Sideband Addressing

[sgt. york]

I just loading WCPuid and I went into Chipset Info window and noticed that it says sideband addressing is supported but isn't enabled! I checked my Geforce Tweak Utility under the general tab and allow sideband addressing is checked. Anyone know what's up with this, do I need it enable and is the chipset reading actually different from what on my Geforce card? Any help is greatly appreciated.

Thanks.

[Pinky]

sgt. york (Jun 30, 2001 11:56 a.m.):
I just loading WCPuid and I went into Chipset Info window and noticed that it says sideband addressing is supported but isn't enabled! I checked my Geforce Tweak Utility under the general tab and allow sideband addressing is checked. Anyone know what's up with this, do I need it enable and is the chipset reading actually different from what on my Geforce card? Any help is greatly appreciated.

Thanks.

I want to at least acknowledge your request. I still have not heard back on what sideband addressing does exactly. I can't answer the question for you, but I can tell you that whether I enable or disable it in my tweak utility (NVMax) I don't see any difference.

[sgt. york]

Thanks for the reply Pinky, I'll keep searching this and other forums.

[Pitspawn]

Sideband Addressing is a type of optimisation of AGP to CPU communication. Basically with SBA the AGP doesnt need to wait for the cpu cycle to finish. SBA is only supported with Athlon systems AND is normally quite unstable with AGP speed modes greater than 2x.

SBA normally only increases low resolutions by one or two extra frames per second. Basically it is not worth it. The same goes for fast writes.

Fast Writes or Execute Mode is another optimisation that speeds up large block data transfers. Once again, this doesnt do much to fps and isnt really worth the hassle. The AGP speed IS worth the hassle though because serious fps can be gained at higher resolutions with a high AGP mode.