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Anyone recommend a good PSU for my new 1080 Ti?


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Greetings,

 

 

I just got a Zotac 1080 Ti Amp Extreme Core Edition card, and my computer keeps crashing :) Read on.

 

 

My system was fine with my old 1070, but the new 1080 Ti uses a lot more power. It's fine if i set the power limit to about 60% in MSI Afterburner, but then it performs like a 1070 :) I'm still using my cheap old Rocketfish 500W PSU, which is probably really inadequate (18A per 12V rail, 2 rails).

 

 

 

When I have the power limit set higher than that, my PC crashes, and it reboots with a warning that my Asus Z170 mobo has detected a power supply fluctuation and has shut down. Everything works normally on restart. Checking the PSU 12V supply in AIDA64 shows the voltage dropping to 11.8V under load, and the graphics card's funky LED lights all turn red.

 

 

 

Can anyone recommend a PSU for this beast of a card? I figure it'll be around 750-800W rating.

 

 

AD

Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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Do you have a garbage can at home? I can give you the instruction about the Rocketfish if you want. You have a hammer? I mean, a big one?

 

 

Hehehe actually, I usually take them apart and put all the bits & pieces into a set of little plastic drawers, 'cause sometimes I can build something out of them. I actually built a 1.5HP DC motor controller with tacho feedback for my father's milling machine using mostly old PSU parts.

 

The power transistors and rectifiers are nifty too. I have a huge pile of 'em stashed away somewhere. I've dismantled a *lot* of old PSUs :)

 

 

AD

Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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Did you check your power demand?

 

 

https://outervision.com/power-supply-calculator

 

 

Yep, it sez I need about a 650W PSU.

 

 

So, that means I need an 850W one or the sucker crashes :)

 

 

AD

Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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Always add some "extra" wattage on top.

 

Once you are forced to run stresstests to find a misbehaving part you will love the extra juice.

 

It's not for 24/7, it's for those dire hours past midnight when Murphy's Law comes around the corner.

Gigabyte Aorus X570S Master - Ryzen 5900X - Gskill 64GB 3200/CL14@3600/CL14 - Asus 1080ti EK-waterblock - 4x Samsung 980Pro 1TB - 1x Samsung 870 Evo 1TB - 1x SanDisc 120GB SSD - Heatkiller IV - MoRa3-360LT@9x120mm Noctua F12 - Corsair AXi-1200 - TiR5-Pro - Warthog Hotas - Saitek Combat Pedals - Asus PG278Q 27" QHD Gsync 144Hz - Corsair K70 RGB Pro - Win11 Pro/Linux - Phanteks Evolv-X 

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I agree on extra wattage. My power demand check on my 1080ti new build in August said I needed 750W minimum. I went ahead and put in a 1000W in case I add any additional components in the future.

 

:thumbup:

Gigabyte Aorus X570S Master - Ryzen 5900X - Gskill 64GB 3200/CL14@3600/CL14 - Asus 1080ti EK-waterblock - 4x Samsung 980Pro 1TB - 1x Samsung 870 Evo 1TB - 1x SanDisc 120GB SSD - Heatkiller IV - MoRa3-360LT@9x120mm Noctua F12 - Corsair AXi-1200 - TiR5-Pro - Warthog Hotas - Saitek Combat Pedals - Asus PG278Q 27" QHD Gsync 144Hz - Corsair K70 RGB Pro - Win11 Pro/Linux - Phanteks Evolv-X 

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Ok everyone, I broke down and got an EVGA Supernova 750 G2. It was a little pricier than I would have liked... Ok, a *lot* pricier than I would have liked! But, she works great so far and has a 10-year warranty :) Also has a dual ball-bearing fan, which is nice, because I hate busting open power supplies just to change the blinkin' fan after it seizes.

 

On Eco mode, the fan doesn't run at all until I put a whopping load on the card and CPU :)

 

Turns out the CPU cache will actually overclock slightly better with this one than the cheap old Rocketfish. So, I can run 4.5 GHz on both cores & cache without bumping up the voltage. Nice!

 

Finally, I hooked up an AC ammeter to the input, and it uses about 4.2A of current from the wall outlet with the card and CPU under AIDA and Furmark stress tests... about 480W. Looks to me like the 750W was overkill, and I spent more dough than I had to.

 

Oh well, it's a nice PSU, and I can flog my graphics card as hard as possible now :)

 

Thanks everyone,

Peace and happy warfare

AD

Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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Finally, I hooked up an AC ammeter to the input, and it uses about 4.2A of current from the wall outlet with the card and CPU under AIDA and Furmark stress tests... about 480W. Looks to me like the 750W was overkill, and I spent more dough than I had to.

