Overclock.net › Forums › Intel › Intel CPUs › Prime95, single problem core?
New Posts  All Forums:Forum Nav:

Prime95, single problem core?

post #1 of 4
Thread Starter 
Hello, I am relatively new to overclocking and looking for a bit of help.
I understand that I should up my fsb bit by bit and then test for stability. I am using prime95, but when am I testing, there is one core (core #3) that always seems to fail on me within a few minutes. Is this a common symptom of an unstable system? Or is it a sign or something else (faulty core/chip?)?
I assumed that it means it's just an unstable overclock and have bumped the voltage a bit, but it seems (from what I know) that I have had to up the voltage more than I should have for my rig.
Right now I have been running prime for about five minutes or so without core3 failing, and I'm at 3.5 ghz at 1.2vcore.
Tenspeed
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 Evga 790i (p04) Evga 9800GTX (2x2)gb OCZ DDR3 1600 
Hard DriveOptical DriveOSMonitor
(2) 10k 150GB WD Raptors Raid 0 and (1) 500 GB WD (2) Samsung XP 32/Vista 32 Samsung 22" 
KeyboardPowerCaseMouse
Logitech g15 Silverstone Olympia 1000W Lian Li v2110 Logitech g5 
  hide details  
Reply
Tenspeed
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 Evga 790i (p04) Evga 9800GTX (2x2)gb OCZ DDR3 1600 
Hard DriveOptical DriveOSMonitor
(2) 10k 150GB WD Raptors Raid 0 and (1) 500 GB WD (2) Samsung XP 32/Vista 32 Samsung 22" 
KeyboardPowerCaseMouse
Logitech g15 Silverstone Olympia 1000W Lian Li v2110 Logitech g5 
  hide details  
Reply
post #2 of 4
It's rare for all cores to OC exactly the same. The weaker core probably just needs a touch more voltage, or possible some GTL tweaks (play with GTL values btween 60 and 64% of vcore).

You still have a decent bit of headroom to up voltage.
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
post #3 of 4
Thread Starter 
I know that I have more voltage I can add before it's dangerous, but I wasn't expecting to need it so soon.
Also: if a thread or two have an error after a while (or at all), does that mean that my oc isn't stable and I should fix that before I clock higher?
Tenspeed
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 Evga 790i (p04) Evga 9800GTX (2x2)gb OCZ DDR3 1600 
Hard DriveOptical DriveOSMonitor
(2) 10k 150GB WD Raptors Raid 0 and (1) 500 GB WD (2) Samsung XP 32/Vista 32 Samsung 22" 
KeyboardPowerCaseMouse
Logitech g15 Silverstone Olympia 1000W Lian Li v2110 Logitech g5 
  hide details  
Reply
Tenspeed
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 Evga 790i (p04) Evga 9800GTX (2x2)gb OCZ DDR3 1600 
Hard DriveOptical DriveOSMonitor
(2) 10k 150GB WD Raptors Raid 0 and (1) 500 GB WD (2) Samsung XP 32/Vista 32 Samsung 22" 
KeyboardPowerCaseMouse
Logitech g15 Silverstone Olympia 1000W Lian Li v2110 Logitech g5 
  hide details  
Reply
post #4 of 4
Any errors are a sign of a problem. Yes, I would fix first, then move on.
Main System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E3120 GA-P35-DS3P Rev 2.1 GV-N26OC-896H 4GB Corsair Dominator 1066 
Hard DriveOptical DriveOSMonitor
WD800JD (80GB) Pioneer 215 Windows Vista Ultimate 64bit Samsung 2493HM 24" 
KeyboardPowerCaseMouse
Dell wireless Antec Neopower 650W CoolerMaster HAF932 Dell wireless 
  hide details  
Reply
Main System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E3120 GA-P35-DS3P Rev 2.1 GV-N26OC-896H 4GB Corsair Dominator 1066 
Hard DriveOptical DriveOSMonitor
WD800JD (80GB) Pioneer 215 Windows Vista Ultimate 64bit Samsung 2493HM 24" 
KeyboardPowerCaseMouse
Dell wireless Antec Neopower 650W CoolerMaster HAF932 Dell wireless 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Prime95, single problem core?