BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards, 215 MH/s on LX150 - page 25.

gusti

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Quote from: DeathAndTaxes on December 01, 2011, 11:46:03 AM

Quote from: gusti on December 01, 2011, 10:25:07 AM

3COM switch is rated from 6 to 16 vdc (if I remember correctly, I don´t have it here but I can check later).
But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

Can you snap a pic of the label. I am curious.

Sure, I will take pictures of PS and switch running, tomorrow when I go to the office.

sadpandatech

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Quote from: DeathAndTaxes on December 01, 2011, 11:46:03 AM

Quote from: gusti on December 01, 2011, 10:25:07 AM

3COM switch is rated from 6 to 16 vdc (if I remember correctly, I don´t have it here but I can check later).
But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

Can you snap a pic of the label. I am curious.

  I am as well, the only other thing I can think of would be the polarity. But for a standard 3Com product to have something other than the standard center pin being 'hot' would be very odd.

  I'm stuck on this one. That 3a regulator should handle by it's specs, 4-14.5v input. I did not look at its DS to verify the 16v peak but even without it, it seems that PSU should not have popped it without a bad polarity or short some place. Edit; Is the head changeable on that PSU?

  How much would you charge, Ztex, to replace just that regulator?

DeathAndTaxes

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Gerald Davis

Quote from: gusti on December 01, 2011, 10:25:07 AM

3COM switch is rated from 6 to 16 vdc (if I remember correctly, I don´t have it here but I can check later).
But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

Can you snap a pic of the label. I am curious.

gusti

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Activity: 1099

Merit: 1000

Quote from: ztex on December 01, 2011, 11:37:18 AM

Quote from: gusti on December 01, 2011, 10:25:07 AM

But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

It it the peak voltage or the men voltage?

12 VDC is the nominal voltage the power supply is rated, and showed in the front of it.
11.3 and 13.5 are measured with a digital multimeter, so I suppose they are median voltages.

ztex

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ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 10:25:07 AM

But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

It it the peak voltage or the men voltage?

gusti

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Activity: 1099

Merit: 1000

Quote from: sadpandatech on December 01, 2011, 10:18:19 AM

Quote from: gusti on December 01, 2011, 10:07:00 AM

Quote from: ztex on December 01, 2011, 09:54:21 AM

Quote from: gusti on December 01, 2011, 09:27:48 AM

Please explain you first why my PS is currently working with original switch.

I don't understand you logic. You are writing (again) that ZTEX FPGA Boards have support your power supply because your router supports it.

The power supply is supported by your router because your router has a different input voltage range.

Buddy, you told me that any supermarket power supply will fit, and you were wrong. My switch (not a router) has a similar input range, from 6 to 16 VDC, if I remember correctly. (I can publish a photo too, you seem to like photos).

Did he not say 'a 12v supermarket PSU would fit'? I mean, you seem to know atleast a little bit about electronics. What made you think a PSU designed for a product rated for 6 to 16v would be appropriate for a product rated for 12v? :/

On the back fo that 3COM PSu what does it list for the output range on volt and amps?

3COM switch is rated from 6 to 16 vdc (if I remember correctly, I don´t have it here but I can check later).
But the PS is rated 12 VDC 1000 ma, and the further measures confirm that (11.3 with load and 13.5 idle)

sadpandatech

hero member

Activity: 504

Merit: 500

Quote from: gusti on December 01, 2011, 10:07:00 AM

Quote from: ztex on December 01, 2011, 09:54:21 AM

Quote from: gusti on December 01, 2011, 09:27:48 AM

Please explain you first why my PS is currently working with original switch.

I don't understand you logic. You are writing (again) that ZTEX FPGA Boards have support your power supply because your router supports it.

The power supply is supported by your router because your router has a different input voltage range.

Buddy, you told me that any supermarket power supply will fit, and you were wrong. My switch (not a router) has a similar input range, from 6 to 16 VDC, if I remember correctly. (I can publish a photo too, you seem to like photos).

