X1900 only 8x in XP

amtctt

macrumors regular
Original poster
Sep 8, 2006
133
0
Hey, looks like my 1900 is only coming up as 8 lanes when i'm in XP, it should be 16 right? Anybody know how to fix that. I'm using XP Pro, 32 bit.
 

amtctt

macrumors regular
Original poster
Sep 8, 2006
133
0
i looked in the device manager i think. In OS X, there is actually a utility that i just found out about. Here is a link about that utility. I'm guessing that changing it in OS X will not affect what it is in XP, but who knows. I will check it out when i get home for sure.

http://docs.info.apple.com/article.html?artnum=304122
 

damado

macrumors 6502
Aug 8, 2006
280
0
Wierd, yeah I just noticed I have 4 x4 and 1 x8 (the 4 are the yellow exclamaiton marks in device manager).

Doesn't make sense

Also, I don't have a core services folder and no expansion utility =/
 

amtctt

macrumors regular
Original poster
Sep 8, 2006
133
0
In OS X it's running at 16, but device manager in XP shows 8bus. maybe that's what it should, but i don't know, seems like it should be 16 there as well. nobody seems to know how to change that. i don't have anything in any of the other slots. very strange.
 

Origin

macrumors regular
Aug 11, 2006
115
0
Nantes, France
Could it just be a print error of the device manager of XP ?

Actually, my last tests with 3DMark'06 show that the X1900 XT operates very much like the classic PC ones (more than 6000 pts).

I think in fact, Windows XP is not correctly reporting the real number of PCIe lines of the first slot ?
 

knome

macrumors 6502
Sep 7, 2006
332
0
you guys don't notice that farther down the list there says an 16x slot.
 

[G5]Hydra

macrumors regular
Jul 2, 2004
151
0
I have seen it reported as 16x in a couple of other utilities. CPU-Z and Hardware OC's HL2 benchmark app both report that my 1900XT is 16x under XP.

-Jerry C.