[SOLVED] Enough power or not?

[kingston97bg]

HI, i already purchased Gigabyte AORUS RTX 2080 Ti version, but im scared to do exchange with my old 1070 Ti cuz im thinking the current psu is not enough for this beast.
Should i upgrade with higher PSU or no.
I'll use stock everything. No OC's.


𝘾𝙋𝙐: Intel® Core™ i7-9700K
𝙂𝙋𝙐: ROG Strix GeForce® GTX 1070 Ti Advanced Edition
𝙃𝘿𝘿: Toshiba HDWD110 1 TB, 7200 rpm
𝙎𝙎𝘿: GOODRAM CL100 2.5 240GB SATA3
𝙍𝘼𝙈: T-Force TUF Gaming Alliance 16GB 3200MHz
𝙋𝙎𝙐: Corsair TX550M - 550 Watt 80 Plus® Gold Certified
𝙈𝙊𝙏𝙃𝙀𝙍𝘽𝙊𝘼𝙍𝘿: ASRock Z370M Pro4
𝙊𝙎: Windows 10 Home 64-bit

 

[Quanticriver]

HI, i already purchased Gigabyte AORUS RTX 2080 Ti version, but im scared to do exchange with my old 1070 Ti cuz im thinking the current psu is not enough for this beast.
Should i upgrade with higher PSU or no.
I'll use stock everything. No OC's.


𝘾𝙋𝙐: Intel® Core™ i7-9700K
𝙂𝙋𝙐: ROG Strix GeForce® GTX 1070 Ti Advanced Edition
𝙃𝘿𝘿: Toshiba HDWD110 1 TB, 7200 rpm
𝙎𝙎𝘿: GOODRAM CL100 2.5 240GB SATA3
𝙍𝘼𝙈: T-Force TUF Gaming Alliance 16GB 3200MHz
𝙋𝙎𝙐: Corsair TX550M - 550 Watt 80 Plus® Gold Certified
𝙈𝙊𝙏𝙃𝙀𝙍𝘽𝙊𝘼𝙍𝘿: ASRock Z370M Pro4
𝙊𝙎: Windows 10 Home 64-bit

you have a quality psu, you could use it short term, but i would definitively swap it down the road for a 700+ watt one

 

[kingston97bg]

you have a quality psu, you could use it short term, but i would definitively swap it down the road for a 700+ watt one

Good.But which one from ranks? Golden would be fine.

 

[jay32267]

HI, i already purchased Gigabyte AORUS RTX 2080 Ti version, but im scared to do exchange with my old 1070 Ti cuz im thinking the current psu is not enough for this beast.
Should i upgrade with higher PSU or no.
I'll use stock everything. No OC's.


𝘾𝙋𝙐: Intel® Core™ i7-9700K
𝙂𝙋𝙐: ROG Strix GeForce® GTX 1070 Ti Advanced Edition
𝙃𝘿𝘿: Toshiba HDWD110 1 TB, 7200 rpm
𝙎𝙎𝘿: GOODRAM CL100 2.5 240GB SATA3
𝙍𝘼𝙈: T-Force TUF Gaming Alliance 16GB 3200MHz
𝙋𝙎𝙐: Corsair TX550M - 550 Watt 80 Plus® Gold Certified
𝙈𝙊𝙏𝙃𝙀𝙍𝘽𝙊𝘼𝙍𝘿: ASRock Z370M Pro4
𝙊𝙎: Windows 10 Home 64-bit

I think you should.
I think there's a potential for problems with only 550 watts.
Why run with the potential for problems?
I run an RTX 2080 Ti FE with a Corsair RMX 850

 

[kingston97bg]

I think you should.
I think there's a potential for problems with only 550 watts.
Why run with the potential for problems?
I run an RTX 2080 Ti FE with a Corsair RMX 850

Ok ty. I'll use the GPU with half ot the pins to see how much wattage will take.

 

[Quanticriver]

I think you should.
I think there's a potential for problems with only 550 watts.
Why run with the potential for problems?
I run an RTX 2080 Ti FE with a Corsair RMX 850

Given the quality of his PSU, it should work

Worst case scenario would be that his screen goes black

the unit shouldn't pop or take any components with it

long term, i wouldn't recommend it though as it will wear the PSU to the point of breaking

 

[jay32267]

Ok ty. I'll use the GPU with half ot the pins to see how much wattage will take.

