Overclock.net › Forums › Intel › Intel CPUs › Help Me Switch To Offset Voltage!
New Posts  All Forums:Forum Nav:

Help Me Switch To Offset Voltage!

post #1 of 10
6/20/12 at 7:05am
Thread Starter 
I finally guesstimated some settings for a 4.8GHz OC and now I got it stable with 1.455v (probably could go lower). Now I have read 2 or 3 guides on how to "offset" but I simply can't understand it. Would somebody be so kind as explain it in simpler terms for me? My VID in Realtemp with P95 going is 1.3761 and CPU-z shows 1.448(jumps to 1.456 occasionally).
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
post #2 of 10
6/20/12 at 7:08am

What you are experiencing is probably vdroop or LLC/ Load Line Calibration related.

 

I lowered my offset so I idle at 0.9v and then I used additional turbo voltage to get where I wanted my vcore. But the huge jumps can lead to occasional BSODs according to some people. I haven't experienced any. I also have C3/C6 enabled unlike other people.

 

I have 1C - 46x

2C - 45x

3C - 44x

4C - 43x

 

I would go by the CPU-Z reading. 1.45v sounds more realistic for 4.8GHz

 

All I can say is keep reading guides.

http://sinhardware.com/index.php/overclockingoc-guides


Edited by jonashendrickx - 6/20/12 at 7:12am
Reply
Reply
post #3 of 10
6/20/12 at 7:10am
  • Joined: Nov 2009
  • Location: Cleveland, OH
  • Posts: 3,023
  • Rep: 213 (Unique: 138)
  • Trader Rating: 4
  • Folding Team Rank: 1,184
  •  
    Name Team Rank Points / May Work Units / May
    Hambone07si 1,184 1,398,762 / 0 799 / 0
     
  • Select All Posts By This User
Easy way is to set to +.050v and then load prime for a min and see where your voltage goes in cpuZ. Then adjust accordingly up or down as needed to get your 1.455v.

That's a lot of Vcore for a 4.8ghz overclock on that chip. You may need to adjust some mobo settings to bring it down. Post up your Digi+ Vrm settings and I'll tell you what to change. No Tprobe for 4.8ghz. Set phase to Extreme (this is one that will bring Vcore down a bunch) if it's not already.

LLC set to Ultra High
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
post #4 of 10
6/20/12 at 7:12am
It's pretty easy. The voltage shown by cpu-z is your vcore after Vdroop (because you're under load). If 1.455 is what you have set as your Vcore in bios, then just go 1.455 - 1.3761 = .0789. So try a +.08 offset and set C1E and speedstep to enable so your cpu can downclock and undervolt when not under load.

Offset = Vcore-VID
My Rig
(14 items)
  		  
CPUMotherboardGraphicsRAM
Intel Core i7 3770k P8Z68-V GEN3 MSI GeForce GTX 670 Power Edition G. Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair Force Series 3 Seagate Barracuda ASUS DVD Burner Corsair H100 
OSMonitorMonitorPower
Microsoft Windows 7 Professional Samsung EX2220 21.5" 1920x1080 Acer 21.5" 1920x1080 Corsair HX750 
Case
NZXT Tempest 410 Elite 
View all
  hide details  
Reply
My Rig
(14 items)
  		  
CPUMotherboardGraphicsRAM
Intel Core i7 3770k P8Z68-V GEN3 MSI GeForce GTX 670 Power Edition G. Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair Force Series 3 Seagate Barracuda ASUS DVD Burner Corsair H100 
OSMonitorMonitorPower
Microsoft Windows 7 Professional Samsung EX2220 21.5" 1920x1080 Acer 21.5" 1920x1080 Corsair HX750 
Case
NZXT Tempest 410 Elite 
View all
  hide details  
Reply
post #5 of 10
6/20/12 at 7:14am
Thread Starter 
Quote:
Originally Posted by Hambone07si View Post

Easy way is to set to +.050v and then load prime for a min and see where your voltage goes in cpuZ. Then adjust accordingly up or down as needed to get your 1.455v.

That's a lot of Vcore for a 4.8ghz overclock on that chip. You may need to adjust some mobo settings to bring it down. Post up your Digi+ Vrm settings and I'll tell you what to change. No Tprobe for 4.8ghz. Set phase to Extreme (this is one that will bring Vcore down a bunch) if it's not already.

LLC set to Ultra High

Is it really that much voltage for 4.8? I'll post pics in a minute.
Quote:
Originally Posted by jonashendrickx View Post

What you are experiencing is probably vdroop or LLC/ Load Line Calibration related

Its on Ultra-high right now.


