Question hi how to diagnostic where the high pitch sound comes from my ssf and how to fix it with the piece below i have or with little money purchase.

human

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Sep 7, 2009
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Hi

i do have a ssf computer( hp elitedesk 800 g1 ssf ssd 500 samsung 860evo 8gb ram) that makes a high pitch sound that more than annoys me, i fear it is affecting my earing. it is not the hdd since i have a ssd.

Now i do have some pieces already that could be usefull to do something:
-aAntec P183 ATX Tower Case Black 11 Drive Bay 4X5.25 1X3.5 6X3.5INT No PS Front USB & Sound
-4 x 120 mm noctua fan (2 x nfp12 and 2xnfs12b)
- Antec CP-850 850W Cpx Dual Pcb Power Supply Modular ATX12V V2.3 80PLUS Active PFC SLI 120MM Fan

So here are my questions if someone can help me to releive myself without adding to much money.

1. How to identify wich piece in my ssf is making the unwanted sound ( maybe Powersupply, maybe the mother board does the sound? maybe something else.) how to pin point? would it help to give you a picture of the inside of my ssf?

2. Can i install (using screws ) my ssf pc in my p183 antec silencer case? if yes will the back plate need to be removed because there are many usb port that are usefull to me .

3. is my 850 compatible with the rest of the computer ?

4. what would you do in my situation?
 
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To find the noise use a paper towel tube , cardboard tube. rolled up piece of paper .
Place it over one ear and slowly move it around inside the open case.
Wherever the sound is the loudest is the culprit part.
Your motherboard appears to be ATX so moving it to the Antec case should work. But the board appears to be 12v only so your power supply will not work without adaptors.
 
Why do you want to move the contents of your SFF computer into the Antec case.

Are you trying to fit a new hard disk and the HP SFF case is too small?

The high pitch squeal might be coil whine, coming from the PSU or the GPU. We can't tell where the noise is coming from by looking at pictures.

https://www.howtogeek.com/297166/what-is-coil-whine-and-can-i-get-rid-of-it-on-my-pc/

If your HP PSU is a proprietary12V-only design, you cannot replace it with a standard ATX PSU, unless the wiring of the power connectors is 100% compatible. Get it wrong and BANG, dead computer.

If you transfer the motherboard into the Antec case and the stand-off locations are different, BANG, dead computer.

Do NOT open the PSU and attempt to fix it.
Do not poke any objects through the slots into the PSU.
LETHAL voltages exist inside mains power supplies.
Touch the wrong parts inside and you're DEAD.

In your situation I'd leave well alone and put on a pair of headphones, to drown out the high pitched noise.

You've got a good collection of parts. Have you considered buying a motherboard + CPU to build a new computer?
 
I will have to open the pc and look listen and take picture.

Why do you want to move the contents of your SFF computer into the Antec case..
-because the case is a antec and supposed to help with sound reduction. I hope it will be possible to screw the mobo on existing place in the antec case. no ssd hdd change no.
there is no dedicated Gpu .

Have you considered buying a motherboard + CPU to build a new computer?

the parts have 12 years of usage. people told me it could damage the new pc part if i use the 850 antec psu (wich is build to last from what i read)

in general the pc atmo does all i want and i have no activities comming up that justifies investment. Now how much would cost a replacement mobo that would accept my antec power supply?

If your HP PSU is a proprietary12V-only design, you cannot replace it with a standard ATX PSU, unless the wiring of the power connectors is 100% compatible. Get it wrong and BANG, dead computer.

-how can i verify by looking at the mobo or the PSu if it is an hp psu or other?
 
I was thinking you could get a second hand mobo and cpu to match the assorted old parts. Of course buying second hand is risky, but most of the boards I've bought on eBay have been fine.

You could read the label on the PSU. If it says Delta, it's not made by HP. Compare the size and shape of your PSU and compare it with your ATX PSU. Are they the same?

Look at the motherboard. Locate the part number and look for it in Google. It might be a special card made for HP by Intel. With a bit of hard work you might be able to work out if the hole spacing is standard microATX or ATX.
 
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