Root Access

12:00 AM

i tried booting without the atx12v2, which is the 4-pin by the cpu, and i tried booting with only the 24-pin, but no dice

Michael Frank

There's also an 8pin atx12v someone as well, right?

dev_willis

yes, i've tried with and without it connected

Ramhound

You are positive the motherboard is fully functional?

dev_willis

it's been working fine since nov

Ramhound

With this same power supply or a different power supply?

dev_willis

12:03 AM

recently the power went out so i shut down the pc and turned off the back-ups. when it came back on i powered everything back on but it wouldn't boot. i figured it was probably the psu so i bought a new one with 200 additional watts and when i went to install i noticed the pc was booting again. don't know what changed. i decided to go ahead and put the new psu in and now neither psu will work

Michael Frank

Well, being functional since November doesn't necessarily mean it works now. Can you test either power supply on another board?

dev_willis

not easily. i'll have to see if i can scrounge another board

Ramhound

(The problem with submitting multiple questions surrounding the same topic is you confuse people who read them all), well you thought it was the PSU, but outside of thinking it was the PSU have you used a Power Supply Tester to verify that original power supply was not operational?

Which is something that was suggested to you before.

dev_willis

i don't have one

Ramhound

You need one

dev_willis

12:06 AM

i do have a multimeter

Michael Frank

Did you try the paper clip trick?

dev_willis

i didn't. i was kinda afraid to lol

do the mobo lights lighting up not tell the same story as the paper clip trick? it just determines whether the psu is passing power, right?

my understanding of the paper clip trick is that you can plug up a fan and see if it powers it. is that different from being able to power the LEDs?

Ramhound

A verbal description of the lights are not helpful

dev_willis

i could take a video but that doesn't seem like it would help either

Ramhound

I still suspect the motherboard, the fact two sperate PSU, result in no attempt to POST indicates the motherboard is dead.

dev_willis

12:11 AM

the thing that gives me pause tho is the different behavior of the lights between the two PSUs. makes me wonder if i don't have something hooked up correctly but idk what

really wish asrock would make that information available

Ramhound

You provide the board power, plug in the CPU fan, it isn’t difficult (you can’t plug the wrong cable in the wrong location) and you did it right before

Asrock provides a manual for your board. Looked up numerous ASRock boards in the past

dev_willis

yeah, i've got the manual. i'm sure it's all hooked up right. i wonder if maybe a connector is bad? i guess it's probably time to RMA the board, yeah?

dev_willis

12:36 AM

i'm attempting to get support from asrock

thank you all for your help

bwDraco

3:37 AM

wccftech.com/…

As I understand it, AMD redid the memory and cache subsystems to significantly reduce latency, allowing the processor to perform noticeably better in memory-intensive tasks.

allquixotic

@Bob @FMLCat aviation-safety.net/database/record.php?id=20180417-0

quite unusual for such a thing to happen, and the window being broken suggests the engine's explosion wasn't 100% contained within the cowling

bwDraco

The embargo on the Ryzen 2000 series desktop chips ends in just two days.

Not major improvements, but by all accounts, the new processors represent a meaningful step forward over the previous generation.

allquixotic

@bwDraco 10% is more than Intel can say for many of their recent chip shots

bwDraco

Yup. Intel's gotten stuck at this point. A completely new architecture is going to have more room for optimization, and AMD has indeed addressed the most serious weaknesses with OG Zen.

allquixotic

I wonder if they bothered to fix Spectre in hardware

bwDraco

3:51 AM

Zen+ is more than just clock frequency improvements.

allquixotic

as well as those other issues that Zen apparently has

bwDraco

@allquixotic Unlikely. AMD says they're going to address it in Zen 2.

allquixotic

the "character assassination" type flaws like Ryzenfall

bwDraco

@allquixotic This can be fixed in AGESA updates for the most part.

Bob

@allquixotic coffee/kaby/sky are all the sme uarch

bwDraco

3:52 AM

Besides, they're not truly serious flaws because an attacker would need to already have admin/root access to the machine to exploit them.

Bob

new uarch is due this year iirc

cannon? ice? idk

@bwDraco as everything, depends on context

when you're looking at rented servers (dedicated), one person will have root and that's perfectly fine. if they can plant firmware-level malware for the next customer...

also raises the same question for the second-hand market

bwDraco

Yeah. Your threat model is going to be a big factor.

notebookcheck.net/…

On second thought... it seems AMD might have an IPC edge over Intel. This would be a remarkable achievement for them.

allquixotic

wtf

I haven't heard of AMD having an IPC advantage since, like, since I was in high school

bwDraco

12nm is a minor die shrink allowing for slight clock frequency improvements, but that alone certainly does not explain improvements of this magnitude.

Not in every workload, but everywhere I'm looking, they seem to have gained 5-10% IPC over the previous generation, enough to bridge the gap with Coffee Lake when taken together with the frequency improvements.

