Overclock.net › Forums › AMD › AMD Motherboards › Voltage Questions
New Posts  All Forums:Forum Nav:

Voltage Questions

post #1 of 3
Thread Starter 
What the heck is VDDNB Voltage? I have it (VDDNB Voltage) as an option for my Asus M4A785-M motherboard and I haven't the slightest idea what it actually does. I believe it is either the CPU-NB voltage or the NB voltage itself...BUT I haven't been able to find a definitive answer and I do not want to set it too high. Also what is Chipset Voltage? Is it the northbridge or the southbridge?
Edited by Aznboy1993 - 1/21/11 at 8:11pm
Buena Vista
(18 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 4790K [4.6GHz] [1.25V] Asus Maximus VII Formula [BIOS 3003] NVIDIA GTX 1080 Ti FE [2050MHz] [12GHz QDR] Samsung MV-3V4G3 16GB (4x4GB) DDR3 2133 
Hard DriveHard DriveHard DriveHard Drive
Intel 535 Series 240GB [RAID 1] Crucial M500 960GB Seagate Barracuda 3TB Western Digital VelociRaptor 500GB [RAID 0] 
CoolingCoolingOSMonitor
Corsair H110i GT (Qty 2) Phanteks PH-F140XP Microsoft Windows 10 Pro [64-bit] Dell S2716DG [G-Sync] 
KeyboardPowerCaseMouse
Razer BlackWidow Chroma EVGA Supernova G2 1300W NZXT H440 [Black/Red] Logitech G900 
Mouse PadAudio
Razer Firefly Logitech G933 
  hide details  
Reply
Buena Vista
(18 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 4790K [4.6GHz] [1.25V] Asus Maximus VII Formula [BIOS 3003] NVIDIA GTX 1080 Ti FE [2050MHz] [12GHz QDR] Samsung MV-3V4G3 16GB (4x4GB) DDR3 2133 
Hard DriveHard DriveHard DriveHard Drive
Intel 535 Series 240GB [RAID 1] Crucial M500 960GB Seagate Barracuda 3TB Western Digital VelociRaptor 500GB [RAID 0] 
CoolingCoolingOSMonitor
Corsair H110i GT (Qty 2) Phanteks PH-F140XP Microsoft Windows 10 Pro [64-bit] Dell S2716DG [G-Sync] 
KeyboardPowerCaseMouse
Razer BlackWidow Chroma EVGA Supernova G2 1300W NZXT H440 [Black/Red] Logitech G900 
Mouse PadAudio
Razer Firefly Logitech G933 
  hide details  
Reply
post #2 of 3
i think VDDNB is the voltage related to the syncing of memory to Northbridge thats why it has VDD at the start. when you overclock your cpu it increases your NB frequency aswell and this can cause it to get out of sync with your memory.

kinda think of it as a highway with 3 points A B and C. A is your cpu, B is your NB, and C is your ram. if A and B are out of sync with C it causes a traffic jam. in computer terms a bottle neck.
Finally Finished!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3930K Batch: 3135B495T Gigabyte X79 UD7 GTX 570 3-way SLi Corsair Vengeance 1600mhz CL9 
Hard DriveCoolingOSMonitor
60GB OCZ Vertex II / 3x 500GB Samsung Spinpoint EK Supreme HF Nickel, EK DCP4.0, Stealth GT 360... Windows 7 Ult 64bit Acer 22" G225HQ 
KeyboardPowerCaseMouse
Razor Lacosa Mirror Edition Silverstone Strider 1500w  Aerocool X-Preditor  CM Storm Sentinel Advanced 
Mouse Pad
Razer Goliathus Speed edition 
  hide details  
Reply
Finally Finished!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3930K Batch: 3135B495T Gigabyte X79 UD7 GTX 570 3-way SLi Corsair Vengeance 1600mhz CL9 
Hard DriveCoolingOSMonitor
60GB OCZ Vertex II / 3x 500GB Samsung Spinpoint EK Supreme HF Nickel, EK DCP4.0, Stealth GT 360... Windows 7 Ult 64bit Acer 22" G225HQ 
KeyboardPowerCaseMouse
Razor Lacosa Mirror Edition Silverstone Strider 1500w  Aerocool X-Preditor  CM Storm Sentinel Advanced 
Mouse Pad
Razer Goliathus Speed edition 
  hide details  
Reply
post #3 of 3
Quote:
Originally Posted by Aznboy1993;12095972 
What the heck is VDDNB Voltage? I have it (VDDNB Voltage) as an option for my Asus M4A785-M motherboard and I haven't the slightest idea what it actually does. I believe it is either the CPU-NB voltage or the NB voltage itself...BUT I haven't been able to find a definitive answer and I do not want to set it too high. Also what is Chipset Voltage? Is it the northbridge or the southbridge?

VDDNB is your CPU/NB Voltage, Stock around 1.2v, max 1.4v on that board
Chipset is for the NB Voltage, should be fine on auto and really no need to change.
Any other questions feel free to PM me. I've got 2 of those mobo here as one is in backup rig (4.0GHz, NB 2838MHz) and other in G/F's rig.

You should consider adding some Mosfet HS's to that board if your OC'ing there are some pics in my gallery of the "Budget Board" as to what I did.
Edited by The Sandman - 1/22/11 at 9:27am
 
Bruce
(14 items)
 
Ryzen Build
(20 items)
 
CPUMotherboardGraphicsRAM
FX 6350 Asus M5A99FX Pro R2.0 GTX220 G.Skill Ripjaws X F3-17000CL9D-8GBXLD 9-11-9-28... 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro WD20EFRX 64M Red x4 raid 10 WD5001AALS Blk Asus DRW-24B1ST 
CoolingOSMonitorKeyboard
Hyper 212 Evo R2 Windows Server 2008 R2 Standard Asus  Logitech MK300 
PowerCase
Corsair HX500 Corsair 330R Titainium 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
 
Bruce
(14 items)
 
Ryzen Build
(20 items)
 
CPUMotherboardGraphicsRAM
FX 6350 Asus M5A99FX Pro R2.0 GTX220 G.Skill Ripjaws X F3-17000CL9D-8GBXLD 9-11-9-28... 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro WD20EFRX 64M Red x4 raid 10 WD5001AALS Blk Asus DRW-24B1ST 
CoolingOSMonitorKeyboard
Hyper 212 Evo R2 Windows Server 2008 R2 Standard Asus  Logitech MK300 
PowerCase
Corsair HX500 Corsair 330R Titainium 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD Motherboards
Overclock.net › Forums › AMD › AMD Motherboards › Voltage Questions