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Prime95 causing instant reboot after ~3 minutes

post #1 of 5
Thread Starter 
Hi,

Im trying to Overclock my 2600K to 4.5 GHz and tried running Prime95 Large FFT mode, unfortunately after around 3 minutes the computer instantly reboots.

Specs:

CPU: Intel 2600K
Mainboard: Asus P8P67 Deluxe
RAM: 32GB Corsair CL10 PC3-12800
CPU Cooler: Corsair H100
Power Supply: Seasonic 850W

Vcore set to 1.300
Memory Voltage to 1.500

At lower Vcores Prime95 runs some minutes until I get a 101 BSOD.

Anyone got any idea what the problem is and how to fix it?
post #2 of 5
Could be a number of factors... but I'll start by asking the obvious. What temp was it when it was running Prime95? What cooling solution is on it? What is your memory set to for its frequency and timings?
 
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Yuki
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Hitomi
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CPUMotherboardGraphicsRAM
Intel Core i7 3930K P9X79 WS EVGA GTX 960 G-Skill Sniper 2133MHz 8GB 
RAMHard DriveHard DriveCooling
Team Dark 1600MHz 8GB intel 520 Series SSD 120gb Hitachi 1.5tb SATA6gb 7200rpm Corsair H110i GT 
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Windows 10 Pro Insider Preview Windows 7 Home Premium Dell UltraSharp U2311H HP 2310e 23" LCD 
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post #3 of 5
Try increasing VCore and running ram at default speeds.
Also try out Intel Burn Test, it's quicker than Prime.
   
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Pink Power
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post #4 of 5
Thread Starter 
Temperature was around 65c (cooling solution is the corsair h100 as described in the specs). Memory is set to 1600MHz and Memory's timings are on auto. Tried putting in the correct timings for my rams manually but that didnt help.
Increasing Vcore also doesnt help, increased it until 1.400 and Prime95 still caused reboots. I didnt try Intel Burn Test but I tried Linx before, which was running fine for 30minutes until it stopped with an error (no bsod, a linx-error).
post #5 of 5
Quote:
Originally Posted by Tasiro View Post

Temperature was around 65c (cooling solution is the corsair h100 as described in the specs). Memory is set to 1600MHz and Memory's timings are on auto. Tried putting in the correct timings for my rams manually but that didnt help.
Increasing Vcore also doesnt help, increased it until 1.400 and Prime95 still caused reboots. I didnt try Intel Burn Test but I tried Linx before, which was running fine for 30minutes until it stopped with an error (no bsod, a linx-error).

You should see an XMP (Extreme Memory Profile) Option in your BIOS somewhere around the OC settings, enable an XMP Profile instead of setting the timings listed on the RAM.
Some boards and chips are different, some will overclock easier and some wont, people claim to have a "golden" chip when they can pull of something like 4.6ghz on 1.22v.

First thing i suggest you do is the simplest and probably most reliable OC you can do on an Intel 'K' CPU.
Try just raising the multiplier to x45 and setting the VCore to 'Normal'

Run Intel Burn Test on Very High or Max, and run something else in the background that will tell you your voltage and other sensor info (i like AIDA64 Extreme Edition)
If you're successful, try doing the same thing with a higher multiplier. If you're not, try a lower multiplier.

I did this and got my 2500k from 3.3Ghz to 4.3ghz, and 'Normal' voltage is 1.34v when testing Maximum on IBT, it also clocks down the cpu and voltage when idle. Game temps are pretty much the same with or without OC and im using a Thermaltake Jing CPU Cooler.

Unless you wanna get really technical and do a more complex overclock, this would be your way to go, it's easier too imo.
   
Pink Power
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Hard DriveHard DriveOptical DriveCooling
Western Digital Green 2TB Intel 520 SSD Samsung SH-224DB DVD Burner Corsair H105 
CoolingCoolingOSPower
2x Enermax T.B Apollish Twister 140mm 2x NZXT FN 120RB Windows 7 Ultimate x64 Thermaltake ToughPower XT 775W 
CaseOtherOtherOther
NZXT Phantom 410 Leadtek DTV1000s HD TV Tuner/Capture Card ASUS PCE-N15 Wireless Adapter NZXT Sleeved Lighting Kit 100cm 
CPUMotherboardGraphicsRAM
Intel G630 Gigabyte GA-H61M-DS2 POV GT 430 2GB Strontium 4GB DDR3 
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WD Caviar Blue 500GB LG External DVD Burner Win7 Ultimate 32bit 680W ATX Power Supply 
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Pink Power
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500k @ 4.3ghz 1.34v Gigabyte Z68XP-UD3R Gigabyte GTX 760 OC Kingston HyperX t1 8GB 1866 MHZ 
Hard DriveHard DriveOptical DriveCooling
Western Digital Green 2TB Intel 520 SSD Samsung SH-224DB DVD Burner Corsair H105 
CoolingCoolingOSPower
2x Enermax T.B Apollish Twister 140mm 2x NZXT FN 120RB Windows 7 Ultimate x64 Thermaltake ToughPower XT 775W 
CaseOtherOtherOther
NZXT Phantom 410 Leadtek DTV1000s HD TV Tuner/Capture Card ASUS PCE-N15 Wireless Adapter NZXT Sleeved Lighting Kit 100cm 
CPUMotherboardGraphicsRAM
Intel G630 Gigabyte GA-H61M-DS2 POV GT 430 2GB Strontium 4GB DDR3 
Hard DriveOptical DriveOSPower
WD Caviar Blue 500GB LG External DVD Burner Win7 Ultimate 32bit 680W ATX Power Supply 
CaseOther
K-Mart Fish Tank Blue LED Strip 
CPUMotherboardGraphicsRAM
Intel i3 4170 AsRock B85M Pro3 ASUS Radeon R7 370 Kingston HyperX Fury 
Hard DriveHard DriveOSPower
Toshiba 500GB SATA3 Sandisk SSD Plus Windows 7 Ultimate Antec VPF550 550w 
CaseOther
Bitfenix Shinobi (Pink) 2x 30cm Pink LED Strips 
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