Have you tried minera?

Yes, but it is a pain to setup and not recommended.  It's much easier to have them in separate windows.

Hi, this is 20 blades. Each blade has 2 physical usb devices so it shows as 40 in cgminer/bfgminer.

is it possible to run one instance of cgminer with both 5chip and 40chip gridseeds?

I am really curious to know and would be great if you can

Here we go for the list

Hardware and related used

I don't work with magnifying glasses, but with headlamp. If yo do need a lots of contrast like me, this one is really nice and throws loads of light and is cheap. Maybe cheaper on some other places.

http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=290990217612&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

small tweezers will help for placing the smd too, something like these ones.
http://www.ebay.fr/itm/6PCS-Brucelles-Pincette-Pince-Tweezers-Antistatique-Metal-Courbe-Rond-Droit-/121204738469?pt=FR_YO_MaisonJardin_Outils_OutilsaMain&hash=item1c385d89a5[/b]]http://www.ebay.fr/itm/6PCS-Brucelles-Pincette-Pince-Tweezers-Antistatique-Metal-Courbe-Rond-Droit-/121204738469?pt=FR_YO_MaisonJardin_Outils_OutilsaMain&hash=item1c385d89a5

Soldering paste ZJ-18 one of the best cheap ones I tried so far.
http://www.ebay.fr/itm/Welding-Soldering-Iron-Solder-Flux-Paste-ZJ-18-50g-Wax-/220645967363?pt=UK_Home_Garden_PowerTools_SM&hash=item335f864603

Soldering station
Aoyue 937+ very good not so expensive one

Hot air rework station
BAKKU 858D
Cheap, but does the job.
My settings aren't the best ones, but they do work:
450°C (I know, it's way too high, but it allows me to work very fast)
Don't run the fan too high. 1 or 2 is enough most of the time. 5 will blow the 0402 and most of the 0603 SMD components off the board. Did I say not to go up to 8?

Standard mod
Resistors 0603 size 39k recommended, 43k is hardcore and dangerous, I'm running 44.2k.
can be found at mouser, farnell...

Heatsinks for cooling the mosfets under the PCB
37x37x15mm
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=261310293222&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
or 37x37x24mm (still waiting for them 5 weeks after puchase...)
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=310945950478&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

small heatsinks for cooling the mosfets on the top side
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=251251434021&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Optional improvements

Replace the power plug with a screw terminal, 5mm pitch
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=400667113340&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
I had to slightly bend the pins of the terminal and drill the stock holes to 1.1mm

Replace ferrite beads with 0 ohm resistors, 1206 size
Axial ferrite beads might be better for safety, or resettable fuses. I ordered some and will test.

Replace Mosfets with new ones
Upper gate -> CSD16321Q5C one for each PCB unless you have the latest ones with an empty mosfet pad that you can populate.
http://www.mouser.fr/ProductDetail/Texas-Instruments/CSD16321Q5C/?qs=/qzd9s%252bcLd6BJ6oSO2jYyA==
TO-220 package IRFB7437 will also work with a nice AAVID thermaloy HF20 heatsink
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=360922735855&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Lower gate -> CSD17556Q5B you will need 2 of them on each PCB
http://www.mouser.fr/ProductDetail/Texas-Instruments/CSD17556Q5B/?qs=%2fha2pyFadujmDrK04JvA9%2fUT5iDlW7l0ImBsWKDB2WI%3d

add heatsinks on the GC3355 chips will help getting lower HW errors.
same one used on the mosfets


Optional wide body mod

Scythe ultrakaze 130CFM fan
You will need to figure a way to attach it to the blade. I glued some 15mm M3 spacers at appropriate place to be able to screw it.

25mm PCB standoff / spacers to make the original ones higher
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=281207608483&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Custom cut PVC cards to close the gap between the 2 halves of the blade size 220x120x3mm
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=261480101060&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649


My recommended power supply (I currently own 15 of those at home, counting a few spare ones)

Server power supply, 1300watt if powered with 220-230V

HP DL580 G3 / ML570 G3 power supply 364360-001 / 337867-001 337867-501 AA23530
Quite easy to mod, reliable, not too expensive, powerful, but loud as a vacuum cleaner.

I'll do it this afternoon when I'll go on the computer. Too hard to do with the phone.

Will anyone possibly link some of the parts you purchased to volt mod your g-blades in this thread?

post some pictures

GER Coined Failed.

Great service
Where can we find examples of coins created by the coin lab?