* [9fans] Plan 9 on VIA C7 @ 2011-07-06 18:34 Akshat Kumar 2011-07-06 19:06 ` Lyndon Nerenberg (VE6BBM/VE7TFX) ` (3 more replies) 0 siblings, 4 replies; 16+ messages in thread From: Akshat Kumar @ 2011-07-06 18:34 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Looking to get the following motherboard: Jetway VIA C7 1.5GHz CN700 It would work well to house 2 IDE and 1 SATA drives. Has anyone tried Plan 9 on this, before I commit $100 to it? Thanks, ak ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-06 18:34 [9fans] Plan 9 on VIA C7 Akshat Kumar @ 2011-07-06 19:06 ` Lyndon Nerenberg (VE6BBM/VE7TFX) 2011-07-07 5:21 ` cinap_lenrek ` (2 subsequent siblings) 3 siblings, 0 replies; 16+ messages in thread From: Lyndon Nerenberg (VE6BBM/VE7TFX) @ 2011-07-06 19:06 UTC (permalink / raw) To: 9fans > Jetway VIA C7 1.5GHz CN700 My primary terminal is an Epia-EX motherboard with a 1 GHz C3. It's diskless so I can't speak for the IDE or SATA support, but video (1920x1080) and network are fine. If the board you are looking at uses the same (or similar) N/S-bridge chips you should be fine. --lyndon ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-06 18:34 [9fans] Plan 9 on VIA C7 Akshat Kumar 2011-07-06 19:06 ` Lyndon Nerenberg (VE6BBM/VE7TFX) @ 2011-07-07 5:21 ` cinap_lenrek 2011-07-07 7:56 ` Akshat Kumar 2011-07-08 20:02 ` Eris Discordia [not found] ` <98341AF97AF04C5D2915B463@192.168.1.2> 3 siblings, 1 reply; 16+ messages in thread From: cinap_lenrek @ 2011-07-07 5:21 UTC (permalink / raw) To: 9fans had a via c7 machine once and i had problems with ide and sata. gave spontanious i/o errors if you use multiple drives and sata was emulated as ide. i use plan9 on sb600 based machines now and it works perfectly. -- cinap ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-07 5:21 ` cinap_lenrek @ 2011-07-07 7:56 ` Akshat Kumar 2011-07-07 8:00 ` cinap_lenrek 0 siblings, 1 reply; 16+ messages in thread From: Akshat Kumar @ 2011-07-07 7:56 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Is the VIA C7 too old to support AHCI? That is, do you have to emulate SATA as IDE? Best, ak On Wed, Jul 6, 2011 at 10:21 PM, <cinap_lenrek@gmx.de> wrote: > had a via c7 machine once and i had problems with ide and sata. > > gave spontanious i/o errors if you use multiple drives and sata > was emulated as ide. > > i use plan9 on sb600 based machines now and it works perfectly. > > -- > cinap > > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-07 7:56 ` Akshat Kumar @ 2011-07-07 8:00 ` cinap_lenrek 2011-07-07 8:16 ` Akshat Kumar [not found] ` <CABwSpPCnw2A80_gCxxN-6eH21Dg4oEF=Td6V4XuC1yEs3pTayg@mail.gmail.c> 0 siblings, 2 replies; 16+ messages in thread From: cinap_lenrek @ 2011-07-07 8:00 UTC (permalink / raw) To: 9fans it didnt support ahci. -- cinap ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-07 8:00 ` cinap_lenrek @ 2011-07-07 8:16 ` Akshat Kumar [not found] ` <CABwSpPCnw2A80_gCxxN-6eH21Dg4oEF=Td6V4XuC1yEs3pTayg@mail.gmail.c> 1 sibling, 0 replies; 16+ messages in thread From: Akshat Kumar @ 2011-07-07 8:16 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs SB600 seems to support AHCI. Could you name some mobos based on SB600, that you use? On Thu, Jul 7, 2011 at 1:00 AM, <cinap_lenrek@gmx.de> wrote: > it didnt support ahci. > > -- > cinap > > ^ permalink raw reply [flat|nested] 16+ messages in thread
