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Failing Prime 95 1344k instantly

post #1 of 3
Thread Starter 
Hello,
I tried to make some stability test but things are not stable.
Prime 95 will fail instantly after few seconds in all cores when setting the RAM speed to 1600MHz (XMP Profile or manually)
If I lower the RAM speed to 1333 or 1400 it will success to complete the test without error.
System running at stock now. I guess the motherboard doesn't like 4 sticks or there is a timing the module doesn't like.
Anyone have experience with 4gb x4 and asrock z77 mobos can share some experience.

Thanks
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770 ASRock Z77 OC FORMULA Sapphire 5850 Toxic 1GB 850/1200 G.SKILL F3-12800CL9S-4GBRL x 4 
Hard DriveOptical DriveOSMonitor
WD 1TB Black FAEX Sony NEC 22x Win7 x64 Samsung 2494HS 
PowerCase
Antec 850w HAF 932 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770 ASRock Z77 OC FORMULA Sapphire 5850 Toxic 1GB 850/1200 G.SKILL F3-12800CL9S-4GBRL x 4 
Hard DriveOptical DriveOSMonitor
WD 1TB Black FAEX Sony NEC 22x Win7 x64 Samsung 2494HS 
PowerCase
Antec 850w HAF 932 
  hide details  
Reply
post #2 of 3
Have you tried two sticks at the XMP profile settings?
post #3 of 3
Thread Starter 
Some testing:
Testing 2 Sticks @ 1600MHz at Slot 1 and Slot 3 = No Errors
Testing other 2 Sticks @ 1600MHz at Slot 2 and Slot 4 = No Errors
Testing the 4 sticks @ 1600MHz = Errors after some seconds
Conclusion:
No problem with the ram slots.
No problem with the ram sticks running at 1600MHz.
So my guess it is settings issues with the 4 sticks installed. Any hints?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770 ASRock Z77 OC FORMULA Sapphire 5850 Toxic 1GB 850/1200 G.SKILL F3-12800CL9S-4GBRL x 4 
Hard DriveOptical DriveOSMonitor
WD 1TB Black FAEX Sony NEC 22x Win7 x64 Samsung 2494HS 
PowerCase
Antec 850w HAF 932 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770 ASRock Z77 OC FORMULA Sapphire 5850 Toxic 1GB 850/1200 G.SKILL F3-12800CL9S-4GBRL x 4 
Hard DriveOptical DriveOSMonitor
WD 1TB Black FAEX Sony NEC 22x Win7 x64 Samsung 2494HS 
PowerCase
Antec 850w HAF 932 
  hide details  
Reply
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