What components to buy to get less noisy desktop?

I've got two desktops, and both make a lot of noise.

Are there power supplies (or fans) or something that is more quiet than others?

I could make a upgrade from regular harddrives to SSDs, I suppose. But that would entail a lot of tidying up on my harddrive, lot of copying.

 

fans and SSD would be a start.

there are cloning programs, now a days, that will make transferring your HHD's contents alot easier.

then u can get into better CPU/GPU cooling to help your overall ambient temp.

 

What setup do you have currently? That would give us a good idea of what we could change to make it more quiet.
Just some starters: air cooling vs water cooling. While water cooling (such as kraken x61, corsair h100i gtx, nepton 240m) does cool the cpu by a few degrees c, air coolers (such as be quiet dark rock 3, noctua nh-d14/15, cryorig r1 ultimate) are also quieter by 5-10 dbs. Speaking of fans, you could install some rubber mounts to limit the vibrations, or you could limit how fast the fans spin. If you have 120mm fans, upgrading to 140mm will also give off less noise, since bigger fans don't need to spin as fast to move the same amount of air. Also, a ssd is a lot quieter than a hdd, but I don't know how much storage you need, so If you're into that, that's an option. FYI, if you do convert to all ssd's, or use an ssd, make sure to back it up. Ssd's are very reliable, but if they break, you are basically screwed, all data will be lost unlike a hdd which can be recovered, so yeah, just a tip for the future.

 

if he's cloning his HDD's then he'll have a backup if his SSD's fail.

plus, SSD's will completely change his system(s) speed and responsiveness.

 

Geez... My bad, I was thinking "fresh" build for some reasons so I forgot that everything was on his hdd.

 

I've got two desktops. One (the most noisy) has everything on a HDD, the other has both SSD and HDD. But I was wondering about things to do besides getting a SSD, which is way I ended my post with that. I could've been more precise, I guess.

Can you tell more about this? Better cooling, as in less noisy cooling?

The newest computer is this unmodified Lenovo K450e. I am not sure how many fans there are, and what size those would be. It's bought about a half year ago.

Thanks for the point about water vs. air cooling. Then I'd definitely stick with air cooling.

 

Looking at a picture with the side panel off, there appears to be only one fan in the rear and the Intel stock cooler. From what I've seen, cooling temps increase the most when you add one front as an intake and one rear as an exhaust. One thing, If you plan on upgrading the Lenovo, is you'll need to find what case they've used (to check what mm fan the system supports, and if cpu temps are git and you want to get a better cpu cooler that it fits. I doubt water cooling would fit, but it's possible) and check the motherboard to see if there is another fan header so you can if you can toss in another fan. My guess is that the noise is mostly the Intel fan/ case fan and hdd, but there is a possibility that the gpu doesn't get enough airflow therefore ramping up the fan speed to max. That's my guess.

 

pretty much what dwang040 said.

i searched up the k450e and there doesn't seem to be any intake fans. i prefer positive air pressure -- meaning u have more intake than exhaust. the case does have those grills on the side, so i'm pretty sure u could rig up an intake fan there with a little bit of ingenuity. an intake fan right there will definitely help your CPU, GPU, and case temps drop. cooler temps = the less your fans will have to ramp up to expel heat.

there doesn't seem to be enough space for a GPU cooler, but measure your CPU area to see how much head room u have to work with. an aftermarket CPU cooler with a heatsink & fan setup will definitely drop those CPU temps some. Noctua makes some that come equipped with their super quiet fans: http://noctua.at/en/products/cpu-cooler-retail

 

There are PS that are just heatsink models that have no fan but that to me a no starter heat is a PS worst enemy. SSD would reduce noise alot and take less space. Also you can put noise foam inside the tower as well to reduce noise but if Desktop that would be alot harder to do. You can get fans that produce more cfm if they are bigger that how I did mine larger fan for cfm and less noise. These are you options for now unless you go all liquid cooling but then you got the fans to deal with as well so there is no absolute quiet system there will always be noise.