Overclock.net › Forums › Intel › Intel CPUs › E6420 Overclocking Help
New Posts  All Forums:Forum Nav:

E6420 Overclocking Help

post #1 of 18
Thread Starter 
As you can see, I've been overclocking this E6420, and right now it's not going as well as I'd hoped. Right now it's at 405x8 which means 3240Mhz. For some reason, however, it requires 1.48 volts to get there; any lower, and the motherboard doesn't POST. However, at 1.48 volts, it's Orthos stable for over ten hours. Is there any way to explain this?

Also, I've tried to get it up to 415x8, but it requires over 1.5 volts to get there. The RAM is running below rated speed at the recommended timings, and the RAM voltage is correct, so I don't think the RAM is a problem, and I've upped the northbridge voltage some, too. Any ideas what's going on?
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
post #2 of 18
Sounds like you just have a volt hungry cpu. It's the only explanation I can give, especially if you try any lower of a volt setting than you have and its unstable. That to me is a pretty clear indication that your chip is just requiring that amount of voltage to stay stable.


You may want to try putting a fan on your NB if you haven't already. Also you may want to try and loosen your ram timings, for example going to a 2t command rate if you are at 1t. Can you give a little more specifics? It however still sounds like a voltage issue with your cpu wanting a lot of them!
Always Changing
(13 items)
 
  
CPUGraphicsRAMHard Drive
12 threads of euphemism Bash me! It's not your color! Loose. THAT'S WHAT SHE SAID! Just enough for all my cp 
OSMonitorPower
linux for gaming plethora of pixels plethora of watts 
  hide details  
Reply
Always Changing
(13 items)
 
  
CPUGraphicsRAMHard Drive
12 threads of euphemism Bash me! It's not your color! Loose. THAT'S WHAT SHE SAID! Just enough for all my cp 
OSMonitorPower
linux for gaming plethora of pixels plethora of watts 
  hide details  
Reply
post #3 of 18
Quote:
Originally Posted by mentholmoose View Post
As you can see, I've been overclocking this E6420, and right now it's not going as well as I'd hoped. Right now it's at 405x8 which means 3240Mhz. For some reason, however, it requires 1.48 volts to get there; any lower, and the motherboard doesn't POST. However, at 1.48 volts, it's Orthos stable for over ten hours. Is there any way to explain this?

Also, I've tried to get it up to 415x8, but it requires over 1.5 volts to get there. The RAM is running below rated speed at the recommended timings, and the RAM voltage is correct, so I don't think the RAM is a problem, and I've upped the northbridge voltage some, too. Any ideas what's going on?
Pretty much what was said by the other reply, not all CPU's can scale higher than 3.2Ghz especially one that started as low as yours does at stock. That's a hefty overclock already. You should be happy with it.
 
X79 Build
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7-6950X @ 4.0Ghz Asus Rampage V Extreme [Bios:3101] 2x EVGA GeForce Titan X SC Editions in SLI 32GB (4×8) Corsair Dominator Platinums (3000Mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 950 Pro 512GB M.2 Nvme 2x 256GB Vertex 4 SSD (RAID-0) 2x 2TB Seagate Barracuda [Storage] Pioneer BDR-207DBK Blu-ray Writer 
CoolingOSMonitorPower
Corsair H105 (Push/Pull) Windows 10 Pro x64 2x 27" Asus PG278Q ROG Swift 144hz  Corsair AX1500i Digital ATX 80 Plus Titanium 
CaseAudio
Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
i7-3930K (C2) @ (4.6Ghz) Asus Rampage IV Extreme X79 (Bios 3204) 3x EVGA GTX780Ti's SC Editions 32GB (4x8GB) G-Skill TridentX 2400Mhz 
Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
OSMonitorPowerCase
Win7 Pro 64Bit & Win10 Pro 64Bit Asus ROG Swift (2560x1440 @144hz) Corsair AX1200 + Corsair RED sleeved cables Coolermaster Cosmos II Ultra 
  hide details  
Reply
 
