PC shutting down randomly, need help

Hello, my PC is shutting down randomly, it has a mixture of old and new components
Ryzen 3 3100
Gigabyte b450
XPG adata 3200mhz 8gb ram.
WD NVME 500gb and Crucial SSD 500gb
PSU is around 8 to 10 years old Seasonic SII 520w
GPU 1060 6gb
GPU, cpu temps and health of hdd are in normal range. I'm suspecting PSU is the culprit, if yes please suggest me good 80+ gold around 8k budget psu.
Thanks
 
mostly PSU and for an good model, Antec 750 gold, 850 gold or else corsair rm series which is abit expensive.
 
What happens exactly? Does it blue screen or directly switches off? Does it turn on automatically after shutting down or you have to start it manually?
 
No blue screen, it just shuts down, without a restart. Even simple tasks like using browser also does that and ofcource gaming. But sometimes i can game for half an hour. Please provide me model number of PSU, also should i go for 80+ gold for everyday 1 to 2 hours usage of PC? I am even thinking of CV550 or CV650 corsair.
 
It's 90% the PSU - it's very old (you mention 8-10) years, and PSUs that old weren't very efficient below 40-50% loads, plus being this old means that the it the capacitors etc in the PSU might have been worn out. I would recommend a Corsair CX550, or the CX650 if you plan to upgrade to a powerful (more than 200W) GPU later down the line. Avoid the CV units, don't have particularly good ratings.
Edit: Just saw your budget is 8k, go for Antec HCG Gold 750W or the Cooler Master V750 V2 in that range, not much else comes close. Personally I would prefer the Cooler Master for the longer 10 year warranty, but it will probably be out of stock.
 
It's 90% the PSU - it's very old (you mention 8-10) years, and PSUs that old weren't very efficient below 40-50% loads, plus being this old means that the it the capacitors etc in the PSU might have been worn out. I would recommend a Corsair CX550, or the CX650 if you plan to upgrade to a powerful (more than 200W) GPU later down the line. Avoid the CV units, don't have particularly good ratings.
Edit: Just saw your budget is 8k, go for Antec HCG Gold 750W or the Cooler Master V750 V2 in that range, not much else comes close. Personally I would prefer the Cooler Master for the longer 10 year warranty, but it will probably be out of stock.
Thank you for the help, but as i can see Cooler master v750 not available. Please provide a model which i can easily get online. How are these NeoEco NE750w Gold from Antec? Thermaltake Toughpower GF 750w? Antec HCG is around 9k after discount on Amazon.in

 
NE750G is also good, just that it has 5 yrs warranty instead of 7yrs. Both are well reviewed units. Cooler Master MWE 750 Gold is also a good choice, should be within your budget in Amazon.in after applying discounts, although it's available for cheaper from other places as well (one and two). Silverstone DA750 and Antec EA750G are also good choices. Good luck with the decision lol. I would personally go for the EAG750 purely because of the 7yrs warranty.
But you won't go wrong with any of the PSUs listed in this thread tbh (unless you are using them at more than 100% load all the time which I doubt you are)
 
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Deepcool DQ750M-V2L if you can find. All Japanese capacitors and 10 yr warranty.
I would also suggest to run it on an open bench first and see if it's some shorting issue due to case, maybe.
 
First decide your upgrades then finalize on your psu, if you're not gonna upgrade for years a good 550w will be more than enough for your configuration. If you need 750w Get antec HCG 750 from here 7300rs. Check with them if it's latest import and not old stock before buying, mostly it won't be old but just call and confirm just to be sure as old ones have issues.
 
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Are you getting any message in Event Viewer ?
Event viewer it just says system shutdown unexpectedly. I have never used this app before.

Log Name: System
Source: EventLog
Date: 23-07-2021 23:37:37
Event ID: 6008
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: DESKTOP-JIA0DJ4
Description:
The previous system shutdown at 11:07:53 PM on ‎7/‎23/‎2021 was unexpected.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="EventLog" />
<EventID Qualifiers="32768">6008</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2021-07-23T18:07:37.3657164Z" />
<EventRecordID>16698</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>DESKTOP-JIA0DJ4</Computer>
<Security />
</System>
<EventData>
<Data>11:07:53 PM</Data>
<Data>‎7/‎23/‎2021</Data>
<Data>
</Data>
<Data>
</Data>
<Data>2405</Data>
<Data>
</Data>
<Data>
</Data>
<Binary>E5070700050017001700070035006801E5070700050017001100250035006801600900003C000000010000006009000001000000B00400000000000000000000</Binary>
</EventData>
</Event>
 
Got the Antec HCG 750 80+gold, did not have any random shut down issue. I thank you all for helping me.
Mods please close the thread.
 

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