friends please tele me i have 512 ram 3.0 bpard is

Motherboard
Manufacturer Hewlett-Packard
Model 085Ch
Chipset Vendor Intel
Chipset Model i865P/PE/G/i848P
Chipset Revision A2
Southbridge Vendor Intel
Southbridge Model 82801EB (ICH5)
Southbridge Revision 02
BIOS
Brand Hewlett-Packard
Version 786B2 v2.18
if i fix another ran of 256 then will the speed of my net and download will be improve plz reply thanks