Should I use an excellent old PSU or a lesser new PSU?

[Weak1ings]

I've been torn about this for a while and need some outside input, so here's the build I am building:

 

Background:

 

Upgrading from a 4790k, 32GB RAM, same GPU, to:

 

i7 13700k

NH-D15 Chromax

MSI Z690 Pro Motherboard

32 GB 5600 DDR5

RTX 3070 Ti

WD Black SN 850X 2TB

Intel 660p 2 TB (previous primary drive)

Master Case Pro 5 (is there any practical reason to change cases if size is no issue?)

 

 

The Question:

 

These are the power supplies I could use (and already own):

• EVGA G2 850W I've had for 7 years
• EVGA G5 750W I got from a newegg shuffle

 

Should I use the new Power supply or the old one and why?

 

I am currently leaning towards using the old one because it should continue to be a solid unit, has 3 years warranty, and the extra wattage is nice. It's possible that under an average load the fan on it won't even have to spin up too, though my new parts are going to push it harder than my previous ones.

[Spotty]

Either would be fine but the G2 is technically the better PSU of the two.

[Somerandomtechyboi]

35 minutes ago, Spotty said:

Either would be fine but the G2 is technically the better PSU of the two.

^^^

Either would indeed be fine, g2 just has a higher wattage rating

 

 

I may aswell just add some building tips too

1 hour ago, Weak1ings said:

NH-D15 Chromax

I just view these as obselete nowadays, great coolers but theyve been superceeded by cheaper or straight up better coolers like the ak620, fuma 2, peerless assasin 120/frost spirit 140, le grand macho, etc.

 

1 hour ago, Weak1ings said:

32 GB 5600 DDR5

Ideal ddr5 bin since it has limited futureproofing by oc to 6600-7000, useless if you dont intend to overclock them though so if you dont intend on oc stick to ddr4, and also ignore cas latency as that timing does not do shit for performance (actually ddr5 primaries are basically irrelevant vs the subtimings aside from being a marker as to what ic you may be getting)

 

1 hour ago, Weak1ings said:

RTX 3070 Ti

Rather weak gpu for the rest of the systems specs, i reccomend buying eithe r a used 3080 which goes ~600$ on ebay or used 3090 which goes ~800$ on ebay

 

1 hour ago, Weak1ings said:

WD Black SN 850X 2TB

Gen4 is useless garbage unless you do r/w heavy tasks like high res vid editing, you wont even notice the diff between lowend gen3 to highend gen3 most of the time for non r/w heavy tasks. Though there can be good deals on gen4 ssds such as the wd sn770, crucial p3/5 plus, gammix s70 blade, etc. If you do need the r/w speed of gen4

 

1 hour ago, Weak1ings said:

Master Case Pro 5 (is there any practical reason to change cases if size is no issue?)

If the case does all you need it to do and has good airflow no real reason to swap, and for the more user friendly case argument i say that youd likely not rebuild your current system more than twice so no point wasting money on something you arent really gonna take advantage of

[Popo576]

1 hour ago, Weak1ings said:

I've been torn about this for a while and need some outside input, so here's the build I am building:

 

Background:

 

Upgrading from a 4790k, 32GB RAM, same GPU, to:

 

i7 13700k

NH-D15 Chromax

MSI Z690 Pro Motherboard

32 GB 5600 DDR5

RTX 3070 Ti

WD Black SN 850X 2TB

Intel 660p 2 TB (previous primary drive)

Master Case Pro 5 (is there any practical reason to change cases if size is no issue?)

 

 

The Question:

 

These are the power supplies I could use (and already own):

• EVGA G2 850W I've had for 7 years
• EVGA G5 750W I got from a newegg shuffle

 

Should I use the new Power supply or the old one and why?