X79 Build
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7-6950X @ 4.0Ghz Asus Rampage V Extreme [Bios:3101] 2x EVGA GeForce Titan X SC Editions in SLI 32GB (4×8) Corsair Dominator Platinums (3000Mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 950 Pro 512GB M.2 Nvme 2x 256GB Vertex 4 SSD (RAID-0) 2x 2TB Seagate Barracuda [Storage] Pioneer BDR-207DBK Blu-ray Writer 
CoolingOSMonitorPower
Corsair H105 (Push/Pull) Windows 10 Pro x64 2x 27" Asus PG278Q ROG Swift 144hz  Corsair AX1500i Digital ATX 80 Plus Titanium 
CaseAudio
Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
i7-3930K (C2) @ (4.6Ghz) Asus Rampage IV Extreme X79 (Bios 3204) 3x EVGA GTX780Ti's SC Editions 32GB (4x8GB) G-Skill TridentX 2400Mhz 
Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
OSMonitorPowerCase
Win7 Pro 64Bit & Win10 Pro 64Bit Asus ROG Swift (2560x1440 @144hz) Corsair AX1200 + Corsair RED sleeved cables Coolermaster Cosmos II Ultra 
  hide details  
Reply
post #4 of 18
Thread Starter 
Hmm... OK. Meh, I guess I'll have to live with a volt-hungry CPU for the time-being. Luckily it runs everything at 2.88Ghz on stock voltage, so I'll keep it there to keep temps down (almost a 10C drop in load temps from 3.22Ghz).
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
post #5 of 18
Quote:
Originally Posted by mentholmoose View Post
Hmm... OK. Meh, I guess I'll have to live with a volt-hungry CPU for the time-being. Luckily it runs everything at 2.88Ghz on stock voltage, so I'll keep it there to keep temps down (almost a 10C drop in load temps from 3.22Ghz).

1.48volts is not bad! I would just leave it there IF your temps are fine!
Always Changing
(13 items)
 
  
CPUGraphicsRAMHard Drive
12 threads of euphemism Bash me! It's not your color! Loose. THAT'S WHAT SHE SAID! Just enough for all my cp 
OSMonitorPower
linux for gaming plethora of pixels plethora of watts 
  hide details  
Reply
Always Changing
(13 items)
 
  
CPUGraphicsRAMHard Drive
12 threads of euphemism Bash me! It's not your color! Loose. THAT'S WHAT SHE SAID! Just enough for all my cp 
OSMonitorPower
linux for gaming plethora of pixels plethora of watts 
  hide details  
Reply
post #6 of 18
either way, 2.88 and 3.22 are very respectable speeds for a CPU that runs a mere 2.13 stock.
ask yourself this: do I even NEED that much speed?
post #7 of 18
Quote:
Originally Posted by NCspecV81 View Post
1.48volts is not bad!
1.48 volts is insane. i've OC'ed an E6400 and E6420 to 3.2 @ 1.325 Volts without so much as a hiccup. i'd never set my voltage that high - i can't afford to replace my parts.

you're sure the rest of your OC is the way it should be? 975X chipset is a pretty good overclocker.
The C'roe
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6320 @ 2.8 Asus P5W DH Deluxe (2) Radeon X1900XTX CF 2GB G.Skill HK 4-4-3-5 
Hard DriveOptical DriveOSMonitor
640 - 2x320 Samsung RAID-0 Dual DVDs XP MCE Acer 22" + Dell 19" LCDs - 2960x1024 rez :D 
KeyboardPowerCaseMouse
Logitech MX Zalman 600W RT Modified Antec 900 Logitech MX 
Mouse Pad
Giant 
  hide details  
Reply
The C'roe
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6320 @ 2.8 Asus P5W DH Deluxe (2) Radeon X1900XTX CF 2GB G.Skill HK 4-4-3-5 
Hard DriveOptical DriveOSMonitor
640 - 2x320 Samsung RAID-0 Dual DVDs XP MCE Acer 22" + Dell 19" LCDs - 2960x1024 rez :D 
KeyboardPowerCaseMouse
Logitech MX Zalman 600W RT Modified Antec 900 Logitech MX 
Mouse Pad
Giant 
  hide details  
Reply
post #8 of 18
Thread Starter 
Quote:
Originally Posted by NCspecV81 View Post
1.48volts is not bad! I would just leave it there IF your temps are fine!
My load temps are nearing 60C at 1.48volts and 3.24Ghz. It dropped down to about 44C when at 2.88Ghz and stock volts, so I think I'm happier with the temps there. Maybe I'll lap the heatsink and CPU to see if that'll bring them down.