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* Re: [9fans] Plan 9 on VIA C7 [not found] ` <CABwSpPCnw2A80_gCxxN-6eH21Dg4oEF=Td6V4XuC1yEs3pTayg@mail.gmail.c> @ 2011-07-07 15:28 ` erik quanstrom 0 siblings, 0 replies; 16+ messages in thread From: erik quanstrom @ 2011-07-07 15:28 UTC (permalink / raw) To: akumar, 9fans On Thu Jul 7 04:17:42 EDT 2011, akumar@mail.nanosouffle.net wrote: > SB600 seems to support AHCI. > Could you name some mobos > based on SB600, that you use? http://www.quanstro.net/plan9/9atom/index.html - erik ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-06 18:34 [9fans] Plan 9 on VIA C7 Akshat Kumar 2011-07-06 19:06 ` Lyndon Nerenberg (VE6BBM/VE7TFX) 2011-07-07 5:21 ` cinap_lenrek @ 2011-07-08 20:02 ` Eris Discordia [not found] ` <98341AF97AF04C5D2915B463@192.168.1.2> 3 siblings, 0 replies; 16+ messages in thread From: Eris Discordia @ 2011-07-08 20:02 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Despite being touted as fanless and most C7-based boards being equipped only with heatsinks they get hot as hell. Right now I'm experimenting on a board (custom form factor) built around VIA Eden 1.2 GHz, CX700 chipset, with FreeBSD 8.2-RELEASE (1 GB RAM, 8 GB IDE SSD, networked, and an external HDD over USB). The following make it undesirable: 1. the temperature when it's passively cooled, 2. frequent unexplained spontaneous reboots (botched ACPI? missed IRQs?), 3. low-quality (RTL-81xx family, in this case 8139, a.k.a 8100) NIC chip. Lowering CPU frequency down to 400 MHz does not help, either. I suggest getting an Atom-based board instead, if it makes sense for you. P.S. As a last resort I'm trying to go without ACPI and see if the thing will stay up for more than a week. P.P.S. Various steppings of the C3 family, too, caused various headaches (with Longhaul or VIA Padlock). Overall, VIA's track record in this field is not remarkable. --On Wednesday, July 06, 2011 11:34 -0700 Akshat Kumar <akumar@mail.nanosouffle.net> wrote: > Looking to get the following motherboard: > > Jetway VIA C7 1.5GHz CN700 > > It would work well to house 2 IDE and 1 SATA > drives. Has anyone tried Plan 9 on this, before > I commit $100 to it? > > > Thanks, > ak > ^ permalink raw reply [flat|nested] 16+ messages in thread
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* Re: [9fans] Plan 9 on VIA C7 [not found] ` <98341AF97AF04C5D2915B463@192.168.1.2> @ 2011-07-08 21:59 ` ron minnich 2011-07-09 0:26 ` Eris Discordia ` (2 more replies) 0 siblings, 3 replies; 16+ messages in thread From: ron minnich @ 2011-07-08 21:59 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Systems that get hot as hell can need a surprisingly small amount of air motion to cool down. I built this minicluster that got incredibly hot, i.e. you could burn yourself on it: http://tinyurl.com/3o229ho What you see strapped to it is a 12V fan from a dell desktop which I ran at 5V, not 12V (a trick I learned from John DeGood). Very little air had to move, it was noiseless, and it all cooled right down. You don't need huge noisy fans in all cases. ron ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-08 21:59 ` ron minnich @ 2011-07-09 0:26 ` Eris Discordia [not found] ` <6F7509F3840C27B44BBE7F9F@192.168.1.2> 2011-07-11 0:35 ` John DeGood 2 siblings, 0 replies; 16+ messages in thread From: Eris Discordia @ 2011-07-09 0:26 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Very good point. And, an extremely tempting experiment you have introduced me/us to out of