Question PSU wattage ?

[NigateloJones]

I'm planning to buy a new AIO for my CPU and I thought the Lian Li Galahad II Trinity Performance would be a great choice, but my question is if an EVGA 750w Platinum rated PSU has enough headroom for my PC?

CPU: Ryzen 5 3600 4.5 - 1.275 v with llc set to mode 2 ( using 135 w in full load all cores)
GPU: GTX 1080 Ti which i think rarely runs above 250w
RAM: 16GB 3800Mhz @ 1.35v

 

[Aeacus]

750 w plat rating evga psu

Model of the unit is? Also, how old the PSU is, and was the PSU bought new or used/refurbished?

gtx 1080 ti which i think rarely runs above 250 w

But do you also consider GPU transient power spikes?

Since GTX 1080 Ti can spike up to ~475W.
Source:

View: https://www.youtube.com/watch?v=wnRyyCsuHFQ


So, some math; GPU with 475W, CPU with 135W, rest of the system ~100W = ~710W.

That's way too close for comfort. Bare minimum 100W headroom is needed. 200W headroom is better. So, 850W or 1kW unit does better.

 

[NigateloJones]

Model of the unit is? Also, how old the PSU is, and was the PSU bought new or used/refurbished?


But do you also consider GPU transient power spikes?

Since GTX 1080 Ti can spike up to ~475W.
Source:

View: https://www.youtube.com/watch?v=wnRyyCsuHFQ


So, some math; GPU with 475W, CPU with 135W, rest of the system ~100W = ~710W.

That's way too close for comfort. Bare minimum 100W headroom is needed. 200W headroom is better. So, 850W or 1kW unit does better.

The exact PSU model is EVGA 750W SuperNOVA 750 P6 Fully Modular 80+ Platinum and it s almost 2 years old and I bought it brand new.

I forgot to mention that i m also running a Cooler Master MasterLiquid ML240L RGB V2 AIO.
i was not aware of the existence of the transient gpu spikes and did not take them into consideration.
Btw any idea how much does an AIO consume for the average user? The pump, fans and the overall wattage, take mine for example.
thank you

 

[Aeacus]

EVGA 750W SuperNOVA 750 P6

EVGA P6 is made by Seasonic and it's a good quality PSU. So, no worries about build quality.

i was not aware of the existence of the transient gpu spikes and did not take them into consideration.

Many aren't. Hence why i (and others) spread the word.

Btw any idea how much does an AIO consume for the average user? The pump, fans and the overall wattage, take mine for example.

Not enough to be concerned about.

But to enlighten you,
your AIO specs: https://www.coolermaster.com/en-global/products/masterliquid-ml240l-v2-rgb/?tab=tech_spec

Usually, it would be difficult to figure out pump's power draw, but some brands nicely tell it on the specs. Like Cooler Master with this specific AIO.
Pump - 2.36W
Fan - 12V at 0.15A = 1.8W

Since there are two fans, it would be 3.6W combined. Add the pump at 2.6W and total would be 6.2W.
As i said, not enough to be concerned about.

One simple formula to keep in mind: volts x amps = watts.

For 2nd test, let's take the Lian-Li AIO you listed,
specs: https://lian-li.com/product/galahad-ii-trinity-performance/

Specs doesn't say the pump wattage nor the fan amperage. Whereby only power source is SATA power connector. (Well, it also needs USB 2.0 internal header connection as well, for data. USB 2.0 at max, provides 2.5W.)
Now, SATA power connector, at max, can provide 54W. But that Lian-Li AIO will not be anywhere near that.

For more accurate power draw, you need to research the AIO, either by looking up reviews, in hopes the wattage is listed there. For fans, it would help if you can locate the pics of fan's rear side, to see the label. Since often, the fan label has the amperage rating listed. But if there's no label on the back of the fan, you can consider 6W max per 1 fan. Usually, 120/140mm fans are less. Most operate at 12V (some at 5V) and are usually less than 0.5A.

I wasn't able to find power draw (or amperage) ratings for that Lian-Li AIO. But when given that one fan is up to 6W, that would make up to 18W for 3x fans. AIO pumps are usually 5W ones. But some aftermarket pumps (e.g those that were sold by EKWB), required 12V, 2A headers on MoBo. So, those pumps did draw more than 12W, but less than 24W. But to be on the safe side, let's say pump is 24W. Now, add 3x fans at 18W and you'll end up 42W, which is well within the range of 54W SATA power connector. Add the LEDs with 2W-4W and maybe 44W-46W total.

Overestimating wattage consumption doesn't hurt, since it gives you headroom. But underestimating is dangerous.
Now, i don't think the Lian-Li AIO would pull anywhere near the 44W-46W i estimated, instead, it would be far less as a total. Maybe 10W, if even that. But to be on safe side, it is better to consider possible maximum because we don't have more precise info, other than SATA power connector and USB 2.0 connector for power.

