Welches Netzteil für 2 Rtx 3070

[xxC0BR4xx]

Hello Guys I have my Desktop PC with i9-10850k, Rtx 3060, AsRock z490 extreme, an ssd 2x16GB Ram and some Fans with a PSU with 700W

Now I bought a 4x16 Riser like that:

https://www.esons.ch/pi/PC-Zubehoer...OKalsku81sf8TPFwZZXA52pKxm9ev0BRoCmXQQAvD_BwE

Now I want to power my two Rtx 3070 but how should I connect this. I have a second PSU with 750W. Is it possible to connect the Riser to my Desktop PSU with 700W and my two RTX 3070 to my second PSU?

Because when I connect I get a Warn triangle in the device manager and my 3070 dont have enough Power and won't get detected....

Should I buy a bigger PSU or did I connect something wrong?

Sorry for my bad englisch and thanks in advance for your answers.

 

[feidl74]

produktbeschreibung:
4-Fach PCI-E Express Riser Card 1x to 16x USB 3.0 mit 60cm USB Kabel
ich verstehe sie nicht ganz^^
4 pci-e slots mit 1x speed
auf usb3.0 16x speed?

vermutung die pci-e 1x liefern zuwenig strom am slot selbst für die gpus?

 

[heini80]

you can use 2 power-supplies, google will help how to do it, but i wouldn't do it.
also why 2 3070? would a 3090 not have been better solution?

https://geizhals.de/be-quiet-straig...-2-51-bn310-a2204490.html?v=k&hloc=at&hloc=de <- this one is available and should be more than enough for 2x 3070

 

[Chesterfield]

TE is Miner 🤣😂 @heini80

 

[xxC0BR4xx]

Yeah thanks man I had a 750w but this didn't work for two 3070. I will try with the 1200w. Are you sure this is enough?

 

[madmax2010]

It will definitely suffice.

One might even argue that its too much. Like every gramm of ressources wasted on Cryptomining is too much.

 

[KropeK]

Hey Cobr4,

where are you from?

 

[heini80]

you could also undervolt the 3070 to get more hash/Watt, maybe then 3070 could work.
also i don't understand why you would use a 10850k in a mining rig.

 

[xxC0BR4xx]

@feidl74 ich benütze diesen Riser um 4grafikkarten zum Mining zu betreiben da mein Mainboard nur 2 pcie x16 anschlüsse hat

Ergänzung (9. April 2021)

@heini80 because it was my gaming pc that I now use for mining with 3 3070 and one 3060 and I need a PSU that can power my additional 2 3070 i hope 1200w works

Ergänzung (9. April 2021)

@KropeK Im from switzerland

 

[heini80]

So why don't you speak german in a german forum? 🤔
Are you a french speaker in swiss?

 

[xxC0BR4xx]

@heini80
Ja normalerweise spreche ich französisch