your mighty rucksack. Could prove to be the downfall of me, buying a few more PC-104 (don't need be PC-104+, right?) Geode boards (I already got one based on LX 800). Thank you :-) Then, even without active cooling heat does flow more rapidly from a hotter source to the ambient reservoir than from a cooler source. However, even if you manage to get as cool as the cooler source by throwing in lightweight active cooling you have barely arrived at the start line. Besides, you know far far far better than I, final temperatures equal, heat dissipated thus shows up on your electricity bill. (May be negligible for running just a few such cores.) If given a choice I'd go with something that does not generate the heat in the first place. --On Friday, July 08, 2011 14:59 -0700 ron minnich <rminnich@gmail.com> wrote: > Systems that get hot as hell can need a surprisingly small amount of > air motion to cool down. > > I built this minicluster that got incredibly hot, i.e. you could burn > yourself on it: > http://tinyurl.com/3o229ho > > What you see strapped to it is a 12V fan from a dell desktop which I > ran at 5V, not 12V (a trick I learned from John DeGood). Very little > air had to move, it was noiseless, and it all cooled right down. You > don't need huge noisy fans in all cases. > > ron > ^ permalink raw reply [flat|nested] 16+ messages in thread
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* Re: [9fans] Plan 9 on VIA C7 [not found] ` <6F7509F3840C27B44BBE7F9F@192.168.1.2> @ 2011-07-09 4:13 ` ron minnich 2011-07-09 10:35 ` Bruce Ellis ` (2 more replies) 0 siblings, 3 replies; 16+ messages in thread From: ron minnich @ 2011-07-09 4:13 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs On Fri, Jul 8, 2011 at 5:26 PM, Eris Discordia <eris.discordia@gmail.com> wrote: > If given a choice I'd go with something that does not generate > the heat in the first place. agree. Get an ARM :=) ron ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-09 4:13 ` ron minnich @ 2011-07-09 10:35 ` Bruce Ellis 2011-07-09 20:55 ` Eris Discordia [not found] ` <D7303FDC7DBEC8EE3E08B624@192.168.1.2> 2 siblings, 0 replies; 16+ messages in thread From: Bruce Ellis @ 2011-07-09 10:35 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs SOC? 4 arms is more fun to try and boot than 1. brucee On Sat, Jul 9, 2011 at 2:13 PM, ron minnich <rminnich@gmail.com> wrote: > On Fri, Jul 8, 2011 at 5:26 PM, Eris Discordia <eris.discordia@gmail.com> wrote: >> If given a choice I'd go with something that does not generate >> the heat in the first place. > > agree. Get an ARM :=) > > ron > > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-09 4:13 ` ron minnich 2011-07-09 10:35 ` Bruce Ellis @ 2011-07-09 20:55 ` Eris Discordia [not found] ` <D7303FDC7DBEC8EE3E08B624@192.168.1.2> 2 siblings, 0 replies; 16+ messages in thread From: Eris Discordia @ 2011-07-09 20:55 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs Again, great point. An evaluation board built around S3C2440 I experimented with worked surprisingly well at 50+ degrees Celsius ambient temperature, no ventilation, running straight for over two months until somebody turned it off. And it wasn't even near industrial grade. Linux support for that SoC is quite mature, too. --On Friday, July 08, 2011 21:13 -0700 ron minnich <rminnich@gmail.com> wrote: > On Fri, Jul 8, 2011 at 5:26 PM, Eris Discordia <eris.discordia@gmail.com> > wrote: >> If given a choice I'd go with something that does not generate >> the heat in the first place. > > agree. Get an ARM :=) > > ron > ^ permalink raw reply [flat|nested] 16+ messages in thread
