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Preparing for future 1080SLI which psu?

zindan
By zindan
in Power Supplies
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My current psu is EVGA PowerSupply (PSU) SuperNOVA G3 650W Gold Rated

Which psu should I get to ensure that 1080 SLI will work? is my psu already enough? will 750w be sufficient? Dopn't wanna put to much money on it neither.. like 120-140$ is good enough.

PC SPecs: 

  • CPU
    i7 7700k
  • Motherboard
    Aorus by Gigabyte GA-Z270X-Gaming K5
  • RAM
    LPX 2x8GB DDR4 Black 3000MHz
  • GPU
    ASUS GeForce GTX1080 Strix
  • Case
    Cooler Master Storm Stryker - White
  • Storage
    Samsung 850 EVO Series 250GB
  • PSU
    EVGA PowerSupply (PSU) SuperNOVA G3 650W Gold Rated
  • Display(s)
    AOC G2460VQ6 + AOC E2470SWDA
  • Cooling
    Corsair Hydro H115i
  • Keyboard
    Mission SG GGK 3.1
  • Mouse
    Razer DeathAdder Elite
  • Operating System
    Windows 10 pro



Thanks

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Posted

Your current PSU should be fine.

it won't be at peak efficiency, and it might get a bit loud (IDK, haven't actually stressed a PSU to it's limit - maybe they're quiet). but it should be enough to support 1080 SLI as long as you have a normal CPU. (not a 7900X space-heater)

 

QUOTE/TAG ME WHEN REPLYING

Spend As Much Time Writing Your Question As You Want Me To Spend Responding To It.

If I'm wrong, please point it out. I'm always learning & I won't bite.

 

Desktop:

Delidded Core i7 4770K - GTX 1070 ROG Strix - 16GB DDR3 - Lots of RGB lights I never change

Laptop:

HP Spectre X360 - i7 8560U - MX150 - 2TB SSD - 16GB DDR4

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1 minute ago, RadiatingLight said:

Your current PSU should be fine.

it won't be at peak efficiency, and it might get a bit loud (IDK, haven't actually stressed a PSU to it's limit - maybe they're quiet). but it should be enough to support 1080 SLI as long as you have a normal CPU. (not a 7900X space-heater)

 

Wow really? MY specs are: 

  • CPU
    i7 7700k
  • Motherboard
    Aorus by Gigabyte GA-Z270X-Gaming K5
  • RAM
    LPX 2x8GB DDR4 Black 3000MHz
  • GPU
    ASUS GeForce GTX1080 Strix
  • Case
    Cooler Master Storm Stryker - White
  • Storage
    Samsung 850 EVO Series 250GB
  • PSU
    EVGA PowerSupply (PSU) SuperNOVA G3 650W Gold Rated
  • Display(s)
    AOC G2460VQ6 + AOC E2470SWDA
  • Cooling
    Corsair Hydro H115i
  • Keyboard
    Mission SG GGK 3.1
  • Mouse
    Razer DeathAdder Elite
  • Operating System
    Windows 10 pro
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It will be fine. PSU at jest below 80% load isn't ideal, but yours is good and will hold up at that load for a long time.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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Just now, Jurrunio said:

It will be fine. PSU at jest below 80% load isn't ideal, but yours is good and will hold up at that load for a long time.

Damn, a lot of people have been saying get 750Watt and 850.. Why did they say that ? Did they mean something particular? 

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Just now, zindan said:

Damn, a lot of people have been saying get 750Watt and 850.. Why did they say that ? Did they mean something particular? 

PSUs are most efficient at about 50% load, so if replacing the PSU is a must then 750W or 850W is the best option. If you already have a 650W though then it's not necessary.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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Just now, Jurrunio said:

PSUs are most efficient at about 50% load, so if replacing the PSU is a must then 750W or 850W is the best option. If you already have a 650W though then it's not necessary.

Hmm okay. Thanks.

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1 minute ago, zindan said:

Wow really? MY specs are: 

  • CPU
    i7 7700k
  • Motherboard
    Aorus by Gigabyte GA-Z270X-Gaming K5
  • RAM
    LPX 2x8GB DDR4 Black 3000MHz
  • GPU
    ASUS GeForce GTX1080 Strix
  • Case
    Cooler Master Storm Stryker - White
  • Storage
    Samsung 850 EVO Series 250GB
  • PSU
    EVGA PowerSupply (PSU) SuperNOVA G3 650W Gold Rated
  • Display(s)
    AOC G2460VQ6 + AOC E2470SWDA
  • Cooling
    Corsair Hydro H115i
  • Keyboard
    Mission SG GGK 3.1
  • Mouse
    Razer DeathAdder Elite
  • Operating System
    Windows 10 pro

You'll be fine.

 

if you OC that CPU to 5Ghz, it might use up 200W - and 200 is a pretty high estimate. it will probably be closer to 150W

GTX 1080 TDP is 180W, let's assume that is uses 200W when overclocked.

 

CPU plus both GPUs would equal 600W, and 50 watts is probably enough for the rest of your system, unless you have a crazy amount of hard drives or something.

it's getting close, and if you were to re-buy your PSU, I'd tell you to get a 750W unit just for the extra headroom and efficiency, but the EVGA G3 is top notch, and it should be totally fine.

 

Just now, zindan said:

Damn, a lot of people have been saying get 750Watt and 850.. Why did they say that ? Did they mean something particular? 

