Need opinion on whether My PSU is not enough or dying.

maikalwolf

Reputable
Feb 1, 2016
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This is my set-up:

Asus Sabertooth 990fx R2.0 mobo
32gb Gskill 1866mhz ddr3
Thermaltakes tough power 750w. 80 Plus Gold.
Windows10
Thermaltake Water Cooler 3.0 240 Riiding RGB Edition PWM
fx8320 AMD RADEON R9 390
1 2tb Sata HDD 7.5 rpm
gaming keyboard and gaming mouse

So the problem is that over the last couple of months my system force closes and reboots the PC off and on when ever I try to enter my games (World of warships, Fractured Space, Total Warhammer). It started of intermitently but recently its to the point that it was doing it all the time while I attempted to enter games.

I have tried everything suggested my Customer Support of WoWs and still the same problem. I did research on the web, used MSI Kombuster to test/monitor the system and temperatures seem okay. I used DDU to clean and re-install drivers for GPU. I have re-installed Win 10, I have reinstalled Steam and the non-Steam games.

I thought at first it was my GPU, although temps were normal, with or without the MSI Gaming App (I read it did not play well with the wattman software). I have reverted to previous Radeon software updates as far back as December of last year.

I sent the GPU back to MSI and they are sending me a refurbished card after much back and forth (they wanted to give me a $171.00 refund but I held out for the card.) I sent them the card because it was still under warranty and I bought it used, I figure maybe it was a bad card someone sold me.

In the meantime I had an older gently used R7 260X card and I put it into the system...you guessed it, no problems whatsoever on high game settings of WoWs and the other games. In fact the problem dissapeared. So I borrowed a R9 390 from a friend that was selling his since he upgraded. I installed it and once again the problems returned. I deleted and re-installed WoWs again just to make sure. As soon as I tried to enter the game the PC again just forced closed and restarted. Same symptom.

The thing is I did all the stress tests and it passed CPUID, Kombuster, Full mark, GPU shark. Temperatures were normal and it passed all the tests. I was going to wait on the refurbished RMA of my R9 390 from MSI to test it again, but I wonder if I am chasing my tail and just need to replace the PSU, which according to several caculators I have tried seems to be enough to power things up!

Your thoughts ladies and gents? Should I just get another PSU and try that or could I try something else? Like I said, with the R7 260X the problem dissapears ( of course is less power hungry), with a different R9 390 the reboot returns.

Oh, no overclocking on these cards or the system ever.

Thanks in advance.
 
Solution
Yes it is. The r9 390 is a bit beefier and a bit slow whereas the rx480 is a bit weak but faster. Both are on par. U will get the same performance.
Well yes of course, but what of the scenario? I bought the PSU based on previous visits here and to Overclockers. And like I stated, based on several calculators i picked so I had enough headroom in case I wanted to overclock or get a second card.

So based on the issues do you think it could be the PSU? any other test i can perform? After each crash I get a Wattman reset message, forgot to mention that.
 
okay, so I found out that it was my card. I RMA the R9 390 and received another bad card a few weeks ago (black screen after 3 hours of play and then it got workse. So I sent it back and borrowed my friends spare R9 390 which i will probably buy from him since now my PC is doing great. Today MSI emailed me offering me a RADEON™ RX 480 GAMING X 8G because they have no R9 in stock. Any thoughts? is it an even trade?
 

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