How do I enable DMA in XP Pro
I am running Win XP Pro on a MSI K8N Neo4 Platinum MOBO, AMD 64 bit 3200, (4) 512Mb PC3200, ATI AIW X600, (2) WD 74Gb Raptor's, 200Gb WD IDE, NEC DVD+-R/RW. I have upgraded to the new ATI Media center and drivers. Windows has all of it's updates as well.
Here is my problem. When I start the ATI TV program, I get a pop-up message that tells me:
"Warning: DMA Not enabled. PVR abd TC-on-demand Performance will be degraded on this system as DMA for the HD is not enabled" It then tells me that I can go the the control panel and access my system information." It then has a drop down box that lists my 200GB drive first, and then my 2 74Gb drives. When I click OK it starts up but does run slowly sometimmes.
My question is:
1. Does DMA improve my drive performance?
2. Is it worth it to enable it?
3. How do I enable DMA?
4. Can DMA hurt the performance of my PC?
Thank you very much for any help you can provide.