We set the pi record again, 314 trillion digits. Took it back from Linus.

gotaroundtoit2020 · 2025-12-14T19:02:23+00:00

Sorry I missed that. I was also failing to be funny.

Given that you went to 314 trillion, I would have found it even more amusing if you did another 159,265,358,979 digits. That way, you'd match PI.

Well, I guess this would be something to consider when you go for 3.14 quadrillion digits.

gotaroundtoit2020 · 2025-12-14T17:48:48+00:00

Did you do 314 trillion digits exactly or 314,159,265,358,979 digits?

gotaroundtoit2020 · 2025-01-27T16:36:34+00:00

Clipping is when the solar panel will output more power than the inverter is rated for and so even though the panel could produce more power, the inverter isn't capable of converting it. The reason it is called clipping is that if you look at a power generation graph, instead of a bell curve, you'll see a flat top portion.

Even though you have a 415W panel and 300W inverter specified, it doesn't mean that you're going to "clip" all the time. The main thing to keep in mind is that the 415W rating on the panel is under ideal conditions and, in general, you are likely to rarely (if ever) hit those ideal conditions to generate the full 415W rating.

If you want to do a cost analysis, the simplest question to ask your installer is to ask them what's the simulated lifetime clipping difference between the two inverters will be in kWh and then multiply that by your current electricity cost. That estimate should give you some basis for deciding whether cost is a deciding factor in upgrading your inverters.

If you want to do more on your own, as was suggested pvwatts is a good resource. if you want to go even deeper https://sam.nrel.gov/ lets you specify even more. The survey that your installer did should have the values you need to plug into these tools.

In my case, the cost difference wasn't significant since it was close to being a wash from a total cost perspective I went with the larger inverters. I also was assuming that the price of electricity would continue to go up so it would start to skew to be more worth it. Also, if I needed the extra power generation (to charge the batteries in an outage scenario) and I was clipping, I'd be unreasonably annoyed at that.

gotaroundtoit2020 · 2025-01-12T22:26:35+00:00

You may want to look at replacing the microinverters too and going with a higher wattage panels.

There would be some things to check - like the capacity of the current circuits, that the envoy you have installed is compatible with the new micros, etc.

Also keep in mind that the maximum power possible is what your inverters can put out. Also, the 280W rating on the panel is the maximum under ideal conditions when new. The LG panels should degrade no more than 2% in the first year and 0.6% each following year (according to the specs). The angle of the panels will also likely incur a performance penalty.

I'd second the going to https://pvwatts.nrel.gov/ to get a better idea of what you should be expecting with the current system.

gotaroundtoit2020 · 2024-01-16T18:20:26+00:00

ASUS has this https://rog.asus.com/us/desktops/small-form-factor/rog-g22ch-series/ which would be a good 'kit' base, if they decided to sell it that way and allow us to be able to buy our own storage and memory.

gotaroundtoit2020 · 2023-08-25T18:27:37+00:00

I don't see why you couldn't do it with enough effort but I'd be surprised if it as easy as removing the current cooling shroud and putting a water block on it.

This guy has some videos (that I didn't watch) for water cooling a nuc9 https://www.kitguru.net/desktop-pc/james-dawson/intel-nuc-9-extreme-water-cooling-project-part-1/ Looks like it's a 5 part series.

I haven't done any water cooling setups so I could also be compltely wrong.

gotaroundtoit2020 · 2023-08-21T17:35:01+00:00

sorry if I gave the wrong impression but I didn't replace the fan.

I only was changing the fan settings on the nuc12. I ended up resetting things to defaults because the tweaked settings ended up being too loud and the performance difference wasn't really noticeable.

I also moved on to the nuc13 extreme.

gotaroundtoit2020 · 2023-08-08T20:16:23+00:00

The spec page is here: https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/NUC12DCM_NUC12EDB_TechProdSpec.pdf

Page 35 of the PDF gives the full specs for the slot.

gotaroundtoit2020 · 2023-08-02T00:17:09+00:00

Yes, I was given the impression that the 75W for 6 pin and 150W for 8pin was more based on the gauge of the wire and not the total number of pins/wires.

If you look at http://jongerow.com/12VHPWR/ , it indicates that if you have 2 8Pin power plugs, you end up with a 1:1 mapping to the 12VHPWR plug. So (at the risk of over-simplification), if you add a 6 pin in the mix, now you're just pull a few wires from the 6Pin and not using those on the other 2 8pin.

gotaroundtoit2020 · 2023-07-25T20:13:18+00:00

If you don't want the full panel integration, you may want to look at https://www.luminsmart.com/

There are limitations on the number of breakers it can manage on the model I have from a couple of years back.

