Summer is quickly approaching..

Last year was a nightmare for cooling, but I managed to deal with 100 degree temps and no AC, I'm sure if I get my airflow refined, I can have even less problems.

We have two walls of rigs, each has a plywood wall constructed with holes cut where the shelves sit for exhaust flow. Behind each wall is the outside structural wall with windows removed, and attic fans fixed inside sucking air out of the room. This works pretty good.

I want to install two or three ceiling fans to either intake or exhaust air, but I'm not sure which is better. I know hot air rises, but with exhaust blowing out the side of the building, it makes it impossible to have rainy weather blow in.

If I change to exhaust out the top, then how do I prevent rain coming in the intakes? I will go take pictures today and upload a better view of what I'm dealing with.

Hopefully I'll get it figured out with the community's help, and help a bunch of people here by posting results

---

---

I gave up and moved the 4th miner to my farm facility.

any ideas for future problems would be great though

i had a problem with a string of asics giving X's.

I changed the frequency from 600 to 550

it worked, once stable, slowly increased back to 600.

stable 2 days now

I have tried the offending unit by its self and works fine.

I have no idea why this is happening. I know it's an Ethernet problem.

It can't be a duplicate IP.
I reset all my router settings so I'm pretty sure my dhcp server isn't messed up. I haven't checked the mac addresses, with my luck that could be what's up, also the port speed thing, but I have no idea how to fix that

---

---

I had initially tried doing that but immediately ran into problems. I was scared and thought I would never figure out how to get them back up. But then one at a time I used the IP report button to reset, and was able to confirm they all work fine independently but connecting one at a time results in 3 working great,  then the 4th will respond to stuff but then drop off entirely until I turn off one or more antminers.

What gets me is if I power off the eth rigs attached to the network, I get the same result, so it's not like a maximum device problem of traffic problem.

They all have different IP's so it's not an IP conflict.

I'm so confused.

---

I can get it to respond for about 60 seconds after resetting via IP report button.

Bitmaintech.com pings 50% packet loss and traceroute fails with "Ajax error"..

After a minute or two it stops responding to any attempt to sign in on a web browser. IDK what I should do. Maybe I have some hardcore network problems?

I tried both methods of resetting to factory defaults and now the IP of both my T9s won't show up.. No normal status led and no fault led. I had them each running independently then I powered them off to set them up permanently. They wouldn't show on my network anymore.

I don't usually post because I use the search function often, and I usually always figure it out.

Is anyone else having problems?
Does this sound like I've screwed up my networking somehow?

NAAAAAAH, you must not know much about electronics. if they have ran 3 years they are good, probably wont die, just do semi annual maintenance replacing thermal compound and cleaning the card every week to save the fans. BUT thats not even what I was saying.

buy cards that have been used for gaming. there isnt a shortage on ebay and you can tell if they used it for mining when you receive it. Ive sent two back, but then i just started using them even if they were mined on. The fans are the only thing that go bad usually. AND a dead card is worth 100 bucks resale.
I stick to my position.

Oh and 300w is ridiculous when you undervolt and underclock. As for dual mining it works great. recent updates have almost no effect on eth hashrate. I checked my lbc payments and there is a negligible power difference on r9's running dual, and the future of the coin is good, hold, dont dump. yeah it wont compete with asics, but its something on the side.

also what asic is doing lbc? holy crap i knew obelisk has a DCR miner and i have a couple SC miners..but lbc too? or is that the same algo?

Anyone seen the pool stats? Im getting half the payouts today on siamining. Anyone getting good payouts in nano or elsewhere?

Edit, found the link in previous page about updated pool stats, the website I used had bad info.

Yeah that's not a good roi. Underclock and under volt a set of 6  used r9 290x. Mem clock to 1160 and you'll be at aboit 1100w. Mine eth and lbry. Sell your coin and buy zcash if in the end you want zcash. You'll spend about 2100 on the cards. Profit should be about 400 a month, double what you have priced. Take that extra cash and buy a steak every week while you sit back and smile at you acct value

Just checked why my payouts went to half, looks like siamining has 250Th while the closest other two have 45 ish Th. I'm switching to strengthen the network. What do you think?

