With reference to the firmware 1.2.6, ASIC_Engine.c line 1580, where you can see it is trying to set the frenquency. I tried changing the iFreqFactor to 350000000 but it gives me alot of HW error...
Note that it will not change the GetInfo details of the chips... because the details are calculated in another method...
Regards

Buying another 4 chips

Watching. Will buy one 8 chip board for $300 this month. Any shipping fees to singapore?
Regards
EP

I think Lucko is trying to say a board for 16 chips with a bios that can handle 16 chips... The original designed board is for 8 chips...
Can't believe they have an engine that its behaviour can't be determined when it's enabled... It's like having a door way light that will trip your house's power when you turned it on....

I believe everything that is lower than 40MH/s per buck will not be able to / will take longer than 5 months to ROI in the soaring difficulty.
I just punch in the new difficult 50mil into http://www.bitcoinx.com/profit/ and key in the figures for jallies. Turn out that it will ROI in 58 days if your jally is 5GH/s and 47days if it's 7GH/s...

Reserve 4 more for me. I'll send payment + voucher later

Tested comment out DO_NOT_USE_ENGINE_ZERO and the jally won't start up.
Attempted to change the frequency from 291 to 350 but it still falls back to 280+. So I went to look into the codes and found that there is a method that detects the frequency and write it back. So I hardcoded the frequency to 350MHz. Starts up and runs @ 9GH/s but has near to 50% HW errors. So it's a fail.

I guess that's all for me know until my new jallies are shipped.
Regards
EP

Thanks Ashitank.

Thanks for pointing that out.

Another tip, if you want to hardcode all engines to be running (regardless it's functional or not) change __TOTAL_DIAGNOSTICS_RUN from 10 to 0. It will skip all tests on the engines. Beware of the high HW error rate.

Next thing I wanna try is to change DO_NOT_USE_ENGINE_ZERO and overclocking it to 350mhz on the frequency and see what will happen. Hopefully it won't brick 

Last but not least to max out the fan speed (FAN_CONTROL_BYTE_REMAIN_FULL_SPEED) if the above is successful.

Additional information.

How to test for the max speed your jallies can do.
1) I set the __ASIC_FREQUENCY_ACTUAL_INDEX to 1, comment out __RUN_HEAVY_DIAGNOSTICS_ON_EACH_ENGINE, and flash it to the jally. Boot up the jally
2) use the cgminer "java API stats" and look at the last miner (that should be last one due to hotplug)
3) you will see the numbers of engines that are functional. (for mine, it's 15 + 14)
4) Set __ASIC_FREQUENCY_ACTUAL_INDEX to 9 and flash it to the jally. Boot up the jally
5) use the cgminer "java API stat" and look at the last miner (that should be last one due to hotplug). If it is the same number as step 3) you got the max speed running with the most engine functional. If not, go to step 4 with __ASIC_FREQUENCY_ACTUAL_INDEX reduced by 1.

Hopes this help for others.

Did a photo shoot with the jallies over the long weekend over here. In this photo shoot, I have used this setup to flash the firmware while mining and it does not need to remove or change anything. Just that once you finish your flashing, put it back to the original shape...

These are the tools I used. There's a missing USB hub cable that used to connect the AVR to the laptop...


This is my jally. Working @ 5.5GH/s before the flash.


Removed the top cover using the hex screwdriver.


Then remove the fan.


Removed the 4 washers and "pillars" from the 4 long screws.


Now, removed the base and the 4 screws.


Flip it over and you will see this.


Unscrewed the 2 screws using the same hex screwdriver and you should see this


Now, put the plate on top and the heatsink below. Screw them back. Note that the screws should be loosely tight (turn until you feel a small resistance) and do not screw too tight.


Now, put back the base and 3 screws (less the screw that is on the fan side of the board)


Plug in the fan cable.


Then plug in the cable (can be 10 pin, can be 40 pins. I searched around in my home and I only managed to find the cable used for my floppy drive so I used that). You should be able to plug both in.


Now, put the fan back in. Using the 3 screws, make sure it is directly above. Do a manual spin (meaning use your hand/fingers to spin the fan) to make sure the blades are not hitting anything.


Now, turn back the jallies on and connect the AVR dragon to your PC/laptop.


Viola, now you can flash and mine without much hassle. Noted that after flashing, you might need to hard reboot your jally by turning its power off and back on.

After flashing, 7.8GH/s on one, 8.0 on the other.

Server down? Can't load the page...

Bought 5 @ 0.45btc on the same day... will you refund me the difference?
EP

Wow, that's 50% increase. Is that the firmware custom for the board? Is it working for jallies? 

I believe it is already running on the max speed it can handle... Unlike jallies, they are underclocked to start with...

Just got my dragon today.
Did a flash based on the source code 1.2.5 compiled by me, speed went from 5.5GH/s to 7.6GH/s. That jally has a grade B and a grade C chip. HW error is at a alarming rate of ~8%... Will run it 24 hours to see the average then update here again.
Getinfo gives

If it's 10 engines running, i will consider that to be a faulty chip.

According to BFL website, a grade D chip will have at least 12 engines running. https://products.butterflylabs.com/homepage-subproducts/65nm-asic-bitcoin-mining-chip.html

But this is a sample chip and i guess we can't complain much.
It still shows how professional are they to send chips that are below grade D....

For my jallyes, I have tried restarting it until i got at least 15 engines running on both chips. It works for me where the engine kinda fluctuate between 13 to 15 engines. Maybe you can try that out.

2.3GH/s is good enough for a chip though it's only 10 engine running. what are the estimated price for a board to have 8 mounted chips?

Kudos to the first working board

Nice. I love the chips now we will need some fishes

May I know what the min shares to achieve that you are targetting? It seems like you have a number in mind. I'll try to ask around here because bitcoin is not wellknown but increasing in interest.
Thanks

Kish = KH/s
Mish = MH/s
Gish = GH/s
Tish = TH/s

I'm gishy.