh
Overclocking the RAM is asking for trouble (41%...

Overclocking the RAM is asking for trouble (41% overclocking is more than a lot); don't forget that Memtest can't test all the RAM, the OS needs some.
Forum: PC Power Supply Discussion 1 Day Ago
Replies: 2
Views: 164
Posted By ashiekh
Review data

I am one who is not very good at seeing numbers, so was wondering if some of voltage data might be plotted, with ripple as error bars; I attach an example
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 4
Views: 181
Posted By ashiekh
A very good point, and I have old car headlight...

A very good point, and I have old car headlight bulbs (HB2/H4, 9003) where the low beam has burnt out, but the high beam is still in great shape; 60W each. Using a good bulb gives one a 115W load for...
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 0
Views: 87
Posted By ashiekh
Litz wire

I've seen at least one PC power supply use Litz Wire on the main transformer to avoid the skin effect, but now I wonder how common this is, or which supplies use it.
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 4
Views: 181
Posted By ashiekh
I thought about bulbs, but bulbs are very...

I thought about bulbs, but bulbs are very inefficient (~3%) so very little of the energy goes into light. A 12V heater might be best.
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 3
Views: 133
Posted By ashiekh
It was just that one person said the "Line...

It was just that one person said the "Line filtering parts don't get all that hot"
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 3
Views: 133
Posted By ashiekh
Are they measuring temperature

In the attached picture, just below D is what looks like a probe; are they measuring the temperature of the coil? (it seems to be tie wrapped on)
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
Without meaning to be insistent; found this at ...

Without meaning to be insistent; found this at

https://en.wikipedia.org/wiki/ATX#Power_supply

the "Interior view in an ATX power supply", looks like it might be using hot glue; but who knows...
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 4
Views: 181
Posted By ashiekh
12V load for burn-in testing

I have been trying to think of the best way to load a power supply for testing and was wondering if anyone tried using a 12V 120W immersion heater? (as low as $2.10 on ebay)
Forum: PC Power Supply Discussion 2 Days Ago
Replies: 3
Views: 219
Posted By ashiekh
If it is running that hot, I imagine the losses...

If it is running that hot, I imagine the losses are not trivial; I saw a supply using Litz wire in the main transformer to help counter the surface effect at high frequency.

Skin depth in copper...
Forum: PC Power Supply Discussion 3 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
Here is one ...

Here is one
...
Forum: PC Power Supply Discussion 3 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
Any hot glue variations suitable as electronics...

Any hot glue variations suitable as electronics goop?
Forum: PC Power Supply Discussion 3 Days Ago
Replies: 3
Views: 179
Posted By ashiekh
Industrial

I was wondering what sort of power supplies are used industrially and if any have been reviewed here.

Must admit the FSP Twins 500W Redundant ATX is fascinating (but fan noise could be an issue)...
Forum: PC Power Supply Discussion 3 Days Ago
Replies: 9
Views: 322
Posted By ashiekh
I didn't realize it was low performance and low...

I didn't realize it was low performance and low quality.

Guess if I need a 24/7 server I'll try to make the 2W ($2/year) Raspberry Pi stand in; trick there is to use a micro sd card that can take...
Forum: PC Power Supply Discussion 3 Days Ago
Replies: 9
Views: 322
Posted By ashiekh
Low power 80 Plus Titanium

Can one still get a 400W 80 Plus Titanium?

http://www.tomshardware.com/news/fsp-400w-80plus-titanium-psu,28266.html

Economy motivates high efficiency associated with a low power draw; I'm not a...
Forum: PC Power Supply Discussion 4 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
Capacitors, and I think jonnyGURU recently...

Capacitors, and I think jonnyGURU recently mentioned "The Corsair AXi series actually has a number of thermal sensors inside. But only one is reported by LINK because Corsair quickly discovered that...
Forum: PC Power Supply Discussion 4 Days Ago
Replies: 22
Views: 791
Posted By ashiekh
Internals for you

Internals for you
Forum: PC Power Supply Discussion 4 Days Ago
Replies: 22
Views: 791
Posted By ashiekh
3450W ...

3450W
...
Forum: PC Power Supply Discussion 4 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
The manufacturer could vacuum varnish coils...

The manufacturer could vacuum varnish coils against whine, but I had no idea there was a drop test.

Goop just looks so unprofessional, as well as hindering cooling.
Forum: PC Power Supply Discussion 4 Days Ago
Replies: 17
Views: 517
Posted By ashiekh
Goop

We have modular power supplies, we even have power supplies without internal wires... but the goop prevails. One might have thought they had figured out a better way by now.

I must confess that...
Forum: GPU Discussion 4 Days Ago
Replies: 11
Views: 1,329
Posted By ashiekh
This is scary stuff; I have a tendency to treat...

This is scary stuff; I have a tendency to treat contacts with silicone oil for better contact (even RAM).

One reason I recap old power supplies is that I don't like molex connectors; I guess I now...
Forum: Electronic Component Discussion 5 Days Ago
Replies: 5
Views: 291
Posted By ashiekh
Why has the LED got two resistors on it? And the...

Why has the LED got two resistors on it? And the rails should be 0V (neutral) and 230V (live)
Forum: PC Power Supply Discussion 5 Days Ago
Replies: 12
Views: 379
Posted By ashiekh
Most newer supplies can run without a load A...

Most newer supplies can run without a load

A paperclip is all you need to turn it on, and voltages can be measured from the back of the 24 pin connector
Showing results 1 to 25 of 135

 
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