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If EVERY card has minor flickering + artifacts, whats the problem?

post #1 of 3
Thread Starter 
Okay, I've had my computer for a while and strange this have happened. For reference, the two cards I've had for 3 years prior, the Evga GTX 280 and the MSI 6950 Twin Frozr had none of these issues (though my 280 did overheat, and I needed to RMA many times. The 6950 I had 0 problems with).

My past 2 video cards, Powercolor 7870 Myst and MSI GTX 660 Twin Frozr both had minor flickering and artifacting that seemed to get progressively worse over 2 weeks.

In the past week I noticed some strangeness with either my CPU or SSD. Suddenly my load times for League of Legends would be a lot more average (rather than substantially faster than everyone else). Then, Soluto would freeze and crash. I proceeded to lower the OC, and I haven't seen any of those issues any more, but my artifacting seems to be worse than ever (I'd see something every few minutes, very brief flicking or screen tearing).

Here are the parts:

Mobo: Asrock Extreme 3 Gen 3, est. 1.5 years old. Pushed it somewhat hard; OC'd with lots of vcore and randomly tinkered with various voltages for extended use.
CPU: 2500, est. 2 years old. Pushed it quite hard with high volts and relatively high temps. Hardest stress was 8 hour prime runs that peak at 90C.
Mem: Mushkin Silverline Stiletto, 8 gb. (2 x 4 GB). est. 2 years old. Hardly ever OC'd, but this memory is extremely subpar, as evidenced by its speed&timings (1333, 9-9-9-24)
PSU: Corsair HX 750, est. 2.5 years old. Should have way more than enough juice for my GPU setups. However, my old Corsair HX 620 did malfunction and completely fry my old mobo a while back, the DFI Lanparty P35 DK.
Monitor: Samsung SyncMaster 2443, est. 2 years old.

Video cards in question:

1) Powercolor 7870 Myst: Does have many noticeable design flaws and QC issues, but the amount I have seems extreme and an outlier.
Experienced super strange, erratic behavior. Throttling, artifacting, flickering. This got progressively worse. In Firefox my windows kept resizing between 95% and 100% intermittently, extremely annoying. Had this card for 2 weeks in March.

2) MSI GTX 660 Twin Frozr OC: I don't know much about the QC of this card. Apparently ASUS' directCU designs have issues, but it seems to be an ASUS thing.
Experienced very minor flickering to start. Over the past 2 weeks it has gotten progressively worse, become more noticeable, screen tearing.

Could it be my monitor? Power cables? Surge protector? Power socket itself? Or just really bad luck getting 2 lemons in a row?
I hate my CPU
(11 items)
 
  
CPUMotherboardGraphicsRAM
2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
Hard DriveHard DriveOSPower
Seagate 1TB Samsung 840 Pro, 256 Win 7 x64 Corsair HX750 
Case
Coolermaster CM 690 
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Reply
I hate my CPU
(11 items)
 
  
CPUMotherboardGraphicsRAM
2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
Hard DriveHard DriveOSPower
Seagate 1TB Samsung 840 Pro, 256 Win 7 x64 Corsair HX750 
Case
Coolermaster CM 690 
  hide details  
Reply
post #2 of 3
I've seen PSU's that were going bad start to do this.
Nine Hund
(14 items)
 
  
CPUMotherboardGraphicsRAM
4770K 4.7ghz Delided CLU Asus Z87 Hero 2-Evga 1080 SC ACX HB Bridge Cors Dom 2666 c11 8gb 
Hard DriveHard DriveOptical DriveCooling
1x128gb Sam 840 pro (OS) 1x512gb Sam 850 pro (games) Asus DVD  H80i W/IndustrialPPC fans 
OSMonitorKeyboardPower
W10-64 Sony 55" x850c Microsoft Wireless 7000 Antec 1000 Noctua fan mod 
CaseMouse
Antec 900 W/ IndustrialPPC fans Razer Mamba TE 
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Nine Hund
(14 items)
 
  
CPUMotherboardGraphicsRAM
4770K 4.7ghz Delided CLU Asus Z87 Hero 2-Evga 1080 SC ACX HB Bridge Cors Dom 2666 c11 8gb 
Hard DriveHard DriveOptical DriveCooling
1x128gb Sam 840 pro (OS) 1x512gb Sam 850 pro (games) Asus DVD  H80i W/IndustrialPPC fans 
OSMonitorKeyboardPower
W10-64 Sony 55" x850c Microsoft Wireless 7000 Antec 1000 Noctua fan mod 
CaseMouse
Antec 900 W/ IndustrialPPC fans Razer Mamba TE 
  hide details  
Reply
post #3 of 3
Thread Starter 
Hm, what PSU would you recommend me buy if I were to test?

I'd like a modular, 600W+, silent. Obviously needs to have better stability and lifetime than the corsairs I've been getting.
I hate my CPU
(11 items)
 
  
CPUMotherboardGraphicsRAM
2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
Hard DriveHard DriveOSPower
Seagate 1TB Samsung 840 Pro, 256 Win 7 x64 Corsair HX750 
Case
Coolermaster CM 690 
  hide details  
Reply
I hate my CPU
(11 items)
 
  
CPUMotherboardGraphicsRAM
2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
Hard DriveHard DriveOSPower
Seagate 1TB Samsung 840 Pro, 256 Win 7 x64 Corsair HX750 
Case
Coolermaster CM 690 
  hide details  
Reply
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