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* Re: [9fans] Plan 9 on VIA C7 [not found] ` <D7303FDC7DBEC8EE3E08B624@192.168.1.2> @ 2011-07-09 21:01 ` ron minnich [not found] ` <CAP6exY+JYUPZR9vvdNbYydp1b9qavDCrEHJt5hddCcaLeE==8A@mail.gmail.c> 1 sibling, 0 replies; 16+ messages in thread From: ron minnich @ 2011-07-09 21:01 UTC (permalink / raw) To: Fans of the OS Plan 9 from Bell Labs apropos temperature .... some of the embedded vendors test some of their boards by immersing them in boiling water, or so they tell me. ouch! ron ^ permalink raw reply [flat|nested] 16+ messages in thread
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* Re: [9fans] Plan 9 on VIA C7 [not found] ` <CAP6exY+JYUPZR9vvdNbYydp1b9qavDCrEHJt5hddCcaLeE==8A@mail.gmail.c> @ 2011-07-09 21:04 ` erik quanstrom 0 siblings, 0 replies; 16+ messages in thread From: erik quanstrom @ 2011-07-09 21:04 UTC (permalink / raw) To: 9fans On Sat Jul 9 17:03:15 EDT 2011, rminnich@gmail.com wrote: > apropos temperature .... some of the embedded vendors test some of > their boards by immersing them in boiling water, or so they tell me. > > ouch! no, sure doesn't sound good. i prefer mine deep fried. - erik ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [9fans] Plan 9 on VIA C7 2011-07-08 21:59 ` ron minnich 2011-07-09 0:26 ` Eris Discordia [not found] ` <6F7509F3840C27B44BBE7F9F@192.168.1.2> @ 2011-07-11 0:35 ` John DeGood 2 siblings, 0 replies; 16+ messages in thread From: John DeGood @ 2011-07-11 0:35 UTC (permalink / raw) To: 9fans To assign proper credit, I learned that trick from the 264x terminals manufactured by HP in the mid-to-late 70s. In those days most computer fans still used AC motors, so HP operated 240 VAC muffin fans at 120 VAC to exhaust the terminal heat in a virtually silent fashion. Modern (brushless DC motor) computer fans can be similarly tamed by reduced voltage, or by PWM. John On 7/8/2011 5:59 PM, ron minnich wrote: > What you see strapped to it is a 12V fan from a dell desktop which I > ran at 5V, not 12V (a trick I learned from John DeGood). Very little > air had to move, it was noiseless, and it all cooled right down. You > don't need huge noisy fans in all cases. ^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2011-07-11 0:35 UTC | newest] Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-07-06 18:34 [9fans] Plan 9 on VIA C7 Akshat Kumar 2011-07-06 19:06 ` Lyndon Nerenberg (VE6BBM/VE7TFX) 2011-07-07 5:21 ` cinap_lenrek 2011-07-07 7:56 ` Akshat Kumar 2011-07-07 8:00 ` cinap_lenrek 2011-07-07 8:16 ` Akshat Kumar [not found] ` <CABwSpPCnw2A80_gCxxN-6eH21Dg4oEF=Td6V4XuC1yEs3pTayg@mail.gmail.c> 2011-07-07 15:28 ` erik quanstrom 2011-07-08 20:02 ` Eris Discordia [not found] ` <98341AF97AF04C5D2915B463@192.168.1.2> 2011-07-08 21:59 ` ron minnich 2011-07-09 0:26 ` Eris Discordia [not found] ` <6F7509F3840C27B44BBE7F9F@192.168.1.2> 2011-07-09 4:13 ` ron minnich 2011-07-09 10:35 ` Bruce Ellis 2011-07-09 20:55 ` Eris Discordia [not found] ` <D7303FDC7DBEC8EE3E08B624@192.168.1.2> 2011-07-09 21:01 ` ron minnich [not found] ` <CAP6exY+JYUPZR9vvdNbYydp1b9qavDCrEHJt5hddCcaLeE==8A@mail.gmail.c> 2011-07-09 21:04 ` erik quanstrom 2011-07-11 0:35 ` John DeGood
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