Personal computing discussed

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by just brew it!
Tue Nov 19, 2019 8:36 am
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 22
Views: 296

Re: Starfalcon has built a new computer....not a joke

That's still unlikely to get you to 10GHz without cryogenics. Silicon has hit a clockspeed plateau.

Sure, you're using less power at 7nm. But you've also got a much smaller surface area through which you can remove the heat. So the cooling is still a challenge.
by just brew it!
Mon Nov 18, 2019 7:47 pm
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 22
Views: 296

Re: Starfalcon has built a new computer....not a joke

Given IPC improvements over the years, a 10Ghz Netburst core probably would not net you much of a gain even in single threaded performance, and might even be a step backwards. My napkin-math guess is that a netburst would have to hit around 15Ghz just to keep up with modern Sky Lake based cores in ...
by just brew it!
Mon Nov 18, 2019 3:59 pm
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 22
Views: 296

Re: Starfalcon has built a new computer....not a joke

Yeah. Sucks that for mainstream CPUs, we are still stuck at sub-5GHz speeds. Wish Intel's NetBurst architecture would have reached 10GHz. At least, single-threaded apps would have been blazing fast. Which kinda makes me wonder. What if they had kept on developing NetBurst and just included a single...
by just brew it!
Mon Nov 18, 2019 10:29 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1401
Views: 51000

Re: Something's different...

Yeah. It's not horrendously out of place for what we do (did), but randomly a bit too far into the pro audio realm. If they're looking to move in that direction, something like the 6 best USB recording interfaces for music and/or youtube might have been closer to the mark, or maybe something about ...
by just brew it!
Mon Nov 18, 2019 10:14 am
Forum: General Hardware
Topic: PC Won't Start - Replaced P/S - What's next?
Replies: 10
Views: 150

Re: PC Won't Start - Replaced P/S - What's next?

You said the PS made a small noise but that its fan didn't spin. One troubleshooting step would be to disconnect the PS from everything, remove it from the case, and see if its fan will spin when you plug it in and flip it's power button. If it doesn't, that's probably your culprit. You'll need to ...
by just brew it!
Mon Nov 18, 2019 7:47 am
Forum: General Hardware
Topic: PC Won't Start - Replaced P/S - What's next?
Replies: 10
Views: 150

Re: PC Won't Start - Replaced P/S - What's next?

I disconnected all peripheral power and USB power but no change. The only connections from the power supply are to the motherboard and cpu. Do I also need to disconnect the SATA connectors? Should not be necessary if you disconnected the SATA power leads, and is unlikely to help, but couldn't hurt....
by just brew it!
Mon Nov 18, 2019 7:41 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1401
Views: 51000

Re: Something's different...

Here's the thing... for what it is, it actually isn't terrible. It's just jarringly out of place as a front page article, given the site's historical focus. And anyone who happens across it via Google search is going to have little reason to stick around on the site afterwards, since none of the res...
by just brew it!
Sun Nov 17, 2019 9:17 pm
Forum: Processors
Topic: Ryzen 3xxx or Intel 10th?
Replies: 24
Views: 1023

Re: Ryzen 3xxx or Intel 10th?

One more thought. There's always people posting in the forums about how their OC'd CPU loses stable frequency over time. As AMD & Intel push their silicon to the absolute limit, does anyone else feel like we're being "forced" into this inevitable outcome straight from the manufacturer...
by just brew it!
Sun Nov 17, 2019 12:19 pm
Forum: Apple Sanctuary
Topic: Can I install Apple Carplay and Android Auto at the same time on a vehicle?
Replies: 18
Views: 266

Re: Can I install Apple Carplay and Android Auto at the same time on a vehicle?

Cassette players are much more reliable as an input than Early BT implementations. The adapters ranged incredibly widely in quality though, even though the prices didn't vary by all that much. Turned out the best sounding ones were the generic ones that seemed to be exclusive to Radio Shack (go fig...
by just brew it!
Sun Nov 17, 2019 10:32 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

If it was me, I'd include the fuse. It is cheap protection against wiring mistakes and component failures which can potentially cause short circuits.

