Hitting blocks is a necessity, but not to be viewed as the sole component governing a successful mining operation.  BTC price, difficulty, power costs, and even the international political climate are all significant components to the bottom line.  Some of these are predictable - even "calculatable" - until they're not.

Not worth to deal with such a headache. Estimated TAX for EU to be paid is around 1200$ extra. So in total 4800$. This is a regular selling price in the market right now.

what is your bios version number ?

JUST LIKE I SAID EARLIER ... IF YOUR COMPUTER IS WORKING FINE WITH ORIGINAL BIOSES FLASHED BACK TO YOUR VGA CARDS , AND NOT WORKING , GIVE YOU ERRORS WITH FLASHED BIOS , YOUR MOTHERBOARD IS FINE.

USE UR BRAIN :
3 CRADS ORIGINAL BIOS EVERYTHING FINE
3 CARDS MODDED BIOS ERRORS

WHERE CAN BE A PROBLEM

I think you have no idea about how properly overclocking , undervolting your cards , modding your bios ...
I think you se this numbers somewhere " -cclock 1150 -mclock 2050 -cvddc 900 -mvddc 900" that is why you using it , but you never fine tuned your cards ...
You dowloaded the bios from the internet.
The dowloaded bios version is the same as you had on all of your cards ?
what bios version you originally have ? and what the bios version what you dowloaded ?
WAHT IS THE ASIC QUALITY OF YOUR CARDS

can not be your motherboard bios , if your computer is mining fine with original vga bioses.
THERE is the latest bios for your motherboard

Did you modded your own bios ?
"stuck in device driver" - this error can be a reasult of a inproper overclocking .
flash your bioses with only mem strap mod , then play with a frequency/voltage settings .

those voltages might be to low for your cards and working fine for somebody else cards every cards are different. What is the ASIC quality for your cards ?

have you set the page file for 16GB or larger ?

Have you used DDU to remove all of the drivers and do a fresh driver install?

I got the thread stuck in device driver message...

 Was using latest version risers, but they only had 3 capacitors and 1 chip on the board and were powered via a SATA connector. On a whim I moved to boards with 4 caps and 2 chips (and a POT?) on the board with 6 pin power and everything was stable. Beat my head against a wall for 3 days on that one. Same issue, I could get two...sometimes 3 working, but when I tried to get cards 4 and 5 up, it would knock me back to only seeing 2 of the cards. YMMV

there are several reason for the crash, what drivers are you using? overclocking downclocking are you using?  Check the 3-rd riser is working alone, give some more info to analise?

so with the original bios your system is working fine , but with modded bios is crashing ?

it's been over 26 hours since I switched my S9 to kano.is and still don't see any information on the rewards page.

Hello,

I'm really not sure if this is the smartest move or not. I've an L3+ and an S9 both in hand, both terrifying my neighbours.

And I have another L3+ Dec & S9 Jan.

The L3+ is absolutly killing it now on prohashing- $24 made yest, It has been overclocked to 431mh and is hashing at 564M/H

with the fans at 3720 and 3690 %2.8 Hardware errors.

I'm moving all my miners so the homocidel neighbours won't be an issue - but the £550 import duties due at the end of the month needing an
plus extra PSU (This sale does not include a PSU - possibly could actually if you needed one to get mining straight away, would need to be factored into the price tho - I have 2 APW3+++'s one with enough pins for 2 L3+'s one with 10 pins)

But yeah I ran up my credit card, I'm dating, It's Christmas, blah bla, need money lol.

I just went all in getting 4 miners, didn't factor in all the extra cost's, and now I am seriously considering that I would part with one for a fat wedge of stinking fiat.

L3+'s & S9's are going for big money on eBay. However £250 of the top and 3.7% PayCunt fees, plus the thought of someone doing a chargeback after mining for 2 weeks at 650mh/s and claiming its faulty makes me quesy.

So maybe I'll get a better deal here. Cash on collection would def be the prefered option, direct (UK) bank transfer second choice. BTC 3rd

They are all mining, if call round you can see the stats, if you can't ask for any photos you wish (except serial number- or maybe serial number, not sure if that matters??) you can look through the stats, they are 100%.

However fully insured priority postage - Royal Mail or UPS is also an option and if we make a deal, no dicking about on my side, I'll have it in the post same working day in it's original box.

Having never sold anything of this value through here (never sold anything on here!) I would really appreciate advice on Bitcointalk forum escrow. I so so so can't afford to get screwed. If I do get a reasonable offer on one or the other and you do try to screw me please know- If you are looking for a free mininer I can tell you I don't have money, but what I do have are a very particular set of skills. Skills I have acquired over a very long career. Skills that make me a nightmare for people like you. If you let my miner go now that'll be the end of it.

Realistic offers please. It is the £'s I'm after so if an offer is made in crypto please take into account all the fees that are involved flipping that. (And could someone alsotell me how to do it!)

These are not pre-orders, they are in hand paid for when BCC was around the $350 mark. Also I've read a lot about people laughing at eBay prices but those are sales, I'm happyto absorb the £250 fees and 3.7% commission and (I've not checked yet but will soon) whatever fees 100% trusted escow sellers ask on here 50/50

If the item needs posted you will need to pay that. I will get 2 estimates with full insurance from Royal Mail and UPS along with as close as possible eta times. Maybe not great for US buyers - I'm pretty sure there is tax and I'm not going to under declare the amount. EU will be fine though. Also if there is a buyer in Ireland I'm pretty much prepared to drive halfway to a town and conduct the transaction in a bank - Euro's are grand. Another option is if a buyer is in Ireland without transport I'm happy to deliver after we have had a skype chat, you show me the cash and add me on facebook.

Thanks,

And please ask questions,

Kind Regards

Dr Octagon

Edited *EU should be fine to EU will be fine. Still in the single market for now! I also added that a PSU could be available but would need priced in as I would have to get a new one later in the month. Also added info regarding travelling to meet in a bank to conduct the deal within the Island of Ireland.

did you use escrow? if not you can say bye bye to your money sadly...

I am going to ask for $2100 in BTC or ETH shipped. I know I am brand new here so I am happy to use a well known/repped escrow, you will pay the escrow fee.