Topic: How much wattage per outlet? (Read 8933 times)

I bought the parts and did it myself so that saved a lot...not for the untrained, but really it wasn't that hard.  I bought 20' of the wire at the local hardware store, a subpanel breaker box, breakers, 240v and 120v outlets for under $200.  I have a shop with industrial grade 3 phase which already had an extra 70A 240v breaker which was unused (office next door used to be on my power box before I moved in)...so it was just a matter of hooking it up...little scary working near live 3phase (408v) but I wore leather gloves to protect in case of  that accidental bumping.
I didn't have to run it very far.  All the plugins in my shop only added up to like 40A (and I run RepRap's, soldering irons, etc etc at random) so I just wanted to be sure.  The 6ga wire claims to be safe up to 75A so @240v that is like 150A @120V...so figuring conservatively 15 1kw rigs would be the max before I have to add another panel.

I didn't use actual metal conduit as this is to be removed when I move.  I secured the subpanel box and 240v plugs to a piece of plywood then just wired up the psu's to the 240v line (all mine autoswitch).

We currently have 3 rigs connected to the panel, all of which have 4 gpu's in each...I estimate 1kw draw each (which could be high), then I have another rig with 2 gpu's also.  We hit like ~4gh/s.

We do not have pics anywhere...there has been some taken I just have not got around to it...and I didn't like my pics.

Thanks!

Bring up a run command (Start -> Run)

and type in this:

C:\Program Files (x86)\Bitcoin\bitcoin.exe -rescan

if that doesn't work, try:

C:\Program Files\Bitcoin\bitcoin.exe -rescan

BTW (God I feel dumb on this forum) - what does he mean by "try to start bitcoin with 'bitcoin.exe -rescan'"    I'm a GUI guy.  Please help.

His reply:

"Hello, payouts were processed, so it is problem on client side. try to start bitcoin with 'bitcoin.exe -rescan'

slush"

Good question.  If this hasn't resolved itself (and of course your machine is hooked up to the internet and you've tested receiving bitcoins using the bitcoin faucet ).   Then perhaps you should contact the pool owner.

This is what I'm looking at having to get done.

Could you give me a little more details?

1) What kind of rigs are you running on this? Wattage draw?
2) How much did it cost to get the 6ga 240v run?
3) Do you have any pictures of this posted anywhere?
4) If no pics, can you describe the setup, hardware wise?

Thanks

Divide the wattage by 120 to see how many amps a given device is drawing. You want to keep it well under 15A -- especially for 24/7 use. You don't want your wires to get hot enough to start a fire...

Oh God.  Just when I thought I had things finally working...

I've had two 'payments' from Slush's pool, but nothing has shown up in my Bitcoin application.  Yes - I restarted it.  What's going on?

We use affinity to run only one of the cores during mining...for some reason when the power saving stuff was on we were having crashes...if you are stable with it on that is great...more power saved...if you are having crashes disable it before trying anything else.

Another vote for disabling spread spectrum.   IIRC this is a feature designed to reduce EMF but it's really not applicable to most environments.

Sometimes during OS install the power saving features can cause quirks like Windows install running slow as molasses. But I think those features are generally good to enable after the OS is installed. Especially if you want to cut down on power usage for a mining system. No sense in having the CPU do more work than necessary. Undervolting and setting the frequency lower would help here as well.

On my AMD processor stuff I also disable the spread spectrum, cool and quiet and all power saving options.  Never had luck with any of that stuff running on my MSI mobos...I also had to tweak a few voltages here and there.

I have an MSI board. You can disable 2.2TB Infinity or whatever it's called. You can also disable the splash screen (which I have also done, so I don't see the MSI logo anymore).

How many video cards are hooked up? Does your motherboard have onboard video? Try these two things:

1. Boot up with only minimal amount of hardware plugged in. So remove all unnecessary video cards, and use the onboard video if that is available. Remove any USB devices, hubs, etc, except for the USB stick you are booting from.
2. Have you hooked up the proper power cables to all PCIe devices? And hooked up all the power cables to the motherboard? My MSI board has three different cables going from the PSU to the motherboard.
4. If you have a dvd drive, try burning a bootable OS install disk and boot from that drive (with all USB devices unplugged).
4. Try a different boot disk. One that is known to work on another system.

Great.  I have mine in the garage as well as it kind of sounds like a jet plane taking off.  Keep an eye on the thermals along with the ambient temp (I bought a cheap USB thermometer and track the ambient temp so I can see how well the internal temp tracks).

UPDATE: I threw in the Linux towel, bit the MS bullet and bought a copy of Win 7 (upgrade).  After quite a few more roadblocks (that I spared you all from reading about!  ), I'm proud to say that I'm up and running with GUIminer at around ~920MH/s.  That's with 3 x 6950s overclocked to max that CCC will allow.  Cooling is an issue - as someone pointed out before.  I have the side of the HAF X case removed and a 'room' fan blowing directly on those 3 little furnaces.  After MUCH playing around with the config, I have the cards spaced so that there is a 'gap' between all (three) of them (I don't have any risers).  The extra breathing room means no Crossfire - but I didn't see a huge difference with that running anyway.  Plus, with no gap/space between the cards temp QUICKLY pegged in the 90C range for the card with the 'blocked' cooler fan.   Currently, they're running around 80-83C (in the garage).  It is supposed to get hot (weather) this week - so we'll see what happens.

My next goal is to learn more about unlocking the shaders(?)... I would love to crack 1GH/s with this rig.  From what I've read, I should be able to, but right now I'm just happy that the thing is working. 

Did you try without PCI extender risers?   I just a 5 hour headache trying to fix a linux system when it turns out it was just the risers not working with a specific motherboard.  Pretty terrible as it has 7 PCI express slots.

I just tried (after reading your post.  It looks like it only supports Win 7.  I tried it anyway, and install failed on XP.   

Have you installed the APP SDK? http://developer.amd.com/sdks/amdappsdk/pages/default.aspx

BTW - what mobos are people running Ubuntu on?  This board came HIGHLY recommended (from this site), and it seemed most folks here were using Linux (that could be an incorrect assumption).  Just planning ahead for the next rig...