Buffer Underflow/CPU usage warning PT 10 Mbox pro 3

[Sidecut]

I am using a Win 7 PC. Previosuly I was using PT 0 with the Mboc Pro 3 without issue running very large session. I recently upgraded to PT 10 and have had a string of problems. The latest is with the buffer underflow or CPU usage warning.

In a session that I was experimenting using 32 bit, I get either message always in the same place at the end of the song. This is a small session with few tracks or plug ins and there is nothing major like lots of edits happening at this spot.

I have done the Win 7 optimizations. I noticed there were people with a similar issue on macs that found a work around by creating a custom PT Aggregate I/O

Here Sandra:

< Computer >
Model: Dell XPS 730
Workgroup: WORKGROUP
Host Name: Harrison-PC
User: Harrison

< Processor >
Model: Intel(R) Core(TM)2 Quad CPU Q9550 @
2.83GHz
Speed: 2.83GHz
Cores per Processor: 4 Unit(s)
Threads per Core: 1 Unit(s)
Type: Quad-Core
Integrated Data Cache: 4x 32kB, Synchronous, Write-Thru, 8-way, 64
byte line size
L2 On-board Cache: 2x 6MB, ECC, Synchronous, ATC, 24-way, 64
byte line size, 2 threads sharing

< Computer >
Mainboard: Dell 0F642F
BIOS: Dell 1.0.4 06/24/2008
Bus(es): ISA X-Bus PCI PCIe IMB USB FireWire/1394 i2c/
SMBus
Multi-Processor (MP) Support: No
Multi-Processor Advanced PIC (:Yes
Total Memory: 4GB DIMM DDR2

< Chipset >
Model: Dell nForce 790i Host Bridge
Front Side Bus Speed: 4x 333MHz (1.33GHz)
Total Memory: 4GB DIMM DDR2
Memory Bus Speed: 2x 800MHz (1.6GHz)

< Memory Module(s) >
Memory Module: Corsair CM3X1G-1600C8D 1GB DIMM DDR3 PC3-
10700U DDR3-1334 (9-9-9-24 5-34-10-5)
Memory Module: Corsair CM3X1G-1600C8D 1GB DIMM DDR3 PC3-
10700U DDR3-1334 (9-9-9-24 5-34-10-5)
Memory Module: Corsair CM3X1G-1600C8D 1GB DIMM DDR3 PC3-
10700U DDR3-1334 (9-9-9-24 5-34-10-5)
Memory Module: Corsair CM3X1G-1600C8D 1GB DIMM DDR3 PC3-
10700U DDR3-1334 (9-9-9-24 5-34-10-5)

< Video System >
Video Adapter: NVIDIA GeForce 9800 GT (2x 112 SM4.0 1.4GHz,
2x 512MB DDR3 2x900MHz, PCIe 2.00 x16)

< Graphics Processor >
OpenCL Processor: NVIDIA GeForce 9800 GT (112SP 14C 1.5GHz,
512MB 2x900MHz)
CUDA Processor: NVIDIA GeForce 9800 GT (112SP 14C 1.5GHz,
512MB 2x900MHz)
Compute Shader Processor: NVIDIA GeForce 9800 GT (112SP 1.4GHz,
495.6MB 2x900MHz)

< Storage Devices >
Seagate ST3500620AS (500.1GB, :466GB (C:)
Seagate ST3500620AS (500.1GB, :466GB (D:)
Seagate ST3500413AS (500.1GB, :466GB (F:)
Hitachi HDS723020BLA642 (2TB, :2TB (G:)
TSSTcorp DVD+/-RW TS-H653F (SA:N/A (E:)

< Logical Storage Devices >
Hard Disk (C:): 462GB (NTFS) @ Seagate ST3500620AS (500.1GB,
SATA300, 3.5", 7200rpm, NCQ, 16MB Cache)
Hard Disk (D:): 466GB (NTFS) @ Seagate ST3500620AS (500.1GB,
SATA300, 3.5", 7200rpm, NCQ, 16MB Cache)
Audio Drive (F:): 466GB (NTFS) @ Seagate ST3500413AS (500.1GB,
SATA600, 3.5", 7200rpm, NCQ, 16MB Cache)
New Volume (G:): 2TB (NTFS) @ Hitachi HDS723020BLA642 (2TB,
USB, 3.5", 7200rpm)
Optical Drive (E:): N/A @ TSSTcorp DVD+/-RW TS-H653F (SATA150,
DVD+-RW, CD-RW, 2MB Cache)

< Peripherals >
LPC Hub Controller 1: Dell MCP55 LPC Bridge
LPC Legacy Controller 1: Winbond W83627DHG
Serial Port(s): 1
Disk Controller: Dell MCP55 IDE
Disk Controller: Dell MCP55 SATA Controller
Disk Controller: Dell MCP55 SATA Controller
Disk Controller: Dell MCP55 SATA Controller
Disk Controller: Dell JMB36X PCIE-to-SATAII/IDE RAID
Controller
USB Controller 1: Dell MCP55 USB Controller
USB Controller 2: Dell MCP55 USB Controller
FireWire/1394 Controller 1: nVidia TSB43AB22 1394a-2000 OHCI PHY/Link-
Layer Controller
SMBus/i2c Controller 1: nVidia MCP5+ SMBus 1
SMBus/i2c Controller 2: nVidia MCP5+ SMBus 2

< Printers and Faxes >
Printer: Microsoft XPS Document Writer (600x600,
Colour)
Printer: HP LaserJet 4000 Series PCL 5 (600x600, USB)
Fax: Microsoft Shared Fax Driver (200x200)

< Network Services >
Network Adapter: NVIDIA nForce Networking Controller (Ethernet,
1Gbps)
Network Adapter: NVIDIA nForce Networking Controller #2

< Power Management >
Mains (AC) Line Status: On-Line

< Operating System >
Windows System: Microsoft Windows 7 Ultimate 6.01.7601
(Service Pack 1)
Platform Compliance: x64

< Windows Experience Index >
Current System: 5.9

< Performance Enhancing Tips >
Tip 2546: Large memory modules should be ECC/Parity.
Tip 2: Double-click tip or press Enter while a tip
is selected for more information about the
tip.

[albee1952]

nForce chipset with an intel cpu is a recipe for failure

[Sidecut]

The system has been working fine on PT 8 MP and PT 9. It is only when using PT 10 that I started to have any resource issues and this one while using 32bit is particularly strange.

[louieshowers]

Originally Posted by Sidecut

The system has been working fine on PT 8 MP and PT 9. It is only when using PT 10 that I started to have any resource issues and this one while using 32bit is particularly strange.

Join the club! Pro tools 10 on Windows 7 is tragic!! regardless of what system optimizations you perform...Save yourself the stress. Check out these other threads.

http://duc.avid.com/showthread.php?t=322295
http://duc.avid.com/showthread.php?t=310490
http://duc.avid.com/showthread.php?t=321658