peterfleeman Posted June 21, 2018 Share Posted June 21, 2018 Schmitzi has the European market on PEBs cornered! I see a dozen of them in those pictures. The most PEBs i've had at one time is 12. My wife is very glad that i'm down to 2 now. (Although I have my eye on one on eBay right now...) 8 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted June 21, 2018 Share Posted June 21, 2018 The last picture shows a wall from IKEA, right? I've got the same one (5x5). yes, they are great. I have them in all shapes 1 Quote Link to comment Share on other sites More sharing options...
iKarith Posted June 21, 2018 Share Posted June 21, 2018 Schmitzi, you have too many PEBs. You need to send a few of them to other people. 2 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted June 24, 2018 Share Posted June 24, 2018 I got some rf modulators in the mail today Sent from my LG-H872 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
ti99iuc Posted June 25, 2018 Share Posted June 25, 2018 (edited) - on 03 May 2018 - 09:14 AM, said: I think we're accepting it. Congrats! You worked really hard. Here is the new TI-99/4. This is an award from Tursi for the Highscore contest in april/may 2018 I am very happy and want to say - Thank you - for this lovely computer's piece. HERE the complete gallery i published. Really thanks Tursi. Edited June 25, 2018 by ti99iuc 10 Quote Link to comment Share on other sites More sharing options...
+chue Posted June 25, 2018 Share Posted June 25, 2018 Very nice Ciro! Did you fix the RAM in it? I thought that I read somewhere that the RAM was bad. Quote Link to comment Share on other sites More sharing options...
ti99iuc Posted June 25, 2018 Share Posted June 25, 2018 Thanks Chue, no it seems to works perfect. probably already been fixed Quote Link to comment Share on other sites More sharing options...
Tursi Posted June 25, 2018 Share Posted June 25, 2018 Very nice Ciro! Did you fix the RAM in it? I thought that I read somewhere that the RAM was bad. Matt Hagerty replaced the RAM for me before I shipped it. 1 Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted June 25, 2018 Share Posted June 25, 2018 This photo has me wondering... is it possible to make a TI-99/4A RAID ARRAY? (I know, I know, who would want or need to do that)... well this is a hobby it does not have to be practical! Imagine 4 TI's making a tower, with a counter top across each tower. Of course each P-Box better have the whisper fan modification, or the user would need aircraft grade ear protection for those eight fans! Hey, if you have that many P-Boxes, might as well use 'em! 1 Quote Link to comment Share on other sites More sharing options...
+chue Posted June 25, 2018 Share Posted June 25, 2018 Matt Hagerty replaced the RAM for me before I shipped it. That explains it! Quote Link to comment Share on other sites More sharing options...
Tursi Posted June 26, 2018 Share Posted June 26, 2018 This photo has me wondering... is it possible to make a TI-99/4A RAID ARRAY? (I know, I know, who would want or need to do that)... well this is a hobby it does not have to be practical! Imagine 4 TI's making a tower, with a counter top across each tower. Of course each P-Box better have the whisper fan modification, or the user would need aircraft grade ear protection for those eight fans! Musing because I'm putting off sleep... all things are technically possible. Just a question of effort! I'm not sure that a RAID based on TI Disk Controllers, at least, would have very much advantage. If you assumed simple striping (where a file is written across all disks at once), you sadly would not be able to recognize many gains with a stock-ish system (such as just re-writing the DSR). This is because the TI CPU is responsible both for seeking the head and reading out sectors in software. So you couldn't really parallelize it - during sector transfer the CPU is pretty close to max'd out (I did some experiments to see how much I could get away with at the same time, and the answer was "almost nothing", it came down to just a few instructions per loop.) So you'd have to seek one drive, read one sector, seek the next drive, read one sector, etc. Odds are that the extra time needed to seek multiple drives would actually make it slower than a single drive. (But, you could gain the increased storage capacity.) Of course, you could add a microcontroller to each disk controller to manage the seeking and sector reads for you, and thus have the data ready to go when the CPU got to that drive. That would probably offer some advantage in performance. But it's pretty blue sky. 2 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted June 27, 2018 Share Posted June 27, 2018 This photo has me wondering... is it possible to make a TI-99/4A RAID ARRAY? (I know, I know, who would want or need to do that)... well this is a hobby it does not have to be practical! Imagine 4 TI's making a tower, with a counter top across each tower. Of course each P-Box better have the whisper fan modification, or the user would need aircraft grade ear protection for those eight fans! Hey, if you have that many P-Boxes, might as well use 'em! Musing because I'm putting off sleep... all things are technically possible. Just a question of effort! I'm not sure that a RAID based on TI Disk Controllers, at least, would have very much advantage. If you assumed simple striping (where a file is written across all disks at once), you sadly would not be able to recognize many gains with