Personal computing discussed

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by Waco
Mon Nov 25, 2019 12:58 pm
Forum: Hot Deals
Topic: Amazon Echo Dot for $9
Replies: 4
Views: 3237

Re: Amazon Echo Dot for $9

That's a steal. Amazon is giving these away recently!
by Waco
Mon Nov 18, 2019 4:15 pm
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 35
Views: 698

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

For mainstream stuff, not really that by much. 3900X will only show its muscles if you throw VMs, numbering-crunching and content creation stuff at it. I think you severely underestimate the difference between a 3770k core and a 3900x... Nope, it is pretty close under mainstream stuff. Zen2 isn't t...
by Waco
Mon Nov 18, 2019 12:56 pm
Forum: System Builders Anonymous
Topic: Starfalcon has built a new computer....not a joke
Replies: 35
Views: 698

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

Krogoth wrote:
For mainstream stuff, not really that by much. 3900X will only show its muscles if you throw VMs, numbering-crunching and content creation stuff at it.

I think you severely underestimate the difference between a 3770k core and a 3900x...
by Waco
Thu Nov 14, 2019 5:49 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 63
Views: 1270

Re: LED Light for Snowblower

Since it is a full-wave rectifier the flicker will actually be at 2x the AC frequency, which helps. Good point. It sounds like a typical running RPM for most snowblowers is 3500-4500 RPM, so it'd be somewhere north of 100 Hz, and that's likely not enough to bother anyone. http://www.bio-licht.org/0...
by Waco
Thu Nov 14, 2019 4:52 pm
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 56
Views: 2687

Re: Sick screens and sick screen handling

Shouefref wrote:
If an option is not ticked, the user nevertheless has to decide whether it should be ticked or not.

No, they do not. They cannot tick the box if it is grayed out, that is entirely the point.
by Waco
Thu Nov 14, 2019 4:48 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 63
Views: 1270

Re: LED Light for Snowblower

Durf. Thanks. I knew I was missing something; I should drink more coffee before posting. Two lights in series would mitigate any voltage-related concerns. I'd worry that nearly 26 volts peak would damage the LEDs. I'd guess it probably runs in the upper 6k RPM range if it's a small two stroke, but a...
by Waco
Thu Nov 14, 2019 2:43 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 63
Views: 1270

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 Waco
Thu Nov 14, 2019 1:00 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 63
Views: 1270

Re: LED Light for Snowblower

Something else you may need to consider - if you do get 18VAC out of the generator, once rectified and filtered that's going to be around 25VDC. For a full-wave rectifier wouldn't the DC output voltage be a little less than the 18 VRMS input? I don't recall the exact math off the top of my head, bu...
by Waco
Thu Nov 14, 2019 11:34 am
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 56
Views: 2687

Re: Sick screens and sick screen handling

I honestly see zero problems with what you just posted. It's clear, it conveys context, and it's easy to read. It immediately shows you what can/can't be selected at a glance.

Perhaps it's nothing to do with stubbornness on anyone's part but your own.
by Waco
Thu Nov 14, 2019 12:04 am
Forum: Graphics
Topic: Who else is excited about Intel's Xe?
Replies: 51
Views: 5143

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. We're shoo...
by Waco
Wed Nov 13, 2019 1:17 pm
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 56
Views: 2687

Re: Sick screens and sick screen handling

I think we've beaten this to death. Ultra high contrast is bad for your eyes in the long term. There are high contrast themes you can use if it bothers you. If it continues to bother you, even with those themes, you can tweak your display contrast/brightness/gamma curves to match whatever you'd like...
by Waco
Wed Nov 13, 2019 1:04 pm
Forum: Processors
Topic: ARM HPC incoming
Replies: 4
Views: 128

Re: ARM HPC incoming

The naming takes me back to the Athlon 64 FX chips. I feel old now.
by Waco
Wed Nov 13, 2019 1:00 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

They are electrical differences as well which is why TR cannot POST with a SP2 board and likewise Epyc chips cannot POST with a Socket TR4 board. Not really. It's purely a support thing - the sockets themselves are compatible each way. I've spoken with the AMD engineers on this, and it's purely to ...
by Waco
Wed Nov 13, 2019 12:49 pm
Forum: Processors
Topic: ARM HPC incoming
Replies: 4
Views: 128

Re: ARM HPC incoming

:)
by Waco
Wed Nov 13, 2019 12:48 pm
Forum: Processors
Topic: Intel CPUs vulnerable to Zombieload v2
Replies: 9
Views: 332

Re: Intel CPUs vulnerable to Zombieload v2

Sigh. Another round of patching, another round of performance loss. Thankfully I don't rely on TSX for any gains in my systems...
by Waco
Wed Nov 13, 2019 12:31 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1531
Views: 66761

Re: Something's different...

meerkt wrote:
Ergo, ((free gear + rodent appreciation) > priceless).

