Ask Ubuntu General Room

That moment when you inadvertently "nano some-large-file" and freeze everything.

@NathanOsman nice

32 bit chipsets are horrible! askubuntu.com/q/803326/367990

I also have one in my desktop. Such a pain.

probably OP's fault for not checking bitness of chipset

@edwinksl bittiness

12:10 AM

y u misspell

I'm following the template of swappiness

Any memory experts around?

I'm thinking of adding this: corsair.com/en/vengeance-8gb-ddr3-memory-kit-cmz8gx3m1a1600c10

nathan@nathan-desktop:~$ sudo dmidecode -t 17
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x002D, DMI type 17, 34 bytes
Memory Device
        Array Handle: 0x002B
        Error Information Handle: Not Provided
        Total Width: Unknown
        Data Width: 64 bits
        Size: No Module Installed
        Form Factor: Unknown
        Set: None
        Locator: DIMM_A1
        Bank Locator: A1_BANK0
        Type: Unknown
        Type Detail: None
        Speed: Unknown

^--- dmidecode output

@NathanOsman does it match brand and clock speed of the current RAM?

No, the stick that is in there now is some generic brand.

It looks like the clock speeds match though... if I'm not mistaken.

Speed: 1333 MHz
SPD Speed: 1333MHz

then you should be fine

12:14 AM

Brand should not matter, only clock frequency, timings and type must be compatible.

They are both DDR3, so type matches.

good

I'm not sure what the clock speed on the Corsair one is though.

Speed Rating PC3-12800 (1600MHz)

The tech specs say 1333

that's probably the OC speec

@ThomasWard When will it be then?

12:20 AM

28th

@NathanOsman But the latency?

@Serg What do you mean by "your bellowed desktop" o.O? askubuntu.com/a/608287/367990

@AndroidDev How do I find that?

@NathanOsman Uhhhhhhh.... have no idea.

@NathanOsman ping your RAM

12:22 AM

@Zacharee1 :)

nathan@nathan-desktop:~$ ping /dev/shm
ping: unknown host /dev/shm

@Zacharee1 nothing :D

@NathanOsman Found it.

darn

:p

10-10-10-27 latency

That's for the Corsair one?

12:23 AM

@NathanOsman Correct.

what does that mean?

WHAT DO THE NUMBERS MEAN

@NathanOsman

Memory timings

Memory timings or RAM timings measure the performance of DRAM memory using four parameters: CL, TRCD, TRP, and TRAS in units of clock cycles; they are commonly written as four numbers separated with dashes, e.g. 7-8-8-24. The fourth (tRAS) is often omitted, and a fifth, the Command rate, sometimes added (normally 2T or 1T - also 2N, 1N). These parameters specify the latencies (time delays) that affect speed of random access memory. Lower numbers usually imply faster performance. What determines absolute system performance is actual latency time, usually measured in nanoseconds. When translating...

@Zacharee1 They are the CAS latency.

@ByteCommander ohh

12:25 AM

---=== Memory Characteristics ===---
Fine time base                                  1.000 ps
Medium time base                                0.125 ns
Maximum module speed                            1333 MHz (PC3-10600)
Size                                            8192 MB
Banks x Rows x Columns x Bits                   8 x 16 x 10 x 64
Ranks                                           2
SDRAM Device Width                              8 bits
Bus Width Extension                             0 bits

Got that from running decode-dimms.

@NathanOsman But that only gave the command rate.

Which is not very helpful

---=== Timing Parameters ===---
Minimum Write Recovery time (tWR)               15.000 ns
Minimum Row Active to Row Active Delay (tRRD)   6.000 ns
Minimum Active to Auto-Refresh Delay (tRC)      49.125 ns
Minimum Recovery Delay (tRFC)                   260.000 ns
Minimum Write to Read CMD Delay (tWTR)          7.500 ns
Minimum Read to Pre-charge CMD Delay (tRTP)     7.500 ns
Minimum Four Activate Window Delay (tFAW)       30.000 ns

Is that what you're looking for?

not the same I think

Nope.

:(

12:26 AM

It needs to be x-x-x-xx

For example, DDR3-1600 is usually 9-9-9-24.

9-9-9-24 sounds close enough to me :p

Isn't that what "tCL-tRCD-tRP-tRAS 9-9-9-24" is?

