PCI Latency

krizrox · Post by **krizrox** » Wed Feb 27, 2008 9:17 am

I almost hate to bring this up but I've always been a little confused about the BIOS settings for PCI latency and how it affects Scope. Is there anyone who can explain in laymans terms what realworld effect PCI latency has on Scope and how to determine the best setting?

What effects can you expect to see if this setting is not adjusted properly?

emphazer · Post by **emphazer** » Wed Feb 27, 2008 10:53 am

http://www.rainrecording.com/pro/softwa ... i-latency/

http://www.digitalprosound.com/Htm/Arti ... atency.htm

http://www.soundonsound.com/sos/apr99/a ... etency.htm

pci latency change utility
be carefull, just for experienced user!
http://downloads.guru3d.com/download.php?det=951

krizrox · Post by **krizrox** » Wed Feb 27, 2008 11:23 am

Hey thank you very much. That helps a lot!

lagoausente · Post by **lagoausente** » Fri Feb 29, 2008 2:28 pm

Anyone knows if exist any tool to can monitor de PCI usage of each device? graphics, usb, soundcard etc?

lagoausente · Post by **lagoausente** » Sat Mar 08, 2008 5:04 am

stardust wrote:What I know is this
http://downloads.guru3d.com/download.php?det=951

no guarantee though since it seems s rewrite of the v2.0 I use.

I already has that tool, a previus version of it.
What I´m asking is if exist any tool that allow to monitor the amount of data that each device is sending through the bus, to can find if there is anything to do to allow more bandwith for the Scope card. Is it posible?

lagoausente · Post by **lagoausente** » Sun Mar 09, 2008 11:29 am

stardust wrote:I fearvthat does not exist, since the usage of the PCI bus is ussually not visible to the app. It just uses the available OS services ( and the underlying HW services).

I was suspecting that. Although I have seen on the web a PCI card that is just for analize the PCI bus. Don´t know how may work, but that make me think about the Scope DSP cards, maybe could do that the Scope dsp?
It seems an issue too much complicated.
In the other side, with the new Xite- hardware seems that will be no much problem with bandwith, since PCI-e and Expresscard seems to have a lot of bandwith.
I´m waiting also about the specs of the Xite, if may will have onboard ram? that would be really great. The Pci-bandwith message is maybe the bad point of the platform.

Neutron · Post by **Neutron** » Sun Mar 09, 2008 7:14 pm

I have a hardware PCI bus monitor but it only monitors the entire bus, not individual cards. and i cant use it because i have 3 cards and theres only 3 slots on that bus

the thing is called "PCI GEIGER" it is a small card in the PCI slot and a LED readout which fits in a drive bay.

i had to special order it from china or taiwan i forget. i dont think they make it any more.

garyb might have one i sent it to subhuman ages ago.

lagoausente · Post by **lagoausente** » Mon Mar 10, 2008 3:20 am

Neutron wrote:I have a hardware PCI bus monitor but it only monitors the entire bus, not individual cards. and i cant use it because i have 3 cards and theres only 3 slots on that bus

the thing is called "PCI GEIGER" it is a small card in the PCI slot and a LED readout which fits in a drive bay.

i had to special order it from china or taiwan i forget. i dont think they make it any more.

garyb might have one i sent it to subhuman ages ago.

I have saw that in my search. Is it useful monitoring the entire bus? Just for curious. I have to ask the same question, maybe I would need to ask it the Device/Module wishlist. Maybe could a DSP module do that?
This is the other harware one I found:
http://www.vmetro.com/category3706.html