• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Athlon64 X2 Default voltage: 1.3, 1.35, or 1.4?

Poisonsnak

New Member
Joined
Feb 13, 2005
Messages
362 (0.08/day)
Likes
18
Location
Saskatoon, SK
Processor FX-8150
Motherboard Gigabyte 990FXA-UD3
Cooling Thermalright Ultra-120 Extreme lapped & shimmed
Memory Patriot Viper Extreme 8GB DDR3-1866 9-11-9-27 1.65V
Video Card(s) MSI 6950 2GB Twin Frozr II @ 6970 875/1375
Storage Crucial M4 0309 64GB
Display(s) Dell U2410
Case Corsair 650D
Audio Device(s) onboard
Power Supply Corsair AX750
Software Windows [8] Developer Preview
#1
I have an Athlon64 X2 4400+, OPN - ADA4400DAA6CD.

www.amdcompare.com lists the voltage as "1.35V - 1.40V"

this OPN decoder: http://www.amdboard.com/amd64_opn.html lists it as "1.35V - 1.40V" also

Techpowerup's CPU database lists it as 1.30V. Also most review sites I have seen list it as 1.30V like this one: http://www.lostcircuits.com/cpu/amd_x2-3800+/. Finally, my A8N-SLI Premium with latest BIOS (1009) uses 1.30V if you put Vcore to auto. The Vcore monitor is very accurate because if I set 1.35V in the BIOS that's exactly what it reads in the hardware monitor.

Mine is stable at stock at 1.30V so I'm fine there I'm just wondering if anyone knows who is right, if 1.30 turns out to be wrong then I'd like to let the techpowerup guys know and get the list updated, but 1.30 seems like a very strong consensus out there.
 

Christer

New Member
Joined
Feb 7, 2005
Messages
106 (0.02/day)
Likes
0
Location
London
Processor AMD San Diego 4000
Motherboard Asus
Cooling Vapochill and 6 fans
Memory 1GB Platinum XMS at 225mhz
Video Card(s) Gainward 7800GTX
Storage total ca. 600GB
Display(s) Acer 19"
Case P180
Audio Device(s) Creative
Power Supply Enermax Noisetaker 465W
Software XP Pro
#2
I think if you bear in mind that for example the Vcore shown in my bios and what sysmonitor and cpu-z show them as are ALL different as well.....your question is almost pointless...:wtf: :D
 

Poisonsnak

New Member
Joined
Feb 13, 2005
Messages
362 (0.08/day)
Likes
18
Location
Saskatoon, SK
Processor FX-8150
Motherboard Gigabyte 990FXA-UD3
Cooling Thermalright Ultra-120 Extreme lapped & shimmed
Memory Patriot Viper Extreme 8GB DDR3-1866 9-11-9-27 1.65V
Video Card(s) MSI 6950 2GB Twin Frozr II @ 6970 875/1375
Storage Crucial M4 0309 64GB
Display(s) Dell U2410
Case Corsair 650D
Audio Device(s) onboard
Power Supply Corsair AX750
Software Windows [8] Developer Preview
#3
I know vcore monitor circuits tend to be inaccurate but what I meant by

"The Vcore monitor is very accurate because if I set 1.35V in the BIOS that's exactly what it reads in the hardware monitor."

is that my board does not follow this trend.

This is a side point to my question anyway, what I want to know is what voltage are these CPUs supposed to be set at? I have already decided to run mine at 1.30V, I was just doing some preliminary 'research' if you will before I tell the guys who run the site that they should change the listed voltage for the X2s from 1.30 to "1.35 - 1.40" as officially specified by AMD.
 
Joined
Apr 11, 2005
Messages
2,722 (0.58/day)
Likes
44
Location
Canada
Processor Intel Q6600
Motherboard DFI LanParty P35-TR2
Memory 4x1024MB Crucial OC-6400
Video Card(s) ATI HD 3870X2 Crossfire
Storage WD Black 640GB / Seagate 7200.10 320GB
Display(s) 20" Samsung SyncMaster
Case Lian Li PC-A16b
Power Supply SilverStone Decathlon DA750
Software Windows 7 HP
#4
The specified voltage by AMD to operate at 1.35-1.40V, is the recommended voltage. But you can go lower than the 1.35V. The cpu will work fine at 1.30V.

I'll change the cpu db to 1.35V, where this seems to cause some confusion.

-Dan
 

Poisonsnak

New Member
Joined
Feb 13, 2005
Messages
362 (0.08/day)
Likes
18
Location
Saskatoon, SK
Processor FX-8150
Motherboard Gigabyte 990FXA-UD3
Cooling Thermalright Ultra-120 Extreme lapped & shimmed
Memory Patriot Viper Extreme 8GB DDR3-1866 9-11-9-27 1.65V
Video Card(s) MSI 6950 2GB Twin Frozr II @ 6970 875/1375
Storage Crucial M4 0309 64GB
Display(s) Dell U2410
Case Corsair 650D
Audio Device(s) onboard
Power Supply Corsair AX750
Software Windows [8] Developer Preview
#5
Thanks. 1.30 is working out great, I just don't know why AMD would say 1.35 - 1.40 when most people including motherboard manufacturers are using 1.30.