It's in the first paste.

@NathanOsman OOOOOH.

Missed that!

lol

But wait a second.

Corsair rates it for 10-10-10-27...

12:28 AM

Is that bad?

@NathanOsman No.

yes, your computer will blow up

Oh whew.

@NathanOsman That means it's performing better than spec!

@Zacharee1 Don't tell the insurance company :D

12:28 AM

and then a Zedd concert will appear in your house

@AndroidDev So it will work with my other stick if I add it then?

The mem controller should automatically adjust timings to comfort the slower brick, I think.

how many slots do you have?

Only two unfortunately.

Q: Ubuntu theme gone wrong (Macbuntu 16.04)

@NathanOsman Although, maybe not necessarily better, since you're running it at 1333, which is a step down from 1600. So maybe it's right on spec then.

Ubuntu Questions on U&L

12:29 AM

0

So I recently downloaded ubuntu to do a dual boot with windows 8.1. Everything went perfectly fine, smooth as butter. The I went to set up ubuntu to my personal liking, which happens to be the OSX style UI. http://www.noobslab.com/2016/04/macbuntu-1604-transformation-pack-for.htmlI used this, wor...

@NathanOsman What's the latency of your other stick?

@NathanOsman aw. I was going to suggest that you just put the other stick in the non-matching slot or something

@AndroidDev I'm not sure. What am I looking for?

wait

ignore me

@AndroidDev BTW, I really appreciate your help with this. I am a software engineer, but I know so little about hardware it's embarrassing.

12:31 AM

@NathanOsman Wait a second. I came it late to this conversation. Which stick do you have in now?

I'm turning into @ThomasWard

@AndroidDev generic

@AndroidDev I have a generic brand 8 GB stick in there now.

Hmm... It's 2:30 and my battery is getting red. I think I should try to get some sleep now.

Anything I've pasted from the terminal is about that one.

Good night folks.

12:31 AM

I'm thinking of adding the Corsair stick,

@NathanOsman Oh.

@ByteCommander Goodnight.

Sorry for the confusion :)

@AndroidDev BTW, I really appreciate your help with this. I am a software engineer, but I know so little about hardware it is embarrassing.

@NathanOsman Hmm. Well, just FYI, I'm running 16GB of DDR3-1600 on a motherboard that officially only supports DDR3-1066 :)

@NathanOsman No problem!

So I should be okay to use both of those sticks together?

@AndroidDev whoa your avatar changed

12:33 AM

@NathanOsman As long as the voltage is the same. Run MemTest from a live CD for 1 pass to be sure.

If you get errors, then you know there's a problem :)

@NathanOsman - I have to go now, but I'll be back in just a bit :)

No problem.

I'm glad this guy's actually taking initiative and learning, but he needs to learn what "formatting" means askubuntu.com/questions/803339/…

what a story... askubuntu.com/questions/803339/…

oh same question as zachareejuan's

hue

12:50 AM

^edit le dank post to make it more readable pleaseeeee

im not touching it

unless it's literally

hello chat

how's nz

nice

i finished early

@Zacharee1 ubunto askubuntu.com/a/803340/15003

12:55 AM

Already have it

sage2010

I want this tablet so badly!

ach

?

what tablet?

which one

@edwinksl jinx

1:06 AM

Tab S2 Snapdragon version (SM-T813)

@ƎpᴉʇʎXD not even close

:P

i have a tab lingering arround here

askubuntu.com/questions/247973/… ubunto > ubuntu

quote of the day by zach : "answers are for answers" :D

XD

@edwinksl some people don't seem to understand that

indeed

1:16 AM

floating point exeption

@Zacharee1 ubunuo askubuntu.com/q/803346/15003

that's new

amazon.ca/Leviton-102-EP-Connector-Straight-Residential/dp/…

How is this $15?

O_o

it is unclear how that typo even happened

1:21 AM

@NathanOsman what is that

it has a cool name

It's a NEMA 1-15P receptacle.

ok...

But I can't find a decent cheap one. I mean it's basically plastic and metal.

I can get ones at the local hardware store for about $3-4.

Why are they so expensive online?

shipping?

1:24 AM

LOL.

platt.com/platt-electric-supply/…

$3.68.

heh