Q: According to the specification of P4Dual-915GL/775Dual-915GL on ASRock website, it can support up to 224MB VGA shared memory. Where can I adjust the VGA shared memory size?(2005/4/8) A: Intel 915GL chipset supports Dynamic Video Memory Technology (DVMT). DVMT will dynamically allocate VGA memory based on system needs and is not user configurable.
For further information, please refer to Intel website:
http://www.intel.com/support/graphics/intel915g/sb/CS-011817.htm?iid=graphics+915main&