Overclock.net › Forums › Intel › Intel CPUs › Safest QPI on 980x?
New Posts  All Forums:Forum Nav:

Safest QPI on 980x?

post #1 of 14
Thread Starter 
Two questions for those who might know:

1) I am attempting to overclock my RAM. My QPI is at 1.35v and I was told that I shouldn't go any higher than this or it will cause damage. My timings currently suck. I lowest I can get to is CL8 at 1600MHz.

Q1) Is it safe to raise my QPI to 1.4v for 24/7 use or is that dangerous?

2) I am also overclocking my CPU, the 980x. I was also told not to go past 1.35v here as well but like the above, I am considering going to 1.4v for 24/7 use.

Q2) Is it safe to raise my CPU to 1.4v for 24/7 use or is that dangerous?
post #2 of 14
what is your max temp under a stress test like intel extreme burn-in?
if your at 75c or under, you should be just fine.
Don't Panic
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 450M @ 2.4GHz Samsung Q430/Q530 Nvidia GeForce 310M Elpida 4GB DDR3 @ 533MHz 
Hard DriveOptical DriveOSMonitor
WD 500GB DVD Burner Windows 7 x64 Integrated 1336x786 LCD 
KeyboardPowerCaseMouse
Saitek Cyborg v.5 Battery Laptop Logitech G500 
  hide details  
Reply
Don't Panic
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 450M @ 2.4GHz Samsung Q430/Q530 Nvidia GeForce 310M Elpida 4GB DDR3 @ 533MHz 
Hard DriveOptical DriveOSMonitor
WD 500GB DVD Burner Windows 7 x64 Integrated 1336x786 LCD 
KeyboardPowerCaseMouse
Saitek Cyborg v.5 Battery Laptop Logitech G500 
  hide details  
Reply
post #3 of 14
Thread Starter 
I'm currently running on water.

I idle at around 19-23C and on load I have never ever seen my temps exceed 60C at 4.4GHz 1.35v.

I just want to make sure my CPU lasts me a good 4 years. I totally appreciate your input. Are you sure it's still safe for 24/7 use?

May I please have a second opinion from somebody? Or possibly a Devil's advocate?
post #4 of 14
Crashing in from your other thread. First of all, the major concern on the 980x is temperatures. Keep them below 70* on IBT and LinX. Second, your QPI/VTT can take a little more voltage than your core can safely. That being said, unless you've got a sweet loop running, you probably shouldn't go over 1.375v on the core and 1.4v on the QPI/VTT.

Edit: Just saw your response. Looks like you're doing fine on temps. I'd still stay under 1.375v if you want your chip to last more than a few years. 1.4v would probably work for a year or two if you're the more dangerous type.
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
post #5 of 14
Thread Starter 
Well the last thing I want do to is go beyond Intel recommended specs. I see people posting different Intel specs. I see some saying 1.4v for both and others saying 1.35v and others with mixed. Is there an Intel list somewhere I could see? I do NOT want to go above because I want the maximum lifetime.

Can someone help?

Also, when you say 1.375v, does that mean SET IT IN THE BIOS at 1.375v (is there a word for this?) or make sure that it doesn't go above 1.375v EVER?

EDIT: I guess also same question with QPI. Set it to 1.4 in BIOS or like 1.39 and never let it get PAST 1.4?
Edited by xyeLz - 2/23/11 at 8:58pm
post #6 of 14
Here's your spec sheet:
http://ark.intel.com/Product.aspx?id=47932

Voltage stated refers to voltage in BIOS. Still, if you're seeing a large fluctuation in voltage levels you may look into your Load Line Calibration settings as well as monitoring your different voltage outputs from your PSU during stress testing. I use an AX1200 as well due to it's incredibly low voltage ripple. If you're experiencing Vdroop you may have a bum PSU.
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
post #7 of 14
Thread Starter 
Quote:
Originally Posted by mymlan View Post
Here's your spec sheet:
http://ark.intel.com/Product.aspx?id=47932

Voltage stated refers to voltage in BIOS. Still, if you're seeing a large fluctuation in voltage levels you may look into your Load Line Calibration settings as well as monitoring your different voltage outputs from your PSU during stress testing. I use an AX1200 as well due to it's incredibly low voltage ripple. If you're experiencing Vdroop you may have a bum PSU.
Aye, they don't list voltages for the QPI or anything? Just the VID (which I assume is the CPU voltage)?

