Advanced Chipset Features

In this menu, settings can be made to the functions of the store. This should be, done carefully there settings here the stability of the overall system affect can.

Phoenix – AwardBIOS CMOS Setup Utility

DRAM Timing Selectable	[by SPD]	Item Help
CAS Latency Time	2.5
Active to Precharge Delay	7
DRAM RAS# to CAS# Delay	3
DRAM RAS# to Precharge	3
DRAM Data Integrity Mode	Non-ECC
MGM Core Frequency	[Auto Max 266 MHz]
System BIOS Cachable	[Enabled]
Video BIOS Cachable	[Disabled]
Memory Hole At 15M-16M	[Disabled]
Delayed Transaction	[Enabled]
AGP Aperture Size (MB)	[64]
On-Chip VGA Setting
On-Chip VGA	[Enable]
On-Chip Frame Buffer Size	[32MB]

↑ ↓ → ← :Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

DRAM Timing Selectable

Under this submenu you can set the optimal timing for options a, depending on the storage engine used by them. Be configured the options from the default 'By SPD', by the contents of the SPD (serial presence detect) device is selected. This critical parameter info become in the EEPROM memory type, size, speed, voltage interface and module banks saved.

CAS Latency Time

Under this option, the latency between the DRAM read command and is time, to which the data are actually available, set. Adjustment: 1.5 and 2.5

Active to Precharge Delay

Specify the amount of time in which a storage line (row) is kept open before a Precharge. By default, this is assigned to the SPD. Settings: 5, 6, 7, 8

DRAM RAS# to CAS# Delay

This option controls the latency between the active DRAM command and the read/write command. Options 2 and 3

DRAM RAS# to Precharge

The value specifies how much time between two memory accesses. Four strokes suffice in all cases, three bars are indeed faster, but not sufficient at all SIMMs. Should be the default setting, so that no memory errors occur.

DRAM Data Integrity Mode

This option is strongly related to option of test of ECC (error checking and correction). You define here a less than optimal parity check, which only detects errors, but not eliminated. Settings: Non-ECC (should be correct for most of you) and ECC. If your memory is an ECC memory, then choose the option ECC.

MGM Core Frequency

This function adjusts the speed of the FSB. This also used the parameters to Graphicspeicher and core. We recommend the settings on car Max 266 to leave.

System BIOS Cachable

When the existing BIOS ROM is taken into account through the cache and this brings more performance, but almost only under DOS and Win3.x. Under Windows 95/98 does not so much brings this option.

Video BIOS Cachable

If you have this option enabled, the cache can consider BIOS of the graphics card to the address C0000h with the VIDEO to C7FFFh. Should remember, though, that the caching brings risks, if the code is in the cache and want to write a program in the BIOS section. You have this option enabled, you must enable at the same time also the option video BIOS shadow. Speed advantage on DOS about 40%. This option should be under Win.x and DOS to enabled, otherwise disabled should be set.

Memory Hole At 15M-16M

Install ISA cards with a framebuffer, here to run if the option enabled. However you can no longer use the memory above 15 MB. If you are using any ISA cards you should have this option disabled, your card unless otherwise requires.

Delayed Transaction

Here is the 32-bit write buffer that acts as a kind of cache by PCI transfers, enabled/disabled. To achieve full compatibility with PCI 1.2, you should have turned on this option. This PCI traffic be accelerated. Only if an older card problems, turn this option off.

AGP Aperture Size (MB)

Here is for AGP (accelerated graphic port)-graphics cards in the RAM reserved a Speicheradressfenster, in which the memory accesses will be redirected. AGP memory access (host cycles) will be passed without delay, if they fall within the reserved area. The larger the value the faster can represented in the main memory paged out textures. The value ranges from 4, 8, 16, 32, 64, 128 and 256 MB. The default value is 64 MB. The aperture size is a virtual size and requires the specified memory, not all the time but only if required by the graphics card.

On-Chip VGA

With this option, enable or disable the VGA controller integrated into the chip.

On-Chip Frame Buffer Size

Under this option, you can customize the frame buffer. Various setting options. You can test the individual options out here for improving performance. Watch for system stability and proceed only gradually.