9800x3d issue

[Burtoner]

Hi, got my lovely 9800x3d yesterday with MSI MAG Tomahawk x870
Got it all plugged in and working great.
I used my current NVME drive, so I havent reinstalled windows yet, previously used intel i7 6700k
Everything works great in windows, videos, internet etc, but when ever i load games, when it get past menu screen and into game the pc shuts off power.
It happens on any game i try.
I have cleared bios and only thing changed is memory to expo.
Suggestions?, reinstall a new windows?, disconnect all devices connected ie hard drives and leave the basic minimum required.

Temps wise CPU is idling at 43c
Ram is Corsair Vengeance RGB Grey 32GB 6000MHz
CPU cooler is a Noctya NH-D15 Chromax black

 

[Burtoner]

I haven't tried the bios yet, the GPU seems to be connected okay, some games run fine, the 2x 8pin connected to card, which is a ATI 6800XT
I clear the event log and try again, also i was suggested to remove intel repid storage technology, so done that too.

 

[Burtoner]

You did a fresh install of windows right?

Also are you using your existing PSU?

What wattage is it and how old.

What gpu are you running.

It sounds like a power issue.

I'm using exisiting PSU which is a Corsair CX750
Not sure how old exactly, at least 5 years old though.

GPU is ATI Radeon 6800XT

I haven't done a fresh install of OS, that would be my next thing.

 

[Burtoner]

With the power cables for the GPU, is it 1x cable split in to 2 connecters for the GPU or is it 2 separate power cables from the PSU to each 8 pin connecter to the GPU?

It comes with 2 seperate connector blocks

 

[Burtoner]

Assuming its this PSU https://www.corsair.com/uk/en/p/psu...plus-bronze-atx-power-supply-uk-cp-9020279-uk

then it seems to come with 2 X PCIE cables, a single and a double, as the others above have said, is the 6800XT using the two separate pcie cables or the single cable with double connector?

mine is an older one than that i think its got CX 750 written on it, but the CX is in green colour not white.

 

[Burtoner]

If you have moved from Intel to AMD, you MUST reinstall Windows, otherwise you're going to be running your system with all the old Intel stuff and hundreds of intel security patches etc. Conflicts are bound to happen. Also install the AMD chipset drivers if you haven't already done so.

I'm just reinstalling at moment, so i let you now bit later!

 

[Burtoner]

So i tried reinstalling, still does same thing if i load Starfield or 3dmark, it turns pc off after about 30secs.
My next things are to upgrade the bios and or change the graphics card over, just to see if it still happens again.

 

[Burtoner]

Do you have EXPO enabled? If so may be worth trying with stock settings.

I tried that too, just trying another graphics card now which doesnt need any additional power to rule out card, which was fine in old pc, i had taken expo off to back to stock settings, next will be changing the PSU over, I have exactly same one in another pc.

Update:-

Okay, so i tried 2 old graphics cards in this PC, a Nvidia 970 and a Nvidia GT710 ( last one requires no power connectors), and they work fine, So can we all agree it must be a PSU issue?, before I spend the bucks
Is it worth trying my other PC power supply which is the same one but a newer version of it.

Only other thing I havent done is updated the bios, but I don't think that's an issue.

We can all agree that the PC Parts I brought all fine.

 

[Burtoner]

I can confirm it is 2 seperate leads from the PSU directly, not daisy chained or shared.

 

[Burtoner]

Anyone recommend me one?
I have been using Corsair for quite a few years now, what wattage you suggest?
My current is 750w
I do have 2 ssd's a hdd, a noctua and amd 6800xt.