Quote:
Originally Posted by MrBungle View Post
1.48 volts is insane. i've OC'ed an E6400 and E6420 to 3.2 @ 1.325 Volts without so much as a hiccup. i'd never set my voltage that high - i can't afford to replace my parts.

you're sure the rest of your OC is the way it should be? 975X chipset is a pretty good overclocker.
You must've had a better stepping than I do, because mine only gets up to about 3Ghz at 1.35volts - the lowest the BIOS will allow - and it just escalates exponentially from there. I'm pretty sure the rest of the overclock is working correctly. RAM timings set to stock at lower than the correct speeds, any reason that wouldn't work? I also gave a little bit more voltage to the northbridge as well as the VTT, whatever that is.

By the way, I'm not on the 975X, I'm on the P35 chipset, which is supposed to overclock even better, I thought.
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
Macbook
(17 items)
 
  
CPUGraphicsRAMHard Drive
Intel P8600 @ 2.4Ghz Geforce 9400M 6GB Crucial DDR3-1066 OCZ Vertex 2 128GB 
Hard DriveOptical DriveOSOS
External 1TB Broken and Making Funny Noises OS X Lion Windows 8 Preview 
MonitorMonitorKeyboardPower
13.3" 1280x800 Dell 2407WFP-HC Backlit Lithium-Polymer Battery 
CaseMouseAudio
Unibody Multi-Touch Trackpad JVC Marshmallow's 
  hide details  
Reply
post #9 of 18
um..granted i use water cooling, but i have my vcore on 1.48 (1.44 in windows XP after vdroop) and i have a VERY stable 3.6ghz with my e6420. temps hit bout 50c at Orthos max load. idles are VERY low.

maybe like they say, power hungry CPU. or consider better cooling?

to hit 3.2ghz, i didnt have to touch anything. i put the volts to 1.375 and was stable for 10+ hours in Orthos. it stopped coz my mate started doin **** on my comp the dumbarse.

u made sure ur RAM multiplier is set right? should be double the FSB. IE 405 x 2 = 810mhz...
Dr. Gonzo
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k Gigabyte X79-UD3 ASUS GTX Titan X 16GB G.Skill Ripjaws Z C9 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO SSD 2TB Crucial M4 256GB Lite-On Blu-Ray Writer Swiftech Apogee Drive II 
OSMonitorKeyboardPower
Windows 10 Home Premium 64-Bit ASUS ROG Swift PG278Q 27" Tesoro Durandal Silverstone 850w Strider 
CaseMouseAudio
Antec Eleven Hundred Logitech G502 Creative SoundBlaster Zx 
  hide details  
Reply
Dr. Gonzo
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k Gigabyte X79-UD3 ASUS GTX Titan X 16GB G.Skill Ripjaws Z C9 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO SSD 2TB Crucial M4 256GB Lite-On Blu-Ray Writer Swiftech Apogee Drive II 
OSMonitorKeyboardPower
Windows 10 Home Premium 64-Bit ASUS ROG Swift PG278Q 27" Tesoro Durandal Silverstone 850w Strider 
CaseMouseAudio
Antec Eleven Hundred Logitech G502 Creative SoundBlaster Zx 
  hide details  
Reply
post #10 of 18
I am at 3.4ghz with 1.5v. Temps never get to 60. Low to mid 50's most of the time. Orthos stable 6+ hours. I think it was 9 hours. Plus ive been SMP folding on it for a month now, 24/7. I think as long as temps are good you are fine with your voltage, whatever it may be. Most E6420's ive seen have gone past 3.2ghz no problem. Xbitlabs got it to 3.7 on air. That doesnt mean every single one should OC past that, but most seem to be able to.
Back to AMD
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1055T ASUS M4A89TD PRO GTX 260 G.SKILL ECO 2x2GB 
Hard DriveOSMonitorKeyboard
WD 500GB Win7 19" BenQ LCD Microsoft 
PowerCaseMouse
700W OCZ Cooler Master Elite Logitech G5 
  hide details  
Reply
Back to AMD
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1055T ASUS M4A89TD PRO GTX 260 G.SKILL ECO 2x2GB 
Hard DriveOSMonitorKeyboard
WD 500GB Win7 19" BenQ LCD Microsoft 
PowerCaseMouse
700W OCZ Cooler Master Elite Logitech G5 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › E6420 Overclocking Help