Solved Repeated crashing, possibly faulty power supply?

I replaced the power supply (my manufacturer said I could do this so long as the PC wasn't damaged in the process) and it hasn't crashed on me yet. However, about a week or so before the crashes started, I started getting random lag in games that up until then ran beautifully. Really really bad lag spikes that would make the game basically unplayable and could last for minutes at a time. I tried a less demanding game last night and I heard coil whine, and every so often the coil whine would stop for maybe half a second and while it was stopped the game would lag for that instant. I'm currently wondering if this could all be cat hair building up in the card but as I understand it the only way that would harm the card is by gunking the fans and I watched it while it was being stressed: the two fans underneath it were spinning away and my monitoring software was giving me a steady RPM within the min/max. I blew on the card earlier and at least externally I don't see much hair but not knowing how it works maybe some is stuck inside and hurting it somehow?
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64bitIntel Core i7 479016.0GB Dual-Channel DDR32047MB NVIDIA GeForce GTX 760 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Cyberpower PC Stealth Raider 250
OS
Windows 7 Home Premium 64bit
CPU
Intel Core i7 4790
Motherboard
MSI H81M-E33 (MS-7817)
Memory
16.0GB Dual-Channel DDR3
Graphics Card(s)
2047MB NVIDIA GeForce GTX 760 (EVGA)
Sound Card
NVIDIA High Definition Audio
Monitor(s) Displays
PHL 242G5
Screen Resolution
1920x1080
Hard Drives
TOSHIBA DT01ACA200 ATA (2TB)
PSU
Corsair CX 750M
Antivirus
ESET Smart Security 8
Look in the lower left of this post and you will see My System Specs.

Those are the specs of my computer. They will follow my every post so other members don't have to go searching through a bunch of post looking for them.

Following the tutorials I posted gives instructions on just how to do that.
 

My Computer My Computer

At a glance

Windows 10 Pro. 64/ version 1709 Windows 7 Pr...Intel i7-6800K @ 4.3Corsair Platinum 16 gig @2400EVGA GTX 1070 OC
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.

My Computer My Computer

At a glance

Windows 7 Home Premium 64bitIntel Core i7 479016.0GB Dual-Channel DDR32047MB NVIDIA GeForce GTX 760 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Cyberpower PC Stealth Raider 250
OS
Windows 7 Home Premium 64bit
CPU
Intel Core i7 4790
Motherboard
MSI H81M-E33 (MS-7817)
Memory
16.0GB Dual-Channel DDR3
Graphics Card(s)
2047MB NVIDIA GeForce GTX 760 (EVGA)
Sound Card
NVIDIA High Definition Audio
Monitor(s) Displays
PHL 242G5
Screen Resolution
1920x1080
Hard Drives
TOSHIBA DT01ACA200 ATA (2TB)
PSU
Corsair CX 750M
Antivirus
ESET Smart Security 8
What I noticed in the speccy log was that you have Windows Defender and Firewall active at the same time you have Eset anti virus and firewall active.

If it was my computer I would disable Windows Defender and firewall and just use Eset.

Have you checked you cpu and gpu temps under load? If so what where they?

What cpu cooling do you use?

Because I can't hear what you are calling coil whine I really don't have any suggestion except do you know where the sound is coming from?
 

My Computer My Computer

At a glance

Windows 10 Pro. 64/ version 1709 Windows 7 Pr...Intel i7-6800K @ 4.3Corsair Platinum 16 gig @2400EVGA GTX 1070 OC
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.
It's possible that the under powered power supply has damaged the card at this point I would contact the place you got it for warranty repair.
 

My Computer My Computer

At a glance

win 10
Computer type
PC/Desktop
Computer Manufacturer/Model Number
dell xps 9000
OS
win 10
Thanks guys, I think swapping the PSU fixed the problem and while it may have damaged the card some I turned the GPU's fan speed up to 70% instead of the default 43% and things are running fine now. I'm thinking mailing it back would just put the computer through a bunch of trauma and I plan on upgrading the card in a year or two anyway so as long as it's stable I'm happy.
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64bitIntel Core i7 479016.0GB Dual-Channel DDR32047MB NVIDIA GeForce GTX 760 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Cyberpower PC Stealth Raider 250
OS
Windows 7 Home Premium 64bit
CPU
Intel Core i7 4790
Motherboard
MSI H81M-E33 (MS-7817)
Memory
16.0GB Dual-Channel DDR3
Graphics Card(s)
2047MB NVIDIA GeForce GTX 760 (EVGA)
Sound Card
NVIDIA High Definition Audio
Monitor(s) Displays
PHL 242G5
Screen Resolution
1920x1080
Hard Drives
TOSHIBA DT01ACA200 ATA (2TB)
PSU
Corsair CX 750M
Antivirus
ESET Smart Security 8
Your welcome good luck
 

My Computer My Computer

At a glance

win 10
Computer type
PC/Desktop
Computer Manufacturer/Model Number
dell xps 9000
OS
win 10
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