On Feb 20, 2011, at 8:54 PM, Sean Carroll wrote:

GeForce FX 5200:

 Chipset Model: GeForce FX 5200
 Type:  Display
 Bus:   AGP
 Slot:  SLOT-A
 VRAM (Total):  256 MB
 Vendor:        nVIDIA (0x10de)
 Device ID:     0x0321
 Revision ID:   0x00b1
 ROM Revision:  2060

Another oddity with this GeForce 5200 FX. It was advertised as 128 MB, and shows up in System Profiler with 256 MB VRAM. There are two labels on the card itself. One says:

FX 5200 128MB/128bit DDR

The other:

5200 128 MB AGP

The nefarious underworld of video cards. Who knew they were so weird? I didn't.

There are likely some issues here. This card is made by Zogis, so it's a flashed PC card for certain. As far as I can tell, all the 128MB cards were 64bit cards. It appears the 128bit cards were all 256MB.

It doesn't appear you'll need to tape pins 3 & 11 for this card to work in your Sawtooth. If you ever plan to transfer this card to any of the ADC Macs which are the Cube, DA, Gigabit, QS, and MDD you'll need to fix pins 3 & 11. See:<http://themacelite.wikidot.com/pins-3-and-11 >

There's a good chance your ROM may be wrong for this card. The ROM revision doesn't really help because there was only one Mac ROM, version 2060, and every card will have v.2060, but there are several versions of 2060 ROMs, and they vary for different speed VRAM & GPU, and also for 64bit or 128bit.

If the card has a 256MB 128bit ROM and it's really a 128MB 64bit card, this could cause the panics you're seeing because the Mac would be trying to address VRAM that doesn't physically exist.

My advice is to first figure out exactly what card you have. Next, you'll want to be sure the ROM you select has the correct bit, MB, and speed to match your card. I think the real Mac card uses Device ID 0x0322 rather than 0x0321 so you may want to have that changed also, but I'm not sure if it matters or not?

It may take some experimentation to get the correct ROM so that this card doesn't panic. I sent a link to the ROMs repository. I think it's likely you have the wrong ROM for the physical hardware on the card, and that getting a matching ROM will stop the panics. I might able to assist off-list if you need further assistance.

Here's some reading on the FX5200:

You received this message because you are a member of G-Group, a group for 
those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs.
The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette 
guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to g3-5-list@googlegroups.com
For more options, visit this group at http://groups.google.com/group/g3-5-list

Reply via email to