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rtx 3070 no signal to monitor, due to daisy chaining cable?

rtx 3070 no signal to monitor, due to daisy chaining cable?

CrazyCanuk

you're gonna need a new PSU, NVIDIA says 650 watts and all the reviews say that's accurate with the new gen of cards.


HeyItsStarlight

Yup. You should’ve checked if the PSU you have is compatible with the GPU you got before installing it.


Ok_Ruin5635

PCPP at least says its good, I'd assume that it would have at least shown a signal if that were the case.


HeyItsStarlight

It won’t boot unless there’s not enough power to give it to boot. If you don’t think thats the case you’re more than free to reinstall your old gpu as well to assure yourself that none of your other components are fried. If it does boot with the old GPU then it is obviously the PSU wattage. Daisy chaining will only limit the clock speeds that you hit especially with a Seasonic PSU, not interfere with its ability to boot.


Ok_Ruin5635

I already reinstalled my old gpu, its working fine without it. My only issue is that it is powering up, but just not giving any signal to monitor. All the fans spin, all the lights come on (including the one on the gpu)


HeyItsStarlight

Got it. Did you uninstall drivers via DDU and download the ones for your new GPU?


Ok_Ruin5635

I uninstalled the old drivers via ddu, did I need to install the ones for the 3070 before I put it in?


HeyItsStarlight

No you install it once you boot in with the 3070. I’d clear CMOS as a last go at it but if that doesn’t work. All that’s left is to upgrade your PSU.


Ok_Ruin5635

Yeah, that makes sense. Looking at it more it is most likely the PSU at fault here, so I'll try and find a second cable for it or I just gotta upgrade the whole thing


HeyItsStarlight

Second cable won’t change anything. Considering that it lights up and your old gpu worked fine it is not the cable. It is 100% the lack of PSU wattage. You need at the very very least 600w 80+ gold. I honestly would go for 650w 80+ gold to be safe for that specific GPU. In all honesty however if you’re asking me for a PSU recommendation in general, it’s not necessary at all, but I’d just go for an 850w 80+ gold if I had the chance to make it more future proof as PSUs can last for 10 years.


HeyItsStarlight

Cause if not I’d do that first with your old GPU. Also connect via HDMI after that and reinstall the new GPU. Then, if that doesn’t work I would suggest clearing CMOS as the mobo may be expecting your old GPU then connecting again with HDMI. I still stand on getting a higher wattage PSU btw as you will need it regardless.


HeyItsStarlight

Daisy chaining should be fine to at least boot. I honestly think your PSU doesn’t have enough wattage to support your GPU. I’d recommend 600w 80+ gold as the very bare minimum in all honesty.


XJSTZsarust

It's possible. It's also possible that your PSU is just not powerful enough since the recommended wattage is 650W for 3070. However both of those issues are more likely to cause the PC to shut down during gaming instead of not to start at all. There are also other issues that could cause no signals.


Ok_Ruin5635

What other issues?


XJSTZsarust

RAM could not be sitting properly. Connectors could be loose. Or the GPU could just be DOA. Also make sure your PSU is switched on. This happens to me more than once. Do you have any response from your PC when you turn it on? Any fan moving or any RGB lighting?


Ok_Ruin5635

Ram is fine (didn't touch it at all since upgrade), connectors seemed fine, I hope to god the GPU isn't DOA, the PSU was on(all the lights, including gpu, and fans were working, just no signal)


XJSTZsarust

Any chance your monitor cable could be an issue? are you connecting DP or HDMI?


Ok_Ruin5635

Both are fine, tried 3 different monitors with different cables (hdmi and DP)


XJSTZsarust

Then i guess your issue is most likely related to PSU.


OpportunityNo1834

Yea 550 watt is lower than Nvidia recommendation for the 3070, and then on top of that you are only really using one 8 pin cable.


EtherealSai

You really shouldn't daisy chain cables, tbh idk why they still make those kinds of cables when absolutely nobody recommends that you do it.