October 2012 - WLUG - wlug.mailman3.com

Re: [Wlug] I presume we're meeting the 10th of Oct?

by Tim Keller

That's a great idea. I do lots and lots of virtualization stuff.. I'd be willing to do some research, setup a demo and do a talk about OpenStack. Chuck, what do you think? On Thu, Oct 4, 2012 at 9:19 PM, David Glaser <dglaser(a)glaserresearch.net>wrote: > How about the cloud -say OpenStack. I see references to it. > > -David > On 10/04/2012 03:38 PM, Tim Keller wrote: > > Hey Gang! > > I presume we're having a meeting on the 10th? Does anybody have a > topic/idea? > > Thanks, > Tim. > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". > > > _______________________________________________ > Wlug mailing listWlug@mail.wlug.orghttp://mail.wlug.org/mailman/listinfo/wlug > > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

Oct. 5, 2012

Re: [Wlug] I presume we're meeting the 10th of Oct?

by David Glaser

How about the cloud -say OpenStack. I see references to it. -David On 10/04/2012 03:38 PM, Tim Keller wrote: > Hey Gang! > > I presume we're having a meeting on the 10th? Does anybody have a > topic/idea? > > Thanks, > Tim. > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

Oct. 5, 2012

I presume we're meeting the 10th of Oct?

by Tim Keller

Hey Gang! I presume we're having a meeting on the 10th? Does anybody have a topic/idea? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

