G400 32mb OEM won't work with Celeron266@448Mhz

[Sy-Klone]

I just installed a G400 Oem 32mb card to replace my G200 in my system with a
Overclocked Celeron 266 @ 448Mhz

Thing is that the card won't run in this configuration ( 4 x 112 Mhz) I
have to run it at 400Mhz or at 448 but to set the
AGP bus to 2/3 in the BIOS (motherboard: Abit BH6)

What is wrong here? Doesn't the G400 cope with this speed (my G200 did).
Or is there something wrong with the card maybe?

Anyway, at 448Mhz on the Celeron and AGP bus at 2/3 speed i get 2906 in
3Dmark99 at 800x600 16bit. is this too low?

Do I lose much speed by having the AGP set to 2/3 ?

[Hunsow]

>Do I lose much speed by having the AGP set to 2/3 ?

No, in fact you're still overclocking the AGP bus. (Which is quite useless)

[Wombat]

You're pushing the bus way past spec. No surprise it didn't handle 112Mhz, when it is designed for 67Mhz. At least Matrox makes cards that withstand much higher (eighties and up), but this is just a bonus.
Nothing is wrong with your card, you're just not as lucky with this one as you were with your G200.

Also, if you're really looking for a speed increase, change processors. It's amazing what an L2 cache can do.

[Kruzin_K]

2/3 is what you should be running your AGP divider at with 100MHz and up FSB.

And yes, that cacheless celery isn't helping much. Try to find a cheap 300a, and you'll see a large improvement in those scores.

[DarkSyd]

Large improvement in day-to-day desktop apps and benchmarks, but not much difference in games or rendering type apps. My 448 Cels still render StudioMax scenes faster than the PII400's at our office.
Just for kicks, I'll run 3dMark when I get home, and we can compare scores.

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--My Stuff
Cel266@448,Asus P2B 1009 bios,128MB,16MB G400 (w/ augmented ventilation),Quantum Obsidian,Panasonic 17" S70,MX300,Fujitsu 5.25GB,Dlink 530CT+, 1 grey Cat, 1 orange Cat

[Slartibartfast]

You'll see an improvement on the G400, since it (for some reason) does a LOT better with cache. It's a function of the drivers, I think.

- Slarty

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I used to be a guy named Gurm. I used to have a signature. But that's all gone now. Now, my name is Ash... and I am a slave.

[Maniac]

It does seem like your 3dmark score is low, with my celeron 464A I get 4096 3dmarks at 800X600 16-bit...Are you using the max version??

[Joseph]

Hey Maniac,

The reason you get higher scores in 3dmark is that your Celeron chip has 128k cache on it, while Sy-Klone's celeron does not. It does make a big difference in those kinds of tests like 3dmark.