Many people overestimate power consumption.

most systems could get by on a 400W PSU.

my system, with a 1070 and 4770K in it, rarely, if ever, draws more than 350W from the wall, which means it's taking closer to 300W in power consumption. this is under GPU and CPU load.

 

QUOTE/TAG ME WHEN REPLYING

Spend As Much Time Writing Your Question As You Want Me To Spend Responding To It.

If I'm wrong, please point it out. I'm always learning & I won't bite.

 

Desktop:

Delidded Core i7 4770K - GTX 1070 ROG Strix - 16GB DDR3 - Lots of RGB lights I never change

Laptop:

HP Spectre X360 - i7 8560U - MX150 - 2TB SSD - 16GB DDR4

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Just now, RadiatingLight said:

You'll be fine.

 

if you OC that CPU to 5Ghz, it might use up 200W - and 200 is a pretty high estimate. it will probably be closer to 150W

GTX 1080 TDP is 180W, let's assume that is uses 200W when overclocked.

 

CPU plus both GPUs would equal 600W, and 50 watts is probably enough for the rest of your system, unless you have a crazy amount of hard drives or something.

it's getting close, and if you were to re-buy your PSU, I'd tell you to get a 750W unit just for the extra headroom and efficiency, but the EVGA G3 is top notch, and it should be totally fine.

 

Many people overestimate power consumption.

most systems could get by on a 400W PSU.

my system, with a 1070 and 4770K in it, rarely, if ever, draws more than 350W from the wall, which means it's taking closer to 300W in power consumption. this is under GPU and CPU load.

 

So this one for isntance? EVGA PowerSupply (PSU) SuperNOVA 750 G2 750W 

https://www.webhallen.com/se-sv/datorkomponenter/199771-evga_powersupply_supernova_750_g2_750w

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MY spec: 

  • CPU
    i7 7700k
  • Motherboard
    Aorus by Gigabyte GA-Z270X-Gaming K5
  • RAM
    LPX 2x8GB DDR4 Black 3000MHz
  • GPU
    ASUS GeForce GTX1080 Strix
  • Case
    Cooler Master Storm Stryker - White
  • Storage
    Samsung 850 EVO Series 250GB
  • PSU
    EVGA PowerSupply (PSU) SuperNOVA G3 650W Gold Rated
  • Display(s)
    AOC G2460VQ6 + AOC E2470SWDA
  • Cooling
    Corsair Hydro H115i
  • Keyboard
    Mission SG GGK 3.1
  • Mouse
    Razer DeathAdder Elite
  • Operating System
    Windows 10 pro



Which one do you recommend guys? 
The one I already have or this psu? 
https://www.webhallen.com/se-sv/datorkomponenter/199771-evga_powersupply_supernova_750_g2_750w

Thanks a lot. 

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You currently PSU should be fine because two gtx 1080's consumes around 360W (not the exact calculations for power consumption), combined with the rest of your system, there should be enough wattage left over. 

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1 minute ago, zindan said:

So this one for isntance? EVGA PowerSupply (PSU) SuperNOVA 750 G2 750W 

https://www.webhallen.com/se-sv/datorkomponenter/199771-evga_powersupply_supernova_750_g2_750w

Yeah, that would give you more headroom, but don't get it. your current PSU is good enough.

QUOTE/TAG ME WHEN REPLYING

Spend As Much Time Writing Your Question As You Want Me To Spend Responding To It.

If I'm wrong, please point it out. I'm always learning & I won't bite.

 

Desktop:

Delidded Core i7 4770K - GTX 1070 ROG Strix - 16GB DDR3 - Lots of RGB lights I never change

Laptop:

HP Spectre X360 - i7 8560U - MX150 - 2TB SSD - 16GB DDR4

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Just now, RadiatingLight said:

Yeah, that would give you more headroom, but don't get it. your current PSU is good enough.

 

Just now, TheBeastPC said:

You currently PSU should be fine because two gtx 1080's consumes around 360W (not the exact calculations for power consumption), combined with the rest of your system, there should be enough wattage left over. 

Okay thanks a lot.

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2 minutes ago, BDunkz said:

@zindan um, why are you running your whole pc on 1 250gb drive?

Because I don't download as much porn as you do. Nah I have another 500gb just didnt put it in :P 

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1 minute ago, zindan said:

Because I don't download as much porn as you do. Nah I have another 500gb just didnt put it in :P 

lol ok, you should still keep some space just in case your internet goes down and you gotta watch some ;)

 

 

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Just now, BDunkz said:

lol ok, you should still keep some space just in case your internet goes down and you gotta watch some ;)

 

 

If my internet goes down I'l use my imagination. I'l make up a story where I live on a farm and the neighbour have a hot amazing daughter that wants to fuck me all the time. Then her mother bust us sometime and then she wants in on the action too. Eventually the day before I move the father discovers the whole thing but I am long gone before he can do anything. And he forgives his wife and is actually kinda turned on by the thought of his wife being fucked by the young neighbour. Oh yeah. no extra space needed :D

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1 minute ago, zindan said:

If my internet goes down I'l use my imagination. I'l make up a story where I live on a farm and the neighbour have a hot amazing daughter that wants to fuck me all the time. Then her mother bust us sometime and then she wants in on the action too. Eventually the day before I move the father discovers the whole thing but I am long gone before he can do anything. And he forgives his wife and is actually kinda turned on by the thought of his wife being fucked by the young neighbour. Oh yeah. no extra space needed :D

that works 2

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Threads were merged.

 

Making multiple threads about the same topic isn't allowed.

If you need help with your forum account, please use the Forum Support form !

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