PCI latency time

[spixel]

Riggghtio , pc as in menu thing on left :>

Atm its at default of 32 , should i try increasing it to 64 ? or would it be risky , i dont know anything really about pci latency time.

 

[zCexVe]

It is there to determine how much time to be looked at a PCI line in a request before switching to next.It is useless if you dont use any PCI slots IMO.It doesnt affect the performance much as its for the additional cards and resources which use PCI lines.

 

[spixel]

would it increase graphics card performance ?

 

[Ripper3]

It's for regular PCI only, doesn't affect PCI-E, which your graphics card is using.
Or it shouldn't at least, so no, in principal there should be no change in graphics performance.

 

[zCexVe]

LOL.Nope.But if you use a PCI graphics card.NOT PCI-e Graphics card.To be detailed it is like this.Usually Ina PC you have to send an IRQ request to get a line to send the info and process through the CPU.This PCI latency time is the time which the PC assigns the time for an IRQ to hold on that line for that device.After that time the IRQ will be freed for next IRQ request.More time more time he can have have the line.

 

[spixel]

well i guess theres no harm in increasing it

 

[francis511]

Higher value is better. Sometimes it can clear up bugs and conflicts. Multiply the value by no. of devices = 256 (e.g. 2x128 4x64)

 

[spixel]

Ok this may sound a bit stupid , but whats classed as a pci device ;D

 

[francis511]

Ok this may sound a bit stupid , but whats classed as a pci device ;D

Anything that goes in a pci slot e.g. X-fi card, t.v. card , raid controller card etc.

 

[Ketxxx]

If your using onboard audio its probably worthwhile increasing it to 64 cycles, this will add slightle better stability (in some cases) to the system as a whole, and in others help with audio quality.