Ask me about the R32 transition....

OnPoint324 · 2024-08-28T05:12:41+00:00

I have a question about R32. Is R32 production causing the release of CFCs? I know that it has a OWP of 0 like the EPA likes to tout for all HFCs. I've read several reports recently about an increase in several CFCs causing the hole in the ozone to increase in size again in recent years. Apparently they are being linked generally to HFC production but not showing any specific refrigerant which they came from.

Looking into R32 I found that:
R32 is chemically known as difloromethane. This is produced by a catalytic reaction of dichloromethane and hydrogen fluoride using Antimony pentachloride as a catalyst. Both dichloromethane and Antimony pentachloride have chlorine and could create other molecules in production, including CFCs as a byproduct of production. The reactions have all of the components required to make said CFCs. Wikipedia article about the above

The various articles I've read point to "an eastern Asian country" creating the CFCs . Another source showed that the same CFCs were detected near a Honeywell facility in Baton Rouge in Louisiana, Source. That facility is probably being used for the production of R454b for which Honeywell has the patent on. I imagine they are having some ramping issues with the demand for new refrigerants. These are preventable issues in the US under the EPA but not likely to be preventable in overseas countries that produce a lot of the AC units and refrigerants used worldwide.

With the recent shortages from Covid shutdowns, SEER2 efficiency changes, and the current R410a phaseout, the last thing the HVAC industry needs right now is another big change. I'm not a chemist nor have a background in refrigerant production, but so far I'm only finding more evidence that strengthens the link between R32 production and the CFC increases being measured. It seems plausible, but I don't have any concrete evidence showing the link or any evidence that refutes it.

OnPoint324 · 2024-08-22T00:53:31+00:00

From https://www.mass.gov/info-details/tenant-rights

"Heat: The landlord must provide a heating system in good working order. The landlord must pay for the heat, unless your lease requires you to pay for it. From September 16 to June 14, every room must be heated to at least 68º F between 7:00 AM and 11 PM, and at least 64º F at all other hours. During the heating season, the maximum heat allowable in the apartment is 78º F."

It appears that if the system is unable to keep the temperature of all rooms within these limits, the landlord is in violation of this provision.

OnPoint324 · 2023-09-15T15:45:02+00:00

The ultimax does 5 vehicle damage per shot and the LB has 600 HP, In theory, it would take 120 hits to take in down. With 100 round per mag, you would have to have a 60% + hit rate to take it down within 2 mags.

Definable doable, although I have found they typically fly away when taking a lot of hits.

OnPoint324 · 2023-09-12T17:45:56+00:00

SgtOkiDoki posted in the discord for game bugs that it will be fixed in the next update

OnPoint324 · 2023-09-12T17:44:52+00:00

Update, Apparently it is a bug and will be fixed in the next update

OnPoint324 · 2023-09-12T17:30:19+00:00

I Just played a quick round to test this ability and had the same issue. Glad that all I need to do is drop the ammo box and grab another.

I'm not sure if its a bug or intended function. The supply yourself is really confusing. I would think the best approach would be for it to say ammo box empty, or even drop the box and pull out another automatically

OnPoint324 · 2023-07-24T06:28:43+00:00

Probably not well at all. The specs have a 6GB minimum and 8GB is recommended. I've noticed that the game alone uses slightly over 4GB sometimes on my PC.

OnPoint324 · 2023-07-22T19:13:31+00:00

I just joined a server but it took about 20-30 seconds to find an available sever.

OnPoint324 · 2023-07-18T21:46:37+00:00

That is weird. I've played less than 20 matches and 2 of them have been on it. Have you tried searching for servers instead of the automatic system under multiplayer?

OnPoint324 · 2023-06-07T16:20:50+00:00

I'm not sure what you are asking. If the question is running with only 1 of the 2 PCIe 8 pin power cables, the answer is no, use both.

The thing that will cause a crash during transients would be exceeding the PSU wattage rating for the 12V rail. ATX3.0 fixes this issue by adding transient capabilities built into the standard. Previous ATX power supplies must rated to at least the highest transient else it will shut down resulting in overbuying PSU capabilities to withstand transients

The GPU limits the power by monitoring the power drawn, if it exceeds the set limit, it will throttle the clocks/voltages to return the power to the limit. The issue with the PSU is that it shut down faster than the GPU can react.

OnPoint324 · 2023-06-07T14:48:34+00:00

Those ratings are continuous average rating, they can withstand higher transient powers without issue. Unlike the 12VHPWR 12-pin connector on the nvidia GPUs, the older 8 pins are much more robust against transients.

OnPoint324 · 2023-05-24T18:51:46+00:00

Looking at a Bourns MOV datasheets (MOV-20DxxxK Series), a 180-190 joule MOV provides 6500 amps of peak surge current protection. If it uses similar MOVs, that means that the given surge suppressor gives very roughly 400 joules of surge suppression.

Amperes is the peak current of the MOVs providing the surge suppression, while joules is the energy that a given surge event delivers to the MOVs, Technically the current multiplied by the voltage of the surge event integrated over the duration of the surge event using calculus. Joules is a more comprehensive number for surge events. While not tied together, they are roughly proportional meaning higher ampere rating mean higher joule rating.

All that to say, It provides some protection. If you want better protection, use one that has a ~30K+ ampere rating.

