Something holding a new pc's specs down?

[Luikkari]

Hey

My friend just got her first "real" pc that can handle some gaming. It's her first pc that's not pre built and it arrived like 4 days ago. However, the amount of FPS she's getting doesn't quite right to me.
She mainly plays League of Legends. Her FPS varies a lot. Sometimes she gets 56 fps with very high graphics even without being in an intense teamfight, sometimes even 120. Sometimes in teamfights the FPS drops to 30. So the FPS isn't stable at all and I don't think that with her build it should ever drop top 30 in teamfights. I told her to download a driver for her GPU but she might have downloaded a wrong one. Any thoughts?
Anyways, here are the specs:

Spoiler

Processor: Intel Haswell Core i5-4460, LGA1150, 3.2GHz, 6MB
Motherboard: Asus Z97-P, LGA1150, Intel Z97, DDR3, ATX 115
RAM: Kingston 8GB HyperX Savage DDR3 2133MHz
GPU: MSI NVIDIA GeForce GTX 960 Gaming, 4GB GDDR5
Samsung 500GB 850 EVO SSD 2.5" SATA III
Windows 10 64-bit
PSU: Corsair 650W, VS650, ATX

 

[TofuLion]

you're right, that PC should handle LoL with NO problems whatsoever. tell her to install Geforce Experience and update the drivers through that app, it will automatically find the most up to date driver.

 

[okcnaline]

Bad power supply. That's why you never go with prebuilt computers. Corsair VS is one of Channel Well's rather lackluster PSUs, and the company has seen much better days.

 

[Luikkari]

Bad power supply. That's why you never go with prebuilt computers. Corsair VS is one of Channel Well's rather lackluster PSUs, and the company has seen much better days.

Ah my bad, I meant to say that it was her first pc that is not pre-built. I'll edit the post. :S
EDIT: So the FPS problem is because of her power supply?

 

[Luikkari]

you're right, that PC should handle LoL with NO problems whatsoever. tell her to install Geforce Experience and update the drivers through that app, it will automatically find the most up to date driver.

She has Geforce Experience and it says that there are no updates available.

 

[affinitydesigns]

It might be throttling from the CPU. Try going in the control panel and then power settings then set it to high performance and see if that helps.
Also, download something like HWMonitor to keep any eye on temps and clocks and you might be able to tell what's causing it to dip.

 

[okcnaline]

Yeah, the FPS is because of the power supply. It probably isn't giving enough power because it's such an old unit.

 

[affinitydesigns]

The PSU definitely isn't the best, but that system is pulling MAYBE 500w tops. I doubt it is causing the entire computer to throttle. Especially if there's no crashing.

EDIT: Download HWMonitor, and CPUID, you want to track your ghz while the game is open. Same for GPU. You want to make sure the speeds are what they're supposed to be.

 

[TofuLion]

yea, more like 300 watts MAX. i don't think it's the PSU either, as poor quality as it might be. as stated, check the temps, maybe the cpu cooler ins't seated properly, etc.

 

[madmatt30]

^ I doubt its pulling 300w in all honesty , the PSU is under no stress whatsoever there.

Just to be certain (it would not be the first time) she does have her monitor plugged into the 960's video out & not into the video output on the boards back panel ??

Those fps look suspiciously like what the integrated graphics would do IMO.

 

[TofuLion]

right, just like when your car doesn't start the first thing you check is the gas gauge XD

make sure to check the simplest solutions first: double check everything to make sure the system is assembled and connected 100% before you look anywhere else.

 

[affinitydesigns]

That's a good call Madmatt, check that too.

 

[Karadjgne]

Go through windows experience, make sure it's done, should get you a score of 7.6-7.7.
Go through GeForce Experience, before install check the box for 'clean install'.
Look in bios. Make sure xmp is set for 2133MHz ram, it'll default to 1600 if not, possibly setting voltage to 1.65v
Make sure Intel smart connect is disabled