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My bios vcore is 1.43 and cpuz is 1.36 for e8400

post #1 of 6
Thread Starter 
My e8400 on gigabyte ep35 ds3r vcore is 1.43 while my cpuz and speefan shows 1.36-1.37. Does that mean I am within intel's e8400 recommended voltage zone, does that mean my bios vcore reading is wrong.
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E8400 423*9 GA-EP35-DS3R BFG 8800GT OC2 OCZ DDR2 Vista Performance Platinum 4GB 
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E8400 423*9 GA-EP35-DS3R BFG 8800GT OC2 OCZ DDR2 Vista Performance Platinum 4GB 
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post #2 of 6
I would drop it some to be safe because your vcore will jump around per idle and differt loads.
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SABERWOLF
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XEON-WOLF
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CPUMotherboardGraphicsRAM
Intel Core i7-6800K MSI X99A GAMING PRO CARBON EVGA GTX 1080 FTW Hydro Copper G.SKILL TridentZ Series 
Hard DriveCoolingCoolingCooling
Samsung EVO 850 500 EK-SBAY Dual DDC 3.2 PWM Serial Alphacool NexXxoS ST30 Full Copper Radiator 360 Hardware Labs Black Ice SR2 Multiport Black Car... 
CoolingCoolingOSMonitor
EK-CoolStream RAD XTC 420 koolance 380i Windows 10 Pro ASUS VW246H Black 24" 2ms 
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SeaSonic M12D SS-850 850W  Thermaltake core x71 CM Storm Sentinel Advance II Corsair Void 
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X5675@4400 1.344 ASUS P6X58D-E XfX RX480 RS F3-12800CL7T-6GBPI 6-7-6-21 1T 
RAMHard DriveHard DriveHard Drive
F3-12800CL9S-4GBRL WDC WD1001FALS-00J7B1 ST31000340AS WDC WD7500AAKS-00RBA0 
Hard DriveOptical DriveCoolingOS
Hitachi HDS723020BLA642 ihas 624-A SilverStone Heligon HE01 windows 10 64 Pro 
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post #3 of 6
Drop it by two notches, only if you want to OC to your cpu's limits without hurting it at all. Uh, if you are at stock, leave it on auto or at VID.
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post #4 of 6
Quote:
Originally Posted by headpower View Post
My e8400 on gigabyte ep35 ds3r vcore is 1.43 while my cpuz and speefan shows 1.36-1.37. Does that mean I am within intel's e8400 recommended voltage zone, does that mean my bios vcore reading is wrong.
It means your board has quite a bit of vdroop. This means that the voltage you set in the bios drops lower when actually in use, and will drop lower under a fully loaded system. Check in your bios for a 'voltage buffer' or something to that tune which sounds like it will compensate for that. It'll be an enable/disable option. Check what happens to the voltage when sitting at idle, and when running a full load. Im not sure of the range, but If idle/load voltages are around 1.36-1.37 Im sure that will be fine.
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post #5 of 6
On my Gigabyte MB, the BIOS setting is called 'Loadline Calibration'. I had to update to the latest BIOS version for it to be available as an option. Just enable it and see if it makes a difference of Vcore idle and under load compared to it being off.

1.43 to 1.36 is quite a big Vdrop if you checking when idle.
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post #6 of 6
Thread Starter 
I dont think ep35 ds3r has load calibration, what does large vdroop have an affect on cpu, i just clock my cpu to 3.8ghz with 1.33v (bios) and 1.310 idle and 1.280 under 100% load. say i want to try to get my cpu to 4.0ghz in the future,if my cpuz/hardware monitor software vcore is within the intel spec while the bios voltage is liek 1.4 to 1.43 does it matter. What dose large vdroop has an affect on cpu.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 423*9 GA-EP35-DS3R BFG 8800GT OC2 OCZ DDR2 Vista Performance Platinum 4GB 
Hard DriveMonitorPowerCase
Seagate 500GB Samsung 2253BW CoolMaster 550W Extreme Power Thermatake Tsunami Case 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 423*9 GA-EP35-DS3R BFG 8800GT OC2 OCZ DDR2 Vista Performance Platinum 4GB 
Hard DriveMonitorPowerCase
Seagate 500GB Samsung 2253BW CoolMaster 550W Extreme Power Thermatake Tsunami Case 
  hide details  
Reply
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