The only fluctuation I have ever seen is usually 1.349 or 1.356 though it has occasionally gone to 1.363. Is that good or bad vdroop?
post #8 of 14
It's more important to watch the fluctuations on the individual rails. Don't worry about it too much at this point. I've been looking around for suggested QPI/VTT for 2Ghz RAM. G.Skill suggest 1.55v:
http://gskill.us/forum/showthread.php?t=1166

While this refers to 45nm chips, I don't disbelieve that it'd be too far off. Your CPU was rated at 1066Mhz, and you're trying to run it at nearly double that. If we stuck to Intel specs too closely we'd never had OCN. :]
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
post #9 of 14
Thread Starter 
Quote:
Originally Posted by mymlan View Post
It's more important to watch the fluctuations on the individual rails. Don't worry about it too much at this point. I've been looking around for suggested QPI/VTT for 2Ghz RAM. G.Skill suggest 1.55v:
http://gskill.us/forum/showthread.php?t=1166

While this refers to 45nm chips, I don't disbelieve that it'd be too far off. Your CPU was rated at 1066Mhz, and you're trying to run it at nearly double that. If we stuck to Intel specs too closely we'd never had OCN. :]
I'm still really nervous as this is my first overclock and I spent all this dough on my computer and don't want to have it die on me.

1) I'm not quite sure what you mean when you say "individual rails". Does that mean that my fluctuation from 1.35 (1.349 - 1.356 - 1.363) is within safe boundaries to increase my voltage to 1.375 and run 24/7? What if it fluctuates from 1.375 to 1.385?

2) I keep seeing people say that 1.4v QPI should be the maximum. Why does G.Skill say 1.55v? That would make me nervous, especially since I don't have cooling on my NB except for case fans and it's my first time overclocking. I guess I just wanna know if 1.4v is even safe?
post #10 of 14
It's alright to be a little timid on your first overclock. I still am. Still, it should be fine to go up to 1.375v for the CPU and 1.4v for QPI/VTT in the BIOS. Don't worry about voltage ripple, I'm sure it won't impact your OC. It would be much more noticeable when stressing your GPU anyway.

Remember that it's more about temperatures than it is about voltage. Stay within those suggested voltages and under 70°C and you should be golden. The 980x is a hell of a lot of fun!
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
Leviathan
(13 items)
 
Workstation
(10 items)
 
Alexandria
(11 items)
 
CPUMotherboardGraphicsRAM
i7 980X @ 4.3 HT on Asus P6T Deluxe V2 Radeon 5970 + GT 240 PHYSX Corsair 12gb (horrible) 
Hard DriveOSMonitorPower
64GB SSD boot + Raid 10 WDC Blues Pirated Win 7 (duh) Alienware AW2310 Corsair AX1200 
Case
Antec 902 Modded 
CPUMotherboardRAMHard Drive
Xeon E3-1265L V2 Asus P8C WS Kingston 32GB 1600MHz ECC Crucial M4 256GB 
CoolingOSPowerAudio
Corsair H50 ESXi 6.0RC Corsair HX1000 Focusrite Scarlett 18i20 
Other
Mellanox MNPA19-XTR 
CPUMotherboardGraphicsRAM
Dual Intel Xeon L5630 Supermicro X8DTH-6F Radeon 7750 64GB 1066MHz Registered DDR3 
Hard DriveHard DriveCoolingOS
4 x 4TB Hitachi SAS Ultrastar Crucial M4 256GB Dual NH-U9DX i4 vSphere 6.0RC 
PowerCaseOther
Corsair AX1200 Norco RPC-4220 Mellanox MNPA19-XTR 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Safest QPI on 980x?