Slow USB and SATA Transfer Speeds in Jaunty 9.04

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Since installing Ubuntu 9.04 I noticed USB and Hard Drive transfers are not
very fast. I'm transferring 15gb to an external HDD right now and it's going
about 4MB a sec. At first it starts at 25MB/sec then it just slows down to a
crawl.

I've been following this thread and this is exactly whats going on:

[url]http://ubuntuforums.org/showthread.php?t=1112701[/url]

I have tried mounting the external usb HDD with -o sync or -o async and
even -o nosync and the only thing they do is increase the initial "burst"
speed but the transfer rate still slows to a crawl after a couple minutes.
By default, I get constant 4mb/sec transfers if I use the automount function
under nautilus (i.e. just clicking on the found external drive).

USB 2.0 is enabled and no legacy support is enabled.
I have an AMD64 5600+ and a biostar ta790gxba2 motherboard

Included is my lspci, lsusb, and lsmod:

lsmod

Code:
Module Size Used by
usb_storage 94912 1
binfmt_misc 18572 1
ppdev 16904 0
bridge 63904 0
stp 11140 1 bridge
bnep 22912 2
lp 19588 0
parport 49584 2 ppdev,lp
snd_emu10k1_synth 15488 0
snd_emux_synth 46208 1 snd_emu10k1_synth
snd_seq_virmidi 14464 1 snd_emux_synth
snd_seq_midi_emul 16000 1 snd_emux_synth
snd_emu10k1 162720 3 snd_emu10k1_synth
snd_hda_intel 557364 3
snd_ac97_codec 133848 1 snd_emu10k1
snd_seq_dummy 11524 0
ac97_bus 10368 1 snd_ac97_codec
snd_seq_oss 41984 0
snd_pcm_oss 52352 0
snd_mixer_oss 24960 1 snd_pcm_oss
snd_seq_midi 15744 0
snd_rawmidi 33920 3 snd_seq_virmidi,snd_emu10k1,snd_seq_midi
snd_seq_midi_event 16512 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi
snd_pcm 99336 4
snd_emu10k1,snd_hda_intel,snd_ac97_codec,snd_pcm_oss
snd_seq 66272 9
snd_emux_synth,snd_seq_virmidi,snd_seq_midi_emul,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_util_mem 13184 2 snd_emux_synth,snd_emu10k1
snd_timer 34064 3 snd_emu10k1,snd_pcm,snd_seq
snd_seq_device 16276 8
snd_emu10k1_synth,snd_emux_synth,snd_emu10k1,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
emu10k1_gp 11520 0
snd_hwdep 16776 2 snd_emux_synth,snd_emu10k1
i2c_piix4 20112 0
psmouse 64028 0
gameport 21520 2 emu10k1_gp
snd 78792 24
snd_emux_synth,snd_seq_virmidi,snd_emu10k1,snd_hda_intel,snd_ac97_codec,snd_seq_oss,snd_pcm_oss,snd_mixer_oss,snd_rawmidi,snd_pcm,snd_seq,snd_timer,snd_seq_device,snd_hwdep
soundcore 16800 1 snd
snd_page_alloc 18704 3 snd_emu10k1,snd_hda_intel,snd_pcm
k8temp 13440 0
pcspkr 11136 0
serio_raw 14468 0
nvidia 8123768 36
ohci1394 42036 0
ieee1394 108288 1 ohci1394
r8169 46596 0
mii 14464 1 r8169
usbhid 47040 0
fbcon 49792 0
tileblit 11264 1 fbcon
font 17024 1 fbcon
bitblit 14464 1 fbcon
softcursor 10368 1 bitblitlspci

Code:
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
00:02.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge
(ext gfx port 0)
00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge
(PCIE port 3)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller
[IDE mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0
Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0
Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3a)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2
Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation GeForce 9800 GT (rev
a2)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B
PCI Express Gigabit Ethernet controller (rev 02)
03:05.0 Multimedia audio controller: Creative Labs SB Audigy (rev 03)
03:05.1 Input device controller: Creative Labs SB Audigy Game Port (rev 03)
03:05.2 FireWire (IEEE 1394): Creative Labs SB Audigy FireWire Portlsusb

Code:
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 05e3:0702 Genesys Logic, Inc. USB 2.0 IDE Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 045e:0039 Microsoft Corp. IntelliMouse Optical
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
When looking for solutions to this problem I noticed the suggestion of
modprobe -r ehci_hcd

But when I try that it says Module ehci_hcd not found. Maybe this is the
problem? If anyone can help me with this I would greatly appreciate it. Let
me know if you need more information. Thanks!

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