triple88a

iTrader: (2)

coinbase will send a tax form, no?

Joe Perez

iTrader: (8)

Adding to what whitrzac said...

Here in the US, 240v is actually the standard, except that we use center-tapped pole transformers to make it seem like 120v, where the center tap of the transformer is neutral, which is also grounded. Technically, it's a split-phase system.

Here's a diagram:



For a 120v outlet, you connect between neutral and either V1 or V2. So polarity matters, since one pin is at 0v (neutral) and the other is at 120v. For each 120v circuit, you're only seeing half of the transformer's secondary winding, and the job of the electrician who installs the distribution panel is to make sure that the 120v loads are more-or-less balanced across the two halves.

For a 240v outlet, one pin is V1 and the other is V2, and you don't have a neutral connection. So you could make an argument that polarity matters if you care about phasing, but for >99% of applications, it doesn't matter. What's important is that both pins are "hot" as compared to ground.




Serious answer: surge protectors are mostly BS when it comes to domestic computer applications. A lightning strike delivers so much more energy than an MOV is capable of shunting that there's virtually zero chance of a $10 power strip saving your computer from a pole hit, which is fortunately a rare event.

z31maniac

Are there any good options? Thoughts on the "whole house" surge protectors that install underneath the meter on the outside?

whitrzac

iTrader: (1)

A good renters insurance policy and lots of pictures/recipts.

I've seen sparks come out of $200 APC battery backups while killing everything plugged into it.

whitrzac

iTrader: (1)

Possibly, IIRC the IRS got access to ~20k accounts, but the bank will for sure...

triple88a

iTrader: (2)

My plan was to take a 120 volt power strip, ensure the insides are all separated and swap the end that goes into the 240 wall socket. 6-15 power cables are freaking pricy, thats why i was hoping I can stay with the standard 5-15 power cable plugs.

whitrzac

iTrader: (1)

Thats what I do.


Protip: paint it orange, red, or some other menacing color....

triple88a

iTrader: (2)

Whats the pinout on the power supply side? center plug remains ground right?

Joe Perez

iTrader: (8)

We sometimes use those out at remote transmitter sites, but the ones we buy cost a lot more than your mining rig and still blow up when the pole takes a direct hit.

Honestly, there's not much you can actually do about lightning, short of running a galvanically isolated, full-conversion UPS on the whole building. That's what I have here at WGN. For reference, the UPS is on the 3rd floor, and the battery is on the 1st floor, mostly because the weight of the battery exceeds the structural capacity of the upper floors of the building.



This is an almost indescribably bad idea. Someone will eventually plug a 120v-only device into that strip, and then you will be sad.

If you're really dedicated to this idea, just buy a 6-15 plug at Home Depot and splice it onto an existing C13 cable. Use it to power the PC, and drive everything else off of 120v.

Seriously, these plugs are less than $10.

Example: https://www.homedepot.com/p/Legrand-...CCV4/100206376

Wiring instructions in next paragraph




The pinout is that ground is ground (green or yellow / green wire), and the other two pins are both hot (usually brown & blue or white & black wires).

whitrzac

iTrader: (1)

Which is why I sugested painting it bright orange.

The location I have my rigs is for mining equipment only and only a friend and I have access.

Another friend uses one of these

y8s

iTrader: (8)

So set up notifications for when they come in stock. NVIDIA's website had the Founders cards below the cost of most stores... today. You just have to be fast.

https://www.nvidia.com/en-us/geforce...e-gtx-1080-ti/

Today power cost is $3 a day vs. mined value of $30 a day.

I should note that I'm mining using only 100% renewable electricity.

Girz0r

iTrader: (1)

Quick glance at pcpartpicker on 1080Ti cards... Holy crap have prices inflated

Joe Perez

iTrader: (8)

Have you ever done something stupid, and then thought "I shouldn't have done that. I knew better than to do that. Why did I do that?"

I have.

Basic rule of engineering: don't design a system so that you can accidentally plug Thing A into Thing B, if doing so will result in fire and destruction. Because someone will eventually do it.

Failure to heed this rule is what started the event which resulted in the core meltdown at Three Mile Island. When they built the plant, they used the same fittings for instrument air and utility water in the turbine hall, and an overly tired maintenance engineer accidentally connected a hose between the two systems. This flooded the instrument air line with water, which disabled all of the feedwater valves in the secondary loop. And this caused a lot of bad things to happen very quickly.

Erat

iTrader: (5)

I guess microcenter is selling them at regular price if you bundle other PC parts.
But most people aren't building a full system and just upgrade a card.

fooger03

iTrader: (2)

So glad I picked up my 1070 like a month before bitcoin started exploding.

I think it was $319.

z31maniac

Thanks for the tip, I did go ahead and sign up.

I guess I'll go ahead and just start collection the other stuff first (wheel, seat, monitors, etc) and then wait to build the computer last.

2slow

Same here, got 1070 for gaming a little while back and now that they are going for $600-800. Wondering if I should sell it.

This card and my speakers (Klipsch Reference 7 front and center) could pay for Xida Race setup....If only I drove a Miata as much as I sit in front of computer (all day long) or use my speakers (every other day).

whitrzac

iTrader: (1)

Never sell good speakers, unless it's to buy better speakers....

A good set of speakers will last 30+ years.

y8s

iTrader: (8)

Put your card on ebay. Then buy a cheaper one when they come up. I see various 1070s come up for sale about two or three times a day for under $500. Ti's less often for under $650.

I've got a 560Ti if anyone wants it. Can't mine.

You just have to be hair trigger when you get the notification or you'll miss it.

z31maniac

It seems as though GPUs are slowly starting to come back down.