The Ampere RTX 3090 Owners Thread

[Tiny_D]

I was chuffed with it until it started playing up - it's an impressive piece of kit. I'm hoping it's the PSU although an HX850 should be ok I would have thought. I'll try and source another one in the next couple of days to try.

My 1200w EVGA crapped out on the 3090, my wall socket draw is less than 600w benching so Im guessing its the way the power is drawn to the GPU that causes PSU's to trip out.
Im having to run a second 500W PSU to the 2nd gpu rail plug while waiting EVGA to even reply to my support ticket. 5 day's nothing.... Then there gonna want to RMA it (Again!).

I would suggest getting another PSU to try first or a second PSU to split the load into the GPU.

 

[dazbo1]

My 1200w EVGA crapped out on the 3090, my wall socket draw is less than 600w benching so Im guessing its the way the power is drawn to the GPU that causes PSU's to trip out.
Im having to run a second 500W PSU to the 2nd gpu rail plug while waiting EVGA to even reply to my support ticket. 5 day's nothing.... Then there gonna want to RMA it (Again!).

I would suggest getting another PSU to try first or a second PSU to split the load into the GPU.

Good idea, thanks!

 

[Distracted]

Since i have the same model as you. It would be interesting to know how this card behaves under water . tempted

This should be a bit more useful than my last response of 30s and 40s. I ran port royal at 4k all settings maxed on a loop for a couple of hours and the max temp seen on the GPU at the end was 43 degrees C. Ambient 19. Fan profile is set for silence over performance and there are 2 tx360 slim rads in the loop with a single d5 and a 9900k.
The GPU isn't overclocked in any way right now, just stock straight out the box with a waterblock.
Hth.

 

[Tiny_D]

This should be a bit more useful than my last response of 30s and 40s. I ran port royal at 4k all settings maxed on a loop for a couple of hours and the max temp seen on the GPU at the end was 43 degrees C. Ambient 19. Fan profile is set for silence over performance and there are 2 tx360 slim rads in the loop with a single d5 and a 9900k.
The GPU isn't overclocked in any way right now, just stock straight out the box with a waterblock.
Hth.

You seen that M5 back plate water block? As the 3090 thermal pads connect the back plate to the memory would be worth at this stage adding the rear water block for £90?
Seen a guy running his 3090 with one pumping 800w through the card so it's strong

 

[Distracted]

You seen that M5 back plate water block? As the 3090 thermal pads connect the back plate to the memory would be worth at this stage adding the rear water block for £90?
Seen a guy running his 3090 with one pumping 800w through the card so it's strong

I touched the back to see if it gets hot, it does. I'll let you know more when I get back from the burns unit.

 

[kipperthedog]

 

[Distracted]

What’s in that build?

 

[kipperthedog]

What’s in that build?

10900K, 32GB 3600 DDR4, Kraken X63, 1 TB NVMe, 2TB NVMe, 2 TB SSD, Corsair SF750 PSU, 4 Noctua fans - all snugly encased in an Corsair NR200 ITX case. Plus the Galax 3090 SG of course.

You can slide a sheet of A4 between the bottom slim line fans and the Galax, but only just. The cabling is a mess.

 

[Distracted]

10900K, 32GB 3600 DDR4, Kraken X63, 1 TB NVMe, 2TB NVMe, 2 TB SSD, Corsair SF750 PSU, 4 Noctua fans - all snugly encased in an Corsair NR200 ITX case. Plus the Galax 3090 SG of course.

You can slide a sheet of A4 between the bottom slim line fans and the Galax, but only just. The cabling is a mess.

The NR200 is getting more and more appealing, I didn’t even notice the cables tbh. How are temps?
Are those fans on the bottom on intake or exhaust?

 

[archerz]

I'm a bit out of the loop with overclocking, i see lots of mentions of undervolting for better performance.

Anyone can recommend a guide to ready to get the most out of these cards?

TIA

 

[kipperthedog]

The NR200 is getting more and more appealing, I didn’t even notice the cables tbh. How are temps?
Are those fans on the bottom on intake or exhaust?

Temps are pretty good actually. The CPU idles at about 7 above ambient and the GPU at about 10. Depending on the level of overclock I use CPU peaks between 72 (4.9GHz) and 92 (5.3GHZ) in stress tests. GPU with an under volt/overclock of 862mV/1860MHz peaks between 63 - 72 depending on fan settings (80% - 40%).

I have the bottom 15mm fans and the rad as intake, and the 25mm noctuas up top as exhaust. I use the metal panel, not the TG.

The NR200 is great, it's easy to build in 'cos the whole thing disassembles completely - 280 mm rads are a pain though, the tubes are difficult to manage in such a small space, and the barbs on the CPU block make my RAM lean back in its socket alarmingly (with the Gigabyte Z490I Aorus Ultra anyway, other M/B's might be better)

 

[kipperthedog]

I'm a bit out of the loop with overclocking, i see lots of mentions of undervolting for better performance.