I found out why I was getting weird hashrate, I forgot to add the argument of -dcoin lbry. Everything shows correctly now.

I have one rig showing 800mh/s lbry on a 290x windows 10

Any idea why this is 10x faster than all my 290xs running on other machines?

Using Claymore dual 10.1

I have one rig showing 850mh/s on lbry
290x win10 17.7 drivers

Other rigs running 8.1 or 7 show 85mh/s
290x win 7 16.9 drivers

Is it the drivers or the os? Is the high hashrate not indicating correct?

That's utter nonsense. I hate to say it that way but the way you state it is like scripture. I have a farm running on something you say isn't possible.

Lol, I run kabbylake only, and msi z170a sli plus. I have 8 of those puppies running 5 gpu each. You may have problems with 6.

I tried my one skylake CPU and wanted to get 6 but it won't go for me. I've tried disabling everything, from audio and lan to disabling the com ports. I can't get past a windows error 12 or whatever--the system resource one.

Also, I have rigs running 470s 480s 290s and 1070s.

Msi z270a/z170a has no problem running 5 gpu regardless of the CPU or generation of card.

Nah I'm on a phone. After I realized computers are really miners, I don't use them for really anything other than mining. Haha

I have to make something because I'm on a trip to the hardware store right now for another shutter fan for the miners. It would be easier if all my gpu's had duct hookups, I could just put a new exhaust fan in the roof for every 4 rigs and be way more comfortable with the costs and not needing to rearrange and direct air to prevent one exhaust overpowering the other..

I think I klimaxed

I'm up to about 29kW and about to double. I guess there just aren't a whole bunch of us out there going as big as possible.

Yes you can get risers cheaper, but I buy from someone who tests them and I'm guaranteed a working lot, and it ships in a week. I've bought cheap ones and had 2 of 10 that were soldered bad. I don't have time to plan and coordinate my orders and shipments further than a week. I also don't have time to wait on parts, so 15 is what I pay.

And yeah I do have a cleaning schedule, I clean one rig twice a week.

It's the heat that gets recirculated that causes me issues. If everything was sealed it would control heat much better.

When it reaches 100F here I run into gpu throttling issues and I have to check cards one by one until I find the one who's settings have defaulted.. It's tedious and it's difficult to see when a worker drops only 10 to 15 hashes. The other day I noticed one rig was running at 120 instead of 144 because two cards were throttled and i hadn't caught it in weeks.

I'm working on a prototype, my mock up is a newegg box and an msi lightning. I'll share pics soon.

Hi, I don't post much, it seems like all the information I need and my commentary is already posted by someone else.

I am wanting to develop a product to help all altcoin gpu miners who run small to medium sized farms.

Summer is here again, and I am sick of constantly needing to find cooling solutions for my farms. I pay up to 15 dollars per pcie riser and mess around with building frames for hours when I build a new rig. Still, that rig needs special cooling when it's sat down on a self with 6 other rigs, which involves external fans, and baffles for airflow, which is more time and money.

I want to build a modular, expandable (from 1 to 10) gpu adapter and cooling box with powered intake and exhaust fans and hookups for intake and exhaust ducts. I don't want to reinvent the wheel here but I cannot find a retailer that has anything close to what I want.

I'm hoping to keep the cost down to around 50 dollars per adapter, but it will enable people to set their miners in better arrangements and cope with 90+ F temps.

Does anyone else have a need for something like this or am I alone in summertime heat problems?

What should I try to sell them at?

Don't ever mix more than one PSU on a single piece of equipment!

Also, the 8 pin CPU power is 4 ground 4 hot, the 8 pin pcie is 3 hot 5 ground, they are not interchangable.

 It's OK to have three cards and the mobo powered from one and two cards and the HDD powered by the second PSU, but never use two PSU for one card.

12v transformers in a psu put off slightly different outputs and use a ground connection unique to that transformers output. If you give a device two different ground connections then all hell can break loose