psu problem

PowerSlide · 4th May 2008, 01:26 AM

MY bro in law bought a CM extreme power plus 430W psu

upon plug in everything and switch on the power at the wall socket the psu coming out with loud "teeeeeeeeeeee" kinda noise

bring back to shop exchange another one, back home still same loud noise..bring over my place and it run fine

so whats the cause of it? inteference? or his house wiring which is very old apartment

Adrian Wong · 4th May 2008, 01:36 AM

Do you have a voltmeter? Check the voltage of the socket supplying power to the PSU.

PowerSlide · 4th May 2008, 02:01 AM

dont think my bro in law have one

will getting those voltage regulator thing help?

Adrian Wong · 4th May 2008, 02:42 AM

Quote:

Originally Posted by PowerSlide

dont think my bro in law have one

will getting those voltage regulator thing help?

Well, we should first determine what the problem is.

When you tested at your place, did you just test the PSU or the PC?

Mac Daddy · 4th May 2008, 06:32 AM

Quote:

Originally Posted by Adrian Wong

Well, we should first determine what the problem is.

When you tested at your place, did you just test the PSU or the PC?

I agree with Adrian and as an electronics guy most failures trace to the source. Try a few things electronic on there if you don't have a voltmeter.

bslee · 6th May 2008, 12:21 PM

If 2 brand new PSU's exhibit the same problem, by elimination, the problem may be with your incoming voltage and earthing.
Check the socket have approximately 230-250V AC. Most PSU have a voltage selector 110VAC or 240VAC and the connection is hardwired. If you don't know how to check voltage, get a qualified electrician or knowledgeable buddy with voltmeter to do some tests. Electricity can be fatal if you're ignorant...beware.

PC PSU's are switching power supply circuits, they need the right AC voltage to operate correctly and don't tukang tukang inside. Its not transformer step down circuitry. There's very lethal and live voltages on one side of the circuit. Having said that, actually many PSU's can be repaired, only question is, is it economical?...many think not.

The_YongGrand · 7th May 2008, 01:05 AM

Quote:

Originally Posted by PowerSlide

MY bro in law bought a CM extreme power plus 430W psu

upon plug in everything and switch on the power at the wall socket the psu coming out with loud "teeeeeeeeeeee" kinda noise

bring back to shop exchange another one, back home still same loud noise..bring over my place and it run fine

so whats the cause of it? inteference? or his house wiring which is very old apartment

I know about it - I have a CM Extreme Power 430W there and the same buzzing sound persists even I exchanged it.

Later I think it might be the nature of the PSU. Btw, it could be the power socket - have you put a voltage regulator in between?

And sometimes the buzzing sound come but it'll go away eventually.

PowerSlide · 7th May 2008, 04:24 PM

he bring back to test w/o plugging in to his pc and still the bloody noise..so its the house problem now

he ask me how? i tel him 2 solution

1. move house

2. sell away buy other psu

he choose 2nd option

Adrian Wong · 7th May 2008, 04:55 PM

Quote:

Originally Posted by PowerSlide

he bring back to test w/o plugging in to his pc and still the bloody noise..so its the house problem now

he ask me how? i tel him 2 solution

1. move house

2. sell away buy other psu

he choose 2nd option

ROTFL!! So, the second option works???

Chai · 7th May 2008, 08:59 PM

What about a voltage regulator?

4th May 2008, 01:26 AM	#1 (permalink)
PowerSlide Super Active Join Date: 28 Aug 2004 Location: Penang, Malaysia Posts: 1,433 Reputation: 871 Rep Power: 15	psu problem MY bro in law bought a CM extreme power plus 430W psu upon plug in everything and switch on the power at the wall socket the psu coming out with loud "teeeeeeeeeeee" kinda noise bring back to shop exchange another one, back home still same loud noise..bring over my place and it run fine so whats the cause of it? inteference? or his house wiring which is very old apartment

4th May 2008, 01:36 AM	#2 (permalink)
Adrian Wong Da Boss Join Date: 10 Oct 2002 Location: In front of my ASUS F8V notebook! Posts: 32,208 Reputation: 3531 Rep Power: 75	Do you have a voltmeter? Check the voltage of the socket supplying power to the PSU. __________________ Dr. Adrian Wong Tech ARP \| Blog @ Tech ARP \| The Free Trade Zone DYKT : The only offshore account I have is at the sand bank? We need PROGRAMMERS and TECHNICAL WRITERS! Contact us if you are a hot shot programmer or technical writer! My items for sale : 50x SD Card \| Memory Stick PRO \| Cyclone Energy Saver \| Seiko SS watch \| Tiger/Carlsberg beer jugs \| Travel Speakers \| Motorola V600 \| Nokia N90 SOLD! \| New Lowepro Mini Trekker AW Other items for sale @ the FTZ : Zalman CNPS9500 LED @ $20 \| Zalman CNPS7700 Cu @ $20 \| Zalman CNPS7000 Cu @ $20 \| Swarovski bracelet watches \| Dell 17" LCD \| Hi-Fi speakers \| English DIVX movies \| HP LaserJet toners! \| Office chairs

7th May 2008, 08:59 PM	#10 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 27,870 Reputation: 4630 Rep Power: 81	What about a voltage regulator? __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

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4th May 2008, 02:01 AM	#3 (permalink)
PowerSlide Super Active Join Date: 28 Aug 2004 Location: Penang, Malaysia Posts: 1,433 Reputation: 871 Rep Power: 15	dont think my bro in law have one will getting those voltage regulator thing help?

6th May 2008, 12:21 PM	#6 (permalink)
bslee Getting there Join Date: 6 Feb 2005 Posts: 236 Reputation: 15 Rep Power: 5	If 2 brand new PSU's exhibit the same problem, by elimination, the problem may be with your incoming voltage and earthing. Check the socket have approximately 230-250V AC. Most PSU have a voltage selector 110VAC or 240VAC and the connection is hardwired. If you don't know how to check voltage, get a qualified electrician or knowledgeable buddy with voltmeter to do some tests. Electricity can be fatal if you're ignorant...beware. PC PSU's are switching power supply circuits, they need the right AC voltage to operate correctly and don't tukang tukang inside. Its not transformer step down circuitry. There's very lethal and live voltages on one side of the circuit. Having said that, actually many PSU's can be repaired, only question is, is it economical?...many think not.

7th May 2008, 04:24 PM	#8 (permalink)
PowerSlide Super Active Join Date: 28 Aug 2004 Location: Penang, Malaysia Posts: 1,433 Reputation: 871 Rep Power: 15	he bring back to test w/o plugging in to his pc and still the bloody noise..so its the house problem now he ask me how? i tel him 2 solution 1. move house 2. sell away buy other psu he choose 2nd option