Topic: Building Cheap Miners : My "Secret" - page 12. (Read 60235 times)
I am working in IT and that means lot of spare computers and free electricity. Setup two HP Elitebook 800 pcs with rx580 and yes keep it running until the GPU dies.
https://www.newegg.com/Product/Product.aspx?Item=N82E16814932012
1070Ti for $479.99 -- no QTY limit.
I grabbed a dozen of them this morning.
Before everything went nuts back in December a good price was only $10 less than that... so not too bad!
1070Ti for $479.99 -- no QTY limit.
I grabbed a dozen of them this morning.
Before everything went nuts back in December a good price was only $10 less than that... so not too bad!
Profits were a lot higher back then too, though...
Hi Sundownz,
I have purchased the cable you recommended, however unfortunately I still get the same red light and “beep, beep” noise.
Is there anything you can suggest that I might be missing?
I have purchased the cable you recommended, however unfortunately I still get the same red light and “beep, beep” noise.
Is there anything you can suggest that I might be missing?
Finally got some air-flow in the mining area of my warehouse.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
I am garage mining here in the Dallas area and am interested in the ambient temperatures your miners are seeing at the high peak of the day. That usually is around 5-6 PM.
I have a full house attic fan in the garage that exhausts the heat from the garage ceiling into the attic which has ridge vents for the attic heat to escape. Currently the garage door is opened about 4" to let in cooler air. That cooler air is getting hot now that summer is approaching such that at the peak of the day I am seeing 95 degrees at the intake to the R815 servers. They seem to be running okay but of course the fans are spinning very fast.
If possible could you supply the ambient temperatures at your rigs that are in the hottest area at the high peak of the day.
I have on order four WindeeVents that I will put into the garage door so I can keep it closed yet have air intakes. https://windeevent.com.
Yes I will take and share some temp readings when I get back in there after the weekend =)
Here we go :
** 2:20 PM EST ambient air is 81.3 F -- outside is 75 F right now.
** 2:20 PM EST the metal grate on the R815 is ~96-97 F
Thanks
I just ordered a HoldPeak HP-866B that you are using. Looks like a great device for temperature and air speed testing.
Hello, I am more interested in your published comparison. How about the daily income? How long can the investment money recover my principal?
Finally got some air-flow in the mining area of my warehouse.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
I am garage mining here in the Dallas area and am interested in the ambient temperatures your miners are seeing at the high peak of the day. That usually is around 5-6 PM.
I have a full house attic fan in the garage that exhausts the heat from the garage ceiling into the attic which has ridge vents for the attic heat to escape. Currently the garage door is opened about 4" to let in cooler air. That cooler air is getting hot now that summer is approaching such that at the peak of the day I am seeing 95 degrees at the intake to the R815 servers. They seem to be running okay but of course the fans are spinning very fast.
If possible could you supply the ambient temperatures at your rigs that are in the hottest area at the high peak of the day.
I have on order four WindeeVents that I will put into the garage door so I can keep it closed yet have air intakes. https://windeevent.com.
Yes I will take and share some temp readings when I get back in there after the weekend =)
Here we go :
** 2:20 PM EST ambient air is 81.3 F -- outside is 75 F right now.
** 2:20 PM EST the metal grate on the R815 is ~96-97 F
https://www.newegg.com/Product/Product.aspx?Item=N82E16814932012
1070Ti for $479.99 -- no QTY limit.
I grabbed a dozen of them this morning.
Before everything went nuts back in December a good price was only $10 less than that... so not too bad!
1070Ti for $479.99 -- no QTY limit.
I grabbed a dozen of them this morning.
Before everything went nuts back in December a good price was only $10 less than that... so not too bad!
Thanks for the info sundownz - you're a champion.
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
Wow nice project mining man,.. i hope some day can do it like you 
. And i think that configuration good for low cost, and as far as i know your hardware especially your mother board is very cheap and good product.
And thank you for your post/tutorial.
. And i think that configuration good for low cost, and as far as i know your hardware especially your mother board is very cheap and good product.And thank you for your post/tutorial.
You are welcome -- glad my post could help.
Finally got some air-flow in the mining area of my warehouse.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
I am garage mining here in the Dallas area and am interested in the ambient temperatures your miners are seeing at the high peak of the day. That usually is around 5-6 PM.
I have a full house attic fan in the garage that exhausts the heat from the garage ceiling into the attic which has ridge vents for the attic heat to escape. Currently the garage door is opened about 4" to let in cooler air. That cooler air is getting hot now that summer is approaching such that at the peak of the day I am seeing 95 degrees at the intake to the R815 servers. They seem to be running okay but of course the fans are spinning very fast.
If possible could you supply the ambient temperatures at your rigs that are in the hottest area at the high peak of the day.
I have on order four WindeeVents that I will put into the garage door so I can keep it closed yet have air intakes. https://windeevent.com.
