Processor    AMD Sempron(tm) 2600+
Memory    507MB
Audio AdapterVIA8237 - VIA 8237

ATA SAMSUNG HD502HJ
_NEC DVD_RW ND-3500AG

Cache Size	256kb
Frequency	1827.08MHz
BogoMIPS	3654.16
Byte Order	Little Endian

fpu	Floating Point Unit
vme	Virtual 86 Mode Extension
de	Debug Extensions - I/O breakpoints
pse	Page Size Extensions (4MB pages)
tsc	Time Stamp Counter and RDTSC instruction
msr	Model Specific Registers
pae	Physical Address Extensions
mce	Machine Check Architeture
cx8	CMPXCHG8 instruction
apic	Advanced Programmable Interrupt Controller
sep	Fast System Call (SYSENTER/SYSEXIT)
mtrr	Memory Type Range Registers
pge	Page Global Enable
mca	Machine Check Architecture
cmov	Conditional Move instruction
pat	Page Attribute Table
pse36	36bit Page Size Extensions
mmx	MMX technology
fxsr	FXSAVE and FXRSTOR instructions
sse	SSE instructions
syscall	SYSCALL and SYSEXIT instructions
mp	Multiprocessing Capable
mmxext	Extended MMX Technology
3dnowext	Extended 3DNow! Technology
3dnow	3DNow! Technology

PCI Devices
Host bridge	VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge (rev 80)
PCI bridge	VIA Technologies, Inc. VT8237/VX700 PCI Bridge (prog-if 00 [Normal decode])
RAID bus controller	Silicon Image, Inc. SiI 3124 PCI-X Serial ATA Controller (rev 02)
IDE interface	VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
USB controller	VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) (prog-if 00 [UHCI])
USB controller	VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) (prog-if 00 [UHCI])
USB controller	VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) (prog-if 00 [UHCI])
USB controller	VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) (prog-if 00 [UHCI])
USB controller	VIA Technologies, Inc. USB 2.0 (rev 86) (prog-if 20 [EHCI])
ISA bridge	VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
Multimedia audio controller	VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
Ethernet controller	VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
FireWire (IEEE 1394)	VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 80) (prog-if 10 [OHCI])
VGA compatible controller	Advanced Micro Devices, Inc. [AMD/ATI] RV280 [Radeon 9200 SE] (rev 01) (prog-if 00 [VGA controller])
Display controller	Advanced Micro Devices, Inc. [AMD/ATI] RV280 [Radeon 9200 SE] (Secondary) (rev 01)

Board
Name	GA-7VASMFS
Vendor	Gigabyte Technology Co., Ltd. (www.gigabyte.com.tw)

You've chased the 'culprit' this far and it sounds like you have that one in a million combo that is striking out regarding the ppa issue.

You could probably live with the HDD designation.

If the problem is the combination of the cpu/mobo ~ can you change the cpu?  The Sempron 2600+ should be 'upgradeable' and for a board that old, compatible cpu's are nearly free.  I'm thinking one of the Barton core Athlons would probably work fine.

An update.Tried 3.5 kernel. Same python error.

alar@GA-7VASMFS:~$ uname -a
Linux GA-7VASMFS 3.5.0-51-generic #76~precise1-Ubuntu SMP Fri May 16 16:52:52 UTC 2014 i686 athlon i386 GNU/Linux
alar@GA-7VASMFS:~$ sudo add-apt-repository ppa:linrunner/tlp
You are about to add the following PPA to your system:
 TLP is a power management tool for Linux. It brings you the benefits of advanced power management without the need to understand every technical detail.

Project homepage: http://linrunner.de/tlp
 More info: https://launchpad.net/~linrunner/+archive/tlp
Press [ENTER] to continue or ctrl-c to cancel adding it

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 99, in run
    self.add_ppa_signing_key(self.ppa_path)
  File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 132, in add_ppa_signing_key
    tmp_keyring_dir = tempfile.mkdtemp()
  File "/usr/lib/python2.7/tempfile.py", line 322, in mkdtemp
    name = names.next()
  File "/usr/lib/python2.7/tempfile.py", line 141, in next
    letters = [choose(c) for dummy in "123456"]
  File "/usr/lib/python2.7/random.py", line 274, in choice
    return seq[int(self.random() * len(seq))]  # raises IndexError if seq is empty
ValueError: cannot convert float NaN to integer

http://download.autodesk.com/global/docs/maya2014/en_us/index.html?url=files/Python_Python_and_threading.htm,topicNumber=d30e815215

This is a similar config to my junker case. Not the same processor and RAm!

http://browser.primatelabs.com/geekbench2/view/73302