Got my JALAPENO today mining at 5.9 Gh/s with some tweaks

[ct1aic]

That's great news. But at this velocity, I'll get mine in 2015...

2827   2013/04/30   100049721   No   1   0   0   0      ct1aic   Undelivered

I'm right there with you, man.  

Hopefully things start gaining momentum. It does seem to be going that way; lots of these things starting to show up in the wild.

I hope so... 

[CumpsD]

"Flip top over and put on bottom"

Could you clarify this bit please? What did you exactly do?

[vapourminer]

when you take it apart youll notice the top has screw holes. put the rubber feet on the top, flip the top over and use it as the base.

[rcocchiararo]

That's great news. But at this velocity, I'll get mine in 2015...

2827   2013/04/30   100049721   No   1   0   0   0      ct1aic   Undelivered

I'm right there with you, man.  

Hopefully things start gaining momentum. It does seem to be going that way; lots of these things starting to show up in the wild.

I recomend you stop thinking about it, hopefully it will surprise you in the mailbox ONE DAY.

ORDER #   DATE             SHIP TO                   ORDER TOTAL     STATUS   
9504         9/28/12   Roberto Cocchiararo       $187.00           Processing

[howzbit]

I'm wondering if water-cooling the Jally would be over-kill?

[BlazinBeaches]

are those 120mm or 140mm fans?

[natbyte]

Fans are 92 mm low profile on the jalapeño as standard.

[BlazinBeaches]

Ah, they look bigger

I wonder if replacing the fans voids the warranty. 

[peterepeat]

I tried removing the case and flipping the fan direction and noticed a reduction in temperature (from 40 down to below 30 °C), however I did not notice an improvement in hashrate (it remained between 7.0 and 7.2GH/s)
What did seem to have an influence though was the temperature of the chips when it is powered up.
For example, when it was hashing at 7.15, at 40°C, I powered it off, waited a few seconds, then powered it back up and noticed the hashrate was lower 6.9 GH/s

Someone mentioned that the Jalapenos performs some sort of capability sweep at power up, so I was wondering if starting them from colder may have a positive effect.

So I chilled the Jalapeno in the freezer for about 20 minutes (unpowered), took it out and then powered it up as usual - this time it was hashing 7.6 GH/s - and has continued to do average this for the last 36 hours. I am now to afraid to try the process again in case it was a one-off fluke power up state of the chips that  I may never see again 

so in summary for me (recent 7GH model)

1. the fan trick did not provide any noticeable hashrate increase, but brought the operating temperature down lower.
2. There is a slight possibility that powering up the Jalapeno from a lower temperature may provide a higher chip operating setting. YMMV

[erk]

 Instead of doing all these crude hacks, why don't you simply read through the source code of the firmware and work out what has an effect first?

[peterepeat]

Instead of doing all these crude hacks, why don't you simply read through the source code of the firmware and work out what has an effect first?

now that its stable @ 7.6GH/s I will indeed read up on this

cheers

[innovation]

congratulations

[jelin1984]

Is these possible to put the extra chips that will be order to jalapeño board? Or not

[tom99]

maybe you can but u need to keep your chips from overheat and also MOSFETS might get too hot.

[peterepeat]

maybe you can but u need to keep your chips from overheat and also MOSFETS might get too hot.

I think this could be possible.
The board may need to be stenciled on the spare pads with solder paste, then the chips could be heated on.
Some shops can xray to check if the BGA chips are installed correctly.