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Weird noise from psu...

Zurb

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#1
Hi I have a problem when I stress my computer ( both gfx and cpu ) example 3dmark
I get a whineing noise from my psu. It has been that way all since I changed my gfx from a 9800 se to a x800 xl ....
The psu is a 350W:
single 12V rail @ 18A
3,3V @ 28A
5V @ 40A

I heard it could have something to do with a filter in my psu :confused:
Can I fix it? Is it dangerous? If i can´t fix it what´s the best powersupply for <100€ I can get?
 
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#2
You may need to up the wattage a bit, also go for a bit more amperage on the 12v line.

www.kustompcs.co.uk
OCZ Technology ModStream 450W PSU *Sale at the momment* £62.28


Tagan EasyCon 480-U15 PSU £66.98

Gerry
 

Velocity

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#3
it could be that the sensor in your psu for the fan is acctivating when the psu gets hot (when running 3dmark) so maybe a noisy fan because eating more power for the gfx card?
 
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#4
Can you list all your hardware, I mean everything down to usb printer if you have one. Then we can see how much juice you are using and how much you may need.

Cheers

Gerry.
 

DR.Death

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#5

Zurb

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#6
gerrynicol said:
Can you list all your hardware, I mean everything down to usb printer if you have one. Then we can see how much juice you are using and how much you may need.

Cheers

Gerry.

Okey...

CPU amd athlon 64 (s754) 2800+ 1,8Ghz @ 2,4 Ghz 1,65
MOBO Abit Kv8-pro 3rd-eye
RAM 2 sticks 512 ( a-data and elixir )
FDD 1 * ????????
HDD 1 * western digital 160gb ide
1 * Maxtor diamondmax maxline 3 250gb sata
OPTICAL 1 * cd burner LG
1 * cd/dvd burner Samsung
Fans 3 * 80mm
3 * 120 mm
1 * 60mm
Lights 1* Dont know what it´s called but it has 3 uv diodes in it
2* cold cathode uv

mouse logitech mx1000 usb
keyboard logitech (ordinary... no media keyboard)

I´ve tried some calculators for dimensioning the psu and came up to ~400W

Thankfull for answers :D
 

Zurb

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#7
gerrynicol Thanks for the advice:D much cheaper than here in finland (i think)
Does anyone know where to find currency values (up to date) on the net ? £ - €
Tried google but nothing useful came up
 
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#8
I get a little over 350 watts your using at the momment, go for a good quality 400 - 500w supply with plenty amperage on the 12v line and youll be fine.

Gerry.
 

DR.Death

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Joined
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Location
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Processor Core i7-920 4.0Ghz
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Case Coolermaster HAF
Audio Device(s) Auzentech X-Fi Prelude, logitech Z5500
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#11
DR Death,

Um thats a currency calculation page!
 

DR.Death

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#12
yes but it tells u the rates to ... if that is what u are looking for
 
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#13
:eek: oops I just read the other posts, my bad lol.

Gerry.
 

DR.Death

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#14
lol
 

Zurb

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#15
Thanks:D
Can someone explain atx 2.1 and 1.3 for me :cunfused:
I tried reading on the internet... but it didn´t make much sense to me

Thanks :D:D:D
 

Zurb

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#16
Velocity said:
it could be that the sensor in your psu for the fan is acctivating when the psu gets hot (when running 3dmark) so maybe a noisy fan because eating more power for the gfx card?
Forgot to reply
I dont think so ,I recognize fan noise (I have plenty, and I tried switching the fan to full constantly). Can you think of anything else it could be ?
The sound is high frequent.... Dont know how to explain it...

Anyway thanks for the answer :D
 

DR.Death

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#17
how old is the psu
 

Zurb

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#18
The psu is one year old +- 1 month
 
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#19
I guess they just don't make Power supplies like they used to. So many PSUs seem to last only half a year to maybe two. I have a 75 watt from a computer that is nearly eight years old. The computer has been booted up nearly everyday since I bought it, and I have never had a single problem. I guess it could just be that higher performance parts just don't last as long though.
 
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#20
Zurb said:
Forgot to reply
I dont think so ,I recognize fan noise (I have plenty, and I tried switching the fan to full constantly). Can you think of anything else it could be ?
The sound is high frequent.... Dont know how to explain it...

Anyway thanks for the answer :D
I had that also, I cupped my hand over the rear power supply fan for like 5 minutes and haven't had a problem since, I felt like Moses.. :laugh: