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View Full Version : Weird noise from psu...

Zurb
11-24-2005, 06:52 PM
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 canīt fix it whatīs the best powersupply for <100€ I can get?
gerrynicol
11-24-2005, 07:01 PM
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* Ģ62.28


Tagan EasyCon 480-U15 PSU Ģ66.98

Gerry
Velocity
11-25-2005, 02:58 AM
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?
gerrynicol
11-25-2005, 06:14 AM
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
11-25-2005, 04:13 PM
u are running the bare minum psu for the x800 u should buy a 500 w or higher if u have a lot of componentshttp://www.sapphiretech.com/en/productfiles/21brochure.pdf
that is only the pro but the higher the card the more voltage it :rockout:
Zurb
11-25-2005, 10:19 PM
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 itīs called but it has 3 uv diodes in it
2* cold cathode uv

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

Iīve tried some calculators for dimensioning the psu and came up to ~400W

Thankfull for answers :D
Zurb
11-25-2005, 10:41 PM
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 ? Ģ - €
Tried google but nothing useful came up
gerrynicol
11-25-2005, 10:46 PM
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
11-26-2005, 01:40 AM
go here http://www.x-rates.com/calculator.html it is up- to date
Steven B
11-26-2005, 03:26 AM
look at the ocz powerstream 420 watter.
gerrynicol
11-26-2005, 07:55 AM
DR Death,

Um thats a currency calculation page!
DR.Death
11-26-2005, 05:21 PM
yes but it tells u the rates to ... if that is what u are looking for
gerrynicol
11-26-2005, 06:08 PM
:o oops I just read the other posts, my bad lol.

Gerry.
DR.Death
11-26-2005, 06:25 PM
lol
Zurb
11-28-2005, 06:45 PM
Thanks:D
Can someone explain atx 2.1 and 1.3 for me :cunfused:
I tried reading on the internet... but it didnīt make much sense to me

Thanks :D:D:D
Zurb
11-28-2005, 07:02 PM
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
11-28-2005, 10:17 PM
how old is the psu
Zurb
11-29-2005, 02:37 PM
The psu is one year old +- 1 month
Thermopylae_480
11-29-2005, 03:06 PM
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.
bikr692002
12-24-2005, 12:38 AM
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: