Question My brand new 4070 is reseting my PC every time when I run a game or benchmark

[gabizinha]

Hi everyone,
Last week I got my new 4070, did some tests this weekend and decided to do a little undervolt to keep temps and power consumption down (I followed this video).

It worked absolutely fine, I gamed Cyberpunk smoothly yesterday.

However, for unknown reasons, when I tried to play again today the PC justs reboots instatly.

Tried playing: Cyberpunk, Starfield, Heaven Benchmark... essentially anything that "uses" the GPU just reboots the PC!

I've already tried DDU, reseting any configurations of afterburner (with and without undervolting), and nothing works.

Did I do something stupid? I just set the curve to 900v and 2550mhz


Here's a picture from my Afterburner idle clocks (WITHOUT ANY UNDERVOLTING), it seems to me the GPU is running really low?! Sometimes it spikes the MHz to the normal settings but it keeps rebooting anyway.



Thanks for the help

5800X3D - HYPER 212 EVO CoolerMaster
RTX 4070 Windforce 12GB
PSU Cooler Master 750w MasterWatt
ASUS B450-F Gaming Strix
16 GB @ 3200Mhz ( 2 x 8GB Crucial Ballistix)

 

[JohnBonhamsGhost]

include your complete system specs with power supply make & model plus it's time in use.

 

[ohio_buckeye]

include your complete system specs with power supply make & model plus it's time in use.

Agreed. Sounds like your power supply isn’t up to the job.

 

[gabizinha]

Agreed. Sounds like your power supply isn’t up to the job.

include your complete system specs with power supply make & model plus it's time in use.

Here it is

5800X3D - HYPER 212 EVO CoolerMaster
RTX 4070 Windforce 12GB
PSU Cooler Master 750w MasterWatt
ASUS B450-F Gaming Strix
16 GB @ 3200Mhz ( 2 x 8GB Crucial Ballistix)


Odd thing is that I played almost 8 hours yesterday, it ran fine, and the undervolt acutally kept my PSU cooler and my gpu drawing 110w power (before it was 180w under load)

 

[ohio_buckeye]

It's been a while, but to be honest I can't say I'm a fan of cooler master power supplies. When you get a good unit they seem great, but I've seen ones that should have powered different pc's just fail to work correctly.

Have a look at this list.

PSU Tier List rev. 17.0g - Cultists Network

PSU Tier List will help you to choose the best PSU out of hundreds of models on the market. From budget to the highest end Power Supplies.

cultists.network

Is yours a MasterWatt Lite? If so those appear to be Tier F if I'm reading that list correctly. Ideally you want a unit that's in Tier A or B

 

[gabizinha]

It's been a while, but to be honest I can't say I'm a fan of cooler master power supplies. When you get a good unit they seem great, but I've seen ones that should have powered different pc's just fail to work correctly.

Have a look at this list.

PSU Tier List rev. 17.0g - Cultists Network

PSU Tier List will help you to choose the best PSU out of hundreds of models on the market. From budget to the highest end Power Supplies.

cultists.network

Is yours a MasterWatt Lite? If so those appear to be Tier F if I'm reading that list correctly. Ideally you want a unit that's in Tier A or B

Hi, thanks for the time for helping me

Mine is this one

Cooler Master MasterWatt 750 Semi-fanless Modular 80 Plus Bronze Certified ATX PSU

The MasterWatt 750 is a 80 Plus Bronze Power supply with an innovative semi-fanless mode. Under 15% load, the MasterWatt fan remains idle, offering zero dBA. When demand for power increases, a gradual fan curve provides measured cooling with little to no noise at any output level. Dual forward /...

www.coolermaster.com

Like I said before, I played just fine yesterday, I have no idea what I did to today to have this issue! I undervolted, played for 8 hours, and right now I can't even run a game, benchmark, anything. I've already undervolted'd it, reset the drivers etc

 

[gabizinha]

@ohio_buckeye @JohnBonhamsGhost

Just tried with another gpu, my old 1070 and stills resets for no reason. theres a way to see if its really the psu?

 

[ohio_buckeye]

The way I know is try another psu. Do you have a microcenter nearby or even a Best Buy? Here’s what I’ve got in my personal pc.

https://www.bestbuy.com/site/corsair-rmx-series-rm850x-80-plus-gold-fully-modular-atx-power-supply-black/6459244.p?skuId=6459244

If you’ve got the $$ bigger is better but I imagine that would be plenty and it’s rated as tier A. I could be wrong but I think this unit has a 10 year warranty. I suppose you could always purchase one to see if that resolves your issue since you would have a return policy.

 

[JohnBonhamsGhost]

Just tried with another gpu, my old 1070 and stills resets for no reason. theres a way to see if its really the psu?

there's not much else that would affect multiple GPUs,
except for maybe a bad PCIe slot.

 

[richardvday]

Sure does sound like a bad PSU. Just because it was working at first doesn't mean its good.