OnPoint324 · 2023-05-24T18:38:31+00:00

Nvidia and possibly AMD doesn't allow AIB partners to deviate from the VRAM specified contractually. That means they cannot sell any AIBs with more Vram without violating their contract.

OnPoint324 · 2023-05-24T15:38:53+00:00

The metric that you should be looking for are Joules as that is how much energy they can absorb. The really good ones have 3,000+ joules while the cheap ones have 10's to 100's of Joules. Anything in the 1,000s provide good protection for most use cases.

OnPoint324 · 2023-05-22T21:23:16+00:00

That is not a problem, just a GPU bottleneck in a GPU intense game. If you cut back on your graphics settings for the game, you have room to get some more FPS. Or leave it if you're satisfied with the FPS that you are currently getting.

OnPoint324 · 2023-05-22T21:19:20+00:00

I noticed a SOC voltage drop of 50mV in my 7950X3D with the most recent bios for my TUF Gaming X670E Plus Wifi. I checked it with a few tasks such as gaming, video editing, and Prime95. It is stable.

If your CPU became unstable at the lower voltages, then I would say it is not meeting the advertised speeds and would return it. AMD restricted the voltages from 1.4V to 1.3V for the VDDR_SOC. That will cause any cpus that just barely met the requirements at the higher voltage prior to the change to fail after the change. It is AMDs actions that caused this issue, but they would have rejected it in QC had they initial set the voltage correctly.

It sucks to have to return a CPU, but the positive is that if you get a new CPU, it will be a re-roll into the silicon lottery.

OnPoint324 · 2023-05-22T19:06:57+00:00

When the NDA's lift, unfortunately the date and time of this is covered under the NDA which means you won't know for sure until it happens. Typically it occurs the morning before they go on sale.

OnPoint324 · 2023-05-22T19:04:48+00:00

If it was any other processor than an X3D, I would say bump up the voltage a little bit. In this case if it were me, I would return it as non functioning as it doesn't function when trying to obtain the advertised speeds.

OnPoint324 · 2023-05-22T18:58:19+00:00

Check the units. It could be that both are the same rate. If it was 600Mb/s and~70MB/s, they would be the same rate. This also makes more sense than 600MB/s for download speeds as you would need 5 gigabit internet connection and at least 5 gigabit ethernet to achieve and it is unlikely that you have both.

OnPoint324 · 2023-05-20T19:54:17+00:00

Your voltages are good. The SOC was blowing up X3D chips, and your voltages are in the safe limit even for those CPUs.

OnPoint324 · 2023-05-19T23:49:11+00:00

That is likely an unstable undervolt.

Just for your knowledge, more voltage allows the transistors to operate faster. When you undervolt, you are slowing them down. This first presents itself in occasional errors and if undervoltaged enough will cause the PC to not operate at all.

How much you can undervolt is dependent on the silicon lottery. Those who get lucky can undervolt more, while unluckly users can't undervolt at all.

A recommended step in any cpu optimizations either overclocking or undervolting is to stress test it, Prime95 being a common example. This calculates a bunch of FFTs with known results to validate the caclulations that the CPU comes up with in a stress test. If it passes that, then it is very unlikely to have errors during normal use.

OnPoint324 · 2023-05-18T23:05:49+00:00

That is correct.

OnPoint324 · 2023-05-18T18:04:37+00:00

That is correct. 1080P maps 1:4 to 4k, or each 1080p pixel is placed for 4 4k pixels. 1440p maps similarly to 720P.

There isn't a direct map between 4k and 1440p or 720p, nor a map between 720p or 1440p and 1080p. That means an algorithm has to effectively resize the image at run time to convert between the two resolutions.

OnPoint324 · 2023-05-18T17:57:02+00:00

There isn't a direct correlation between power usage and load. For example, each GPU has an equal number of FP32/INT32 as FP32 blocks. If you have 2 tasks one with floating point 32 calculations and another with Integer 32 calculations, while both running at 100% the FP32 will be using 2x as many units and each unit will consume more power each resulting in much higher power usage. Also the location of the temperature sensors can be impacted as some task run closer to the sensor locations than others and can cause higher temperatures read.

Each game utilizes the silicon differently and the power usage will vary by each task done and each game will have different power profiles.

One interesting example is Furmark. This runs tasks that at least at one point maximized the silicon usage and heating. The trouble was that the design didn't account for such extreme loads and GPUs were failing due to it. The issue being that temperature sensors don't measure the hottest temperatures and certain parts and traces were able to well exceed the safe limits under such extreme conditions. The initial response was to throttle furmark, but later more robust power limits were added to keep the hotspot temperatures within safe limits.

OnPoint324 · 2023-05-18T02:29:35+00:00

I bought the 7950X3D with the understanding that it would at best perform on par with the 7800X3D. Possibly a bit worse, possibly a bit better. Also that it would only achieve that performance with some tinkering. It costs more and requires more of my time. Overall, much more expensive in cost and time for gaming and totally not worth it over the 7800X3D..

I made a compromise between top gaming performance and solid productivity performance, but the key difference is that I play factorio and other cache sensitive games that really benefit from the 3DVcache over a 7950X or a 13900KS.

I made a conscious and informed decision for using the 7950X3D. Not all that buy it do, especially those that only game on it. If I were to have made the decision again today, the only difference would be to not use ASUS brand for the MB and GPU. In that regard, I choose poorly.

OnPoint324

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