Why does my FX 5900Ultra have 128bit memory? (NV33)

[davidrees]

Does this look right?

from Riva Tuner:

$ffffffffff ---------------------------------------------------
$ffffffffff Northbridge information
$ffffffffff ---------------------------------------------------
$0400000000 Description : NVIDIA nForce2
$0400000001 Vendor ID : 10de (NVIDIA)
$0400000002 Device ID : 01e0
$0400000003 AGP bus : revision 3.0
$0400000004 AGP status : enabled
$0400000005 AGP rate : 4x 8x supported, 8x selected
$0400000006 AGP SBA : supported, enabled
$0400000007 AGP FW : supported, enabled
$ffffffffff ---------------------------------------------------
$ffffffffff Display adapter information
$ffffffffff ---------------------------------------------------
$0000000000 Description : NVIDIA GeForce FX 5900 Ultra
$0000000001 Vendor ID : 10de (NVIDIA)
$0000000002 Device ID : 0330
$0000000003 Location : bus 2, device 0, function 0
$0000000004 Bus type : AGP revision 3.0
$0000000005 AGP status : enabled
$0000000006 AGP rate : 4x 8x supported, 8x selected
$0000000007 AGP SBA : supported, enabled
$0000000008 AGP FW : supported, enabled
$0000000009 Base address 0 : e4000000 (memory range)
$000000000a Base address 1 : d0000000 (memory range)
$000000000b Base address 2 : none
$000000000c Base address 3 : none
$000000000d Base address 4 : none
$000000000e Base address 5 : none
$ffffffffff ---------------------------------------------------
$ffffffffff NVIDIA specific display adapter information
$ffffffffff ---------------------------------------------------
$0100000000 Graphics core : NV33 revision A1
$0100000001 Hardwired ID : 0330
$0100000002 Memory bus : 128-bit
$0100000003 Memory type : DDR (RAM configuration 05)
$0100000004 Memory amount : 262144KB
$0100000005 Core clock : 300.857MHz
$0100000006 Memory clock : 425.250MHz (850.500MHz effective)
$0100000007 Reference clock : 27.000MHz

Also - should the RAM be DDR3?

I am so confused - this card has been weird since I got it.

 

[davidrees]

Does the 5900U use the NV33? Could rivatuner be wrong?

5900U is supposed to be 256bit memory - what would make this show as 128?

Does anyone know?

 

[shabby]

Somethings not right, the 5900 ultra is a nv35 not a nv33. And it runs at 450mhz, not 300.
Is this maybe the 5900xt, the value edition?

 

[MDE]

Originally posted by: shabby
Somethings not right, the 5900 ultra is a nv35 not a nv33. And it runs at 450mhz, not 300.
Is this maybe the 5900xt, the value edition?

5900XT is NV38 IIRC (same as 5950 Ultra) and still has 256 bit memory.

 

[davidrees]

It does go to 450mhz when you go to 3d mode.

Also, my 3dmark03 score was about 5500ish which is about right for a 5900u card

so why the report weirdness?

 

[davidrees]

Anyone have any ideas on this?

Could I actually have an NV33 that is flashed to be a 5900? I have the big HSF with the dual slot backplane and my 3dm03 scores seem to jive.

Wacky.

 

[MDE]

NV33 is the FX5500 which would NEVER be able to be flashed to a 5900 anything. RivaTuner is probably reporting things wrongly or the card's BIOS is a bit wacky. What brand is the card?

 

[davidrees]

It is an eVGA brand - and it looks JUST like the one in the review:

http://www.gamepc.com/labs/vie...=1&cookie%5Ftest=1