Hi all, this one has me baffled and I hope some-one can help.
A while ago I switched motherboards, going from a Gigabyte with Intel 865 chipset to an ASrock with VIA PT880 Ultra chipset. This was so that I could upgrade the CPU and RAM at a later date, whilst keeping my existing AGP card, Pentium 4 3.2ghz CPU and DDR ram.
First thing I noticed with the new mobo is that the graphics were way slower. The card is an Nvidia FX5200. On benchmarks it was running maybe 30% slower. This was on an 800 mhz FSB. I have tried fiddling with the settings that were available in the bios, but could not find the missing speed.
I have now upgraded the CPU to a Core duo running on a 1066mhz FBS, and DDR2 RAM running at 1:1. I have got back some of the lost graphics speed, but it is still short of what it was.
I know the FX5200 is no speed monster and it's dated but as I'm not much of a games player it's good enough for me (or it would be, if I could get it to run right).
The improved performance on a faster FSB and CPU suggests to me that the bottleneck is not the 8xAGP slot, or the card itself. so I am thinking maybe it is the VIA chipset that is holding it back. Is the VIA 880 Ultra chipset worse than the Intel 865?
TIA for any advice,
Tom
A while ago I switched motherboards, going from a Gigabyte with Intel 865 chipset to an ASrock with VIA PT880 Ultra chipset. This was so that I could upgrade the CPU and RAM at a later date, whilst keeping my existing AGP card, Pentium 4 3.2ghz CPU and DDR ram.
First thing I noticed with the new mobo is that the graphics were way slower. The card is an Nvidia FX5200. On benchmarks it was running maybe 30% slower. This was on an 800 mhz FSB. I have tried fiddling with the settings that were available in the bios, but could not find the missing speed.
I have now upgraded the CPU to a Core duo running on a 1066mhz FBS, and DDR2 RAM running at 1:1. I have got back some of the lost graphics speed, but it is still short of what it was.
I know the FX5200 is no speed monster and it's dated but as I'm not much of a games player it's good enough for me (or it would be, if I could get it to run right).
The improved performance on a faster FSB and CPU suggests to me that the bottleneck is not the 8xAGP slot, or the card itself. so I am thinking maybe it is the VIA chipset that is holding it back. Is the VIA 880 Ultra chipset worse than the Intel 865?
TIA for any advice,
Tom