Oct. 4, 2012

Re: [Wlug] Wlug Digest, Vol 107, Issue 13

by Karl Lind

Hi Brett, First off, CMOS checksum errors during boot refer to MEMORY not the BIOS. Also almost all your symptoms point to a possible memory issue. Do Chuck's stuff to verify that you don't have a power drain that's causing a memory issue. Get a Memory Test utility and find out which DIMM is causing the problem. Carefully remove the DIMM and using a #2 pencil eraser, clean the contacts and replace the DIMM (The rubber removes oxidation that prevents contact) and don't forget to keep grounded! (You, not the DIMM). Cheers Karl On Sun, Sep 30, 2012 at 12:00 PM, <wlug-request(a)mail.wlug.org> wrote: > Send Wlug mailing list submissions to > wlug(a)mail.wlug.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.wlug.org/mailman/listinfo/wlug > or, via email, send a message with subject or body 'help' to > wlug-request(a)mail.wlug.org > > You can reach the person managing the list at > wlug-owner(a)mail.wlug.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Wlug digest..." > > > Today's Topics: > > 1. help diagnosing PC issue: suspect power supply (Brett Russ) > 2. Re: help diagnosing PC issue: suspect power supply > (Chuck Anderson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 29 Sep 2012 14:32:05 -0400 > From: Brett Russ <bruss(a)alum.wpi.edu> > Subject: [Wlug] help diagnosing PC issue: suspect power supply > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: > <CAGcHgFNRd2jLrywD977a0jZChqEREnNBt529abY0= > fh2OU5FAA(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > I'm trying to diagnose a home built PC running fine since 2007 but lately > starting to act odd. Here are the system specs: > Intel Core 2 Duo 1.8GHz cpu > Asus P5B Deluxe mobo > Nvidia 7900GS graphics card > Kingston KHX6400 2x1GB DDR2 memory > Sparkle ATX 400W power supply > 3x 1TB SATA HDDs > 1x SATA DVD-RW > > $ uname -a > Linux spider 3.0.0-25-generic #41-Ubuntu SMP Mon Aug 13 17:58:59 UTC 2012 > x86_64 x86_64 x86_64 GNU/Linux > > $ cat /etc/*release > DISTRIB_ID=Ubuntu > DISTRIB_RELEASE=11.10 > DISTRIB_CODENAME=oneiric > DISTRIB_DESCRIPTION="Ubuntu 11.10" > > $ uname -a > Linux spider 3.0.0-25-generic #41-Ubuntu SMP Mon Aug 13 17:58:59 UTC 2012 > x86_64 x86_64 x86_64 GNU/Linux > > > What recently changed: > > i) replaced monitor, last one died > > ii) (carefully) vacuumed the dust from inside. Kept hand on case chassis, > didn't touch any PCB/chips, etc. > > > Here are the symptoms: > > 1) first started seeing BIOS claims of bad CMOS checksum at boot time. > Immediately suspected the CMOS battery, replaced it and reset CMOS settings > but I continue to see this. This is the one symptom that I can't yet > place, unless it's simply a bad replacement battery. > > 2) next started seeing the monitor fail to wake up after entering power > save > > 3) powering on the PC shows issues: > > 3a) often the monitor won't wake at boot > > 3b) the bios often doesn't finish POST, gets stuck at splash screen > > 3c) bios settings often don't survive across power cycles (possibly related > to #1--battery issue?) > > 3d) bios doesn't always give the affirmative beep (likely same symptom as > 3a, 3b) > > 3e) a cold power on or reset can take several "tries" before the system > stays on. I.e. fans will spin up, then spin down, one to three times > before staying on. When this happens it's pretty much guaranteed that it > won't boot successfully. > > 4) system will freeze to user input while up. I.e. once I get Linux > booted, as long as I disable monitor power save it will stay running for a > while, but I observed it stopped responding to KB and mouse input earlier > this morning. > > > Here's what I've tried: > > a) reseated both DIMMs, reproduced issues; tried with just one DIMM, > repro'd; tried other DIMM, repro'd > > b) reseated graphics card, repro'd; removed graphics card (now headless), > repro'd problem 3e > > c) reseated CMOS battery (CR2032), repro'd > > d) pulled all non-essential cables and internal connections, including > power and SATA cables from all drives, repro'd > > e) updated BIOS to latest version, repro'd > > > Unfortunately I don't have another ATX power supply to try, but was > thinking of buying one. I might also try an old PCI video card, but I > suspect due to repro (b) above that it's not the cause. > > Anyone have any other insights or agree it sounds like a bad PS? I still > can't explain symptom (1), will probably buy another battery to be sure. > Five years seems like an old PC, but I'm not a gamer so this suits me fine. > > > Thanks, > Brett > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://mail.wlug.org/pipermail/wlug/attachments/20120929/8959d06a/attachmen… > > ------------------------------ > > Message: 2 > Date: Sat, 29 Sep 2012 18:19:47 -0400 > From: Chuck Anderson <cra(a)WPI.EDU> > Subject: Re: [Wlug] help diagnosing PC issue: suspect power supply > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: <20120929221947.GH12327(a)angus.ind.WPI.EDU> > Content-Type: text/plain; charset=us-ascii > > On Sat, Sep 29, 2012 at 02:32:05PM -0400, Brett Russ wrote: > > Sparkle ATX 400W power supply > > Anyone have any other insights or agree it sounds like a bad PS? I still > > can't explain symptom (1), will probably buy another battery to be sure. > > Five years seems like an old PC, but I'm not a gamer so this suits me > fine. > > I agree that the power supply is suspect. You can measure the voltage > on a spare power supply hard drive connector, there should be 12v from > black to yellow, and 5v from black to red. If that checks out, you > should measure from the motherboard ATX connector as some of the other > voltages may be out of spec. You can find the standard ATX pinouts > and voltages online. Finally, you can test with the power supply > completely disconnected from the PC. Again, you can find instructions > online for how to do that, as it requires a jumper wire for the power > supply to power on. > > Alternatively, it may be easier to just try a replacement. > > > ------------------------------ > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > > End of Wlug Digest, Vol 107, Issue 13 > ************************************* >

Oct. 1, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by Brett Russ

Thanks Chuck, On Sat, Sep 29, 2012 at 6:19 PM, Chuck Anderson <cra(a)wpi.edu> wrote: > I agree that the power supply is suspect. You can measure the voltage > on a spare power supply hard drive connector, there should be 12v from > black to yellow, and 5v from black to red. If that checks out, you > should measure from the motherboard ATX connector as some of the other > voltages may be out of spec. You can find the standard ATX pinouts > and voltages online. Finally, you can test with the power supply > completely disconnected from the PC. Again, you can find instructions > online for how to do that, as it requires a jumper wire for the power > supply to power on. I suppose it's time to buy a multimeter...or borrow one from work. > Alternatively, it may be easier to just try a replacement. I have a new one on the way. I'll reply here with the results. -BR

Oct. 1, 2012