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Having trouble getting 2500k stable.

post #1 of 7
Thread Starter 
Hello all I've been having a hell of a time trying to get my 2500k stable at 4.5ghz, I've fiddled with RAM voltage and timings, I've tried vcore anywhere from 1.34 to 1.37, I've tried setting the load lane from anywhere from 1 - 5, I've tried setting dram voltage a bit higher and a bit lower but it's always the same thing, 3 minutes of prime95 and I blue screen.

here are some screenshots of the touchbios, it's not what I use for overclocking but it's easier to take pictures of. As of right now everything is default except I have turbo mode on and I'm using a different pair of RAM, my other pair has an XMP profile but that doesn't help things either.







550D
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[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
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550D
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CPUMotherboardGraphicsRAM
[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
Hard DriveHard DriveCoolingOS
[ Corsair 250GB Force GT ] [ Western Digital Caviar Black 1TB ] [ Corsair h100i ] [ Windows 7 64bit Home Premium ] 
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post #2 of 7
when over clocking make sure to disable all power saving settings and turbo settings. sometimes the turbo settings will try to downclock the voltage. also make sure LLC is on to account for vdroop
Chimera
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i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
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8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
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Chimera
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i5 2500k 4.8Ghz ASUS P8Z68-v PRO GEN3 Evga gtx 580 3gb Evga gtx 580 3gb 
RAMHard DriveCoolingOS
8Gb Veangence ocz agility 3 watercooled Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
d3 - 23" acer led monitors Logitech G15 1050W modular custom built from scratch case 
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CM Inferno afterglow wireless 7.1 headphones w/ mic x-fi titanium soundcard 
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post #3 of 7
My old board needed ~1.36-1.365V for 4.5ghz, it wasn't stellar.

Leave LLC as low as you can. If your board has good power management and your voltage doesn't spike, you can go to level 1 - otherwise, LLC that is too high will make your voltage drop like crazy while your CPU is under load. I find that even using LLC level 2 will make me BSOD almost instantly when I prime.

If it need be, try doing small bumps to your chipset voltages. Nothing too major. It usually isn't necessary for 4.5.

Also, try underclocking your memory to take it out of the equation.

Some CPUs might not get 4.5ghz. Its rare, but it can happen. If all else fails, go to 1.4Vcore and see if it works. Then slowly drop down as low as can be stable (how stable is up to you, some people are okay with 20 minutes but I personally don't take less than 8 hours of blend)
I hate my CPU
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2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
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I hate my CPU
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2500k | 4.7 Asrock Extreme3 Gen3 XFX 7970  Mushkin 1333 9-9-9-24 (2x4) 
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post #4 of 7
You need more vcore. For example, my chip needs a bit over 1.4 to be stable at 4.5 GHz.
My System
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Core i7-2600K @ 4.5 GHz w/ 1.4 V Gigabyte GA-P67A-UD3P-B3 MSI GTX 570 Twin Frozr III PE TeamGroup 1333 Mhz CL9 2x4 
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Samsung F3, F1, T166 Samsung Win 7 BenQ 24" 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7-2600K @ 4.5 GHz w/ 1.4 V Gigabyte GA-P67A-UD3P-B3 MSI GTX 570 Twin Frozr III PE TeamGroup 1333 Mhz CL9 2x4 
Hard DriveOptical DriveOSMonitor
Samsung F3, F1, T166 Samsung Win 7 BenQ 24" 
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Sapphire FirePSU 625 W Fractal Design R3 
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post #5 of 7
Thread Starter 
thanks for the advice everyone
550D
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CPUMotherboardGraphicsRAM
[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
Hard DriveHard DriveCoolingOS
[ Corsair 250GB Force GT ] [ Western Digital Caviar Black 1TB ] [ Corsair h100i ] [ Windows 7 64bit Home Premium ] 
MonitorPowerCase
[ ASUS ROG Swift 144hz ] [ Evga Supernova 750 Watt ] [ Corsair Obsidian 550D ] 
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550D
(16 items)
 
  
CPUMotherboardGraphicsRAM
[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
Hard DriveHard DriveCoolingOS
[ Corsair 250GB Force GT ] [ Western Digital Caviar Black 1TB ] [ Corsair h100i ] [ Windows 7 64bit Home Premium ] 
MonitorPowerCase
[ ASUS ROG Swift 144hz ] [ Evga Supernova 750 Watt ] [ Corsair Obsidian 550D ] 
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post #6 of 7
Thread Starter 
Alright I tried all those things and nothing worked. It seems the highest I can get it is 4.3. Which is fine, a 1ghz overclock is plenty.

edit: would setting the CPU PLL voltage higher help? if so what should I set it at?
550D
(16 items)
 
  
CPUMotherboardGraphicsRAM
[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
Hard DriveHard DriveCoolingOS
[ Corsair 250GB Force GT ] [ Western Digital Caviar Black 1TB ] [ Corsair h100i ] [ Windows 7 64bit Home Premium ] 
MonitorPowerCase
[ ASUS ROG Swift 144hz ] [ Evga Supernova 750 Watt ] [ Corsair Obsidian 550D ] 
  hide details  
Reply
550D
(16 items)
 
  
CPUMotherboardGraphicsRAM
[ Core i7 5820k ] [ ASUS X99 Deluxe ] [ MSI GTX 980 G4 Gaming x2 ] [ 12GB Corsair Dominator ] 
Hard DriveHard DriveCoolingOS
[ Corsair 250GB Force GT ] [ Western Digital Caviar Black 1TB ] [ Corsair h100i ] [ Windows 7 64bit Home Premium ] 
MonitorPowerCase
[ ASUS ROG Swift 144hz ] [ Evga Supernova 750 Watt ] [ Corsair Obsidian 550D ] 
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Reply
post #7 of 7
I don't think changing PLL would help, but you could increase QPI/VTT to 1.10-1.14 V.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7-2600K @ 4.5 GHz w/ 1.4 V Gigabyte GA-P67A-UD3P-B3 MSI GTX 570 Twin Frozr III PE TeamGroup 1333 Mhz CL9 2x4 
Hard DriveOptical DriveOSMonitor
Samsung F3, F1, T166 Samsung Win 7 BenQ 24" 
PowerCase
Sapphire FirePSU 625 W Fractal Design R3 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7-2600K @ 4.5 GHz w/ 1.4 V Gigabyte GA-P67A-UD3P-B3 MSI GTX 570 Twin Frozr III PE TeamGroup 1333 Mhz CL9 2x4 
Hard DriveOptical DriveOSMonitor
Samsung F3, F1, T166 Samsung Win 7 BenQ 24" 
PowerCase
Sapphire FirePSU 625 W Fractal Design R3 
  hide details  
Reply
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