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p3/AGP question

post #1 of 10
5/8/05 at 5:06am
Thread Starter 
My friend just got a hand me down which is running a 900mhz pIII and I was wondering if anyone knows if the motherboards used for that particular socket (I have no idea what it would be, I've only had amd's and p4's) utilize agp 4x slots or 8x slots... and if anyone could tell me if 8x slots are backwards compatable and can handle 4x cards, and if the opposite is true (if 4x slots can handle 8x cards at reduced bandwidth) mainly because right now the aging rig is running of integrated graphics and he could barely get homeworld running let alone play FFXI. Anyway, it'd be great if you guys could help clear this up for me
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post #2 of 10
5/8/05 at 12:47pm
i was not aware P3 systems had AGP slots. i have a Dell L866r (same chasis used on laptops of 866mhz 900odd mhz and 1ghz) versions and well....no AGP slot there, i use a PCI video card (nvidia fx5700le 128mb)
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post #3 of 10
5/8/05 at 3:25pm
Why wouldn't they have agp slots? It's all dependant on the motherboard. My old PIII had a hardcore geforece 2mx in its agp slot.
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post #4 of 10
5/8/05 at 8:17pm
Quote:
Originally Posted by kwick7
Why wouldn't they have agp slots? It's all dependant on the motherboard. My old PIII had a hardcore geforece 2mx in its agp slot.

what i meant is that mobos made for p3 usually don't have apg, although it seems like some do.
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post #5 of 10
5/8/05 at 9:47pm
Umm...actually most do. Its unusual to see one without it. I guess you've just run into a lot of systems with integrated graphics. About the time P3's hit 800MHz or so Intel started using it's "Extreme" Integrated Graphics. Even many of those systems had an additional AGP port.

But back to the original question. If it has an AGP port you'd be safe to expect it to be AGP4X. AGP8X is backward compatible with 4X, as is 4X with 2X. I'm not 100% but I think an APG8X will work on a 4X, albeit with a reduced transfer rate.
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post #6 of 10
5/8/05 at 11:04pm
i was just thinking that. my dell has an intel i810. which means, integrated graphics and no agp. that is why i had to shove a PCI card in there.
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post #7 of 10
5/11/05 at 12:24am
ive seen comparisons of agp 8x and 4x and there is barley any. wont take a big performance hit or anything. you will though if you use integrated graphics that just plain sucks.
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post #8 of 10
5/11/05 at 1:41am
Quote:
Originally Posted by abf
i was just thinking that. my dell has an intel i810. which means, integrated graphics and no agp. that is why i had to shove a PCI card in there.

I think its because it was a Dell.
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post #9 of 10
5/13/05 at 2:56am
Thread Starter 
I know it took a while to respond to your answers; but thanks guys, that's all I needed to know. I'll probably get him one of the cheaper 8x cards then, like a 5600 ultra or something; seeing as there's no real use blowing too much money on a system with a cpu that old.
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post #10 of 10
5/13/05 at 9:16am
Could you list the specific Motheboard?
There are 2 different voltage standards of AGP, 3.3v and 1.8v and they are not backwards compatible.

A lot of the older AGP slots used 3.3v, if you put a newer 1.8v card into it, you WILL Fry it.
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