Did he not say 'a 12v supermarket PSU would fit'? I mean, you seem to know atleast a little bit about electronics. What made you think a PSU designed for a product rated for 6 to 16v would be appropriate for a product rated for 12v? :/

On the back fo that 3COM PSu what does it list for the output range on volt and amps?

gusti

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Activity: 1099

Merit: 1000

Quote from: ztex on December 01, 2011, 09:54:21 AM

Quote from: gusti on December 01, 2011, 09:27:48 AM

Please explain you first why my PS is currently working with original switch.

I don't understand you logic. You are writing (again) that ZTEX FPGA Boards have support your power supply because your router supports it.

The power supply is supported by your router because your router has a different input voltage range.

Buddy, you told me that any supermarket power supply will fit, and you were wrong. My switch (not a router) has a similar input range, from 6 to 16 VDC, if I remember correctly. (I can publish a photo too, you seem to like photos).

You need to assume that your boards need a exactly regulated power supply, and customer need to be aware that anything below a switching PC grade power supply is dangerous for your cards. And you need to respond for the warranty.

ztex

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ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 09:27:48 AM

Please explain you first why my PS is currently working with original switch.

I don't understand you logic. You are writing (again) that ZTEX FPGA Boards have support your power supply because your router supports it.

The power supply is supported by your router because your router has a different input voltage range.

DeathAndTaxes

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Activity: 1218

Merit: 1079

Gerald Davis

Quote from: tnkflx on December 01, 2011, 04:54:29 AM

Powering the 2nd board after noticing smoke on the first one is kinda stupid...

Yeah I can see blowing one board but everyone knows the magic smoke is what makes computer chips work. If you get a smoke leak you don't want to do the same thing and let the magic smoke leak out of the second board. That magic smoke is expensive.

gusti

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Merit: 1000

Quote from: ztex on December 01, 2011, 09:22:48 AM

Quote from: gusti on December 01, 2011, 08:58:41 AM

Yes, please you continue lying and publish fake emails and headers.

Shall I publish the header?
Please explain the picture with the burned part

Please explain you first why my PS is currently working with original switch.

ztex

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Activity: 367

Merit: 250

ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 08:58:41 AM

Yes, please you continue lying and publish fake emails and headers.

Shall I publish the header?

Please explain the picture with the burned part

gusti

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Merit: 1000

Quote from: ztex on December 01, 2011, 08:47:24 AM

Quote from: gusti on December 01, 2011, 08:22:02 AM

Now you are plainly lying, I NEVER wrote such email to you.

I can publish the header of this mail if you want.

And what is about the image if a part is blown up in this way it produces smoke.

Yes, please you continue lying and publish fake emails and headers.
I can also publish the photo of the power supply up and running, which will not prove anything.

You need to assume that your boards are not properly protected, and they need to be fed by a better regulated power supply.
Which you didn´t advise from the start, so you need to assume your fault and give a solution.

ztex

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ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 08:22:02 AM

Now you are plainly lying, I NEVER wrote such email to you.

I can publish the header of this mail if you want.

And what is about the image. If a part is blown up in this way it produces smoke.

gusti

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Quote from: ztex on December 01, 2011, 08:17:40 AM

Quote from: gusti on December 01, 2011, 07:39:18 AM

... or you cannot sell anymore.

please also stop that threats.

No mean to threat you, only demanding a solution for this.

gusti

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Quote from: ztex on December 01, 2011, 08:12:20 AM

Quote from: gusti on December 01, 2011, 07:39:18 AM

Sure, I want to be sure that every possible customer here knows beforehand that your support and warranty is non-existent.

Defects have been caused by usage out of specification and are therefore not covered by warranty.

Quote

You sold hundreds of cards, and so what ? I have 120 PC miners built by me and never blowed a card before, which says nothing.

It says that other customers have no problem to run this board within the specifications.

