RTX 3070 no image, please help!

[Pedro452]

Hello everyone,

 

I want to start out by saying that I posted this earlier today and had marked it as resolved. But as it turns out, it wasn’t resolved. The pc repair shop guy said the card was working normal in the shop, so we then concluded it was the shitty psu. I bought a msi mag a850G, set it all up, updated my motherboard bios, did a ddu once again on the 1080 I had on the system, and even after all this, the 3070 still doesn’t output an image… I also saw on the psu website that there might be a correct orientation of the pcie cables when a card has 2 8pin pcie requirement, I have followed that precisely. I Have also swapped around the pcie connectors exchanging them from right to left to left to right. Still nothing. In case you’re wondering if ram is a problem, my 16gb get detected correctly in bios and in windows with the 1080 plugged in.

I really am out of options, and in need of a miracle lol

 

Below I will leave the original transcript of the previous post I had done.

 

 

 Yesterday I bought a second hand EVGA FTW3 Ultra RTX 3070 from a guy I know. He sent me a video of it working prior to me buying it. I have no reason to not believe in him. Before this purchase I had a gtx 1080 on my pc which worked fine. Sometimes the pc would randomly shut down, but I gave that up to regular windows shenanigans... I have already done somewhat extensive troubleshooting and have narrowed things down. With this post I'm just setting myself up in case of either two things. 1 I missjudge something and have not proceded in a correct way or 2 I have done everything that i could have and it's either a problem of the psu or the card.

 

I will know provide you with a list of specs and a list of the things i've done to try and remediate the current situation.

 

PC SPECS

i5 11400f with aio

16GB DDR4 corsair platinum ram - XMP 1 3200MHz

GTX 1080 / RTX 3070 

Gigabyte B560M Aorus Elite M-ATX Motherboard

80+ Bronze 700W Kolink PSU (Don't quite know the exact model, but those are correct specs) (Recommended psu Watts for the 3070 is 650 btw) (Have now bought an msi mag a850g as said in the beginning)

2 Sata SSD's one is 1tb, and the other is the boot drive with 512gb capacity

Windows 11 Home - activated

 

Troubleshooting

• First i ran ddu with all its recommended settings, but without being in safemode and without unplugging the ethernet; (Which I realized later might have been a mistake that led to my current situation)
• After running ddu and asking it to automatically shut down, i plugged in the 3070 and it gave me no display. I tried all ports (1 hdmi and 3 DP), none gave me a signal, but everything was as it should except for the fact that it did not give me image.
• My thoughts were this might be a psu problem because of the random shutdowns and whatnot, but now i don't think so as i've found the correct way to use DDU which i will be doing once again when i get home from work.
• Other solutions were, using two separate pcie cables, because before i was using a single one to power my 8+6 Pin 1080. This was so because my psu has two separate pcie cables, both with dual 8 pin ends. I think you get what i'm saying if not, just let me know and ill try to explain better. Unfortunately this did not work. RTX 3070 needs 2 8 pin pcie cables fyi.
• I then plugged in my 1080 but this time with the two different pcie cables instead of just one with the dual 8 pin. This worked on my 1080 so the cables were not the issue. 
• I also tried a cmos flash with a screwdriver, which also did not work.
• After that i tried formatting my pc with a bootable usb. Whilst inside the windows 11 configuration i was obviously using my 1080, and i had the ethernet plugged in so it grabbed drivers for that. After the configuration i shut down the pc and tried the 3070, to no avail.

 

So i think that narrows it down to a faulty utilization of the DDU program. When I get home I will use it correctly in safe mode and will be unplugging the ethernet. Also, I will download rtx 3070 drivers beforehand, just in case something weirds out idk.

 

Let me know if this is the correct approach or if i am missing something. I will update this post once i have tried this.

 

Have you any other suggestions?

 

Thanks for taking the time!

 

UPDATE 1

So, I will have the card brought to a pc repair shop in my local area so they can plug it in and tell me if it's workng or not.

The guy from the shop has told me that he does not think it's a psu issue, as, even though the psu might not be the best, it should be able to handle the card in a low usage environment i.e booting up the system. Because it does do just fine with the gtx 1080 I have which, according to him, does pull more power to turn on compared to an rtx 3070, so that somewhat excludes the psu as a problem.

 

UPDATE 2

Card works, as per the pc repair shop guy. I will buy a new psu and see how it goes.