On Friday 06 May 2016 02:55:31 Danny Miller wrote: > I understand the computational requirements are not stressful, but I > know some have management issues. > > Right now I have a old Dell computer with one of the chipsets > specifically listed as "bad". I'm running Linux RT and LinuxCNC 2.7.4 > with a 7i92 card but the latency report is pretty high. I don't have > any love for this PC anyhow. Had it crash once, may be going south > anyhow. Wanna get a small SSHD too. > > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?FixingSMIIssues > > I went to Fry's looking for their "clearance computers" and there was > an HP 5700 and Lenovo M57 and an M58. Looked 'em up, that's Intel > Q963 Express and Intel Q35 chipset respectively. > > But the above URL says all the new Intel chipsets have SMI which may > cause latency problems. > > Anybody experienced opinions on this? > > Danny
Not on those, but since you mentioned Dell, I have an off-lease Dell Dimension 745 that I picked up for $140 sans HD and Windows 8. 4GiB of dram, more than enough to run linuxcnc and several other programs at the same time. I put my own HD with a recent hybrid wheezy based install on it, had to argue with udev a bit to make it go back to an eth0 default for the network port, put a 5i25 in it, and its sat there and just worked(tm) for about 6 months now, with the only reboots caused by either a power bump, or an update to a later kernel. Latency figures are such that software stepping might be affected, but the 5i25 covers it very well. I've been running the 2.8.0-pre builds from the buildbot longer than that. Solid as a rock with the 5i25 card doing the heavy lifting and lots more power than the intel D525MW boards in the other 2 machines. Running the servo-thread at 4 kilohertz, no base-thread, I've started a test project cutting air, and ran both konversation and firefox crawling the net with no apparent effects on either of the three's performance. So I am a happy camper. And there are kajillions of those available at your local computer service company. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
