Graphics card running like a potato.

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Legendbuster56

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Aug 8, 2016
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Just bought a new power supply for my computer. (EVGA SuperNOVA 850w G2) and my computer is running like shit, I haven't turned my computer on for 4 days and when I installed the power supply and turned my computer on, it ran like a potato. Windows changed my user password to login to my computer to my Microsoft account password (I have no clue why) and my graphics card is running at like 6% ingame at like 300-400mhz and I can barely play anything. (I have a RX 480 8GB).
 
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arossetti

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Feb 22, 2013
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1. Did you make sure that the PSU is compatible with your Mobo?
2. Are all the connections secure - 24 Pin ATX + 6 Pin?
3. Changing out a PSU would not affect your Microsoft login.
4. Check drivers and update any overclocking software for the GPU.
5. Check the BIOS and make sure no settings were accidentally changed.

-What prompted you to dbuy a new PSU? If the old one died or there was a spike, maybe your Mobo went bad.
 
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amtseung

amtseung

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Jan 28, 2014
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Definitely number 3. That's freakish.

Don't forget to check the 4 or 8 pin CPU power as well. An underpowered CPU running in "limp mode" will certainly make the GPU look like it isn't doing anything. Clear CMOS and physically examine every power connection before proceeding further.

Never deny the possibility of a DOA power supply. Although exceedingly rare, it does happen.
 
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Shaun o

Shaun o

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Oct 7, 2007
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I hardly see why fitting a new PSU would cause any of the problems you are having Legend.

In any case about the best thing for you to do if the system you have was working fine before fitting the new power supply.
Would be to choose a system restore point from a few day ago, or the last one made in windows 7, 8 or 10.

Just go to backup and restore of windows as said and choose the last restore point made, or a restore point made before it.
Let it run, and restart once finished and see if the system is back to the way it was.

Just have a double check that all power from the new Psu is connected to the motherboard also, the 24 pin main power block.
The extra eight pin 12v EPS power to the motherboard.

And also any 12v pci-e power connected to the RX 480 graphics card that is required 6 pin 12v or 8 pin 12v depending on what brand of RX 480 card you have ok.

 
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Legendbuster56

Commendable
Aug 8, 2016
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I changed my old power supply because it was going bad (made weird noise and performance dipped where I get 5fps on the mouse) and I didn't want any harm to my computer. With my old power supply, I was having problems with my fps where the gpu would be running at 1200mhz but I get really shifty fps, a restart fixed that problem. Now with the new PSU, I still get the problem but only ingame, and my graphics card doesn't go up above 300-400mhz. Restarting also fixes the problem. It's frustrating having to restart till I get the performance I want.
 
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Seaweed Monster

Seaweed Monster

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Jun 7, 2014
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I was about ask whether the PSU had enough amps on the 12V rail however looking at your PSU it should not be an issue (70.8Amps on 12V).

However try these:
+Apply default settings in BIOS
+Ensure all required power cables are attached to each component. Ensure they're firmly in place.
+CPU and GPU temps. Check to see that CPU cooler has good contact with processor.
+Update motherboard BIOS - Using USB and drivers from the motherboards manufacture website. And all other drivers!
 
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arossetti

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Feb 22, 2013
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If your BIOS doesn't automatically disable the on board graphics when a discreet card is plugged in then you should disable in the BIOS.

I am still concerned that you reported that your MS Account had changed without your authorization. It is possible that you have a virus or malware that is eating resources and causing all sorts of havoc. If you able to, download a standalone scanner to a USB and try to run a full system scan.

Is is also quite possible that running your last PSU, which you reported having problems with, negatively affected your current MOBO which could be damaged.

Check your task manager and event logs for anything unusual or suspicious.
 
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salerhino

salerhino

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Mar 16, 2016
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Check temperatures using Speccy while idle and in game and write them here or printscreen.
 
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Legendbuster56

Commendable
Aug 8, 2016
18
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1,510


Im pretty sure its not a virus. Sorry for the confusion, but it didn't change my MS account password. Say my computer password I set is "12345" and my MS account is "abcde". When I turned my computer on after it being off and unplugged for 5 days, It said my computer reset and forces me to use the password for my MS account instead of "12345".
 
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