OTOH there's also the old EE joke about how a $100 component will quite happily fry itself to protect a 20 cent fuse. :wink:
by just brew it!
Sun Nov 17, 2019 7:39 am
Forum: Visual Haven
Topic: Video encoding with high FPS
Replies: 5
Views: 80

Re: Video encoding with high FPS

Igor_Kavinski wrote:
Maybe the solution lies in adaptive fps video? Speed up or slow down the video as the scene requires. That would need a new video format, new tools, new software, new workflow. Any possibility this might happen in our lifetime?

Probably not, for the reasons you already listed.
by just brew it!
Sat Nov 16, 2019 11:33 pm
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 22
Views: 296

Re: Starfalcon has built a new computer....not a joke

Wow, jumping all the way to a 3900X from a 7 year old 3770K rig has gotta be a pretty huge bump in performance!
by just brew it!
Sat Nov 16, 2019 10:28 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1401
Views: 51000

Re: Something's different...

meerkt wrote:
At first I expected maybe a tech slant. Modeling, profiling? No.
A capo and Petrucci picks. Indeed out of left field.

More like found under the seats behind the left field foul line if you ask me.
by just brew it!
Sat Nov 16, 2019 5:48 pm
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 38
Views: 1046

Re: Sick screens and sick screen handling

I would like to add that I agree with Just brew it about the red/green problem too, but that doesn't occur that much in software - which doesn't mean they should introduce it or not avoid it. It's all over the frikkin' place. You probably just don't realize it because you're not colorblind. It's ev...
by just brew it!
Sat Nov 16, 2019 5:46 pm
Forum: Storage
Topic: Trying to salvage data from co-worker HDD 2.5"
Replies: 1
Views: 77

Re: Trying to salvage data from co-worker HDD 2.5"

Yup, before reading to the very end of your post I was about to reply with "just remove the interposer, all it takes is removing a few small screws". :wink:

Every HP laptop I've seen with a 2.5" HDD has had one of those...
by just brew it!
Fri Nov 15, 2019 7:34 pm
Forum: General Hardware
Topic: PC Won't Start - Replaced P/S - What's next?
Replies: 10
Views: 150

Re: PC Won't Start - Replaced P/S - What's next?

The new powersupply (Corsair RM750x) makes a small noise when I push the power button but none of the fans on the power supply, cpu, gpu, or case spin up and I don't see any other signs of activity. Sounds like something may be shorted out, causing the power supply's overload protection to kick in....
by just brew it!
Fri Nov 15, 2019 1:51 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

For basic silicon rectifiers/bridges lower current rating is typically just going to mean physically smaller and cheaper. As long as you have a safety margin of at least a factor of 2 you should be good to go. 35A is massive overkill in your case, since you're probably going to be dealing with curre...
by just brew it!
Fri Nov 15, 2019 10:28 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

You really need to measure the smoothed output of the rectifier under a load equivalent of the light (approx .8A). Otherwise the voltage is going to be significantly higher than expected. Unloaded, it will approach peak AC voltage. Under load, it is going to be something less, depending on the size...
by just brew it!
Fri Nov 15, 2019 9:35 am
Forum: Processors
Topic: Needs a bigger cooler
Replies: 2
Views: 78

Re: Needs a bigger cooler

TDPs have become a complete joke.
by just brew it!
Fri Nov 15, 2019 9:32 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

I doubt the ripple current rating of the caps will matter in this context, I wouldn't worry about it. If you'd like to avoid the added expense and complexity of a 12V step-down regulator, you will want to do 2 things: 1. Measure how much current the light draws when connected to a nominal 12V source...
by just brew it!
Thu Nov 14, 2019 10:44 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