For the Ryzen 7 2700X, 4.3 GHz is a single-threaded peak clock frequency. Bear in mind that the i7-8700K can boost to 4.3 GHz on all cores, with peak single-core clocks of up to 4.7 GHz.

Bob

@bwDraco link?

bwDraco

4:05 AM

Also, consider that the review by El Chapuzas Informatico referenced by NotebookCheck has the i7-8700K running with a memory frequency advantage (DDR4-3600).

7 mins ago, by bwDraco

https://www.notebookcheck.net/AMD-Ryzen-7-2700X-outpaces-the-Intel-Core-i7-8700K‌-in-more-ways-than-one-in-first-benchmarks.296674.0.html

Bob

@bwDraco that has no numbers

bwDraco

See the image gallery at the bottom of the article.

Michael Frank

ha.. last ditch effort! I unsubscribed from email updates to Pinterest, they say it'll take up to 48 hours to process. 2 minutes later, I receive a new email from Pinterest.

Bob

@bwDraco ah. I stopped at the big photo

hm. single core perf does look nice

allquixotic

4:32 AM

@Bob did you see my earlier post about a Southwest Airlines emergency landing with 1 fatality and an engine explosion (mostly contained but blew out a window)?

B737-700 built in 2000, CFM56 engine - nice and modern stuff, typically a very safe, conscientious carrier that cares about maintenance

very similar to an incident with the same airline and aircraft type in 2016

bwDraco

How do pilots stay calm when things like this happen?

I wish I was this calm, no matter what happens.

allquixotic

@bwDraco well, here's the thing: their plane wasn't crashing. They had an upset, where something went wrong, but the situation was absolutely recoverable. When they'd apply control inputs (slow down, speed up, change pitch, change roll) the aircraft would respond. At that point, as a pilot, there's no need for panic; you can fly the plane, land, all is well.

I've heard very sad and unfortunate ATC recordings and CVR recordings of flights that were uncontrollable, and these professional trained pilots were freaking the hell out

so if the aircraft is not able to be controlled, it's human nature to basically scream "WE'RE ALL GONNA DIE!!!" - and they do

but as long as you can fly the thing, you focus on that, and everyone lives

bwDraco

@allquixotic lol

But what I hear in most ATC recordings... is awe-inspiring.

From what I've read, you have to be the stoic type to even get through flight school.

Sadly, it's not really in my blood...

allquixotic

well, yeah - you can't lose your cool at the slightest sign that something might be going wrong

you have to diagnose what's wrong and use whatever limited control you have left over the aircraft to try to get it down safely

the only true freak-outs I hear on ATC/CVR is when they try everything and it's no use, the plane is just falling out of the sky

successful emergency landings occur when they have control - that control will calm down a pilot very easily

even if it's not perfect, some control is usually enough to land safely

This airframe, basically identical to the one involved in the SWA emergency landing, safely carried me across the US a couple years ago... m.planespotters.net/airframe/Boeing/737/…

bwDraco

To me, self-control is the holy grail among human skills, and I have long believed that with enough self-control, you can achieve anything.

That's why it matters so much to me.

It's not just in aviation. It's basically everything in life.

Michael Frank

4:49 AM

@allquixotic My aircraft engineer friend said, and I quote "That engine is porked".

bwDraco

in Rational Thinkers, 41 secs ago, by Undo

Stop flagging old stuff

Bob

5:20 AM

@allquixotic got pinged but didn't click through - at work

@allquixotic fatality? was it from the uncontained engine failure?

oof

that's ... ridiculously unlucky

user226528

@DavidPostill Human is not a Helium balloon. Also, what you are talking about is upforce, not downforce. You could have pointed out that an empty Hellium canister weighs more than a full one. But again, a human is no canister either. Also a canister doesn't behave like a balloon.

user226528

5:34 AM

@Burgi You see this kind of situation in the films a lot. Occasionally, the parcel contains explosives intended to kill the neighbor. (And the neighbor goes on a quest to avenge the killed friend; although I don't it makes you feel any better after getting killed.) Also, sometimes, the parcel contains drugs. DEA pours in and arrests the unsuspecting neighbor while the culprit goes to Miami and enjoys ... whatever people enjoy in Miami.

bwDraco

7:13 AM

nyti.ms/2JONoYN

lol

> Planned Outage: April 17, 2018 - December 31, 9999

user226528

No parecen estar experimentando una pantalla azul de la muerte.

bwDraco

!!s/P/Unp/

ChatBot John Cavil

@bwDraco Unplanned Outage: April 17, 2018 - December 31, 9999 (source)

user226528

> This service is unavailable from approximately 2:50 A.M. ET, on Tuesday April 17, 2018 until approximately 6:40 P.M. ET, on Thursday September 22, 2016, due to planned maintenance.

user226528

Please exercise caution while using your time machine; a temporal traffic is expected and is not out of ordinary. Please be patient.

Andy K

7:41 AM

morning

user226528

Oh, good morning! :)

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