Yes I will take and share some temp readings when I get back in there after the weekend =)
-----
On another topic -- I did consider re-pasting all the heat-sinks of my R815s... I did take one heat-sink off out of curiosity and the paste was like hardened mud or something... definitely past it's useful life-span.
Before I go crazy and do them all I need to see if I can monitor the temps in UBUNTU and do a before / after one just one machine.
Thanks for the info sundownz - you're a champion.
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
That 'expert' should then be liable in refunding you if either the Power Supply and/or the motherboard is now bad.
Thanks for the info sundownz - you're a champion.
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
The hope so too MinersRus. I just assumed that as the plug fit it would be compatible. The 'expert' in the shop who sold me the PSU also told me it would definitely be compatible with the XW4600
Wow nice project mining man,.. i hope some day can do it like you . And i think that configuration good for low cost, and as far as i know your hardware especially your mother board is very cheap and good product.
And thank you for your post/tutorial.
. And i think that configuration good for low cost, and as far as i know your hardware especially your mother board is very cheap and good product.And thank you for your post/tutorial.
Finally got some air-flow in the mining area of my warehouse.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
I am garage mining here in the Dallas area and am interested in the ambient temperatures your miners are seeing at the high peak of the day. That usually is around 5-6 PM.
I have a full house attic fan in the garage that exhausts the heat from the garage ceiling into the attic which has ridge vents for the attic heat to escape. Currently the garage door is opened about 4" to let in cooler air. That cooler air is getting hot now that summer is approaching such that at the peak of the day I am seeing 95 degrees at the intake to the R815 servers. They seem to be running okay but of course the fans are spinning very fast.
If possible could you supply the ambient temperatures at your rigs that are in the hottest area at the high peak of the day.
I have on order four WindeeVents that I will put into the garage door so I can keep it closed yet have air intakes. https://windeevent.com.
Hi guys,
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
I hope you didn't do permanent damage to either the HP XW4600 motherboard or the EVGA Supernova G3 750W power supply.
This link shows the differences between a standard ATX power supply and the proprietary HP power supply.
https://forum.level1techs.com/t/modding-a-desktop-psu-need-smart-peoples-help/98703
By attaching the EVGA Supernova G3 750W power supply to the HP XW4600 motherboard and Powering ON this is what happened:
You essentially shorted the +12, +5 and +3.3 power from the EVGA Supernova G3 750W power supply together because the HP XW4600 motherboard expects +12 Volts on pins 12 and 23. The ATX power supply has +3.3 on pin 12 and + 5 volts on pin 23.
Also the -5 volt line of the EVGA Supernova G3 750W power supply was shorted to ground because pin 20 on the motherboard is ground whereas pin 20 of the EVGA Supernova G3 750W power supply is -5 volts.
You need to test the HP XW4600 motherboard with it's original power supply to see if it still functions.
You also need to test the EVGA Supernova G3 750W power supply in some standard system that is compatible with an ATX power supply to verify that it also functions properly.
If they test out okay then buy the above mentioned cable to use the EVGA Supernova G3 750W power supply with the HP XW4600 motherboard.
Hi guys,
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
Absolutely -- that is the entire concept of this thread =)
Initially I was making my own adapters (see post #1) -- then adapters became readily available:
https://www.moddiy.com/products/ATX-to-HP-Z400-24%252dPin-Non%252dStandard-ATX-Pinout-Main-Power-Adapter-Cable.html
Hi guys,
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
I have an HP XW4600 that I'm trying to use as the basis for a 3 GPU mining rig. I have purchased an EVGA Supernova G3 750W PSU as the power supply. https://www.newegg.com/global/nz/Product/Product.aspx?
The PSU plugs into the motherboard correctly but the computer flashes a red light and gives a "beep, beep" when I press the on button. After doing a bit of research it looks like the HP motherboard uses proprietary power and isn't compatible with ATX power. Does anyone have any tips or has successfully got an ATX power supply to work with the HP proprietary motherboard?
Finally got some air-flow in the mining area of my warehouse.
5x 24" fans feeding in through existing openings... and 1x 42" fan feeding out through what used to be a window.
I may end up adding another 42" exhaust fan but I will have to knock out some block for that one.
After killing myself for the last 24 hours troubleshooting 2 r815's I picked up, I have learned a thing or two.
If the cover is not on the box, it will not produce full power. Board will limit CPU power evident by power drawn at plug and performance in hash. I chased my tail for quite a bit yesterday and today until I figured it out.
If the cover is not on the box, it will not produce full power. Board will limit CPU power evident by power drawn at plug and performance in hash. I chased my tail for quite a bit yesterday and today until I figured it out.
Thanks for this tip.
I got my feet wet and installed Ubuntu on a Dell R815 (4x Opteron 6234's). Then did all the updates, configurations and XMR-Stak Compile and it produces about 1560 H/s on the four processors and another 240 H/s on the single GTX 750 for a total of 1800 H/s.
