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Stock C2D E6400 Vcore

Joined
Sep 9, 2006
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994 (0.24/day)
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Location
SoCal
Processor Intel C2D E6420 (3.2 gHz @ 1.365v)
Motherboard Gigabyte 965P-DS3
Cooling Zalman CNPS9500 LED
Memory 4 x 512mb Corsair XMS2 DDR2 667
Video Card(s) Visiontek HD 4870 512mb
Storage 200gb Maxtor SATA, 400gb WD SATA
Audio Device(s) Audigy 2 ZS
Software Windows XP Pro SP2
#1
Just like the title says, what is the stock vcore for an E6400? A post from overclock.net says "It depends, the A revision CPUs have a 1.325vcore as standard, and the B revision CPUs have a 1.2vcore as standard." So since CPU-Z says my CPU revision is B2, I *should* be getting 1.2 stock... but my mobo puts it at 1.36v on auto.

Also... does anyone know why CPU-Z's vcore measurement is different than the motherboard's? If I set 1.3v in the BIOS, CPU-Z and Everest both read it at 1.28 or some other number lower than 1.3v... which reading can I trust?

Any information will be appreciated :D
 
Joined
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Processor Intel Core i7 6700K @ 4,8 GHz
Motherboard Asus Z170 Pro Gaming
Cooling Alpenfön Brocken 2
Memory 32 GB G.Skill DDR4-3000
Video Card(s) Asus DirectCU II R290
Storage 1 TB HD + 180 GB SSD + 500 GB SSD
Display(s) Philips BDM4065 39,95" Ultra-HD
Case Antec P280
Audio Device(s) Onboard HD sound on 5.1 system
Power Supply Silverstone SST-ST85F-GS Strider Gold Series - 850 Watt
Software Windows 10 Pro x64
#2
The Auto setting may be wrong because your BIOS doesn't recognize the B2 stepping yet. And you can't trust neither your BIOS, CPU-Z or Everest for the real vcore, it's all more or less estimates. If you want the real voltage, you'll need a voltmeter ;)
 
Joined
Sep 9, 2006
Messages
994 (0.24/day)
Likes
28
Location
SoCal
Processor Intel C2D E6420 (3.2 gHz @ 1.365v)
Motherboard Gigabyte 965P-DS3
Cooling Zalman CNPS9500 LED
Memory 4 x 512mb Corsair XMS2 DDR2 667
Video Card(s) Visiontek HD 4870 512mb
Storage 200gb Maxtor SATA, 400gb WD SATA
Audio Device(s) Audigy 2 ZS
Software Windows XP Pro SP2
#3
:(
I was hoping that it wouldn't come down to that
 
Joined
Feb 27, 2005
Messages
176 (0.04/day)
Likes
6
Processor Intel Core i7 6700K @ 4,8 GHz
Motherboard Asus Z170 Pro Gaming
Cooling Alpenfön Brocken 2
Memory 32 GB G.Skill DDR4-3000
Video Card(s) Asus DirectCU II R290
Storage 1 TB HD + 180 GB SSD + 500 GB SSD
Display(s) Philips BDM4065 39,95" Ultra-HD
Case Antec P280
Audio Device(s) Onboard HD sound on 5.1 system
Power Supply Silverstone SST-ST85F-GS Strider Gold Series - 850 Watt
Software Windows 10 Pro x64
#4
It's perfectly normal that you get a bit of fluctuation in the readings between BIOS and CPU-Z. In the end, the voltage doesn't really matter if your CPU is stable and not too hot. So if you set the voltage to 1.2v in the BIOS and your machine is stable and you can run some stresstests without problem, everything's fine. If you need more voltage, fine too, as long as it's stable and within normal temps.