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Topic # 161988 26-Jan-2015 11:28
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Went to this computer this morning and it wont turn
light code suggests mb  or power supply issue

does anyone know if there is a fuse to check in the power supply?




Is an English Man living in New Zealand. Not a writer, an Observer he says. Graham is a seasoned 'traveler" with his sometimes arrogant, but honest opinion on life. He loves the Internet!.

 

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2895 posts

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  Reply # 1222305 26-Jan-2015 11:37
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There's a light on the rear of some of those PSUs, with an output test button

Does its own internal fuse like check if that helps. Leave power cable in but PC off, push button. Light on = checks OK. No light - poked supply.

Should also show a solid amber power light if 'power out good'

Got a standard PSU anywhere you can poach and confirm if it will spin up (or do they still use a horrid micro plug on the MB)



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  Reply # 1222407 26-Jan-2015 13:47
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ha! I didnt see that little button at the back when i have a power cord in and press the button nothing

so that you reckon means a "poked' supply

so theritically if I buy a new power supply I should be apples!




Is an English Man living in New Zealand. Not a writer, an Observer he says. Graham is a seasoned 'traveler" with his sometimes arrogant, but honest opinion on life. He loves the Internet!.

 

gnfb on trademe

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  Reply # 1222423 26-Jan-2015 14:18
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Weellll...


Open to interpretation :)

But if you still get startup lights but the BIST is dead, it could well be.

 

Customers can test the health of the power system by pressing the test button. The button is lit by a signal in the power

 

supply called Power_Good (PG). When the +3.3v, +5v, and +12v rails are up and within specification, the PG signal turns

 

on, lighting the self-test LED. By removing the cable harness in units that do not pass this test, you can isolate the

 

failure's cause to an attached device of the power supply. For example, if the self-test LED does not light when you press

 

the button, you can remove the connectors from the devices and tests again. If the PG LED now lights up, one of the

 

attached devices is shorted and holding down the power supply. If the LED does not light up, the power supply is

 

defective



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+1 received by user: 109


  Reply # 1222425 26-Jan-2015 14:19
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Ok fingers crossed i just bought a ps for a 760 which should fit for $20
from china ps $69NZD
from akl $109-$159
 complete box $189

will the computer gods look on me favorably?




Is an English Man living in New Zealand. Not a writer, an Observer he says. Graham is a seasoned 'traveler" with his sometimes arrogant, but honest opinion on life. He loves the Internet!.

 

gnfb on trademe

Email Me


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