Overclock.net › Forums › AMD › AMD Motherboards › Abit Fatal1ty AN8 SLI.. Bios Question?
New Posts  All Forums:Forum Nav:

Abit Fatal1ty AN8 SLI.. Bios Question?

post #1 of 2
Thread Starter 
What does HT Frequency & HT Width mean and or do in the bios I have several options to chose from... Just want to make sure I have the settings correct.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
AMD 64 4000+ San Diego Abit Fatal1ty SLI Windows XP PRO X64 Viewsonic A91f+ Ultra B 
KeyboardPowerCaseMouse
Wireless Comort Keyboard Silverstone 600w SLI Heavily Modded Logitech M1000 Laser 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardOSMonitor
AMD 64 4000+ San Diego Abit Fatal1ty SLI Windows XP PRO X64 Viewsonic A91f+ Ultra B 
KeyboardPowerCaseMouse
Wireless Comort Keyboard Silverstone 600w SLI Heavily Modded Logitech M1000 Laser 
  hide details  
Reply
post #2 of 2
HT or HyperTransport.
Not firmiliar with the Abit BIOS
HT, HTT, somewhat confusing.
The HT can refer to a multiplyer or 5x,4x,3x,or 2x and how it maintains the RAMs speed relative to the CPU's HTT (once known as FSB or front side bus).
Default = 5x 200MHz =1000 when OCing the CPU the RAM's HT must be lowered to maintain a 1000MHz total or less to keep the RAM stable, so ...
Use 4x for 201-250
3x for 251-333.
Take a peek at this utility and you will see the corelation.
http://math.gogar.com/athlon64.cgi

A basic from Gogars
(HTT) 250MHz x 11 (CPU multiplyer) = 2750
(HTT) 250MHz x 5 (RAM HT) = 1250 <<< BAD 250MHZ beyond the 1000MHZ limit
So the RAM's HT must be reduced to 4x for up to an HTT of 250
So with the RAM at default DDR400 it will actually be running DDR500 speeds with the above settings.
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD Motherboards
Overclock.net › Forums › AMD › AMD Motherboards › Abit Fatal1ty AN8 SLI.. Bios Question?