How old is "very old" and what kind of "heavy use"?  It does sound like it could be a PSU.  What other hardware is in the system?

I used it for mining for a while it does occasionally make a rattling buzzing sound.

My system specs are:

9700k
MSI Z390 pro carbon
16gb corsair vengeance pro rgb
Rtx 2080 super ftw3 ultra
2 x nvme drives
2 x data ssd
1 x mech hdd
Corsair Commander pro
Evga g2 1000

Overclocking isn't guaranteed.

theWinterDojer

flyinion
Also, just to make sure for the two 8 pin PCIE connectors you used two separate cables right?  not one cable that maybe has a second connector branched off of it?  Those kind are rated for lower power GPU's. 

I keep seeing this sentiment on here but certainly this isn't the case for all PSUs? I have a SeaSonic Focus Gold 750W and it has the branching 8 pin connectors. I have never had an issue with any power delivery or overclocking.

I have a prime ultra 1000. The quick start manual says not to use the second connector for cards over 225W.

Just did a full re install of windows hoping that would fix it but same thing as soon as I up my core or memory too high and I I time strike system just shuts down

I've replaced the psu and I'm still getting the issue, any kind of OC or load causes my system to restart I clicked scan on the OC scanner and boom it restarts immediately

Check to see if there's any loose connections while using separately PSU cables used.  Make sure the GPU is seated in properly.  
 
I think you're getting all of this because of unstable OCs or just clocks in general.  Something isn't jiving right. Start over on default settings and go from there.

s.reeves967
If that is the case it's an incredible let down in a product I believed had binned Chips aimed at extreme overclocking and this cant even match reference models. I literally cannot add a single ghz without it restarting or freezing

There are plenty of people on this forum who have had good overclocks with that card but there are also others who have had only moderate overclocking success. The card is already overclocked to a very high standard and you should be able to play any game you want. What are your temps like when you try extreme gaming for a long period?

rjohnson11

s.reeves967
If that is the case it's an incredible let down in a product I believed had binned Chips aimed at extreme overclocking and this cant even match reference models. I literally cannot add a single ghz without it restarting or freezing

There are plenty of people on this forum who have had good overclocks with that card but there are also others who have had only moderate overclocking success. The card is already overclocked to a very high standard and you should be able to play any game you want. What are your temps like when you try extreme gaming for a long period?

My temps dont exceed 70 degrees mainly sit in the mid 60's. I understand I may not get the best of the best and it's down to the silicone lottery but I should atleast be able to achieve a moderate overclock for the extra price I paid over a reference design model, I'm getting lower clocks than people who paid hundreds of pounds less for me.

I agree partially but a card being sold and advertised for overclocking should atleast overclock even slightly also I dont know of anyone else that has the vf curve scan cause a hard reset when activated or a slightly oc'd card cause a hard reset when under load to me that indicates a fault somewhere.

I've also done some serious testing to see what going on and it seems I cant even add 20mhz to the core without it crashing out and completely resetting my system 20mhz barely takes me over the 2ghz level and mainly sits at 1950 same as stock and even at stock if I raise the power limit it fails 3Dmark stress test randomly and randomly resets. I even wasted £130 on a new psu to rule out power issues. I believe that is totally unacceptable for a card of this level and price.

I wish I could undo my step up return the trash card and get my 2070 super xc ultra back. First and last time I will ever get an FTW card.

I have a 2080 Super XC Ultra and the most I can add to the core is +15 for all around stability.  I can go up to +30 on a few games & benches, but not stable in everything.
 
Of course it would be nice if it would OC higher, but I have no complaints.  When I try benching with a +30 on the core, I end up with the same clock speed as using +15 due to it exceeding the power limit with +30.  Then it downclocks that extra 15MHz anyway...

I would be happy with 2025, does anyone else have random system reboots even at stock when put under load or running the vf curve scanner?

For what it's worth, I have a new evga rtx 2080 super (black series) and I am experiencing random restarts as well.  I swapped out both PSU and RAM.  Running in debug mode seems to postpone the crash/restart but not fix it entirely.  I am currently using EVGA 1000 G+; MSI MEG Z390 ACE motherboard; i9 9900k cpu.  I have independent rails to my graphics card (two different VGA power connectors are connected to pins on card.)
 
I followed the steps to do a clean boot uninstall / re-install but same result.  I've since examined the memory dump and see a reference to a Symantec process as well as NVIDIA process.  I am currently trying to download Youngblood from the Bethsesda site, which was redeemed with the purchase of the card, with both Symantec Smart Firewall and Auto-Protect disabled.  This will take some time as my Internet speed is not great (10Mbps).  If the download completes without incident then I may try overclocking and running a stress test.  I am leaning toward returning to Newegg as a defective card right now for replacement while I am still within the window of time allowed,  but want I'm not quite there, yet.  I don't have any prior experience troubleshooting these cards.
 
Edit:
My random restarts have been occurring without OC.  Also, if you're curious as to why I am testing utilizing the download from the Bethseda site, there is not particular reason other than it has crashed routinely while downloading from this site or the EPIC games site.

s.reeves967

bdary
System ram could be your issue.  It may not sound like it could be the problem, but you'd be suprised what faulty ram can cause.  Take a look at this link and try option 1 (memtest86) if for nothing else to rule it out.  > https://www.lifewire.com/free-memory-test-programs-2626178
 

Done a full memtest tried a single stick and swapping slots. My initial thoughts were ram or cpu as I've never had a gpu behave like this one. The annoying thing is the restarts are completely random so cant easily replicate it and it only happens under gpu load not cpu or ram as I've run prime 95 overnight without issue

At this point after everything you've tested & tried, I would contact tech support and start the RMA process.  They may have something they want you to try first, but I would start the process rolling.  I would also reference this thread to whomever you get in contact with at EVGA.

s.reeves967
I've already started the ball rolling on that one and when they reply I will reference this thread to them I was hoping someone from EVGA would notice the thread but I guess they dont monitor everything on the forum

   Keep us posted as to how it all works out...