Comments on: ATX SMPS Test

By: Goh K S

Goh K S — Sat, 19 Jul 2014 13:45:47 +0000

Just a word of caution, computer power supplies can deliver very high currents especially for the +5V, +3.3V and +12V outputs.

NEVER SHORT ANY OF THE OUTPUTS!

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By: Humberto N. Rdguez.

Humberto N. Rdguez. — Tue, 12 Nov 2013 16:55:23 +0000

Well, let's take a little care with this test, because many times the SMPS can turn on but no video on Display. Sometimes it has happened to me.

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By: reychie canonigo

reychie canonigo — Wed, 23 Oct 2013 15:19:09 +0000

thank you Sir Yong

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By: Jestine Yong

Jestine Yong — Mon, 30 Sep 2013 01:27:21 +0000

In reply to GAGAN.

HI Gagan,

What have you checked in the atx power supply? Have you checked the filter caps?

Jestine

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By: GAGAN

GAGAN — Sun, 29 Sep 2013 07:37:24 +0000

i have a power supply when i check it will be start for on second and after that not start the computer pls help me sir

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By: amir mukhtar

amir mukhtar — Tue, 18 Sep 2012 23:58:00 +0000

Sir. with your permission i want to share my knowledge about in power supplies:
there are more than one types of power supplies. which have been using in computers and its allied equipments. Like,
1. AT
2. ATX
3. NLX
4. LPX
5. Special Type (Monopoly) Quad Processor Machine Power Supply. which only use in Super computers and Centeralize Data Computing Machines.
Thanks you
YOURS STUDENT
AMIR MUKHTAR ASHRAFI

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By: Jestine Yong

Jestine Yong — Thu, 23 Aug 2012 17:56:50 +0000

In reply to Dinesh.

Hi Dinesh,

Have you check all the components in the primary side? What about secondary output diodes?

Jestine

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By: Dinesh

Dinesh — Thu, 23 Aug 2012 01:02:59 +0000

Hi,
I have 300w smps now is daid. i check rectifire bridge geting 298 vdc, but not geting H.V plesse guied me

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By: Jestine Yong

Jestine Yong — Mon, 13 Aug 2012 18:59:12 +0000

In reply to Timothy Sutton.

Hi Timothy,

One need to open up and check. It can be any bad components that had caused the motherboard not working. Try check if there is any bad filter caps.

Jestine

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By: Timothy Sutton

Timothy Sutton — Sat, 11 Aug 2012 07:08:45 +0000

I have a Bestec ATA 400W power supply of two HP Media Centers... Both of them burned out within a week of each other

Do you have any idea what goes out in these? The led is on but no motherboard power.

Thanks,
Tim

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