I can only recommend the manufacturer's power supplies, Those looking for good power supplies, which is making a non-deaf with these well bedient.Ich had a little trouble with my computer and looked for a new power supply so I was not from colleagues on the seller verwiesen.Wer white which PSU is right for him, may on the HP of a provider Use computer which shows a much watts you need.
I can even sleep next to my computer so quiet it has become, what has always kept me awake before.