 

[geofelt]

What is the make/model of your case and what is the fan arrangement?

Why do you think you need a cooling upgrade?
Has your current aio failed?
Are you heavily overclocking your cpu?

Your cpu will normally be cooled just fine with a decent air cooler.

 

[--SID--]

Upgrading to a Ryzen 5 5600 is cheaper and gains more than slamming a lot of money on a top notch aio!

The PSU is fine.

 

[NigateloJones]

EVGA P6 is made by Seasonic and it's a good quality PSU. So, no worries about build quality.


Many aren't. Hence why i (and others) spread the word.


Not enough to be concerned about.

But to enlighten you,
your AIO specs: https://www.coolermaster.com/en-global/products/masterliquid-ml240l-v2-rgb/?tab=tech_spec

Usually, it would be difficult to figure out pump's power draw, but some brands nicely tell it on the specs. Like Cooler Master with this specific AIO.
Pump - 2.36W
Fan - 12V at 0.15A = 1.8W

Since there are two fans, it would be 3.6W combined. Add the pump at 2.6W and total would be 6.2W.
As i said, not enough to be concerned about.

One simple formula to keep in mind: volts x amps = watts.

For 2nd test, let's take the Lian-Li AIO you listed,
specs: https://lian-li.com/product/galahad-ii-trinity-performance/

Specs doesn't say the pump wattage nor the fan amperage. Whereby only power source is SATA power connector. (Well, it also needs USB 2.0 internal header connection as well, for data. USB 2.0 at max, provides 2.5W.)
Now, SATA power connector, at max, can provide 54W. But that Lian-Li AIO will not be anywhere near that.

For more accurate power draw, you need to research the AIO, either by looking up reviews, in hopes the wattage is listed there. For fans, it would help if you can locate the pics of fan's rear side, to see the label. Since often, the fan label has the amperage rating listed. But if there's no label on the back of the fan, you can consider 6W max per 1 fan. Usually, 120/140mm fans are less. Most operate at 12V (some at 5V) and are usually less than 0.5A.

I wasn't able to find power draw (or amperage) ratings for that Lian-Li AIO. But when given that one fan is up to 6W, that would make up to 18W for 3x fans. AIO pumps are usually 5W ones. But some aftermarket pumps (e.g those that were sold by EKWB), required 12V, 2A headers on MoBo. So, those pumps did draw more than 12W, but less than 24W. But to be on the safe side, let's say pump is 24W. Now, add 3x fans at 18W and you'll end up 42W, which is well within the range of 54W SATA power connector. Add the LEDs with 2W-4W and maybe 44W-46W total.

Overestimating wattage consumption doesn't hurt, since it gives you headroom. But underestimating is dangerous.
Now, i don't think the Lian-Li AIO would pull anywhere near the 44W-46W i estimated, instead, it would be far less as a total. Maybe 10W, if even that. But to be on safe side, it is better to consider possible maximum because we don't have more precise info, other than SATA power connector and USB 2.0 connector for power.

i appreciate the help thanks a lot there are very few aio s with the wattage consumption displayed on the specs list

 

[NigateloJones]

What is the make/model of your case and what is the fan arrangement?

Why do you think you need a cooling upgrade?
Has your current aio failed?
Are you heavily overclocking your cpu?

Your cpu will normally be cooled just fine with a decent air cooler.

so i m running a deepcool v3 55 matrexx which supports up to 6 fans
the cpu aio is mounted in front for pulling the air
and also because i have the sc2 hybrid liquid cooled 1080 ti its radiator is also mounted in front with the same role
on the upper side i have 2 x 140 fans from bequiet and for the back i m running a 120 fan from thermaltake
i m planning to upgrade almost everything including the cpu, gpu,psu,mb,ram and the case and for now the budget can t serve me that well so the best option is to start from the bottom which would be the cooler
and to answer your oc question my aio did not fail and yes my ryzen is quite oc ed with 4.5 ghz and 1.3 v on llc mode 1 to be stable .

 

[geofelt]

What is your budget for all of the upgrades?
What is the time frame to accomplish this?
Modern processors are more efficient and do not need exotic cooling.
Do not upgrade your cooler until you have a new cpu or case.

Presumably your main use is for gaming.
Find out if you need more compute power, or if you need more graphics power.
Run YOUR games, but lower your resolution and eye candy.
This makes the graphics card loaf a bit.
If your FPS increases, it indicates that your cpu is strong enough to drive a better graphics configuration.
If your FPS stays the same, you are likely more cpu limited.

If you are cpu limited, upgrade the cpu. Better cooling and overclocking will give you negligible improvements.
If you are graphics limited, upgrade the gpu.
Modern graphics cards like a 4060ti are more efficient and should run on your 750w psu.