libera/#maemo/ Sunday, 2018-07-15

brolin_empeyHurrian: https://forums.lenovo.com/t5/ThinkCentre-A-E-M-S-Series/M57-6072-upgrade-Quad-E9400-16-GB-SSD-Gt-610-graphics-memory/td-p/367141608:30
brolin_empeyHere is a user of a Lenovo LGA775 computer with Q35 who reports success with 4× 4-GiB DDR2 DIMMs = 16 GiB main memory.  They are using Kingston DIMMs, KVR800D2N6K2/8G, but this model (kit of 2× 4-GiB DIMMs) on eBay costs even more than the Hynix kit I already ordered.08:30
brolin_empeyWhy does Intel say that the maximum for Q35 is only 8 GiB if the actual maximum is at least 16 GiB?  Because 2 GiB was the largest capacity of DDR2 DIMM available at the time, which meant the maximum in practice at the time was only 4× 2-GiB DIMMs = 8 GiB?08:33
brolin_empeyMy computer with Q35 and 8 GiB of main memory already has at least 12 GiB of RAM in total because the video card has 4 GiB.08:34
brolin_empeyI think this type of thing has been happening for decades, like with the Apple Macintosh SE/30 from 1989 that unofficially supports up to 128 MiB of main memory using 8× 16-MiB 30-pin SIMMs that were not available when the computer was released.08:39
Hurrianbrolin_empey: yep, IIRC Intel sets the max memory as the largest they've tested on the platform at time of release13:28
Hurriane.g. the LGA1366 Core i7s had their max mem advertised on ARK as 24GB (6x4GB DDR3 DIMMs), but ever since the 8GB DDR3 DIMMs came out turns out those work just fine on 48GB (6x8GB DDR3)13:30
brolin_empeyHurrian: LGA1366 is the socket type for the original Core i7 (960) from 2008 November?  I cannot remember all of the CPU socket types after around LGA775, partly because I still do not have a newer than LGA775 computer.13:58
Hurrianyep, exactly14:04
brolin_empeyHurrian: OK, that makes sense but I think places that specify these maximums should explain that these maximums are only what was tested at the time of release and that the actual maximum may increase as larger capacity memory modules become available.  I seriously thought that I had to replace my Q35 motherboard to use more than 8 GiB of main memory until our discussion beginning on Friday night for me (in Metro Vancouver, Canada).14:12
Hurrianyeah, IIRC when it comes to hardware manufacturers, the official "maximums" they publish are only configurations they can validate and not the max theoretical14:14
brolin_empeyHurrian: What is the actual maximum for Q45, since that is what my computer at work (Dell OptiPlex 960 minitower with only DDR2 sockets even though the Q45 supports both DDR2 and DDR3) uses?14:16
Hurrianthe Q45 board I had only had 2x DDR2 slots, thanks dell for cheaping out :/14:16
brolin_empeyHurrian: Is there enough space on the board to have at least four DIMM sockets?  Maybe you had a SFF model with limited board space?14:18
Hurrianno, it was a mATX board, definitely had enough space but they cheaped out on connectors they wouldn't use, probably since DDR3 was quite expensive at the time14:19
brolin_empeyDoes a >4-GiB DDR2 DIMM even exist?14:20
HurrianOnly in FBDIMM and wacky quad rank DIMMs, which usually only work on server motherboards.14:24
Hurrian8GB FBDIMM and quad rank DDR2 does definitely exist, but power consumption per DIMM is through the roof14:24
brolin_empeyYes, I queried DuckDuckGo and found 8-GiB DDR2 FBDIMMs marketed for the Apple Mac Pro from 2008.14:28
brolin_empeyHurrian: Sigh.  I wanted to ask you about a message I posted in reply to a user/customer discussion on Amazon about the Samsung NP700Z3A-S06US model of notebook computer from 2012 that my father still uses but apparently Amazon has silently removed this product from their Web site, at least from both amazon.com and amazon.ca . (fail)14:46
HurrianAmazon removes products all the time though, especially when it's been years since it's been last stocked14:48
brolin_empeyLong story short, it sounds like this model of computer can unofficially work with at least 12 GiB of main memory (4 GiB base/fixed + 8 GiB module) even though the official maximum is only 8 GiB (4 GiB base/fixed + 4 GiB module).  I wanted to ask you which model of SODIMM we (my father or me) should buy to have at least 12 GiB of main memory.14:52
Hurriannot entirely sure, even though the memory controller in those models can definitely support 8GB per DIMM, I don't know the voltage of the onboard memory14:56
Hurriancould be 1.5V or 1.35V, but you can totally run 4+8GB RAM on it being a 2nd gen core series CPU14:57
