[01:24] im seeing a write speed on a Raid0 that is 2 seagate 72k 3tb drives. Only getting about 40 MB/s [01:24] seem about right? [01:24] i would think i would get at least 70-100 MB/s [04:34] squish102: I don't know, I'm a software guy :-) [06:09] morning :) [06:09] good morning [06:10] oh, btw [06:10] I have kind of an interesting computer problem [06:10] not sure if I should be concerned [06:10] /how concerned haha [06:10] tell me if you've ever heard of this [06:11] I can hear the CPU on my macbook [06:11] like, when it's drawing power for computations I can tell and there's a slight sqeaky noise [06:11] noise is louder when connected to power [06:11] not the fans [06:12] can corroborate by doing operations on screen and hearing the CPU working at the same time [06:12] but basically sounds like old-style computers in the movies [06:12] dial up phone noises, squeaks and clicks at different speeds [06:14] laptop is six years old by now but I planned its service lifetime around using it for another 12 months [06:14] hoping motherboard power supply won't fry [06:18] morning calhax, night, everyone [06:18] night: are you sure it isn't a fan that is kicking up on high-intensity work loads? [06:19] paddatrapper: I'm hoping it's something to do with that but I wouldn't be able to explain it [06:19] CPU is solid state, so (unless something is arcing), there shouldn't be any noise... [06:19] fan stays steady at 2000 rpm but weird power situation might cause interference in either those or the speakers [06:19] correct [06:20] thats really weird! :) [06:20] it's also really cool! [06:20] I can hear when it's doing things in the background, and at what frequency [06:20] just have to expect impending doom [06:21] I've heard of people who get their CPUs to modulate FM frequencies (or someother EM frequency), but actual noise is a first [06:21] something's gotta be arcing or oscillating in the circuit in a way it shouldn't [06:21] lol [06:21] certainly sounds like it [06:21] yeah it's PSU somehow [06:21] could be a unhappy capacitor night [06:21] since my computer doesn't have any other independent components I can say the sound is representative of the CPU [06:22] calhax: I've taken some electrical classes but don't know what capacitors are like in failure [06:22] so that's a possibility? [06:22] hm [06:22] I've blown up a few transistors and assorted chips but never a capacitor haha [06:24] night: generally that don't make much sound, maybe some popping if there are arcs. visually the tops tend to blacken or bulge [06:25] okay, paddatrapper [06:25] good info :) [06:26] only way I can think of capacitors failing is current overload [06:26] night, it's no unusual for a electronic circuit to act out of character when a cap is damaged, caps smooth voltage and frequency, since you are hearing a frequency it could be a faulty cap on you MB that is not filtering the sound out, just a thought, it could be a hundred different things LOL [06:27] right [06:27] that makes a lot of sense [06:28] night, how old is the machine? [06:28] calhax, if that's the case, yeah it wouldn't be an immediate problem [06:28] might just expose downstream components to higher wear rate [06:28] calhax: good question, it's getting old [06:28] 6 years [06:28] no problems in those 6 years though! [06:30] night, could be caps are unpredictable, however have you tried unplugging all of your peripherals and checking if it still does the same thing, if a peripheral draws more than 500mA on a USB port it is technically putting that USB under strain [06:31] calhax: noise occurs with all ports disconnected [06:31] you bring up a good point, though, which is that the source might be able to be isolated by seeing if peripherals can prompt the noise too [06:32] charging port --> PSU --> peripheral bus | internal components [06:32] night, have you tried taking the battery out and just run it on AC? [06:32] haha [06:32] lol [06:32] do you think apple would like that? [06:32] I gotta try this [06:32] I feel like macOS will say something about that [06:34] I have just remembered a incident in the lab a few weeks ago [06:34] was running a microcontroller powered via laptop's USB [06:34] if mac has dmesg, USB over-current should be reported there [06:35] paddatrapper: yes, this over-current was brought up as a notification [06:35] some kind of internal breaker tripped and shut off the peripheral [06:35] was kind of cool, actually, hadn't seen that before [06:36] it is pretty cool, have had that happen occasionally when I've been working on microcontroller stuff, but luckily no damage [06:38] paddatrapper: curious if that protection is all virtual [06:38] if there are physical breaker components those would wear out over time [06:39] night: It is certainly controlled virtually, but I suspect the bus is never actually disconnected (because the other port on the same bus worked for me). The OS probably just doesn't allocate power to it [06:42] paddatrapper, could be reading current over the port and shutting it down when its out of range [06:43] calhax: I'm pretty sure that is what happens, but I don't think there is a physical breaker on the bus [06:44] thank you all for the input, I hadn't considered capacitor problems and will do a bit of testing [16:03] o/ === fossilizer is now known as Guest51679 === pavlushka is now known as Guest4608 [16:38] superfly: hi === pavlushka_ is now known as pavlushka [17:54] evening all [18:52] hi guys, have a good night. i go sleep more [19:04] good evening [19:47] hey paddatrapper, how's things? [19:47] inetpro: o/ [20:21] superfly: alright thanks. A little swamped, but not much more than usual. You? [20:46] paddatrapper: going well, thanks. Getting settled in here. [20:47] paddatrapper: my boss and my team lead are apparently really happy with my progress so far [21:02] superfly: awesome :) [22:20] paddatrapper: I don't know if you remember that box of books I shipped over? [22:21] paddatrapper: well, we gave up, thinking it was lost. I even bought myself a new study Bible. [22:21] paddatrapper: it rocked up at mrs_fly's mom's house today [22:21] finally [22:33] superfly: that certainly took a while! [22:34] That's pretty much as bad as ebay shipments when sent to here... [22:36] I've had an ebay shipment in 6 weeks [22:36] this was more like 6 months [22:44] Painful [23:04] Tomorrow I'm going to an Ubuntu installfest in Phoenix