Optiplex 7020 restarts when playing a game

NO PC told at all.  MT, SFF  (what size is it and size tells me what mobo is there and PSU)

Dell Optiplex 7020 restarts multiple times when playing a game. I have a gtx 1650 inside with the stock psu. Thanks

name the game, ?  dont be shy  just tell that,

after how long, 1second 1 min 20 hours, when?

the top causes (not weak PSU) my PC has same 1650 tested in many Dells  too.

1. CPU or GPU card overheats, both will shut done ,today.
2. bad GPU driver, no make of card told, there are 12 makers,  go to there support page for you and get it.

Id guess driver first, its like 5min work to get the right, no case to open. find PC full of dust and fans packed in lint , vents blocked, with lint.  

if your PC is a SFF, the PSU is weaK..240WATT IS ALL IT HAS. if pc is lean no options beyond GPU, it should run this 1650 at 75watts it needs

there are 3 cards, sold ,  1650 , 1650ti, and 1650 Super.

no idea what card you have no URL link to yours, but the cheap one is 300watt PSU spec, so you are 60watt short. IDK no PC told yes, what Chassis forum factor do you have.

the MT is 290watts,call it 300w and be happy.

your not in Equador (or the like) on the beach in a Cabana. right,  in a cold room? or hot cabana,  I can not guess room temps and have my own Cabana, too,a tad south.

Sorry, more information should have been given. It is a dell optiplex 7020 MT, 8gb ram and a zotac gtx 1650. It had been running for around 2 hours (playing fortnite.) 

ok load the zotac.com driver,  they have a support page ,run that driver, if they send you to nvidia.com the do so.

I have the same card here and never ever crash.

but I have powerfull RX750PSU in mine,CORSAIR

what do you have, 

 some cards need 300watt PSU other 400, the card uses only 75watts and has  no AUX12vdc cables or port for them on card, not there., so runs on any PSU over 300watt if  you dont have the SUPER card.

best is post URL to your card so I can see it and RTM your manual first,l  see what current it needs. there.

I have the entry level  1650 , not the barn burner version.

is this it (shows 300watt PSU min, go that)?

https://www.zotac.com/us/product/graphics_card/zotac-gaming-geforce-gtx-1650-oc

im there for you , now i click downloads for you  and w10 64bit (is it)

and land here. (3 clicks google the 2 on site)

https://www.zotac.com/us/files/download/by_product?p_nid=855804&driver_type=235&os=981

Yes, it is the gpu you have linked, thank you for your help. I am indeed using the stock 290w psu. 

gtx 1650 is 75W card that is NOT SUPPORTED with the stock less than 300W power supply.

. It is a dell optiplex 7020 MT, 8gb ram and a zotac gtx 1650. It had been running for around 2 hours (playing fortnite.)

now we have facts all.

nice,,,, that.

ok the 290 watts, is 10 watts less that the maker of the card wants./

I have same card here, zotac gtx 1650,  exactly, and shows in the manual 300watt min,

what does the DO exactly, on the screen.

1: BSOD.'s

2: screen frozen with game showing ?  locked solid you in fortnite screen) "Control+ALT + delete" is dead?

3: Back screened. and locked,

4: PC resets , autoreboots.?

5: PC shuts off , CPU fan goes silent,

your PSU is  marginal,  I'd not run that PSU, ever, if gaming you need robust power, the 12vdc rails on the card

have huge dynamic currents that the PSU this old may not be able to handle.

run HWinfo32.exe  free , app see if GPU overheats yet, and CPU>?

this app run gaming can show you TEMPERATURE and more. Get  it and use it,  keep it in your Kit.

my 3020MT  is sister to your PC,  and can use same PSU. using the $7 PSU adapter seen here.

a TX550 up  PSU is best, here,  with M, on end of TX is modular.  ( I like all TX series)

+3.3V@25A, +5V@20A, +12V@43A, (tx550 can do this) A = amps max. static. & more dynamic.