 

I am currently leaning towards using the old one because it should continue to be a solid unit, has 3 years warranty, and the extra wattage is nice. It's possible that under an average load the fan on it won't even have to spin up too, though my new parts are going to push it harder than my previous ones.

if any problems arise, check for cap bulge in the PSU (protect yourself from dying ofc) and do a cap replace. Mostly in power supplies the only thing that fails is the caps

[Zayed Says]

If your 

• EVGA G2 850W if its still under warranty, i would personally keep using it if its been used for usual gaming/work loads, having said that, if you've used it for 24/7 mining for 1+ years, I would shave off a good 3-4 years from its life span personally, and retire it.

[Weak1ings]

1 hour ago, Somerandomtechyboi said:

^^^

Either would indeed be fine, g2 just has a higher wattage rating

 

 

I may aswell just add some building tips too

I just view these as obselete nowadays, great coolers but theyve been superceeded by cheaper or straight up better coolers like the ak620, fuma 2, peerless assasin 120/frost spirit 140, le grand macho, etc.

 

Ideal ddr5 bin since it has limited futureproofing by oc to 6600-7000, useless if you dont intend to overclock them though so if you dont intend on oc stick to ddr4, and also ignore cas latency as that timing does not do shit for performance (actually ddr5 primaries are basically irrelevant vs the subtimings aside from being a marker as to what ic you may be getting)

 

Rather weak gpu for the rest of the systems specs, i reccomend buying eithe r a used 3080 which goes ~600$ on ebay or used 3090 which goes ~800$ on ebay

 

Gen4 is useless garbage unless you do r/w heavy tasks like high res vid editing, you wont even notice the diff between lowend gen3 to highend gen3 most of the time for non r/w heavy tasks. Though there can be good deals on gen4 ssds such as the wd sn770, crucial p3/5 plus, gammix s70 blade, etc. If you do need the r/w speed of gen4

 

If the case does all you need it to do and has good airflow no real reason to swap, and for the more user friendly case argument i say that youd likely not rebuild your current system more than twice so no point wasting money on something you arent really gonna take advantage of

Just so you know I have already bought all of these things, most at different times, I'll address each comment though:

 

CPU cooler, Honestly I didn't check others but I chose it because I'm confident that Noctua will support this thing in the future too, I currently use a Cryorig H5 Ultimate and apparently the company is gone? Their support never responded and a lot of products are incorrectly priced for what they are (as if they are not being produced?) For anyone reading this, there are a ton of great options out there indeed! Please check them out.

 

RAM: Yup, DDR4 is the better value; I chose DDR5 because I intend to keep this build as long as I kept my 4790k, maybe things will use the higher bandwidth someday? It's impossible to know for sure and DDR4 is a solid choice. As far as speed goes, I wanted a slightly faster kit with similar cost to the cheaper kits, but DDR4 is still half the price so it's very difficult to recommend DDR5 generally.

 

GPU: I've had this since January, and your recommendation is very good for people looking to buy one! For my case I expect to probably upgrade to a RTX 5070 or similar, which obviously doesn't exist yet, this build is a CPU upgrade!

 

SSD: I wanted to upgrade from a dram-less Intel 660p QLC which very easily bogs down to 140 MBps, (though still has higher bursts) This seemed good but and I really wanted to try "the fast stuff." Your recommendation is good for other, cheaper drives. Just please get one with decent cache!

 

Case: Good to know, ease of building is probably the only practical reason (and GPU compatibility) to have upgraded from the old Antec 900 this i7 build was originally in, I imagine everyone has a different upgrade cycle so here's mine:

 

 

Q6600 -> SSD -> 4790k -> GTX 660 -> EVGA G2 -> GTX 660 SLI -> MasterCase Pro 5 -> GTX 1070 -> 32 GB RAM (since it was ceasing to be sold) -> 660p M.2 drive -> RTX 3070 ti -> the above build.

Obviously over many years, hope you find this interesting!

[NobleGamer]

As someone who has an Antec 7 year old 750W PSU that blew up (pop+smoke) despite a peak load of only 400-500W, I don't recommend it. I dont have a spare PSU to know whether it fried my now old system or not.

 

Using an old PSU is like the game of Press Your Luck, except there are no cash & prize rewards if you dont hit a whammy, but if you hit a Whammy, you will lose your PSU, and possibly part or all of your system.