Well excuse me for not reading every post in this thread before I ask a question. Anybody with half a brain could figure out that if I had seen Tulip's comment I wouldn't have asked the question.
You Neptune owners are a touchy bad tempered lot. Can't imagine why. Better luck next time fellas ~L)L~
So, in conclusion, if it is a LM75 then yes it is measuring the board temperature in its locale, not the on die ASIC temperature via a temperature diode on the ASIC. Is anybody having trouble with cooling fans not operating correctly ? Is anybody having trouble ROI'ing their Neptune ?
Topic: Swedish ASIC miner company kncminer.com - page 293. (Read 3049515 times)
That now leaves me wondering why there are two LM75 devices adjacent to each other.
There aren't, and tolip_wen already told you what the other was.
Please forgive me for just answering the fucking question that was asked.
One is an
LM75
(closer to PCIe)
other is
24C32WP
k348k
It's the i2c EEprom
YMMV
One is an
LM75
(closer to PCIe)
other is
24C32WP
k348k
It's the i2c EEprom
YMMV
At the rate that Knc is going not shipping the batch 2 Neptune's yet it looks like they will owe me 3 or 4 Neptune's!
This is shocking! Do they think that because they shipped at least one Neptune by Q1/Q2 that they have met their timeline obligation? That is totally absurd. 'Ontime and overspec' is their claim with this performance? What if they take another 12 months to deliver the remaining Neptunes? They still claim to meet their timeline? I've got a feeling customers aren't going to stand by forever. Probably time for serious action.
At the rate that Knc is going not shipping the batch 2 Neptune's yet it looks like they will owe me 3 or 4 Neptune's!
Just an FYI but It's _my_ credibility you have questioned.
just a little touchy are we tulip ?
That now leaves me wondering why there are two LM75 devices adjacent to each other.
what we need these one?
lm75?
??
lm75?
?? 
There is no such analog sensor input on any of the lm75 revisions posted in the last couple of pages.
As above there is a "band gap sensor on-board" so no external sensor needed for LM75.
I still think the temps on the advanced page are from the die itself not from a sensor elsewhere on the board.
I still think the temps on the advanced page are from the die itself not from a sensor elsewhere on the board.
Yes, I misread your statement to imply that the basic LM75 had the onboard sensor, but the 'A' rev that you were looking at previously did have those provisions, and that the schematic you were posting was of this alleged 'A' rev.
One of them is an LM75, as I've told you a dozen times 
Don't mean to question your credibility Avenger as everyone knows that your posts are always fact based ~L)L~ but I would like independent confirmation of the device identity. For both of them.
If they are LM75 devices, then they are measuring the board temperature at their location and are not using a temperature diode on the ASIC. If they are some other chip, then they may be using a temperature diode on the ASIC chip.
Could someone please provide a nice close up showing these 2 devices ?
Just an FYI but It's _my_ credibility you have questioned.
I looked at the parts and reported here as asked.
I HAVE pics but will not provide to you.
Believe me or not, my day remains the same
YMMV
One of them is an LM75, as I've told you a dozen times
Don't mean to question your credibility Avenger as everyone knows that your posts are always fact based ~L)L~ but I would like independent confirmation of the device identity. For both of them.
If they are LM75 devices, then they are measuring the board temperature at their location and are not using a temperature diode on the ASIC. If they are some other chip, then they may be using a temperature diode on the ASIC chip.
Could someone please provide a nice close up showing these 2 devices ?
I still think the temps on the advanced page are from the die itself not from a sensor elsewhere on the board.
As there is nothing "on the die" sensing temperature, the data from the LM75 is the only information available to give an indication of the asic core temperature. It's obviously not the actual real core temperature, as tolip's IR gun figures show, but the data on the status/advanced page is coming from the LM75 and not from any other source. Which is what I have been saying.
If you need any proof of this - carefully - put your finger on the LM75 and watch the temperature value on the web interface change.
If you need any proof of this - carefully - put your finger on the LM75 and watch the temperature value on the web interface change.
Scratch that, yea, the basic LM75 does have the band gap sensor on-board. I was looking at the A version as I said in my post.
How about a schematic?
How about a schematic?
And where on this "A" rev schematic does your proposed external sensor connect?
As above there is a "band gap sensor on-board" so no external sensor needed for LM75.
I still think the temps on the advanced page are from the die itself not from a sensor elsewhere on the board.
anybody on instagram? 4 KNC neptunes in action - http://instagram.com/p/qno9H4QqnY/
You've posted this poor-quality photo already in this thread. Incidentally, you are showing 4/5 of a single Neptune, not "4 KNC neptunes".
4/5 just about; also check out the power cables... surely it can't actually be running on that?
You just want hits on your instagram or something?
anybody on instagram? 4 KNC neptunes in action - http://instagram.com/p/qno9H4QqnY/
You've posted this poor-quality photo already in this thread. Incidentally, you are showing 4/5 of a single Neptune, not "4 KNC neptunes".
anybody on instagram? 4 KNC neptunes in action - http://instagram.com/p/qno9H4QqnY/
Scratch that, yea, the basic LM75 does have the band gap sensor on-board. I was looking at the A version as I said in my post.
How about a schematic?
How about a schematic?
And where on this "A" rev schematic does your proposed external sensor connect?
inputs: 1. power
2. analog sensor signals
output: 1. Digital conversions of the readings taken
2. cutoff signal to linear actuator (or may be built in)
2. analog sensor signals
output: 1. Digital conversions of the readings taken
2. cutoff signal to linear actuator (or may be built in)
There is no such analog sensor input on any of the lm75 revisions posted in the last couple of pages.
...the data on the status/advanced page is coming from the LM75 and not from any other source. Which is what I have been saying.
Scratch that, yea, the basic LM75 does have the band gap sensor on-board. I was looking at the A version as I said in my post.
How about a schematic?
http://www.maximintegrated.com/en/products/analog/sensors-and-sensor-interface/LM75.html
the automotive version:
http://www.ti.com/lit/ds/symlink/lm75b.pdf Exactly the same unit with a few changes
inputs: 1. power
2. analog sensor signals
output: 1. Digital conversions of the readings taken
2. cutoff signal to linear actuator (or may be built in)
...the data on the status/advanced page is coming from the LM75 and not from any other source. Which is what I have been saying.
Scratch that, yea, the basic LM75 does have the band gap sensor on-board. I was looking at the A version as I said in my post.
How about a schematic?
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