Quote:
Originally Posted by banini_jeque
I dunno, I can't find a GFX string for it, and almost everyone else I've read who're using the GTX 260 are using GraphicsEnabler and it works perfect. That's what I used before on my old motherboard and it said x16. I ran nvclock and it says I'm "Current Rate: 8X, Maximum Rate: 16X". So, I think it's either my card, or it's some issue with the 10.6.4 drivers like some people have mentioned. I tried using LegacyAGPM and set up an iMac11,1 section with the GTX 260 section from the real AGPM's MacPro4,1 section, and it hasn't made a difference. It actually does seem like the card is running in power save mode all the time. If a launch a game, nvclock still says 300Mhz, when I should be at 626 right? At this point though I've just about hijacked this thread so I guess I ought to start a new one.
Edit: I did just try an EFI string instead of GE, and it still says x8. It's gotta be either my card or my motherboard. Obviously x8 is still plenty of bandwidth for the GTX 260, and everything else is fine, but I don't like that it's not working the way it's supposed to.
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Power save mode actually does make sense. I did have this problem initially (lower clock but still x16 PCIe) and started to look dipper into it. But then when made all the necessary changes to my dsdt it magically disappeared so I did not look any farther. Here is my NVClock info if u'd like it for reference.
-- General info --
Card: GT200 [GeForce GTX 260]
Architecture: GT200 B1
PCI id: 0x05e2
Subvendor id: 0x19f1
GPU clock: 586.284 MHz
Bustype: PCI-Express
-- Shader info --
Clock: 1296.000 MHz
Stream units: 216 (11111110b)
ROP units: 28 (01111111b)
-- Memory info --
Amount: 896 MB
Type: 448 bit DDR3
Clock: 999.000 MHz
-- PCI-Express info --
Current Rate: 16X
Maximum rate: 16X
-- Sensor info --
Sensor: Analog Devices ADT7473
Board temperature: 37C
GPU temperature: 47C
Fanspeed: 339 RPM
Fanspeed mode: manual
PWM duty cycle: 40.0%
-- VideoBios information --
Version: 62.00.50.00.05
Signon message: NVIDIA GTX260 896MB
Performance level 0: gpu 300MHz/shader 600MHz/memory 100MHz/1.05V/100%
Performance level 1: gpu 400MHz/shader 800MHz/memory 300MHz/1.05V/100%
Performance level 2: gpu 590MHz/shader 1296MHz/memory 999MHz/1.12V/100%
VID mask: f
Voltage level 0: 1.05V, VID: b
Voltage level 1: 1.06V, VID: a
Voltage level 2: 1.12V, VID: 5
Voltage level 3: 1.18V, VID: 0
And you are right this does not have anything to do with this thread and there is already plenty of info on this subject.