That's a 37% improvement on the old chips but he is running it with 100mV(11%) more power this time.
https://bitcointalksearch.org/topic/m.5640531
Topic: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! - page 3. (Read 176742 times)
March 11, 2014, 02:59:15 PM
Technobit/Marto74 has a 16x board running at 61.65GH which is 3.85GH per chip. 406k accepted so ran long enough to be a reliable average.
That's a 37% improvement on the old chips but he is running it with 100mV(11%) more power this time.
https://bitcointalksearch.org/topic/m.5640531
That's a 37% improvement on the old chips but he is running it with 100mV(11%) more power this time.
https://bitcointalksearch.org/topic/m.5640531
March 07, 2014, 01:34:02 PM
Hi Guys,
been testing my Yellow Jacket on Rev2 chips. 56 bits works really well and very stable, 0 HW errors. Im gonna do some more testing tonight.
This is what I get after it settles down after few hours.
Edit: Sorry for this big pictures, no idea how to upload them smaller.
been testing my Yellow Jacket on Rev2 chips. 56 bits works really well and very stable, 0 HW errors. Im gonna do some more testing tonight.
This is what I get after it settles down after few hours.
Edit: Sorry for this big pictures, no idea how to upload them smaller.
March 07, 2014, 06:38:06 AM
Out of curiosity - has anyone tried IOVDD over 1.8V? Would it survive 2.5-2.8V?
Yes, 2.5V for sure, but didn't dare to go higher.Oh, nice!
I just got an idea on how to chain the chips without having to use the CMQ/CMMINUS/CMPLUS pins ... let's see how many chips am I going to fry while testing
March 07, 2014, 06:33:21 AM
Out of curiosity - has anyone tried IOVDD over 1.8V? Would it survive 2.5-2.8V?
Yes, 2.5V for sure, but didn't dare to go higher. March 07, 2014, 06:29:08 AM
Out of curiosity - has anyone tried IOVDD over 1.8V? Would it survive 2.5-2.8V?
March 07, 2014, 03:37:19 AM
What about trying with 60-62 Bits Rev 1 was having an issues with OC higher that 56 if i remember...
Not yet, the code is unchanged from rev 1, so i have 56 as hard limit. Rev1 at 4.94GH/s (stock or OC'ed?) combined to 5.40GH/s (OC'ed) combined is only a 10% improvement - should be able to get more than that, or is the hash rate readout quite correct yet?
The miner was just started, so the hashrate was not stable yet, but if you look at the 'expected' then they are calculated based on the cores count = 864/756 = ~14% increase expected.All tests made at the same voltage and the chips are consuming almost the same current (rev 2 a bit lower ~3-4%).
3GH achieved at 0.62W/GH and 0.81V per chip, but a full string (@12V) requires a bit more current and will rise to 0.75W/GH
I have not pushed the chip yet to higher voltage and clocks
March 07, 2014, 03:07:22 AM
Rev1 at 4.94GH/s (stock or OC'ed?) combined to 5.40GH/s (OC'ed) combined is only a 10% improvement - should be able to get more than that, or is the hash rate readout quite correct yet?
March 07, 2014, 02:49:24 AM
Super:)
What about trying with 60-62 Bits Rev 1 was having an issues with OC higher that 56 if i remember...
Thank you for sharing your results
What about trying with 60-62 Bits Rev 1 was having an issues with OC higher that 56 if i remember...
Thank you for sharing your results
March 07, 2014, 02:41:03 AM
March 06, 2014, 06:52:54 PM
I bookmark this thread..
will read it later..
will read it later..
March 06, 2014, 06:38:56 PM
NEW REV2 CHIPS HAVE ARRIVED!!
That was extremely fast delivery - got the chips in just a bit over 24h !!!Test results for my 2 chip string board powered with 2.51V and current is measured as voltage across an 0.4Ohms resitor:
Old setup with rev 1 chips -
chip 0 0.805V
chip 1 0.819V
current 1.9925A (0.797V)
Chip 0 replaced with rev 2 -
chip 0 0.812V
chip 1 0.819V
current 1.9875A (0.795V)
Both chips replaced with rev2 -
chip 0 0.812V
chip 1 0.816V
current 1.9825A (0.793V)
Please note, that the expected GH are calculated based on rev 1 cores (756) and will be even more when recalculated for the proper number of cores (864) for rev 2 chips
Its so beautiful
March 06, 2014, 04:22:16 PM
NEW REV2 CHIPS HAVE ARRIVED!!
That was extremely fast delivery - got the chips in just a bit over 24h !!!Test results for my 2 chip string board powered with 2.51V and current is measured as voltage across an 0.4Ohms resitor:
Old setup with rev 1 chips -
chip 0 0.805V
chip 1 0.819V
current 1.9925A (0.797V)
Chip 0 replaced with rev 2 -
chip 0 0.812V
chip 1 0.819V
current 1.9875A (0.795V)
Both chips replaced with rev2 -
chip 0 0.812V
chip 1 0.816V
current 1.9825A (0.793V)
Please note, that the expected GH are calculated based on rev 1 cores (756) and will be even more when recalculated for the proper number of cores (864) for rev 2 chips
March 04, 2014, 06:58:45 PM
NEW REV2 CHIPS HAVE ARRIVED!!
NOTE: THIS IS AN ENGINEERING BATCH. PLEASE DON'T HOARD. 32 CHIPS MAX PER CUSTOMER.
Please don't send PM requests for samples. Samples are available through the web shop.
Chips are pin compatible with the previous version. Expect better performance and lower power consumption. We are currently testing the chip ourselves, so exact performance is still unknown. Please share your experiences and measurements in this thread!!!
Pricing is TBD, but will be lower than the engineering samples price.
NOTE: THIS IS AN ENGINEERING BATCH. PLEASE DON'T HOARD. 32 CHIPS MAX PER CUSTOMER.
Please don't send PM requests for samples. Samples are available through the web shop.
Chips are pin compatible with the previous version. Expect better performance and lower power consumption. We are currently testing the chip ourselves, so exact performance is still unknown. Please share your experiences and measurements in this thread!!!
Pricing is TBD, but will be lower than the engineering samples price.
March 04, 2014, 05:12:21 PM
Can i please for a few samples to learn?
Thank You
Thank You
March 04, 2014, 08:23:05 AM
March 03, 2014, 07:06:02 PM
Interested...
Glad to see you back. Can't wait for your products!
March 03, 2014, 06:58:21 PM
I seem to have missed the info on the rev 2 chips, does anyone have the specs or test results yet?
March 03, 2014, 06:40:10 PM
Interested...
March 03, 2014, 11:34:55 AM
Exciting stuff ! Looking forward to the opportunity for purchasing full rigs using these !
March 03, 2014, 11:11:26 AM
Please put me in the sample list. I just sent out my new design to the pcb fab...
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