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Music servers and other computer based digital audio technologies.

RE: * Update * A wonderful new twist!

After switching back to 45nm technology, I was surprised with the sterile sound and fortunately found the culprit! These new test changes (especially gpedit) were the cause. Also, an important BIOS setting not available in the H55M-UD2H mobo, PCI Latency, had to be addressed.

I reinstalled my 32nm setup with following changes:



  1. Upgraded to latest BIOS - F9d

  2. Used recommended settings as per site

  3. Used PCI Latency Tool 3.1 to set soundcard latency to 128. This adds a new service and requires BIOS devices under "Integrated peripherals" to remain enabled except for IDE, Serial Port and Sata ports 0-3. Remaining unused devices are disabled in Windows. Disabling other "integrated peripheral" devices in BIOS causes PCI Latency Tool to not recognise PCI devices.

  4. Vcc = 0.72500 (900MHz), Vgcore = 0.650 (400MHz)

  5. Vdram = 1.400 (600MHz), Vref = 0.600, Vdata = 0.560, Vaddress = 0.560

  6. Dram Timing = CL5 & Command Rate = 1


Sound quality not only meets previous best 45nm setup but surpasses it beautifully! I'm going to leave this setup for a while and see if there's further improvement. There's also another mobo on its way which hopefully removes the PCI Latency Tool.

Zalman cooler (with fan removed) does a great job. Temps are steady at 36°C (previous 34°C was achieved using Vcc of 0.70000V or one step lower).


This post is made possible by the generous support of people like you and our sponsors:
  Sonic Craft  


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