My Mac Pro 1,1 keeps freezing and crashing

Question

This happens regularly. Everytime I start up a game or try to watch a video I am forced to restart. This is the error report upon restarting:
Interval Since Last Panic Report:  41183 sec
Panics Since Last Report:          2
Anonymous UUID:                    463145E6-2C48-4D7F-9C80-4E103FE0840A
Sun Sep 29 21:53:04 2013
panic(cpu 1 caller 0x2b1391): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x4, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-1699.32.7/osfmk/i386/pmap.c:3024
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x82aa3b88 : 0x2203de (0x6b08cc 0x82aa3ba8 0x229fb0 0x0)
0x82aa3bb8 : 0x2b1391 (0x6b8eec 0x4 0x0 0x0)
0x82aa3c08 : 0x2b44d5 (0x867960 0x75383000 0x0 0x75384000)
0x82aa3c68 : 0x28667e (0x127df6 0x0 0x0 0x82aa3ca8)
0x82aa3cc8 : 0x2789a1 (0x11bf1998 0x0 0x0 0x1000)
0x82aa3d88 : 0x27baca (0x0 0x75384000 0x0 0x1)
0x82aa3e38 : 0x21c560 (0x266dd68 0x75383000 0x0 0x8)
0x82aa3ea8 : 0x2533ef (0xd35920c 0x7e9f 0xe1370a0 0xe1370b8)
0x82aa3ed8 : 0x222db6 (0x10355598 0xe137084 0x82aa3f0c 0x2c3f24)
0x82aa3f08 : 0x214063 (0x10355500 0x11715ea0 0xe52e7e0 0x10355500)
0x82aa3f48 : 0x21b25
Model: MacPro1,1, BootROM MP11.005C.B08, 4 processors, Dual-Core Intel Xeon, 3 GHz, 9 GB, SMC 1.7f10
Graphics: ATI Radeon X1900 XT, ATY,RadeonX1900, PCIe, 512 MB
Memory Module: DIMM Riser A/DIMM 1, 512 MB, DDR2 FB-DIMM, 667 MHz, 0x80AD, 0x48594D5035363441373242503844322D5935
Memory Module: DIMM Riser A/DIMM 2, 512 MB, DDR2 FB-DIMM, 667 MHz, 0x80AD, 0x48594D5035363441373242503844322D5935
Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 667 MHz, 0x80AD, 0x475232444632474258384859363637510000
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 667 MHz, 0x80AD, 0x475232444632474258384859363637510000
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 667 MHz, 0x02FE, 0x47523244463536373238454C363637510000
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 667 MHz, 0x02FE, 0x47523244463536373238454C363637510000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.131.36.15)
Network Service: Ethernet 2, Ethernet, en1
PCI Card: pcibdbd,a10c, sppci_video, Slot-4@4,1,0
PCI Card: ATY,RadeonX1900, sppci_displaycontroller, Slot-1
PCI Card: pci1033,35, sppci_usbopenhost, Slot-3@15,1,0
PCI Card: pci1033,35, sppci_usbopenhost, Slot-3@15,1,1
PCI Card: pci1033,e0, USB Enhanced Host Controller, Slot-3@15,1,2
PCI Card: pci104c,8025, sppci_ieee1394openhci, Slot-3@15,2,0
Serial ATA Device: ST3250824AS  P, 250.06 GB
Serial ATA Device: WL300GBSATA, 300.07 GB
Parallel ATA Device: PIONEER DVD-RW  DVR-111D
USB Device: USB Receiver, 0x046d  (Logitech Inc.), 0xc501, 0x1d100000 / 2
USB Device: Generic USB Hub, 0x058f  (Alcor Micro, Corp.), 0x9254, 0x5d100000 / 2
USB Device: Hub in Apple Extended USB Keyboard, apple_vendor_id, 0x1003, 0x5d140000 / 3
USB Device: Apple Extended USB Keyboard, apple_vendor_id, 0x020b, 0x5d143000 / 4
FireWire Device: built-in_hub, 800mbit_speed
Any help is very much appreciated. Thank you.

Answer 1

Hardware Monitor is an application that you installed. See its documentation or contact the developer. As for Soundflower, I believe that it's installed by some Ambrosia or Rogue Amoeba products that have to do with audio output. I can't be more specific because I never I install such things myself.
Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.
Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.
Here are some general guidelines. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmyrmac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button.
You may have to log out or reboot in order to complete an uninstallation.
If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.
Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" that purport to remove software.