brolin_empeyIf we use a DDR3L SODIMM, do we still need to know the voltage of the fixed memory?  As far as I know, DDR3L also works as DDR3 but the reverse is not true.15:03
brolin_empeyIs there a way I can find the voltage of the fixed memory from Windows 7 or GNU+Linux?  I have physical (video console) + SSH access to the computer.15:06
brolin_empeylshw?15:06
HurrianDDR3L can work as DDR3 only if all the modules in the system match up in voltage15:07
Hurrianhad some bad experiences where friends added DDR3L memory to a 1.5V DDR3 system, causing random corruption after the memory controller just used 1.35V on all modules15:07
brolin_empeyHurrian: Interesting.  How do you know so much about computer hardware?  Are you a hardware engineer?15:09
Hurrianno, I just go through a lot of hardware, it's a game I try to play15:09
HurrianI flip my old hardware on a local craigslist equivalent to buy second hand slightly less-old hardware, typically about 3 years old15:10
Hurrianyou also typically find lots more "interesting" stuff through the secondary market, like used enterprise hardware15:10
buZzbrolin_empey: dmidecode gets you pretty far15:11
buZzoh sadly , doesnt tell you mem voltages15:12
buZzonly the cpu's voltage15:13
buZz(at least on my deskxeon)15:13
brolin_empeyWTF?  Apparently my Galaxy Note 3 can no longer charge from its USB connector but I know the USB connector still works because I can still access the file system on my USB SSD connected with a USB OTG adapter.15:36
brolin_empeyDo I have another broken battery?15:37
buZzor just the +5V pin isnt making connection15:38
buZztried cleaning it?15:38
buZzoh, that +5 would be powering the SSD i guess15:38
brolin_empeyIt seems like the battery is broken because the status bar shows the lightning bolt on the battery meter to indicate charging but the remaining battery percentage only decreases, never increases.15:40
brolin_empeyWhy do I have so many battery problems with my Galaxy Note 3? :-/  The current battery may be the last of the spare batteries I have.  I have the spare batteries at home but I am currently at my office.15:42
brolin_empeyI can try charging from my car but I guess the result will be the same.15:42
brolin_empeyHeh, apparently it can still charge from my car, using the Gomadic microUSB charger I originally bought to charge my N900.15:55
bencohbrolin_empey: as buZz said, 16:38 < buZz> oh, that +5 would be powering the SSD i guess15:57
bencohyour usb port might not give enough power for both ssd and phone15:58
brolin_empeybencoh: My USB port on what?16:00
bencohthe one that acts as a powersource16:01
brolin_empeybencoh: Apparently my Galaxy Note 3 cannot charge from my desktop computer running Windows 8 nor from any of the AC to USB power supplies/chargers I tried, including a Samsung adaptive fast charger.  I am not trying to charge/power anything else from the same AC to USB charger at the same time.  I used to be able to charge from some of these same sources.16:39
brolin_empeyHurrian: I used System Information Viewer (a third-party application, not something included with Windows) to get the DIMM information.  Reportedly both of the DIMMs are this model, which supports both 1.35 and 1.5 volts according to this page:16:43
brolin_empeyhttps://www.samsung.com/semiconductor/dram/module/M471B5273CH0-CH9/16:43
brolin_empeyWhat is the largest capacity of DDR3 or DDR3L SODIMM available?  At least 8 GiB but do 16 GiB and more exist?16:46
brolin_empeyYes, apparently a 16-GiB DDR3L SODIMM exists: https://www.amazon.ca/Crucial-Single-PC3L-12800-Unbuffered-204-Pin/dp/B0123BRIDK17:23
brolin_empeyHurrian: Will this SODIMM work to have 20-GiB of main memory?17:23
brolin_empeyApparently my Galaxy Note 3 can charge from my desktop computer after I disconnected a Galaxy Nexus from my external but self-powered (is powered by AC adapter, not by my desktop computer) USB hub.17:24
buZzgalaxy note has no SODIMM slot17:24
buZz:)17:24
buZzbrolin_empey: so your USB hub doesnt support backpowering17:24
buZzoh wait, different device17:24
brolin_empeybuZz: The smartphone charging discussion is separate from the RAM discussion. :-P17:26
sicelois it just me, or is gitlab.com home page title somewhat strange - "The _only_ *single* product for the complete DevOps lifecycle"19:44
siceloonly single seems odd to me19:45
sparresicelo: I think they mean the only product that covers the complete dev-ops life-cycle.19:57
siceloyes, i get what they mean. just seems an odd way to write. *shrug20:02

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