a stock-ish system (such as just re-writing the DSR). This is because the TI CPU is responsible both for seeking the head and reading out sectors in software. So you couldn't really parallelize it - during sector transfer the CPU is pretty close to max'd out (I did some experiments to see how much I could get away with at the same time, and the answer was "almost nothing", it came down to just a few instructions per loop.) So you'd have to seek one drive, read one sector, seek the next drive, read one sector, etc. Odds are that the extra time needed to seek multiple drives would actually make it slower than a single drive. (But, you could gain the increased storage capacity.) Of course, you could add a microcontroller to each disk controller to manage the seeking and sector reads for you, and thus have the data ready to go when the CPU got to that drive. That would probably offer some advantage in performance. But it's pretty blue sky. . . oh yes, a "Raid Array" over the disk drives would be hard to do... and there is no real practical gain, as you say, isn´t it ? But we talked about "chaining PEBs via FlexInterface-Cards" before, IIRC..... So you could get some more PEB-slots for more cards, and some more space for mounting more disk drives Wouldn´t it be nice, if you "really" want to switch OFF your (i.e.) RAMdisk, your SCSI-subsystem, or your PCode ? You just would have to power OFF one of your PEBs ? Does that work ? But this is restricted by the CRU addresses, right ? And by the interoperability of cards... So what could be the maximum of cards / CRU addresses / "subsystems" by chaining PEBs ? I think of the total maximum that makes any sense. And maybe former restrictions can be broken yes, the fan(s), of course xXx 1 Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted June 27, 2018 Share Posted June 27, 2018 Working on a video today, got it assembled and took a couple of still shots... "CLOSEUP" VIEW "FULL" VIEW 6 Quote Link to comment Share on other sites More sharing options...
Tursi Posted June 27, 2018 Share Posted June 27, 2018 So what could be the maximum of cards / CRU addresses / "subsystems" by chaining PEBs ? For new hardware, you could invent new schemes, but for traditional cards each card needs to grab a dedicated CRU address at >1x00.. technically that imposes a limit of 16 cards maximum (0-F). That addressing is a convention for the system, not so much a physical or electrical restriction. There's actually a lot of unused CRU space. 1 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted June 28, 2018 Share Posted June 28, 2018 Full.. Sent from my LG-H872 using Tapatalk 8 Quote Link to comment Share on other sites More sharing options...
digdugnate Posted June 28, 2018 Share Posted June 28, 2018 Full.. Sent from my LG-H872 using Tapatalk is that a TIPi PEB card i spy? 3 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted June 28, 2018 Share Posted June 28, 2018 Yep! is that a TIPi PEB card i spy? Sent from my LG-H872 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
pixelpedant Posted July 29, 2018 Share Posted July 29, 2018 I've recently made some additions/revisions to my setup. Added some wall-mounted clear acrylic shelves and LED lighting (since my rack shelves are pretty tightly packed, they're pretty dark and cavernous without). Obviously, there's a whole lot else going on there, but the TI 99/4A is at the centre of it all (and is the only device directly connected to the PVM, rather than run through an elaborate RGB signal detection/selection/amplification solution). 11 Quote Link to comment Share on other sites More sharing options...
digdugnate Posted July 29, 2018 Share Posted July 29, 2018 i dig your server/network racks you are using as part of your setup- those bad boys wont be going anywhere Quote Link to comment Share on other sites More sharing options...
pixelpedant Posted July 31, 2018 Share Posted July 31, 2018 i dig your server/network racks you are using as part of your setup- those bad boys wont be going anywhere Yeah, when you live in a downtown core condo, you work with vertical space. So a 42u rack is the order of the day. But the 16u rack on my desk is also very helpful, in its allowing me to position my PVM directly over top of my TI 99/4A, while still giving me space to work with it. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted July 31, 2018 Share Posted July 31, 2018 Nothing beats a great rack. 7 Quote Link to comment Share on other sites More sharing options...
Admiral Irony Posted August 3, 2018 Share Posted August 3, 2018 My wife and I have been doing some summertime rearranging around the house, and I finally managed to carve out a spot for the TI: 6 Quote Link to comment Share on other sites More sharing options...
digdugnate Posted August 4, 2018 Share Posted August 4, 2018 Nothing beats a great rack. Allll riiiiggggght! 1 Quote Link to comment Share on other sites More sharing options...
digdugnate Posted August 5, 2018 Share Posted August 5, 2018 A little messy, and not great light- but you can see my corner well enough Quote Link to comment Share on other sites More sharing options...
digdugnate Posted August 5, 2018 Share Posted August 5, 2018 My wife and I have been doing some summertime rearranging around the house, and I finally managed to carve out a spot for the TI: i dig your Crow and Tom Servo pops. Quote Link to comment Share on other sites More sharing options...
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