Discussion in 'Video Cards & Monitors' started by Sphinx2000, Sep 1, 2020.
RTX 3080 users with less than the 750W recommended PSUs, what voltages and clocks are you running?
i think i may be the only one here, but the 3080 Gaming OC is not currently in the 3700x, has a 1080 Ti in it (ITX system with CPU and GPU watercooled)
Colorful 3080 and block hopefully arriving next week.
The colorful should be heavier on the PSU then the Gaming OC was, as the Gaming OC was only 2x8 pin power, where as the colorful is 3x8 pin power.
Once all up and WC'd, will se exactly how far i can push it, and see if this 650W limits it at all. I know the voltages will be fine, only question is the wattage.
Looking forward to it mate. Wondering if I should give up this silly mini-ITX business since it was a struggle alone to fit my RTX 2080 Ti in a fairly sizable Silverstone RZV01. I can't imagine what it would be like to see a bigger RTX 3080 in it, or the smaller cases I have my eye on. Would allow me to break from the shackles of SFX PSUs as well
Have managed to put +300mhz on RTX 3090 GPU core (it already has a boost of 1755Mhz using bios 1) & plus 600mhz on memory... but it doesn't seem to make a huge difference on results in time-spy to be honest.
At idle the gpu temp is 30C with no fans active.
Maximum temp i see in benchmarks is very low 60C's.
Rig details in sig below.
Not keen to change bios's yet & unfortunately the app software from Igame has no overclocking utility as far as i can tell, currently playing with msi after burner, with furmark to stress gpu.
I wonder if the results of standard vs oc settings are more limited by the 370watt tdp of the card more than anything else?
i use ITX (but thats debatable, the Caselabs Mercury S3 is not a small case, and fits full SIZE PSUs, triple slot GFX cards, 280mm and 240mm rad, + 2 3.5" HDD and 4 x 2.5" SSD)
Even supports DTX (which the Crosshair impact is).
But if you want SFF ITX, then the S3 is not for you, as its big. Bug i love them, anything caselabs tbh, shame they went bust!
ETA on the colorful is 26-27th, and ETA on the bysksi block is 29-30th. So with any luck will have it next week!
Could be Christmas too haha...
all the gimped models capped at 320watt should work on a 600w. Wouldn’t do it tho yuk
I am going too id rather my 650w ti PSU then some of the 750w/850w/1000w crap PSU's out there.
if its not enough then ill find out, then ill just buy a new one, no biggie. or go red team to use less power.
Im a betting man, ill bet i max out the 3080 colorful clocks where it cant be OC'd higher, before i max out wattage on my 650W
3700x (65W) with Colorful 3080 (320W) -- Dont think i am going to hit any where near 550W, let alone 650w!
Then repeat on my 1000W 80+ plat to show PSU didnt make a difference
At one point, I was considering those extra tiny 5L enclosures with PLEX PSUs with an RTX 3080. The idea of squeezing so much power into the smallest case possible just got me *moist*. I know that was just too silly and obscene though.
3070 order tracking sheet on WP is now live: https://docs.google.com/forms/d/e/1FAIpQLSfT3pUjZ72W973iip87_yvebveG_BymjTqIRdTEi2FveCMcjQ/viewform
Get ready for the MWave 3070 raffle for your chance to win an invitation to order one
yeah shouldn't be a problem on the standard Bios it’s 320watt and oc is 340
Ahem.... my setup below (when I get my 3080), not particularly exotic:
i cant say i trust many of these power calculators
i have OC 3700x. 2 x 240mm rads. d5 pump. 1080ti ddr4oc. 3 screens. 1x8tb hdd and 1x1tb ssd. works fine.
and worked fine for the gaming oc 3080 as well.
again psu quality going to be important.
will see how it goes with the colorful 3080 ultra when ocd. but this system with 1080ti is only pulling 430w average at present
people do realise that there is an efficiency curve for each PSU right ? most of the PSUs are most efficient under 50% load thereabouts, also I would rather have over spec. PSU running silent, than running it at or near its limits...
At the end of the day we're all enthusiasts here, run your own calculations and make a decision for yourselves. There are people who have done that and made PSUs under the nvidia recommended spec work for them, and people who are finding they need more than the recommended spec for their systems and use cases. No one size fits all, we're not playing with consoles
now im insecure brb buying 1600W PSU....
Bigger doesn't always mean better!
Is that creative and reasonable thinking? No sirs, we cannot allow that. Our corporate overlords simply will not allow that.
I just did a very basic system RTX 3080 ( 1951mhz) 3700x 4.1ghz , 6x 120mm fans, 1x Mvme ssd, 3 ssd, gaming kb/m and the apps recommend a 620w PSU.
Yeh they’re fun for a bit but too much compromise - I put in a preorder for O11D-Mini @ scorptech. Allows up to 2 x 360 rads and 1 x 280 >< Should be enough for some good overclocking fun. But the case is limited to SFX and SFX-L supplies - but beefy ones coming out next month from cooler master i think
As i said, i dont trust these calculators.
but if i was buying a PSU or building a new system to use with a 3080+, there is no way id use a 650W, even a 750W PSU.
But since i have a 650W, and arguably the best 650W, it should be fine. again depends on OC, depends on a number of things.
Definitely do not recommend a 650W PSU, but no reason it cant work on one. if i had an issue with it i would sell the PSU, but given how expensive it is new, i doubt id get a price id be happy for it.
Silverstone releasing a 1000W SFX power supply soon