Before I try customer support… here goes.
Built a new PC and kept my 3 WD caviar black audio drives. Everything else is new. C: drive has fresh install of Win 7 64 bit. w/ all updates and fresh 64 bit and 32 bit cubase 5.5.3 full version.
Problem: ASIO time clipping. In playback and/or recording of one track with no effects, ASIO time usage goes from 1% to clip every few seconds w/ audible tick in both 64 and 32 bit cubase.
My system:
MOBO Gigabyte Z77 UP4-TH
CPU: Xeon E3-1230 V2 (1155 Ivy bridge)
RAM: Corsair dominator 8 GIG 1600
HD: 3 WD caviar black 32 meg cache
PSU: NAXN 650w
Video: PNY GT 220
1394: SIIG DP firewire 2-port PCIe V2.0
Perifrial: 1 Mackie Blackbird (24/96k)
OP SYS: Win 7 home 64 bit
Cubase 5.5.3 64 and 32 bit
Optimization steps:
As cubase states on their web site it is meant to work with “normal” computers as long as the minimum requirements are met so I only did a few adjustments seeing that this is no slouch of a system. There is no blutooth and all updates have been done aside from bios update. These are some of the tips I found.
- Sys restore off
- firewall off
- internet disable
- power set max performance
- Cubase CPU energy saving off and multi processing on
- hybernate and screen saver off
- loaded legacy firewire driver
- disabled hyperthreading
- virtual mem. 0
- No secure sys running
Other thoughts: I tried to DMA: ON but SATA mode only works in AHCI and does not alow this option. There may have been a few other small tweeks I am forgetting. My system works great except for this one small problem. I set buffer as I would normally (256) do in my old 2 core AMD XP machine and even when I raise it it still clips. Also when I set ASIO to generic it goes away but at a latency of 40.0 ms not low enough for my use. I use to get 7-10ms with my old machine… What could it be?