3dfx Archive - 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700

ultima

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #105 - 02.07.13 at 11:48:53

seems to me that the C components are operating within their respective ranges, so close to eachother.....it would suprise me if those 3 were the problem.
So, asuming the chip itself is in working order, the 14.3Mhz part would be the problem.

As for getting a reader for it, depends, what is cheaper..getting one locally yourself or ship one to you from someone elses place and probably pay a load on shipping, which in the end might be just as expensive.

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gdonovan

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #106 - 02.07.13 at 11:54:04

ultima wrote on 02.07.13 at 11:48:53:

seems to me that the C components are operating within their respective ranges, so close to eachother.....it would suprise me if those 3 were the problem.
So, asuming the chip itself is in working order, the 14.3Mhz part would be the problem.

COULD be the problem.

It might be easier swapping with a known good part.

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Loeschzwerg Senior Member Offline AAlchemy PSU maker :-) Posts: 396 Germany -> Bavaria -> Augsburg Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #107 - 02.07.13 at 12:51:29 Voltage is fine. An oscilloscope can be very expensive, especially if you want to measure frequencies above 10 MHz (and that is the case). Unfortunately my multimeter is also only capable of measuring up to 10MHz BUT, I've got one or two NEW 14.3MHz crystals left from the repair of exxe's Barracuda card:
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osckhar

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #108 - 02.07.13 at 12:59:03

@Dominik- Are you interested to part with one crystal? Please, talk with Michel.

Just I dont like the idea to change smd parts without know if it works or not but... I think it is the cheap way but possibly this is the problem since internal power supply works ok.

@Gary- I sent you a copy bios.

Regards,
Oscar.

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Loeschzwerg

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #109 - 02.07.13 at 13:34:54

osckhar wrote on 02.07.13 at 12:59:03:

Just I dont like the idea to change smd parts without know if it works or not but... I think it is the cheap way but possibly this is the problem since internal power supply works ok.

Me too, but it really is the cheapest way unless someone you know is lending you an "osci".

Sure, you can have the crystal.

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osckhar

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #110 - 02.07.13 at 13:39:37

Loeschzwerg wrote on 02.07.13 at 13:34:54:

osckhar wrote on 02.07.13 at 12:59:03:

Just I dont like the idea to change smd parts without know if it works or not but... I think it is the cheap way but possibly this is the problem since internal power supply works ok.

Me too, but it really is the cheapest way unless someone you know is lending you an "osci".

Sure, you can have the crystal.

Thank you so much!!!

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Loeschzwerg Senior Member Offline AAlchemy PSU maker :-) Posts: 396 Germany -> Bavaria -> Augsburg Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #111 - 02.07.13 at 15:35:40 Btw. there is no crystak with 14.3MHz, they are always 14.31818MHz I can't find the datasheet of the original crystal, so there might be a little tolerance when it comes to the frequency (0.00xMHz) and the load capacity. This will have no negative impact if you ask me.
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trevormacro

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #112 - 02.07.13 at 16:09:21

Loeschzwerg wrote on 02.07.13 at 15:35:40:

Btw. there is no crystak with 14.3MHz, they are always 14.31818MHz Wink

I can't find the datasheet of the original crystal, so there might be a little tolerance when it comes to the frequency (0.00xMHz) and the load capacity. This will have no negative impact if you ask me.

High res. pictures of my Y1 with ref. A143G0Y:

If it's not dangerous for the rampage card, Oscar can put it on my card.
You have a PM.
Can you send him today?

Thanks for help us.

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« Last Edit: 02.07.13 at 16:41:25 by trevormacro »

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Komponent Senior Member Offline 3dfx modder Posts: 282	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #113 - 02.07.13 at 17:43:21 Voodoo5 cards are using something very close: A143E0Y http://upload.wikimedia.org/wikipedia/commons/6/61/KL_3DFX_Voodoo5_5500.jpg Just take one off a working card, put in on the Rampage and see what happens. That's what I would do anyway...
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ultima God Member Offline Always searching Posts: 876 The Netherlands Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #114 - 02.07.13 at 17:57:18 Before doing that I would check it's specs first if they are also close in operation, not just in number
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trevormacro

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #115 - 02.07.13 at 18:18:16

Komponent wrote on 02.07.13 at 17:43:21:

Voodoo5 cards are using something very close: A143E0Y
http://upload.wikimedia.org/wikipedia/commons/6/61/KL_3DFX_Voodoo5_5500.jpg
Just take one off a working card, put in on the Rampage and see what happens. That's what I would do anyway...

Hi Komponent and thanks for your help. you have a good idea.
No risks to damage the card with the Y1 of the Voodoo5?
What are the differences btw A143E0Y and A143G0Y?

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« Last Edit: 02.07.13 at 18:21:51 by trevormacro »

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Komponent

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #116 - 02.07.13 at 18:40:57

The only thing the crystal does is to create a reference clock signal at 14.3Mhz. They are more or less generic parts, you'll hardly find datasheets for them. Replacing is very easy and I can't think now on any scenario that will damage a card when mounting a working crystal on it.
Better on, if you only want to test the crystal, and not use the Rampage, unsolder it, and take a common working video card that has a similar part on it, unsolder the crystal on that card too, put the one from Rampage in it's place and test that card. Yeah, put the crystal from Rampage on a Voodoo5 and see if that works.

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Loeschzwerg

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #117 - 02.07.13 at 19:14:55

Quote:

What are the differences btw A143E0Y and A143G0Y?

I now know what the marking means

A TUH ZY R

A -> stand for the Abracon Corporation
TUH -> Frequency
   T = First "ten" digit of frequency
   U = First "unit" digit of frequency
   H = First "tenth" digit of frequency
Z      -> Month letter ( A to L )
Y      -> Last digit of year
R      -> Traceability code ( character A to Z )

So A143G0Y means:
14.31818MHz July 2000

So if you ask me: The crystal of every Voodoo 1/2/3/4/5 works as well as the one I still have at home.

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« Last Edit: 02.07.13 at 19:16:08 by Loeschzwerg »

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trevormacro God Member Offline Voodoo5k6 Gold SE, Legend & Mystical Edition Posts: 622 Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #118 - 03.07.13 at 14:39:24 Is a Smart Tweezers can measure the Crystal Y1 frequency?
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Loeschzwerg Senior Member Offline AAlchemy PSU maker :-) Posts: 396 Germany -> Bavaria -> Augsburg Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #119 - 03.07.13 at 14:52:27 Depends on the smart tweezer, it must be capable of measuring more than 10MHz (a common limit on cheaper multimeters an tweezers).
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