338
338
Edited by bigkahuna360 - 6/20/12 at 7:19am
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
post #6 of 10
6/20/12 at 7:54am
  • Joined: Nov 2009
  • Location: Cleveland, OH
  • Posts: 3,023
  • Rep: 213 (Unique: 138)
  • Trader Rating: 4
  • Folding Team Rank: 1,184
  •  
    Name Team Rank Points / May Work Units / May
    Hambone07si 1,184 1,398,762 / 0 799 / 0
     
  • Select All Posts By This User
Yeah I'd say that's pretty high as I've had a few that done 5ghz with 1.344-1.392
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
post #7 of 10
6/20/12 at 7:55am
Thread Starter 
Quote:
Originally Posted by Hambone07si View Post

Yeah I'd say that's pretty high as I've had a few that done 5ghz with 1.344-1.392

I blame the P67 mobo....

EDIT: I'm slowly lowering my voltage in manual as when I tried to switch it to a .08 offset and I crashed instantly with a 124.
Edited by bigkahuna360 - 6/20/12 at 8:05am
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
post #8 of 10
6/20/12 at 9:40am
  • Joined: Nov 2009
  • Location: Cleveland, OH
  • Posts: 3,023
  • Rep: 213 (Unique: 138)
  • Trader Rating: 4
  • Folding Team Rank: 1,184
  •  
    Name Team Rank Points / May Work Units / May
    Hambone07si 1,184 1,398,762 / 0 799 / 0
     
  • Select All Posts By This User
Quote:
Originally Posted by bigkahuna360 View Post

I blame the P67 mobo....
EDIT: I'm slowly lowering my voltage in manual as when I tried to switch it to a .08 offset and I crashed instantly with a 124.

Put a USB flash drive in the back of your mobo and hit "F12" in the bios for your Digi+ Vrm settings like I said before. Post the screen shot and we'll see if there's a few things you can do to get lower Vcore.
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
post #9 of 10
6/20/12 at 11:17am
Thread Starter 
Quote:
Originally Posted by Hambone07si View Post

Quote:
Originally Posted by bigkahuna360 View Post

I blame the P67 mobo....
EDIT: I'm slowly lowering my voltage in manual as when I tried to switch it to a .08 offset and I crashed instantly with a 124.

Put a USB flash drive in the back of your mobo and hit "F12" in the bios for your Digi+ Vrm settings like I said before. Post the screen shot and we'll see if there's a few things you can do to get lower Vcore.

Here you go.

120620125549.zip 414k .zip file
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
Octomonkey Industries Prototype
(15 items)
  		  
CPUMotherboardGraphicsRAM
i5 3570k ASRock Z77E-ITX EVGA GTX 680 8GBs Samsung 30nm DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
2TB Hitachi OCZ 128GB Vertex 4 HP BD240i DT 5Noz CPU Block 
OSMonitorKeyboardPower
Windows 7 Enterprise x64 Achieva Shimian IPSB  Logitech MX 5000 Corsair AX1200 
CaseMouseMouse Pad
Bitfenix Prodigy Midnight Black Logitech Performance MX Mouse Steelseries Diablo III 
View all
  hide details  
Reply
post #10 of 10
6/21/12 at 7:55pm
  • Joined: Nov 2009
  • Location: Cleveland, OH
  • Posts: 3,023
  • Rep: 213 (Unique: 138)
  • Trader Rating: 4
  • Folding Team Rank: 1,184
  •  
    Name Team Rank Points / May Work Units / May
    Hambone07si 1,184 1,398,762 / 0 799 / 0
     
  • Select All Posts By This User
That's a little much on the VCCIO even with 16gigs of ram. I'd try raising your CPU PLL to 1.700v and see how low you can go with Vcore and see what happens.I've never got better results with less than 1.7v but others have gone down to 1.500-1.550v. On manual mode with Vcore, I'd set C3 & C6 to Enabled and see how your temps change too. You should get way better idle temps and they will be closer core to core. With offset mode you will want to Disable C3 & C6 to prevent idle BSOD's.
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
Tech Bench
(15 items)
  		  
CPUCPUMotherboardGraphics
Work 3930k@4.8ghz1.375v Home 2700k 5ghz 1.425v / Max boot 56x 1.575v / ... Maximus 4 Extreme-Z Home / X79 Sabertooth Work Diamond 7970 1200/1600 1.174v 42c Load EK Aceta... 
GraphicsRAMHard DriveOptical Drive
VisionTek 7970 1200/1600 1.174v  Dominator GT 8gb @1866mhz 8-8-8-20-1t / 12gigs ... 2 x Vertex 3 120gig Raid 0.. 1gb/s of goodness  22x DVDrw 
OSMonitorKeyboardPower
Windows 7 64 ult / Window 7 64 pro Dell 30" U3011 1600p / Samsung 55" Led 6500 G15 Corsair AX1200 / Corsair TX650 
CaseMouse
Custom Tech Bench / Corsair 400R  Rat 7 / Logitech and Space Pilot Pro 
View all
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Help Me Switch To Offset Voltage!