Have you tried mining it?

I updated my post, please have another look.

Both two R4 units ended up being sent to MyRig,
and they were able to fix only one R4..

Well I found out that,

Bitmain can not repair R4 miners. They say they don't have spare parts anymore.
Which sucks, in my opinion.

The only place to repair these is MyRig.

Or you can send the boards to me for repair. I've been doing this on Avalons, Titans, and S7's for awhile now, and I've seen some poor attempts to do it which don't end well.

If you want me to fix bad connectors, drop me a PM and pack the boards in bubble wrap.

And since I believe information should be free and the skill of work be paid for, here are some tips on how to do it:

You have to get a pre-heater. Aoyue 853+ or better at minimum. Don't use a super big soldering iron, you will just burn the vias before you remove the part.

Cut the back three prongs on the connector before you start. That way you are removing them one at a time, not six at once.

And the super magic secret: Tin the leads with lead/rosin solder. This will lower the melting point of the crap ROHS solder a *lot* and make removal easier.

Use very good flux. Flux cleans connections and transfers heat.

Once off..../////

Btw, I recently bought two faulty R4s in Ebay to see if I can fix them and after I noticed I'm not able to fix them with my equipment, I sent them to paid repair service (out-of-warranty repair service).

I have sent one R4 to Bitmain in Hong Kong and I have sent the another one R4  to MyRig in Denver, CO, USA.
In a e-mail discussion Bitmain said to me that "We have not produced or supported the R4 in a long time. If you need repair please try our out of repair agent in the US. They carry parts for older machines and may be able to repair. Please check with them."

I didn't know this prior sending one R4 unit to Bitmain in Hong Kong.

But I should have remembered that there was this whole replacement process with T9s and S9s for guys with a faulty R4 unit..

Let's see how this turns out.  

and that, if this will help, here to say something else! It is not the first time that this error occurs such as "reject reason: bad-cb-height"! I use 2 pc, and on both computers periodically appeared this message, ie. report "reject reason: bad-cb-height", meaning sometimes, once in a day, or 2-3 times, not more! I thought it all happened this, but no one anything about it not written here, and i did not want to look stupid! If even a sometimes happened this mistake before, let him say now, so we know! Well i hope i was helpful ...

Any news on that one... It is now over 2 years...

my payment didnt turn up - was my hashing processed? all seems right on my end apart from lack of deposit

Greetings Eligius miners,

Apologies for the lack of updates here.  I've been unexpectedly and extraordinarily busy with matters that have taken precedence over my efforts here.  Suffice it to say I've not been home and haven't had access to my desk, offline wallets, etc for a little while.

I don't have a lot of time to detail anything right now, but I'm alive and well, and I intend to continue my work on Eligius.

I've done a manual payout for all work submitted since the last block the pool found in transaction da621d666b99b56392347a20aedde0e8e1fdf98909c904f87478ebe9b5b45c12.

It's 4AM my time, and I'm really squeezing this work in right now... but I'll be back with a more detailed update soon.

Thanks for sticking with it!

-wk

Good news!

There are two forks of p2pool running, each with about 2.5PH last I looked.

P2Pool?

Iuntil you have answers, Well may I suggest going to ckpool.org its a new pool check it out

Well that sucks. His account here shows that he was logged in yesterday, but he really seems to have stopped responding to everyone.

Hope he is OK.

-Dave

I really like Eligus but seems we cannot get paid until the upgrades are finished, I can wait.  Currently mining with AntPool (PPLNS), get paid for every .001 BTC, works for me...