On the second R815 with the exact same configuration I was only getting an initial 1200 H/s on the processors which dropped to 1050 H/s in a few hours. On this system the front display was orange and it was saying "system is powered but cover is off" or some such words. That reminded me of your post on the hash rate drop with the cover off.
The cover was on the system so I looked at the intrusion switch on Riser 2 and it turns out that the post on the switch was broken off so it was always telling the system that the cover was off even though it wasn't. I fixed it with a tie-down keeping the switch always pressed.
Front display is now blue and processor hashes are now steady at about 1560 H/s.
For those interested in mining with GTX 750's here is an eBay link to what I am currently purchasing.
https://www.ebay.com/itm/ZOTAC-NVIDIA-GeForce-GTX-750-1-GB-GTX750-1GD5-Video-Card-128bit-DVI-HDMI-VGA/142732559955
These GTX 750's are Zotac branded, have the full double wide bracket (easier to attach to mining frames) and can be easily overclocked. I am getting around 245 H/s at 38.5 watts on these.
Another good thing is that these need no additional power cables as they get all their power from the PCIe slot. With the power draw being so low you can use risers that are powered with SATA to 6-pin cables.
https://www.ebay.com/itm/ZOTAC-NVIDIA-GeForce-GTX-750-1-GB-GTX750-1GD5-Video-Card-128bit-DVI-HDMI-VGA/142732559955
These GTX 750's are Zotac branded, have the full double wide bracket (easier to attach to mining frames) and can be easily overclocked. I am getting around 245 H/s at 38.5 watts on these.
Another good thing is that these need no additional power cables as they get all their power from the PCIe slot. With the power draw being so low you can use risers that are powered with SATA to 6-pin cables.
Would you mind posting a pic showing how you've set these up? I'm assuming you've mounted a mining case on top of the chassis. I've got one PCIe expansion card that I can use. The other system doesn't have one, but if I can set the first one up it shouldn't be a big deal to find another board.
Here are the pictures: https://drive.google.com/open?id=1U33Y79vH8k2JRHRRzP2ftPNUTMvhkk2m
This is the rack I am using: Whitmor 4 Tier Floor Shoe Rack - 20 Pair - Storage Organizer
https://www.amazon.com/gp/product/B005KC6DY0/ref=od_aui_detailpages00?ie=UTF8&psc=1
I haven't done this but if you need the rack shorter in width you should be able to use a hack-saw and shorten the metal horizontal rods.
Quote from: 4thKor
And do you think Linux Mint would work for an O/S?
If you want simple, quick and free mining then I would recommend HiveOS (free for up to three rigs): https://hiveos.farm
In the pictures you see two of my HP DL580 G7's with 8x GTX 750's (2 in case, 6 on mining rack) that are each mining 3.35 KH/s on HiveOS.
On my other Servers I have gone with Ubuntu but it is royal pain-in-the-butt to get it installed and configured properly. You will also have to compile XMR-Stak.
Quote from: 4thKor
The 750's are definitely cheap enough, but I'm also wondering about using 770's and 950's, of which I have several of sitting here collecting dust. Power usage on the 770's may be way out of line though.
The 770 do give more H/s but as you mentioned it uses a lot more power:
http://monerobenchmarks.info - enter gtx 770 in the search box
The GTX 950 seems to do a little better than the GTX 750 at a slight more power usage. So that would be a good choice since they are free as in unused gathering dust.
For those interested in mining with GTX 750's here is an eBay link to what I am currently purchasing.
https://www.ebay.com/itm/ZOTAC-NVIDIA-GeForce-GTX-750-1-GB-GTX750-1GD5-Video-Card-128bit-DVI-HDMI-VGA/142732559955
These GTX 750's are Zotac branded, have the full double wide bracket (easier to attach to mining frames) and can be easily overclocked. I am getting around 245 H/s at 38.5 watts on these.
Another good thing is that these need no additional power cables as they get all their power from the PCIe slot. With the power draw being so low you can use risers that are powered with SATA to 6-pin cables.
https://www.ebay.com/itm/ZOTAC-NVIDIA-GeForce-GTX-750-1-GB-GTX750-1GD5-Video-Card-128bit-DVI-HDMI-VGA/142732559955
These GTX 750's are Zotac branded, have the full double wide bracket (easier to attach to mining frames) and can be easily overclocked. I am getting around 245 H/s at 38.5 watts on these.
Another good thing is that these need no additional power cables as they get all their power from the PCIe slot. With the power draw being so low you can use risers that are powered with SATA to 6-pin cables.
Would you mind posting a pic showing how you've set these up? I'm assuming you've mounted a mining case on top of the chassis. I've got one PCIe expansion card that I can use. The other system doesn't have one, but if I can set the first one up it shouldn't be a big deal to find another board.
And do you think Linux Mint would work for an O/S?
The 750's are definitely cheap enough, but I'm also wondering about using 770's and 950's, of which I have several of sitting here collecting dust. Power usage on the 770's may be way out of line though.
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