Bitcoin Forum
July 01, 2024, 02:15:01 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 2 3 4 5 [6]
101  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 08, 2014, 12:49:27 AM
@Phil
you probably the best thing that happened to us hashfast users and I (and I bet others) would show my/their appreciation in coins if you post an address...

Regarding firmware / RMA, I pretty much had the same line of thought, to try new firmware first before going through the hassle of RMAing the board. So count me in if there is a release to test.

thanks

@edgie: Ah, I'm not alone. Does your cgminer 3.09hf2 also show double the actual hashrate with diff < 512?
102  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 08, 2014, 12:30:28 AM
@HF Engineer:
if you got a spare minute, do you have an idea what could cause this on my babyjet:

Code:
HFA 1: 77C/0.80V 73C/0.79V 66C/0.79V 51C/.82V
(note the low temps on the right)

Pool (eligius) reports only ~@250ghps from this babyjet. RPi image with cgminer 3.09hf2.
No errors in log, HW value low.
Checked screws, thermal paste, fans etc.

Much appreciated!
103  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 11:33:01 PM
mgio,

well that was my first thought so I looked at HW very early on, it doesn't seem excessively high:

Code:
A:8704 R:0 HW:17 WU:4175.2/m

after a couple mins @585mhz.

That looks very low. After a few minuntes my errors are up to the hundreds of thousands.
The WU number is low, though, which makes sense since that is directly proportional to your hashrate. Maybe you have some defective cores that aren't spewing out errors but just aren't working.

On the other hand if there is so many defective cores, why did it pass the burn-in at hashfast (if there was any)
Oh man, I wonder how long it will even take them to reply on my first message, let alone exchange the board.
104  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 09:12:32 PM
Well, hashfast has a proven track record of delivering stuff on time, no?

Does anybody know what the 2 buttons on the board are supposed to be for? I saw posts mentioning to press them, but not really what they do.
Reset?
105  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 09:01:32 PM
if they don't work at all, they maybe don't show up in a log. 84° on one and 60° on the other looks like somethings broken.

I'm starting to think so too...
106  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 08:14:46 PM
I think there's something wrong with your cooling system. Can you check if all screws on the cooling head are tight fit?
If you remove the top bezel the radiator blows off better.

I already did that Sad I also checked and reapplied thermal paste and did a visual check of the cores (nothing chipped off)
Also, all the fans are blowing in the correct direction. Temps didn't change after all that.

Really, I did read this entire thread beforehand and tried everything I could think of and nothing I did seem to change any behavior.
Also, the fact that 2 of my cores show 50-60° at 0.82V leads me to believe that they are not working at all or at a very very low rate.

Also I think it's weird I'm not seeing anything that points to a hardware problem in log.
107  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 07:03:42 PM
wow Rev 1.2 , I'm on Rev 1.1  make you wonder if this is PCB related . Still a word from Phil would be great.

Well, it's not like 1.2 brought me luck so far Smiley

Here's a screen shot, maybe somebody can spot whats wrong:


I'm a bit puzzled by the accepted share %age (~50%) Can somebody tell me why that value isn't higher? (something like total - rejected - HW)

108  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 06:34:47 PM

What Pool ? , I found that on P2pools the like coinex.pw it preforms at that range, gives a lot of errors from Pool submit errors to watchdog errors, so I have to stick to a BTC pool like , slush, Eligius , or similar. Don't know why the miner preforms slower , hmm  Phil might know why ( aka the HF Engineer that has been an excellent source for help).

I'm currently trying eligius and I'm getting around the same ghps there (~250ghps) so it's probably not the pools fault.
I also tried the 2nd set of PCI-E connectors from the PSU, no difference.

My board shows "REV 1.2" and cgminer 3.12 says "Update hashfast firmware to set fan speed" at start up. Is it possible I don't have the newest firmware?

I'm seriously questioning the cgminer release from hashfast. WU and ghps shows doubled when I use it (compared to the 3.12 on windows)
I'm wondering if they didn't just put
ghps = 2*ghps;
just to make it look good (?)
109  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 05:22:28 PM
mgio,

well that was my first thought so I looked at HW very early on, it doesn't seem excessively high:

Code:
A:8704 R:0 HW:17 WU:4175.2/m

after a couple mins @585mhz.
110  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 05:15:34 PM
CurcO, thanks again

I'm on bitminter.com.
I think the fact that 3.12 on windows shows the same value the pool shows means that the value with HF cgminer 3.09 on the rpi is probably wrong?

I also would like HF Engineer to comment on this Smiley
111  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 04:59:36 PM

You either need to change clock speeds, either OC or underclock use in cgminer "--hfa-hash-clock 600", I see from ex that the die's like to run over the 70-80 C , from your post you have one core in in the 51 C/.82V which tells me that core that is not working also you can see that the V is  high as to the nominal output in V is .79..

--hfa-hash-clock <arg> Set hashfast clock speed (default: 550)

CurcO thanks for your answer.

I found that
-using HF image on RPI with cgminer 3.09 -> cgminer says 490ghps
-using cgminer 3.12 on windows -> cgminer says 250ghps
-pool says 250ghps

I tried over/underclocking it in the range from 500-600mhz, underclocking makes it slower, overclocking makes it faster (max average I saw was 300ghps - far away from the 400+ other are getting)

Could it be an issue with PSU / connectors?
112  Bitcoin / Hardware / Re: HashFast BabyJet users thread on: February 07, 2014, 03:03:22 PM
I got my babyjet yesterday, and I'm having problems with it. It came very battered, screws falling out, front door broken.
Initially I was pleased, cause cgminer said it reaches ~490ghps.

But my pool only shows ~250ghps for the last 20 hours.

I believe I might have a damaged core or two, cause the temp section in cg miner reads like this:

Code:
HFA 1: 77C/0.80V 73C/0.79V 66C/0.79V 51C/.82V

So the last 1-2 cores seem pretty cold compared to the first two which indicates a problem to me.

I already checked screws on cooler -> tightened them -> same results.
I reapplied thermal paste -> same results.

In cgminer log I'm getting no errors at all.

Anybody have an idea what could be wrong with it and what steps I could try?
Pages: « 1 2 3 4 5 [6]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!