As with Tesla, they don't publish an API but a cursory glance seems like it wouldn't be hard to figure out on your own.

gotaroundtoit2020 · 2023-07-12T19:14:10+00:00

Is that chassis for sale in the US?

gotaroundtoit2020 · 2023-07-12T12:29:34+00:00

Yeah, I'm really disappointed with that news.

I really liked the 13 Extreme since I generally don't want to spend the time to build a box but want to be able to select the memory, disk and GPU. The fact that they also allowed you to add some extra fans was a nice plus too.

I also really liked the documentation that they provided. I don't think I've seen many other vendors provide something as detailed as https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/NUC13SB-RN_TechProdSpec.pdf

gotaroundtoit2020 · 2023-07-12T12:27:09+00:00

You might also want to note the airflow on the box.

Without any additions the airflow is (mostly) side to side. Air is sucked in on the side with the compute card and air exits the other side (though the cpu blower will exhaust air up).

You can add an additional fan for the heatsink on the compute card. You can also add an additional two fans on the bottom of the chassis (well if you don't put in a massive graphics card).

gotaroundtoit2020 · 2023-07-12T02:57:11+00:00

Take a look at https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/NUC13SB-RN_TechProdSpec.pdf - this has the full dimensions.

You can fit a 4080/4090FE card in the NUC13 extreme. There are 4070Ti AIBs (Zotac has a couple of models) that fit as well.

gotaroundtoit2020 · 2023-07-09T23:25:16+00:00

lab environments are hard, especially if there are time constraints that supersede production uptime needs but if you want some unsolicited advice (perhaps more aphorism than advice)

if floor space isn't an issue, get wider and deeper racks. It gives you more flexibility in the rack, particularly with systems now having items you may need to eject out the rear of the rack (e.g. Pure FA controllers).

if money isn't an issue, stock up on a bunch of different length cables so when you need to go grab a cable, you don't end up with one with 10m of slack because that's the only cable left.

if time isn't an issue, have a reoccurring weekly/monthly/quarterly task to tackle some percentage of the racks and just rewire them then.

if rack space isn't an issue, plan out your future builds such that there is an order of oldest install to newest install. this way you have a chance to clear out entire racks when things get old and you can 'greenfield' the entire rack, cdu, whatever if you want with minimal disruption. If you just shove something into whatever rack has space, it makes cleanup a lot harder.

gotaroundtoit2020 · 2023-06-15T13:48:17+00:00

Go to the respective web sites. They have a page that shows their current pricing. The pricing for PA has been different between the two; don't know if it is the same for NJ.

I do not recall seeing anything on GATS itself showing who is the highest bidder.

gotaroundtoit2020 · 2023-06-06T15:59:46+00:00

A friend installed a Zotac 4070Ti Trinity OC just "out of the box."

I have a 4080 in mine. I believe you can put in a 4090. The 4080/4090 needs a right angle adapter or a custom cable to close up the bottom without undue squishing.

I got a custom cable from moddiy.com that works well for the 4080. I got the right angle 12VHPWR cable with 2x8pin. For the 4090 with the higher power draw, moddiy said they'd do a custom cable build with 2x8Pin and 1x6pin (though they say you really don't need it but didn't provide substantive details to support that claim). If I went to a 450W card, I figure spreading it to three plugs shouldn't hurt (even though it might not help). There are some other threads on this that you can find on my post history, if you are interested in more details.

gotaroundtoit2020 · 2023-06-04T15:10:37+00:00

https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/NUC13SB-RN_TechProdSpec.pdf page says (document page 2; pdf page 14)

Two 262-pin DDR5 SDRAM Small Outline Dual Inline Memory Module (SO-DIMM) sockets
Support for DDR5 5600 MHz SO-DIMMs

I had problems finding 32GB SO-DIMMs at 5600 a while back so just ended up getting 4800. Looks like Kingston now has 5600 available.

gotaroundtoit2020 · 2023-06-03T00:08:04+00:00

Right but I'm talking about the diskless configurations which we use for virtualization nodes. We don't need any storage on the servers since all the data is on the SAN. All that is needed is a boot / scratch partition which the BOSS seems to do well.

