Here is that output form CoH Helper. Also I it happens seemingly randomly, it might happen after 5 minutes or after an hour or 2. It doesn't happen during map loading (at least it hasn't yet). There seems to be no link to hard disk activity that I can figure. As for defragging, I just installed the game, but I can give it a try (usually takes awhile however).
---System information gathered by
CoH Helper version 0.1.1.8---
DxDiag gathered at April 17, 2010 10:30 (-04:00)
Operating System: Windows 7 Professional 64-bit (6.1, Build 7600) (7600.win7_gdr.100226-1909)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 04/08/09 16:53:02 Ver: 08.00.14
Central Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+ (2 CPUs), ~2.6GHz
Memory: 4096MB
.Net Memory Report: 2699MB out of 4095MB available
Page File: 6600MB (1587MB currently in use)
C Drive: (SAMSUNG SP1614C ATA Device) 31251MB out of 152524MB (20%) free
Q Drive: (WDC WD5000AAKS-07A7B0 ATA Device) 194154MB out of 476810MB (40%) free
D Drive: (EPYVA 2F8PEF4 SCSI CdRom Device) zero-size drive
E Drive: (HL-DT-ST DVD-RAM GH22LS30 ATA Device) zero-size drive
Windows directory location: C:\Windows
DirectX: DirectX 11
DirectX Diag version: 6.01.7600.16385 (64-bit version)
Display Notes: No problems found.
No problems found.
Sound Notes: No problems found.
No problems found.
No problems found.
Input Notes: No problems found.
Monitor:
Monitor's Max Resolution: (blank)
Video Device Name: NVIDIA GeForce 8800 GTS
Manufacturer / Chip: NVIDIA / GeForce 8800 GTS
Video Memory: 2084 MB
Driver Version: 8.17.11.9621
Driver Date: 1/12/2010 1:03:34 PM
Driver Language: English
Monitor:
Monitor's Max Resolution: (blank)
Video Device Name: NVIDIA GeForce 8800 GTS
Manufacturer / Chip: NVIDIA / GeForce 8800 GTS
Video Memory: 2084 MB
Driver Version: 8.17.11.9621
Driver Date: 1/12/2010 1:03:34 PM
Driver Language: English
Sound Device Description: Speakers (Realtek High Definition Audio)
Driver File: RTKVHD64.sys
Driver Version: 6.00.0001.5953
Driver Date: 10/6/2009 6:51:22 PM
Sound Device Description: Realtek Digital Output (Realtek High Definition Audio)
Driver File: RTKVHD64.sys
Driver Version: 6.00.0001.5953
Driver Date: 10/6/2009 6:51:22 PM
Sound Device Description: Realtek Digital Output(Optical) (Realtek High Definition Audio)
Driver File: RTKVHD64.sys
Driver Version: 6.00.0001.5953
Driver Date: 10/6/2009 6:51:22 PM
WMI Information
Motherboard Manufacturer: ASUSTeK Computer INC.
Motherboard Model: (empty)
Motherboard Product: M3N78-EM
Motherboard Version: Rev X.0x
BIOS Manufacturer: American Megatrends Inc.
BIOS Name: BIOS Date: 04/08/09 16:53:02 Ver: 08.00.14
BIOS Version: 040809 - 20090408
BIOS Release: 20090408000000.000000+000
Registry Information for Current User
Resolution: 1440x900
3D Resolution: 1440x900 (Not using renderscale)
Full Screen: No
Maximized: No
Screen Position: 61, 35
Refresh Rate: 60Hz
Vertical Sync Enabled: No
Physics Quality: High
Maximum Particles: 50000
Max Particle Fill? 10.000
Physics Card Enabled: No
Anti-aliasing: 4x
Anisotropic Filtering: 4x
Texture LOD Bias: Smooth
Water Effects: High Quality
Bloom: 1.000 (turned on)
Depth of Field Enabled: Yes
Desaturation Effects (Sepia) Enabled: Yes
Shader Detail: High
World Texture Level: Very High
Character Texture Level: Very High
World Detail Level (Vis_Scale): 2.000
Entity Detail Level: 2.000
Shadows Enabled: Yes
Gamma Correction: 1.000
Geometry Buffers (VBOs) Enabled: Yes
Suppression of Extra Player FX Enabled: No
Suppression of FX When Camera Close Enabled: No
Close Suppression Range: 3.000
Show Advertisements: Yes
Audio Mode: Performance
3D Audio: Yes
FX Sound Volume: 1.000
Music Sound Volume: 0.600
Show Advanced Graphics Options: Yes
Overall Graphics Quality: 1.000
Reverse Mouse Buttons: No
Save Login Username: Yes
Transfer Rate: Unknown bytes/second
Current Game Version: 1600.20100114.11T
Installation Directory: C:\Program Files (x86)\City of Heroes
Mod files in the Data directory
No modifications found
Not listed here but my downpipe is about 260 kb/s or 266,240 bytes per second. My upstream is around 50 kb/s or 51,200 bytes per second.