I don't see any point in doing this.

 

[Quanticriver]

I don't see any point in doing this.

for the record, jay is right DO NOT ATTEMPT

 

[Jacozeelie]

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

 

[Zerk2012]

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

Garbage don't use that.

 

[NightHawkRMX]

I would say a quality 550w like the TX550M is sufficient if you are not overclocking anything, but ideally you would want more wattage.

Likely the worst that will happen if the system needs more power than the TX550M can provide is a system reboot/shutdown. The power supply will have protections that shouldn't allow you to draw too much and damage it in any way.

 

[Flayed]

You could always reduce the power limit to the card if you are concerned

 

[Zerk2012]

Good.But which one from ranks? Golden would be fine.

Guru3D got 269 watts from the card when gaming.
Your processor can pull up to 166 watts during a burst but should level off in the 125 watt area.
269+ 166 + about 60 watts for the rest about 20 more if your using a AIO cooler.

So in the 500 watt area under full load.
Short term use is up to you but I would look for a quality 650 watt PSU. 750 if you wish for more head room or overclocking.

 

[geofelt]

Your psu has the requisite pair of aux 8 pin pci connectors for a rtx2080ti.
Together along with 75w from the slot, that is a max draw of 375w.
Unless you are heavily overclocking your 9700K, I think you are ok.

The psu is of good quality.
If the power is not sufficient, I would expect the first indication to be graphics artifacts.

Still, watch it closely, and really consider upgrading the unit.

 

[Bob.B]

HI, i already purchased Gigabyte AORUS RTX 2080 Ti version, but im scared to do exchange with my old 1070 Ti cuz im thinking the current psu is not enough for this beast.
Should i upgrade with higher PSU or no.
I'll use stock everything. No OC's.


𝘾𝙋𝙐: Intel® Core™ i7-9700K
𝙂𝙋𝙐: ROG Strix GeForce® GTX 1070 Ti Advanced Edition
𝙃𝘿𝘿: Toshiba HDWD110 1 TB, 7200 rpm
𝙎𝙎𝘿: GOODRAM CL100 2.5 240GB SATA3
𝙍𝘼𝙈: T-Force TUF Gaming Alliance 16GB 3200MHz
𝙋𝙎𝙐: Corsair TX550M - 550 Watt 80 Plus® Gold Certified
𝙈𝙊𝙏𝙃𝙀𝙍𝘽𝙊𝘼𝙍𝘿: ASRock Z370M Pro4
𝙊𝙎: Windows 10 Home 64-bit

Psu selection....a method.
Take the tdp of the cpu and the gpu and double it.
Then pick a psu from this list that is that size or bigger.

PSU Hierarchy (Nov. 2025) - Power Supply Unit List

Here is the ultimate list-based hierarchy of all power supply units. We've ranked them in 8 different tiers so you can easily find out if your PSU is good!

www.gamingscan.com

I would not risk trying to use the new gpu with the psu you have.

 

[scout_03]

they ask for at least 750 watts psu with 2x8 pins connector so with hte price of this gpu would not risk using it with a low power psu .

 

[geofelt]

FWIW, I have found this chart to be a good way to size a psu:
http://www.realhardtechx.com/index_archivos/Page362.htm

 

[Herr B]

eh, you could just try it out. The 700 watts suggested should be plenty. Im running a 3090 and ryzen 5950x with 700 watts.

right now, im doing a somewhat simmilar build with rtx 2080 and core I5-11th gen cpu and 600 watts psu.


I wonder, have you considered the I5 of the current gen? Its of simillar price. But you might have to switch the mainboard /ram then I guess?

 

[kingston97bg]

eh, you could just try it out. The 700 watts suggested should be plenty. Im running a 3090 and ryzen 5950x with 700 watts.

right now, im doing a somewhat simmilar build with rtx 2080 and core I5-11th gen cpu and 600 watts psu.


I wonder, have you considered the I5 of the current gen? Its of simillar price. But you might have to switch the mainboard /ram then I guess?

Why i must switch these components?

 

[Herr B]

Why i must switch these components?

you do not have to switch these components. The new I-5 just comes out ahead in most benchmarks while a little cheaper.