 

I would rather spend more than I had to than regret not spending enough. It is only money and you can always eat ramen noodles for the next month. ;)

ASUS ROG Maximus VIII Hero, i7-6700K, Noctua NH-D14 Cooler, Crucial 32GB DDR4 2133, Samsung 950 Pro NVMe 256GB, Samsung EVO 250GB & 500GB SSD, 2TB Caviar Black, Zotac GTX 1080 AMP! Extreme 8GB, Corsair HX1000i, Phillips BDM4065UC 40" 4k monitor, VX2258 TouchScreen, TIR 5 w/ProClip, TM Warthog, VKB Gladiator Pro, Saitek X56, et. al., MFG Crosswind Pedals #1199, VolairSim Pit, Rift CV1 :thumbup:

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I would rather spend more than I had to than regret not spending enough. It is only money and you can always eat ramen noodles for the next month. ;)

 

Sage advice indeed. :thumbup:

 

@ AD sounds about perfect plenty of overhead available and about 60% utilisation.

Control is an illusion which usually shatters at the least expected moment.

Gazelle Mini-gun version is endorphins with rotors. See above.

 

Currently rolling with a Asus Z390 Prime, 9600K, 32GB RAM, SSD, 2080Ti and Windows 10Pro, Rift CV1. bu0836x and Scratch Built Pedals, Collective and Cyclic.

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EVGA Supernova G2 750w max output.

It's 504w (4.2A X120v) at the input of the PSU, 452w at the output (90% efficiency). The PSU dissipates/burns 52w. Your at 60% of the max load of the PSU :)

Maybe, forget the useless ECO mode (notably on summer time) to keep your PSU components always fresh/cool.


Edited by Demon_

Attache ta tuque avec d'la broche.

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Looks okay in pixels

 

I have had no issue with my 850W version. :)

Control is an illusion which usually shatters at the least expected moment.

Gazelle Mini-gun version is endorphins with rotors. See above.

 

Currently rolling with a Asus Z390 Prime, 9600K, 32GB RAM, SSD, 2080Ti and Windows 10Pro, Rift CV1. bu0836x and Scratch Built Pedals, Collective and Cyclic.

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EVGA Supernova G2 750w max output.

It's 504w (4.2A X120v) at the input of the PSU, 452w at the output (90% efficiency). The PSU dissipates/burns 52w. Your at 60% of the max load of the PSU :)

Maybe, forget the useless ECO mode (notably on summer time) to keep your PSU components always fresh/cool.

 

 

I wouldn't call the Eco mode useless. That fan is barely needed :)

It only kicks in when both CPU and GPU are having the living boogers flogged out of them. All other times, including most gaming, it doesn't run at all.

 

 

As far as I'm concerned it's just another case fan :)

 

 

AD

Kit:

B550 Aorus Elite AX V2, Ryzen 7 5800X w/ Thermalright Phantom Spirit 120 SE, 2 x 16GB Kingston Fury DDR4 @3600MHz C16, Gigabyte RTX 3070 Windforce 8GB, EVGA SuperNova 750 G2 PSU, HP Omen 32" 2560x1440, Thrustmaster Cougar HOTAS fitted with Leo Bodnar's BU0836A controller.

--Flying is the art of throwing yourself at the ground, and having all the rules and regulations get in the way!

If man was meant to fly, he would have been born with a lot more money!

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I wouldn't call the Eco mode useless. That fan is barely needed :)

It only kicks in when both CPU and GPU are having the living boogers flogged out of them. All other times, including most gaming, it doesn't run at all.

 

 

As far as I'm concerned it's just another case fan :)

 

 

AD

 

I yet have to hear my PSU fan spinning.

 

Other than extreme OC beyond 600w it never even bothers spinning up, AS LONG as the temps stay below 45°C, which they usually do even during hot summer days ( I sit in a rather cold cellar room :) )

Gigabyte Aorus X570S Master - Ryzen 5900X - Gskill 64GB 3200/CL14@3600/CL14 - Asus 1080ti EK-waterblock - 4x Samsung 980Pro 1TB - 1x Samsung 870 Evo 1TB - 1x SanDisc 120GB SSD - Heatkiller IV - MoRa3-360LT@9x120mm Noctua F12 - Corsair AXi-1200 - TiR5-Pro - Warthog Hotas - Saitek Combat Pedals - Asus PG278Q 27" QHD Gsync 144Hz - Corsair K70 RGB Pro - Win11 Pro/Linux - Phanteks Evolv-X 

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