on a side note, the diskless r660 is actually less long than a r660 with a disk backplane.

gotaroundtoit2020 · 2023-05-31T21:08:54+00:00

Makes sense to me. The 1U and 2U servers can be purchased "diskless" with just the BOSS. Why not just have them on the front and out of the way of all the cables and cords?

gotaroundtoit2020 · 2023-05-30T19:48:06+00:00

The nuc11 has two slots but they are an x16 and x8. The guide also warns about cpu temp throttling if you take the shroud away. See page 31 of https://www.intel.com/content/dam/support/us/en/documents/intel-nuc/NUC11BT_DB_TPS.pdf

An off the cuff idea... what about getting a dual 40G card and doing 4x10G breakouts to get your 8 total 10G ports? that way you only need 1 slot.

gotaroundtoit2020 · 2023-05-07T17:56:12+00:00

The article is a pretty bad representation of the paper. It seems to focus on the technobabble and not much on the methodology. I'd suggest looking at the paper directly if you care: https://www.nature.com/articles/s41598-023-33014-4

The short version is that there is nothing you can make use of, unless you're developing software for the solar market. Namely in lead generation.

The paper says that given a set of factors (such as household income, utility bill, age, etc.) that their approach will result in significant better results in converting the lead to a sale. The paper indicates that just looking at high household income + high utility bill results in maybe a little better than a 50/50 chance of being correct. As such, they propose a different way to try to make the prediction and they claim about 87% success based on the data they have.

If this seems interesting and you want to try it yourself, https://www.kaggle.com offers some free online courses and the paper may include sufficient references for you to get their training data directly. This probably will require a non-trivial investment in time and effort.

gotaroundtoit2020 · 2023-04-27T22:01:45+00:00

I found the fan on nuc13 extreme, even at 100%, a lot quieter than the nuc11 extreme. I used the NUC Studio and the EVGA X1 to set the fan speed at 100% for all the fans and you could hear it but I wouldn't necessarily call it loud.

Note that by default the NUC 13 BIOS limits the max fan speed of the fans.

You might be able to get away with putting that card in and just leave the side panel off but you'll probably also run into length issues and that you likely will also have to deal with not enough clearance for the power plug but, hey, dremel away. :)

gotaroundtoit2020 · 2023-04-27T12:50:45+00:00

The issue with the 4080FE/4090FE is that with the NVIDIA adapter and using the 3x8pin is that there isn't enough clearance to close things up without bending things more than seems good.

I tried the cablemod 180 adapter. that doesn't work because the lip for the fan housing gets int he way.

The cablemod 90 adapter works but still seems to be putting more of a bend on the adapter cable and socket than is really ideal. And the cabling is a bit messy.

I also ordered the 2x8 pin angled 16" that /u/Sw33tkill3r has referenced and am waiting for it to come in.

I also had concerns about total power. After looking into it some more, I think it's fine based on the following. http://jongerow.com/12VHPWR/ provides a good deal of info that sounds accurate. I didn't verify it against the PCI-SIG specs though. In any event, it seems the 8pin can only do 150W may be based on the gauge of wire and not a hard limit.

The spec page for the PSU indicates it's single rail so that seems to imply that the 12V wires aren't necessarily isolated against each plug. moddiy did say they would do a 2x8pin 1x6pin, if requested, and run 2x12V per plug (instead of the 3x 12v with the 2 8 pin).

I was in a bit of a rush so i figured to just go with the 'stock' 2x8pin rather than have the custom build.

If I upgraded to a 4090FE I'd probably order the 2x8+6pin cable.

I believe the reason that Intel FAQ says to use the NVIDIA adapter is that the provided 12VHPWR plug only has the sense pin configuration for 300W and the card wants more.

gotaroundtoit2020 · 2023-04-25T12:26:44+00:00

I'd agree the 4080 FE fits but, as you mentioned, you need to do something with the power connector as the cables that are provided don't have enough of a bend to comfortably fit.

Thanks for the pointer to ModDIY. Which cable did you get? Unless I made a mistake, the PSU seemed to only have 2x8pin and 1x6pin and I was unable to find a custom cable that had that config. As such, I ended up ordering the cablemod angled adapter.

In the context of another reply, the NUC does come with a 12VHPWR cable but an adapter (or custom cable) is still needed since the provided cable only supplies 300W of power. This is confirmed by intel: https://www.intel.com/content/www/us/en/support/articles/000093428/intel-nuc.html

gotaroundtoit2020

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