On Friday, November 04, 2011 07:14:16 PM Viesturs Lācis did opine: > 2011/11/4 Slavko Kocjancic <[email protected]>: > > This seems more driver board problem as PC overheating. > > If PC overheats then is more possible to hangup. I think you drive > > some electronic on the edge. Ie if you use printer port that is > > possible to work just in margin and when heat's up then doesn't work > > more. But another thing is that you say that after that error you can > > continue work that is wery strange. > > And as few people already say. Dry wood dust doesn't harm computer. > > But they accumulate on all fans and heatsinks and cause problems. > > Presurized case with fan with filter seems good idea. For monitor's > > there is no fan so no trouble of that kind should be expected. > > They have changed at least 3 LCD monitors in less than 2 years, so I > think that also LCD monitors are not happy about the wood dust.
That probably is not the dust at all. All of the earlier, non-led monitors have a switchmode, fairly high voltage supply to run the cold cathode CCFL lamp that is the source of light behind the screen. These are very high performance capacitors, and it doesn't take much in the way of ESR buildup before they die & refuse to light the lamp. This Samsung Syncmaster 205BW has had those two $1.75 caps replaced twice, and the last time I think I got some good caps as its overdue for fresh ones and not miss-behaving yet. > And the tendency that problems start to appear, when machine has > worked a little while and after 6-10 hours it gets horrible, tells me > that the dust is the problem exactly because of the reason You > mentioned - it accumulates on surfaces and disrupts normal cooling of > different electronic components. And as they are gradually > overheating, they are starting to malfunction. > > Are You saying that there might be some disturbances in Mesa card? The > machine has 4 steppers and Mesa 7i43 for step generation. There is VFD > drive located next to it. Could magnetic field from VFD influence 7i43 > card? > > > Is there anything I can do to test, where exactly the problem is? > > > I already have convinced client to change the PC and to put it in > dust-proof case. > But then I have to find the real cause of the problem to eliminate it, > so that customer is happy - that is very large wood-working company > that produces parts for IKEA and has total annual turnover of ~60M > USD. > > 2011/11/4 Jon Elson <[email protected]>: > > I can't recommend a specific manufactured case, but the Intel Atom > > CPUs are known to work with EMC2 well. We have used the D510MO and > > now the D525MW with good latency and fine parallel port operation. > > These boards dissipate less than 12 W (actually, I think more like > > half that with EMC running), and have no fan. You can get a SATA SSD > > for the disk. > > Thanks! That is exactly my plan - D525MW board and SSD drive - I > already have used D510/D525 in all of my previous EMC2-PC builds. > > So are You saying that if I fit LCD monitor, D525 board, SSD drive > and usual 200W PSU with a fan to circulate the air in the box in a > completely closed 500*500*100 mm box, it should be cool enough? > I assume that heat from PSU is proportional to the load that is drawn > from it. Is that correct? > > 2011/11/4 gene heskett <[email protected]>: > > OTOH, I suspect your setup might be getting 20x the use mine is, so > > you might want to consider that. > > Machine has to operate 3 shifts a day, so basically - 24/7. > > 2011/11/4 Dave <[email protected]>: > > Yet another approach is to duct clean pressurized air into the cabinet > > from some other location and put a vent on the side of the box to > > allow the air to escape > > Thanks! The idea is good, but it won't work, as the machine is placed > in the middle of the facility, so they will not accept the cost of > implementing it. > > 2011/11/4 Mark Cason <[email protected]>: > > Instead of using water, I know of a couple of high end industrial > > computer systems that have the motherboards submerged in chilled > > mineral oil. > > I do not think that customer will accept anything like that. And I > think that there would be difficulties to see, what the monitor is > showing, as it would be inside the oil. > > Viesturs > > ------------------------------------------------------------------------ > ------ RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> Q: What do you call a half-dozen Indians with Asian flu? A: Six sick Sikhs (sic). ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