Agreed. The gear is a bonus, the cool insight into the industry and the appeal of writing reviews that are appreciated by others is the main driver.

It's not a way to make a living, in general.
by Waco
Tue Nov 12, 2019 11:31 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1531
Views: 66761

Re: Something's different...

Another listicle is up with comments closed. Sigh, I'd hoped at least that the powers-at-be would realize that those things aren't helping.
by Waco
Mon Nov 11, 2019 11:56 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1531
Views: 66761

Re: Something's different...

Mr Bill wrote:
And I imagine it takes a lot of practice/experience before you are up to doing a good CPU/GPU review.

Yep. Being capable of unbiased and informative reviews is definitely an acquired skill of any product. Computer components as complicated as CPUs and GPUs are even worse.
by Waco
Mon Nov 11, 2019 12:57 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1531
Views: 66761

Re: Something's different...

When the wife and I reviewed stuff, the only payment was keeping the parts. Sometimes you came out ahead of minimum wage. Sometimes you came out far behind.

Writing a good review takes A LOT more time than most would guess - it's only a good unpaid job if you're bored in college or jobless...
by Waco
Sat Nov 09, 2019 1:01 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

No, it's a NAS. Headless. Regardless, TR3 does use the same IO chip. The wider paths to the chipset are the reason for rewiring the socket. I'm willing to bet after a few months a vendor will figure out how to get Rome working on the older socket (assuming it doesn't work out of the box, just "...
by Waco
Fri Nov 08, 2019 3:32 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

I'm not sure what point you're trying to make. I'll note that my day job is HPC storage. I do run a few GB/s of throughput on my NAS in the SSD pool pretty routinely, not that IO even remotely stresses even the 1950X. Encoding and transcoding, however, do.
by Waco
Thu Nov 07, 2019 8:34 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

Unless the NAS is doing heavy-duty I/O throughput or other stuff it isn't going to be taxing the CPU at all especially in a home setting. Modern CPUs are extremely easy on the power under light loads. The node advantage in power consumption doesn't manifest much here. FYI, my personal NAS barely us...
by Waco
Thu Nov 07, 2019 5:38 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

Unless you are pulling the CPU hard for other workloads and/or are doing insane I/O throughput. I doubt you'll get much power savings from going to Threadripper 3. Given I have a few Rome servers in my testbeds at work already, I'm pretty confident I'd see a pretty substantial drop in average power...
by Waco
Thu Nov 07, 2019 1:53 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

I was looking more at the power savings and IPC improvements versus raw performance. The 24 core Zen 2 is likely about 50% faster than my 1950X and would use substantially less power in normal workloads.
by Waco
Thu Nov 07, 2019 12:32 pm
Forum: Processors
Topic: Intel Earnings
Replies: 23
Views: 1554

Re: Intel Earnings

Well, they aren't getting rid of the CPU, they're just wanting to make it more of a SoC. I get that, and the market has been shifting that way for years even in the server space.
by Waco
Thu Nov 07, 2019 12:30 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

Aww, dammit. Confirmed that the new Threadrippers will need a new motherboard. That sucks, I was hoping to be able to drop in a newer Threadripper into my NAS in the future when they drop in price.
by Waco
Thu Nov 07, 2019 10:07 am
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 56
Views: 2687

Re: Sick screens and sick screen handling

Maximal contrast is bad for your eyes in the long term - it's a balance of readability with eye fatigue.
by Waco
Wed Nov 06, 2019 5:03 pm
Forum: Processors
Topic: Zen 2 Threadripper talk and news (rumors too)
Replies: 49
Views: 3541

Re: Zen 2 Threadripper talk and news (rumors too)

Throw a bunch of salt on those listings, because the L2/L3 cache sizing is almost 100% incorrect. There's no way AMD is running 8 chiplets on a 24 or 32 core part.
by Waco
Tue Nov 05, 2019 10:41 am
Forum: The Back Porch
Topic: TR Gerbil's Choice Review I - we have a winner!
Replies: 144
Views: 10279

Re: TR Gerbil's Choice Review I - we have a winner!

Igor_Kavinski wrote:
Hate to bother you but couldn't you send the stuff over to one of the current TR reviewers and have them do what you had in mind?

Which reviewer would that be? Last I checked we didn't have any left...
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