The lead I'm connecting to is designed for an AC headlight, yes. It's an "optional" accessory that comes/ came with the higher end models, but for whatever reason, they still put the strator in on the lower end ones. Unfortunately, nobody sells the actual headlight assemblies, or they're ...
by just brew it!
Thu Nov 14, 2019 5:25 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

Two lights in series would mitigate any voltage-related concerns. I'd worry that nearly 26 volts peak would damage the LEDs. Yeah, it's all gonna depend on how much voltage he actually gets. I'd guess it probably runs in the upper 6k RPM range if it's a small two stroke, but at lower speeds, it wou...
by just brew it!
Thu Nov 14, 2019 4:09 pm
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 38
Views: 1046

Re: Sick screens and sick screen handling

Thing is, most of us don't seem to have a readability issue with the greyed out options; therefore your argument seems superfluous. Greying them out conveys in a very straightforward way the idea that the option isn't currently selectable, without taking up any additional screen real estate. IMO a m...
by just brew it!
Thu Nov 14, 2019 3:46 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

VAC_RMS = V(peak)/sqrt(2). A bridge rectifier is going to give an output based on the peak voltage, so JBI is correct that 18VAC (RMS) ~= 25VDC (before conditioning and ignoring diode forward voltages). That 90% figure sounds more like the efficiency AC to DC power supply. /opinion It's been a whil...
by just brew it!
Thu Nov 14, 2019 12:25 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 38
Views: 521

Re: LED Light for Snowblower

a "full wave" bridge rectifier - Any requirements here? I see a lot of people using 50A/100V ones, but since most people are reporting 12-18V coming from the strator and are saying a maximum of about 27W can be generated, is that really necessary? I may see if I can locate a multi-meter t...
by just brew it!
Thu Nov 14, 2019 8:08 am
Forum: Graphics
Topic: Who else is excited about Intel's Xe?
Replies: 44
Views: 3091

Re: Who else is excited about Intel's Xe?

:lol: I have essentially zero interest in Aurora/A21. It'll be a "neat" machine but my groups tend to design/buy machines that can run our mission codes at best efficiency. Machines like El Capitan, Summit, and Frontier will run about .5% efficiency at best for the codes we run. This soun...
by just brew it!
Wed Nov 13, 2019 10:56 am
Forum: Hot Deals
Topic: Ryzen CPU Deals - Microcenter
Replies: 5
Views: 115

Re: Ryzen CPU Deals - Microcenter

Wow, that is a really good deal! Microcenter's bundle deals are almost always decent.
by just brew it!
Wed Nov 13, 2019 9:45 am
Forum: Processors
Topic: Intel CPUs vulnerable to Zombieload v2
Replies: 7
Views: 163

Re: Intel CPUs vulnerable to Zombieload v2

K-L-Waster wrote:
From 2020 1996 forward, the only safe computing involves an abacus.

FTFY.

x86 CPUs have implemented speculative execution since the Pentium II and K5. People just hadn't seriously started to explore how it might be exploited "in the wild" until recently.
by just brew it!
Wed Nov 13, 2019 8:42 am
Forum: Processors
Topic: Intel CPUs vulnerable to Zombieload v2
Replies: 7
Views: 163

Re: Intel CPUs vulnerable to Zombieload v2

It's the new normal, I'm afraid. Both for CPU exploits and forum breakage. :cry:
by just brew it!
Wed Nov 13, 2019 3:22 am
Forum: System Builders Anonymous
Topic: Need Advice On An Overdue System Upgrade.
Replies: 73
Views: 3351

Re: Need Advice On An Overdue System Upgrade.

A few things to consider on the UPS issue: 1. The UPS rating is the amount of power the UPS can supply at line voltage. The PSU rating is the amount of power it can supply to the motherboard and GPU at 12/5/3.3 volts. Any inefficiencies in the PSU itself are on top of that. So if you're pushing the ...
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