giga-byte question about agp

[d25woods]

Hello,I have a compaq 5440,with 3 pci slots,but compaq tells me that the board has a 2x AGP,GIGA BYTE says that the agp 2x is intergrated.Can someone explain this to me?the board is a giga byte 5smm with sis 530/5595 chipset with amd 450 cpu.

[Mntsnow]

Yes that board is using ON-Board AGP video. Meaning that it has a "video card" built in! The AGP chipset ("video card") it uses is 2x compliant thus it runs at 133mhz buss speed.

Mntsnow

[Mntsnow]

I have also answered your other question /forum/biggrin.gif

Mntsnow

[Peter M]

Hi!

The SiS 530 has an AGP compliant graphics unit integrated that either uses up to 8 MB of its own RAM, or if absent, steals up to 8 MB of main system RAM.

Either way, it is perfectly AGP compliant from a software viewpoint, and sits on a 100 MHz clock instead of AGP's 66 MHz (double data rates with "2x" mode). That's why it's so fast in 2D.

The drawback is, none of the chipsets that have a graphics unit integrated also offers AGP signals to the outside world, meaning that boards using these chipsets can't have an AGP slot.

Regards, Peter