Anyone can recommend a guide to ready to get the most out of these cards?

TIA

Optimum Tech https://www.youtube.com/c/OptimumTech/videos has a couple of useful (and brief) videos on undervolting - https://www.youtube.com/watch?v=FqpfYTi43TE is 30xx series specific, and https://www.youtube.com/watch?v=zUkPAVcb9Xc is a more general look at undervolting. I'd watch the second one first if I were you.

In general you should be undervolting about 100mV from stock for a 3090 I have found (in my vast experience of 2 3090's). I have had better performance by getting my clocks stable, rather than high. If you have your temps under control then your clocks will drop when you exceed your power budget. The more you undervolt, the more power headroom you have, the more stable your clocks will be. I got a pretty decent result in the timespy thread with my frequency maxed at 1875 (boosts excepted) by setting my undervolt to 862 mV.

The more you can slide your power over 100% the less likely you are to drop frequency, but you need higher voltage and of course everything gets hotter and then thermal throttling comes back in to play. It's kind of fun to play with but can be a bit of timesink if you are trying for high scores. But for general day-to-day low temps and reasonable performance gains (particularly in small form factor cases) it is awesome (as Ali would say).

 

[archerz]

Optimum Tech https://www.youtube.com/c/OptimumTech/videos has a couple of useful (and brief) videos on undervolting - https://www.youtube.com/watch?v=FqpfYTi43TE is 30xx series specific, and https://www.youtube.com/watch?v=zUkPAVcb9Xc is a more general look at undervolting. I'd watch the second one first if I were you.

In general you should be undervolting about 100mV from stock for a 3090 I have found (in my vast experience of 2 3090's). I have had better performance by getting my clocks stable, rather than high. If you have your temps under control then your clocks will drop when you exceed your power budget. The more you undervolt, the more power headroom you have, the more stable your clocks will be. I got a pretty decent result in the timespy thread with my frequency maxed at 1875 (boosts excepted) by setting my undervolt to 862 mV.

The more you can slide your power over 100% the less likely you are to drop frequency, but you need higher voltage and of course everything gets hotter and then thermal throttling comes back in to play. It's kind of fun to play with but can be a bit of timesink if you are trying for high scores. But for general day-to-day low temps and reasonable performance gains (particularly in small form factor cases) it is awesome (as Ali would say).

Awesome, thanks will take a look. I was playing around and just running heaven adding clock and it went up to 250+ so i wasn't sure that felt right...

 

[Distracted]

Temps are pretty good actually. The CPU idles at about 7 above ambient and the GPU at about 10. Depending on the level of overclock I use CPU peaks between 72 (4.9GHz) and 92 (5.3GHZ) in stress tests. GPU with an under volt/overclock of 862mV/1860MHz peaks between 63 - 72 depending on fan settings (80% - 40%).

I have the bottom 15mm fans and the rad as intake, and the 25mm noctuas up top as exhaust. I use the metal panel, not the TG.

The NR200 is great, it's easy to build in 'cos the whole thing disassembles completely - 280 mm rads are a pain though, the tubes are difficult to manage in such a small space, and the barbs on the CPU block make my RAM lean back in its socket alarmingly (with the Gigabyte Z490I Aorus Ultra anyway, other M/B's might be better)

Good to know, thanks!

The NR200 is definitely top of my shortlist for a sff build. Not that I'm making one, but if I do it is the case I'd like to use.

 

[KillBoY_UK]

My 1200w EVGA crapped out on the 3090, my wall socket draw is less than 600w benching so Im guessing its the way the power is drawn to the GPU that causes PSU's to trip out.
Im having to run a second 500W PSU to the 2nd gpu rail plug while waiting EVGA to even reply to my support ticket. 5 day's nothing.... Then there gonna want to RMA it (Again!).

I would suggest getting another PSU to try first or a second PSU to split the load into the GPU.

oh dear, I have Seasonic FOCUS Plus Platinum 850W with a EVGA rtx 3090 XC3 ultra comming and a little worried lol

edit its here now but working

 

[Doug2507]

I've got an evga 1200 plat I've run for the past 2-3 years. Never had an issue with it and zero problems running 3090.

 

[Hakanese]

sometimes the psu's just crap out. I'm running a 6yr old enermax 1000W as my 1000w superflower psu was sold to a friend

 

[Kaapstad]

https://www.techpowerup.com/275515/...ks-for-evga-rtx-30-series-ftw3-graphics-cards

 

[Nerusy]

I am using my 8-year old Corsair Professional Series AX 850W with my 3700x CPU and 3090FE.

I wonder if I am putting my whole system at risk but there have been no issues with the PSU so I dont replace it.

 

[Kaapstad]

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