Bitcoin Forum

Hello, I am selling custom built mining rigs. They are setup with 6x Radeon 6950.  They have windows 7 professional, 40gb sata hard drive, 4gb ddr3 and use ultra efficient 25watt dual core cpus. They use a corsair 850watt power supply for the motherboard and the pcie. They use a 1570 watt dell server power supply for all of the 6pin connectors. Will sell for $2600ea.  Currently have 3 on hand.  Will have more built over the next few days.

I ship them at stock settings and they run at 24-2600khs.  They can hash faster if overclocked and shader unlocked.

Hosting and maintenance is available for $160 per month

http://s22.postimg.org/dxt7kjlw1/20140108_020740.jpg
http://s28.postimg.org/mt4ne73r1/20140108_020732.jpg

Very neat... Hell of a lot tidier than my rigs! Good luck bud!  :)

Pm sent.

where in the world are you?

Good ole USA

hmm, doesn't make shipping to the UK seem ideal.. thanks anyway

Hosting is an option.  I am not charging much more than you would pay for the electricity and the air conditioning.

I disagree.  You are charging way more than $0.00.

Do they all have mismatched GPU brands?

shit man good catch

Possible learning moment for me and free bump to the OP:  What does it matter if the GPUs are mix-matched?  Should just be a matter of performance?  Or.. was the question just to clarify on the specifics of the product advertised?

1. It doesn't look pretty.
2. Different cards have different quality and grade of parts/chips/etc. Mixing them and running at the same speed can give mixed/strange/full moon type results in rare cases.
3. Why would you do that.
4. Cooling is difficult to regulate with different cards.

Each manufacturers card and model will run at a different set of clock/mem/thread/etc with different stability and heat results.  Tuning and re-tuning these rigs would take three times as long.   

Most importantly #3.

I have a wide assortment of cards, I could probably setup 4-5 machines that have all the same exact cards.  I have never had an issue with the miss matched cards, although you did say rare cases.  Never had any issue with cooling either, they all run between 72-76.  The simple answer to number 3 is availability, they all hash about the same.

would you be willing to do the case no motherboard etc just cases?

The aluminum frames? Yeah I could sell just the frames,  I don't have enough material on hand to make an extra frame right now, I only keep enough material on hand for what I have gpus for, but I could have 20-30 ready by the end of next week.  I could sell just frames with the studs for the motherboad and screws for around $90, shipping to usa included.

I understand safety margin but still this seems a little overkill is it not? Ignoring non-GPU components that's ~400W per GPU.

Also, how efficient is the Dell PSU, as in how much do these draw from the wall?

1224 watts at the wall for the whole machine.  Yes they are oversized.  I wouldn't build a machine for someone else that wouldn't be good enough for me.  Oversizing the power supplies makes them last longer and they run more efficiently.

As for the efficiency of the dell supply, It is in the 90% +

It has nothing to do with safety, It is about efficiency.  Loading a power supply over 80% capacity reduces efficiency by 10-20%

I'm getting 2.1 mh/s from three r9 cards and I put it all in a server case. no custom building case. anyone else doing this?

cost of shipping to Texas? Are these all new parts? cards etc?

Don't care about #1, #2 rare cases, #3 he's a repair guy, I wouldn't be surprised if some of these cards are refurb/used which wouldn't bother me but should probably be specified, #4 cooling is always a concern and there are many ways to manage.

for the OP, thx for the service you provide.  you said the $90 for just the case/frame is the cost shipped in the USA?  Does that include Alaska?  If so... damn, wish I would have waited before I embarked on my PVC project.  But I'll def keep you in mind perhaps for future projects.  Mind me asking where you get your aluminum and interconnects? 

i enquire pictures of this

Nice rigs wish I had the cash.

What price is this going for as I'm not sure if the hosting charge is separate or not from the price of the rig?Thanks as I thought maybe you should clarify this to potential buyers. :)

Could you make the frames rack mountable?

Measurements etc for mounting brackets and holes: http://en.wikipedia.org/wiki/19-inch_rack

http://
My rig gets 2.1 - 2.5 mh/s with three r9 cards. I have one removed right now until a riser comes so I can extend it out some to help with heat passing from one card to the next.
- Liquid Cooled processor
- 16 gb ram
- 8 core processor
- 3 r9 cards
- 6 fans
- 1000 watt, smart psu
- 1 gigabit network connection
- dvd / cd burner / player
- top of case has LED lights that you can change colors and blink style
^{I'd be willing to sell for BTC if the offer was right, we could use escrow from trusted forum member - I paid 3k for all the parts}

http://ebay.vnenterprises.com/bitcoin/rig.jpg

The cards are new or manufacturer refurbished.

I can and have repaired graphics cards, but there is no source for broken ones.  People overclock them until they puke and they cant be fixed.  Normal problems are repairable like when the card just quits working for no reason, but when they overclock the gpu and overheats and ruins the gpu processor they are done for.  There are too many dishonest people that ruin it for everyone falsely advertising the card they know they ruined as "just stopped working".

The aluminum tubing I purchase from the welding shop down town.  He doesn't stock it but if I need some he will order it for me and it comes on the delivery truck every other week.

The plastic corner fittings I purchase from a sign shop.  I guess they use that kind of stuff for portable signs.

The rig is $2600.  When you buy it, I can ship it to you or host it for you for $160 per month.

UPS ground is included in the price. 

The cards are new or mfg refurbished.
The motherboards are new or mfg refurbished
The main power supplies are new.
The server power supplies are used.
The CPU's are new.
The Ram is new.
The Hard Drives are all Mfg refurbished.