no, i need photos from the Z9 hash board (not Z9 mini).

I offer 0.6 Zcash for a couple of photos of z9 hash board.
PM me before sending the photos.
I can't believe no one has opened the case

I would pay 0.5 Zcash for a couple of photos of z9 hash board.
PM me for details before sending the photos.

would someone have the courage and open their Z9 (not mini) and make a couple of detailed pictures of one of those hashing boards? I would pay some Zcash for that. PM me

Hi Efudd,
could you please post a high resolution photo of the z9 hashing board?

I'm pretty sure in the near future we should see custom firmware and/or some hardware changes that would take one or the other to significantly higher profitability.
Z9 seems more power/temp limited than z9 mini.
But we need to see the Z9 hashing board to confirm

thanks for asking mods to move it to the right section.

I'm trying to decide between purchasing 4 x Z9 mini and 1 x Z9 full.
Could someone please post a Z9 full high resolution photo of the hashing board?
I need to do some analysis of all the potential improvements, limitations, voltage / current adjustments that are likely to appear in the upcoming months.

Could anyone please post a high resolution photo of the Z9 (Not mini) hashing board?

What is the power consumption at 900Mhz and 20Ksol?

There might be another limitation, which is the number of 6pin PCI-E power connectors per board, Z9 Mini has one 6pin connector to power 4 chips, Z9 has 2 x 6pin power connectors per board to power 16 chips. Each connector is rated at 150 Watt max, so 6 connectors x 150 = 900W. So those power connectors are at MAX rated power out of the box. 60k will require at least 50 more power, which is 1350Watt best case scenario, if not more.

-i 0 helped, thanks a lot

i have 2x7990 + 4x RX 480 on the same mobo = 4GPUs + 4GPUs = 8 GPUs

When i run  only 2x7990 i get ~208
When i run  only 4x RX 480 i get ~210
When i run all 8 i get 350. Is there any reason for not getting ~420 when running all 8?

could you please advise on how to safely remove all the heatsinks from antminer S7. Did you use heat gun?
What did you use to clean the chips?

Looks very bad.
It just proves once again that the existing cooling design is bad and needs improvement.
At the same time, if heat sinks can not be removed safely from chips, then they can probably be removed safely from the back side of the board.
According to photos, there will be a good heat transfer from the back side of the board through some thick thermal pads to water block, or even better, through some thin thermal pads to a more sophisticated water block.
The temps should go lower by 10-15 degrees allowing some overclocking or safe quiet long term operation.

I personally think it is very unlikely to have S7 kits ever.
So we should start with what we have.

For this project to be successful we need:
1. Remove safely all the heat sinks at least from the side with chips
2. One S7 will require 2 water blocks, or 3 water blocks for 2 x S7. I'm working on this right now. I'm, pretty sure my S7 water block will be lighter and higher quality that C1 water blocks.
3. Other water cooling parts are required, but they are available everywhere

But there is still point 1, this miner is expensive, damaging even a single chip will probably affect an entire array of chips which will affect significantly the hash rate.

Any ideas how to safely remove the heat sinks from chips?

 

I would like to switch to water cooling for my Antminer S7.
Is there a safe way to remove all the aluminum heat sinks from chips?