Quote

You are also a liar, I never told you that smoke came out of the first card.

Here is what you wrote on Nov 10:

Quote

...
After half an hour, while I was doing some testing, smoke came out of
a resistor, green led turned off, and cooler fan stopped working.

2nd card, green led turned on and after 10 seconds turned almost off,
and then off at all, fan also off.
...

It is also clearly visible on the image, that a chip has been burned and smoked.

Now you are plainly lying, I NEVER wrote such email to you.
Please stop lying and accept that your boards have a design failure, and they are not suitable for consumer grade power supplies.
I demand a proper solution for this problem.
Thanks.

ztex

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ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 07:39:18 AM

... or you cannot sell anymore.

please also stop that threats.

ztex

donator

Activity: 367

Merit: 250

ZTEX FPGA Boards

Quote from: gusti on December 01, 2011, 07:39:18 AM

Sure, I want to be sure that every possible customer here knows beforehand that your support and warranty is non-existent.

Defects have been caused by usage out of specification and are therefore not covered by warranty.

Quote

You sold hundreds of cards, and so what ? I have 120 PC miners built by me and never blowed a card before, which says nothing.

It says that other customers have no problem to run this board within the specifications.

Quote

You are also a liar, I never told you that smoke came out of the first card.

Here is what you wrote on Nov 10:

Quote

...
After half an hour, while I was doing some testing, smoke came out of
a resistor, green led turned off, and cooler fan stopped working.

2nd card, green led turned on and after 10 seconds turned almost off,
and then off at all, fan also off.
...

It is also clearly visible on the image, that a chip has been burned and smoked.

tnkflx

sr. member

Activity: 349

Merit: 250

Quote from: gusti on December 01, 2011, 07:39:18 AM

Quote from: ztex on December 01, 2011, 04:45:22 AM

Quote from: gusti on November 30, 2011, 08:43:50 PM

I highly recommend not buying anything from this vendor, his warranty is inexistant.

Gusti, In your mail from Nov 10 you wrote that smoke came out of one of the part. Why you destroyed the second board in the same way instead of asking me what is going wrong?

Sure, I want to be sure that every possible customer here knows beforehand that your support and warranty is non-existent.
You sold hundreds of cards, and so what ? I have 120 PC miners built by me and never blowed a card before, which says nothing.

You are also a liar, I never told you that smoke came out of the first card.
You need to support your failing boards, or you cannot sell anymore.

This can be easily settled... ztex can show the mail from gusti if both agree that that mail can be made public...

gusti

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Merit: 1000

Quote from: ztex on December 01, 2011, 04:45:22 AM

Quote from: gusti on November 30, 2011, 08:43:50 PM

I highly recommend not buying anything from this vendor, his warranty is inexistant.

Gusti returned two boards 2 days ago. Both voltage regulators on both boards where destroyed. These voltage regulators are over current and temperature protected. The only way do destroy voltage regulators is by over voltage.

Since the valid range of is clearly specified on the products page (http://www.ztex.de/usb-fpga-1/usb-fpga-1.15x.e.html#con5), this is not covered by warranty.

Here is an image which shows the 3.3V regulator of one of Gustis board:

Gusti, In your mail from Nov 10 you wrote that smoke came out of one of the part. Why you destroyed the second board in the same way instead of asking me what is going wrong?

These regulator circuits are used in 4 other products. I sold a few hundreds of them. Gusti is the only customer I know who destroyed this way regulators.

BTW, I just counted it: wrote Gusti 22 support mail which was not always easy. His last mail was

Quote

no problem, bro
I will make sure you will not sell a single card in the forum anymore

Sure, I want to be sure that every possible customer here knows beforehand that your support and warranty is non-existent.
You sold hundreds of cards, and so what ? I have 120 PC miners built by me and never blowed a card before, which says nothing.

You are also a liar, I never told you that smoke came out of the first card.
You need to support your failing boards, or you cannot sell anymore.

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