I've posted this same question on the Via forum, so apologies if anyone has read it there, but I'm getting desparate!
I'm trying to set up a home recording studio on my PC (Asus A7v8x, xp2000, Win2K, KT400, 80GB Maxtor DM+9 ATA133, ATI Radeon7500 AIW, OCZ DDR400 256Mb(CL2), 350W PSU). I've just replaced the on-board audio with an M-audio Audiophile 2496, but it hasn't helped the stutter (nasty buzz-saw noise every 5 seconds). I've been ignoring it since I built the PC, but now it's kinda important.
SIS Sandra reports the PCI latency is too high on an unknown device labelled only as "3376", which I suspect is the Promise SATA RAID controller (which I'm not using). I've tried disabling this from "System". Also tried every value of PCI latency in the BIOS, high latency makes the problem worse, zero value improves things slightly, but I still get this report from Sandra and the stutter never disappears. I've also altered the graphics apperture to 32Mb (recommended by the Asus part of the AMD forum) and turned off the onboard audio from the BIOS.
I can also see the stutter on DVD, .avi, CD & MP3 playback, even animated GIF's (I suspect it may even get onto serial data from COM1). I'm also getting low memory bandwidth figures (lower than DDR333, but I've played with memory timings and got the best out of the board, running in DDR333 mode), but I think the PCI latency is the key. The soundcard is in the allegedy "ideal" slot, 1 away from the AGP and there are no other PCI devices (on board LAN used for broadband access), so there should be no IRQ problems. The only thing sharing the PCI is stuff managed by the Southbridge.
Any suggestions? All patches I've seen claim not to work for KT400, but I've tried some in desparation, with no results. I've got the latest VIA Hyperion 4 in 1 driver, tried all forms of VIA IDE patch and Realtech AC97 drivers. There are no updated drivers from M-audio either.
Could this be a hardware fault? I suspect I'm not alone,, as the VIA forum is littered with sound queries, but no sensible answers!
HELP!!!!!
I'm trying to set up a home recording studio on my PC (Asus A7v8x, xp2000, Win2K, KT400, 80GB Maxtor DM+9 ATA133, ATI Radeon7500 AIW, OCZ DDR400 256Mb(CL2), 350W PSU). I've just replaced the on-board audio with an M-audio Audiophile 2496, but it hasn't helped the stutter (nasty buzz-saw noise every 5 seconds). I've been ignoring it since I built the PC, but now it's kinda important.
SIS Sandra reports the PCI latency is too high on an unknown device labelled only as "3376", which I suspect is the Promise SATA RAID controller (which I'm not using). I've tried disabling this from "System". Also tried every value of PCI latency in the BIOS, high latency makes the problem worse, zero value improves things slightly, but I still get this report from Sandra and the stutter never disappears. I've also altered the graphics apperture to 32Mb (recommended by the Asus part of the AMD forum) and turned off the onboard audio from the BIOS.
I can also see the stutter on DVD, .avi, CD & MP3 playback, even animated GIF's (I suspect it may even get onto serial data from COM1). I'm also getting low memory bandwidth figures (lower than DDR333, but I've played with memory timings and got the best out of the board, running in DDR333 mode), but I think the PCI latency is the key. The soundcard is in the allegedy "ideal" slot, 1 away from the AGP and there are no other PCI devices (on board LAN used for broadband access), so there should be no IRQ problems. The only thing sharing the PCI is stuff managed by the Southbridge.
Any suggestions? All patches I've seen claim not to work for KT400, but I've tried some in desparation, with no results. I've got the latest VIA Hyperion 4 in 1 driver, tried all forms of VIA IDE patch and Realtech AC97 drivers. There are no updated drivers from M-audio either.
Could this be a hardware fault? I suspect I'm not alone,, as the VIA forum is littered with sound queries, but no sensible answers!
HELP!!!!!