New PSU for new PC or can use old one?

Belfor09

Junior Member
Apr 17, 2019
1
0
6
Hi there,
I want to buy a new PC (Ryzen 2600 + RTX 2060 + 16GB 3400mhz) and finally replace my i5 4460 and overclocked to the limit R9 270x 2GB.
I already said that I will re-use my older SSD and 1TB HDD + case and of course my Windows10.
Question is... Can I use my old, 5y old PSU for the new build as well? I want to save as much money as I can so I can fit these components in my build. Tight budget let's say.
Currently I have 5y old 550W Cooler Master G550m 80+ bronze unit which is right on the line of losing warranty (I think it will be lost in May).
I don't have any problems with it. Even full load while gaming it's completely silent and doesn't show any signs of being bad or something. I never drew full 550W from the wall tho (max was like 300W).

Is it perfectly fine to use old PSU? What do you think?
 

UsandThem

Elite Member
May 4, 2000
16,068
7,383
146
You can continue to use it as long as it's in good shape for sure, but the caps they used are definitely of a budget selection, so it would be something I'd peek in with a flashlight and make sure they aren't beginning to show any signs of failure(bulging caps). Additionally, since you already have 5 years of use on the unit so if you start experiencing odd crashes, or the PC refusing to boot up for a bit after a power down, I'd start the troubleshooting process with the PSU:

https://www.techpowerup.com/reviews/CoolerMaster/G550M/4.html
A synchronous design is used for the rectification of the +12V rail on the secondary side, and three SG65N0PFR fets handle this rail. The filtering caps here are mostly CapXon electrolytics, but we also found a single Jun Fu (not Kung Fu!) cap. CM apparently tried to save on cost here by going with such mediocre caps, which we didn't like, but it will ultimately be their problem if something goes wrong given they cover this product with a pretty long warranty.
 

bigboxes

Lifer
Apr 6, 2002
41,837
12,341
146
You can continue to use the old PSU, but I wouldn't. Save a little more $$ and buy yourself a high efficiency PSU.
 

mindless1

Diamond Member
Aug 11, 2001
8,724
1,737
126
I would either reuse it or if you don't have a spare PSU (essential to me at least) then buy a new one and keep that one as the spare.

Either way, since the warranty is up or nearly so, pop it open, clean the dust out, ,and check the capacitors for domed tops (sign of imminent failure). Edit: The large cap(s) on the high voltage side may have a plastic sheet on top that looks domed but the capacitor can itself is not).

Determine if it has a sleeve or ball bearing fan. If sleeve, gently peel the label back, pop the rubber plug off and lube it with a couple drops of very thick oil. If it's one of those newer (cheaper) sleeve bearing designs with no oil plug, replace the fan before redeployment.