Abit Fatal1ty F-I90HD, User Manual

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BIOS Setup
F-I90HD 2-9
2.4 Advanced Chipset Features
Phoenix – AwardBIOS CMOS Setup Utility
Advanced Chipset Features
DRAM Timing Selectable By SPD Item Help
x - CAS Latency Time (tCL) 5
x - RAS# to CAS# Delay (tRCD) 5
x - RAS# Precharge (tRP) 5
x - Precharge Delay (tRAS) 15
x - Refresh Cycle Time (tRFC) 20
GFX Link Width x16
Surround View Function Disabled
Init Display First PCI Slot
UMA Frame Buffer Size 64MB
HDMI Port Display DVI
‚€ :Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults
DRAM Timing Selectable
This item sets the optimal timings for the following four items, depending on the memory
module you are using. The default setting “By SPD” configures these four items by reading the
contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module
stores critical parameter information about the module, such as memory type, size, speed,
voltage interface, and module banks. The following items will be available to make adjustments
by selecting option [
Manual] .
- CAS Latency Time (tCL)
- RAS# to CAS# Delay (tRCD)
- RAS# Precharge (tRP)
- Precharge Delay (tRAS)
- Refresh Cycle Time (tRFC)
GFX Link Width
This item specifies the bandwidth for slot [PCIEXP1].
Surround View Function
This item allows you to enable or disable the surround view function.
This item appears only when the slot [PCIEXP1] has been installed with an ATI graphics card.
Init Display First
This item allows you to choose the primary display card.
UMA Frame Buffer Size
This item selects the size of memory pre-allocated for frame buffer.
In the applications that require higher frame buffer size, such as 3-D game, HDMI, or Blu-ray
DVD playing, please select the option [256MB] for higher video performance.