Solid State Logic 4.3 Manual De Usuario

 
 
 
 

Page 11 of 59 

 

 

This makes the Soundscape platform more efficient than others, since the "native" PCI Burst Speed 
can be used for an Interrupt  (PCI Latency Timer set to 64), whereas other cards may use different 
values like for instance 255, making them more tolerant but also making it difficult for other 
devices to get CPU attention. 
 
Generally speaking, if you are specifying a PC for Soundscape, we recommend NForce chipsets for 
AMD processors and Intel chipsets for Intel processors. VIA and SIS chipsets are best avoided, 
whatever your choice of processor. 
 

 
Parameter Recommended 

setting 

PCI Latency Timer *  64 
Spread Spectrum Clock 

Disable 

System Speed and Overclocking (Turbo Mode) 

Disable or Standard 

Onboard Audio/Gameport/MIDI 

Disable 

Unused onboard devices (e.g. Serial Port/Com, LPT Printer, FW, USB) 

Disable 

 

PCI Latency Timer * 

64 

Spread Spectrum Clock 

Disable 

System Speed and Overclocking (Turbo Mode) 

Disable or Standard 

Onboard Audio/Gameport/MIDI 

Disable 

Unused onboard devices (e.g. Serial Port/Com, LPT Printer, FW, USB) 

Disable 

 
* If your BIOS does not allow you to set the PCI Latency value, you may use the "PCI Latency 
Tool" available from http://downloads.guru3d.com/download.php?det=951 
 

 
Soundscape PCI audio cards require an IRQ number to operate (this is not the case for the PCI 
Host Interface card). They may share an IRQ with another device, provided that the other device is 
also fully capable of sharing an IRQ. Multiple Soundscape PCI audio cards may share the same 
IRQ. 
 
On systems that use hyperthreading there is no way to assign physical IRQs to chosen PCI slots. In 
ACPI mode (which is a must when using hyperthreading or dual CPU systems), the BIOS and 
Windows manage all PCI devices through the PCI Interrupt Handler on IRQ 9, and only allow 
IRQs higher than 15 for PCI devices, regardless of settings made in the BIOS.