AGP 8x on 4x mobo

  PurplePenny 12:40 20 Aug 2006

I need to update the graphics cards on my old PC and on Kev's 2 1/2 year old Shuttle.

Will an AGP 8x card run on a mobo that only supports 4x (one web site claims it will)?

Which is better for gaming Radeon 9600 with 128mb or Radeon 9550 with 256mb?

(I'm not looking at Nvidia chipsets because some of them don't fit inside the Shuttle... but although the compatibility list on Shuttle's web site mentions this it doesn't list which cards will not fit).

  Fruit Bat /\0/\ 12:47 20 Aug 2006

Will run but only a 4x speed

  PurplePenny 14:00 20 Aug 2006

Thanks for the info: I don't know what will fit into the Shuttle because of the limited room inside the case. This is the list of compatible cards from the Shuttle site:

Asus X800Pro
Asus V9520 FX5200 128MB
Asus Geforce4 Ti4600
Asus Geforce4 Ti4200 64MB
Ati Rage 128 Ultra 32MB
Ati Radeon VE 64MB TV-Out DVI
Ati Radeon VE 32MB TV-Out DVI
Ati Radeon 9800XT 256MB
Ati Radeon 9700 8X
Ati Radeon 9600 Pro
Ati Radeon 9000 8X
Ati Radeon 8500 64MB DDR TV-Out
Ati All In Wonder 9800 Pro
Ati All In Wonder 9700 Pro
Elsa Geforce3 Gladiac 920 TV-Out
Gainward Geforce4 Ti4200 128MB
Gainward Geforce4 MX460 64MB
Gainward Geforce FX5600 Ultra 128MB
Gainward Geforce FX5200 Ultra 128MB
Leadtek Quadro4 550 XGL
Leadtek Geforce4 Ti4600 Ultra
Leadtek Geforce4 MX440
Matrox Parhelia 128MB
Msi Geforce FX5900 TD128MB*
Msi Geforce FX5600 TD128MB
Msi 6800GT
Nvidia 6800GT
Palit Geforce4 MX440 64MB
Palit Geforce4 MX440
Palit Geforce3 Ti200 64MB
Palit Geforce2 MX400 64MB
Palit Geforce2 MX400 128MB
Palit Geforce2 MX200 64MB
Palit Geforce2 MX200 32MB
Palit Geforce2 MX 32MB
Prolink Geforce2 MX
Shuttle Geforce3 64MB DDR TV-Out
Triplex Xabre Pro 8X
Triplex TRP-MX2200 32MB
Remark:* Due to mechanical incompatibility, some NVIDIA chipset based cards (such as Msi FX5900 in the list) are only working with chassis cover

As you can see they warn that one of these won't work with the chassis cover closed (I read on one site that they are too fat) but don't say which others (if any) also have this problem. I've had a look at some reviews of the machine to see what other people have put in it but as the 9600 was state of art at the time I can't find anyone mentioning anything better :-(

My old PC is still running Win 98SE so although card size wouldn't be a problem OS support might be!

  PurplePenny 15:21 20 Aug 2006

In the reviews on Ebuyer someone had overclocked a Connect3d 9550 256mb card and said that he got a 9600 pro from it. Does that sound right? As the case space is limited might overclocking cause overheating?

  Stuartli 16:28 20 Aug 2006

The 4x and 8x speeds of AGP cardz are not, as might be logically imagined, linear.

  PurplePenny 14:56 21 Aug 2006

I discovered a Shuttle newsgroup so I posted there to ask whether anyone had put a more recent card than a Radeon 9800 in this model.

It turns out that the problem is with this case that the graphics card ends up crushed against the case so the cooling fan has to work much harder (and cards with fatter profiles don't fit at all).

One guy is looking for a newer card for his own Shuttle so I'm hoping that he'll get back to me with his choice.

Now back to my old PC with the AGP 4x. Now that I know that I can run an 8x AGP card on this machine what should I be looking out for. I've only seen a couple of cards that state that they will run under Win98SE but can I take it that most AGP cards will do? Should I only be looking at older cards if I can't find anything that says for sure that they will run under 98?

What I thought that I might do is buy a card for the Shuttle then if it doesn't fit I might be able to use it in my machine.

Looking at photos of various cards the Sapphire Radeon X1300 256MB seems to have as low a profile as the ones that I know fit in the case click here

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