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

goriath God Member Offline Ruggedized Retro Gamer Posts: 599 Italy/Slovenija Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #45 - 21.06.13 at 12:20:07 The dark appearance of the Rampage BGA makes it look like really a bad guy.
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m14radu God Member Offline Take your chance ! Posts: 555 Timisoara, Romania Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #46 - 21.06.13 at 13:28:11 Osckhar, your chip is working in the Michael board ?
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gdonovan YaBB Administrator Offline Infernal Collector Posts: 2361	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #47 - 21.06.13 at 13:33:19 m14radu wrote on 21.06.13 at 13:28:11: Osckhar, your chip is working in the Michael board ? I'm not sure I would want to do that, perhaps something in the board caused the chip to stop functioning. Better to make sure board is ok first.
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osckhar God Member Offline www.3Dfx.es Posts: 812 SPAIN Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #48 - 21.06.13 at 14:00:14 With my chip Michel's card does not work either. Sometimes I am very impatience. Regards, Oscar.
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gdonovan YaBB Administrator Offline Infernal Collector Posts: 2361	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #49 - 21.06.13 at 14:18:45 osckhar wrote on 21.06.13 at 14:00:14: With my chip Michel's card does not work either. Sometimes I am very impatience. Regards, Oscar. I would have been tempted too.
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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 #50 - 21.06.13 at 17:12:06 I just have a good new about the rampy chip and it come from 3dfx engineer The rampage chip take voltage for boot up from agp connection and not INTERSIL SWITCHING POWER SUPPLY HP6012CB 25AMP.
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osckhar

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #51 - 21.06.13 at 18:14:11

trevormacro wrote on 21.06.13 at 17:12:06:

I just have a good new about the rampy chip and it come from 3dfx engineer

The rampage chip take voltage for boot up from agp connection and not INTERSIL SWITCHING POWER SUPPLY HP6012CB 25AMP.

Great news since it means test socket is not doing good contact if not at least chip would take heat and it is not so. Time to try with a clamp.

Card is little bended and can be the cause. Not sure if try to put it in his original stated with a preheater tool. I use this system when a PS3 /Xbox motherboard is bended but I dont like to use preheating tools on 3Dfx cards since PCB color can change of tonality. At least it happens with VSA-100 family...Not sure how can react Rampage's PCB.

Regards,
Oscar.

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« Last Edit: 21.06.13 at 18:15:27 by osckhar »

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m14radu God Member Offline Take your chance ! Posts: 555 Timisoara, Romania Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #52 - 21.06.13 at 18:43:21 Yes, it is dangerous. I would try first of all with the clamp. Can you measure wih a multimeter if there is a proper connection betwen the agp socket and the rampage socket ?
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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 #53 - 22.06.13 at 00:12:27 A second Ex-3dfx hardware engineer give me other information about the rampage chip. Not the same as the other, strange. "It get's power form the intersil chip there should be voltage on the purple side of each large silver cap." The two ideas are not the same. We can try both of them, no?
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osckhar God Member Offline www.3Dfx.es Posts: 812 SPAIN Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #54 - 25.06.13 at 12:42:54 Today more tests. I already have different clamps to test it: @Dominik, Here some pics NOT TEST SOCKET: Big size: https://dl.dropboxusercontent.com/u/4383540/3Dfx/fotos/rampage/rampy/no_test_soc ket_1.jpg Regards, Oscar.
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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 #55 - 25.06.13 at 13:04:12 Thanks Before you dismounted the socket I thought it would've been solderer to the PCB. But now I can imagine why there are contact problems between PCB and Rampage chip.
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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 #56 - 25.06.13 at 16:46:54 Today, the others chips are arrived to Oscar's home and we have a good new and bad new. Let's see with Oscar My website updated.
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m14radu God Member Offline Take your chance ! Posts: 555 Timisoara, Romania Gender:	Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700 Reply #57 - 25.06.13 at 21:11:42 Lets hope that the chip and card are alive
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osckhar

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #58 - 26.06.13 at 10:49:00

Yesterday came in another package with different rampage chip evolution.

ASAT & ASE labeled chips are test vehicles 2 layers tape based substrates while the rampage chip was converted 1 layer substrate.

The good new is the Rampage chip works perfect even with 6 missing balls

I have noticed all the chips comes in very bad condiction on the BGA balls and even all have different missing balls. My guess is they used different clamp to make perfect contact but this system is very agressive and deteriorate the bga balls.

I have tested Michel's rampage with different clamps without luck. Card continues without work. I have checked voltage and all seems ok, in intersil and condensator as directly on the bga test socket but at the moment not luck.

Question- Hank stated the resistor packs used on the card, for example RN112 was custom component for 3Dfx. It is an array composed by 5 resistors. Hank only added 4 0402 25ohm and lack one but this one is traced and connected one VIAS. I guess since Hank did not add it means it is connected to ground but I have tested it and it does not connected to gnd.

Regards,
Oscar.

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Loeschzwerg

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Re: 3dfx Specter 1000 AGP TEST SOCKET Rev.A1 4700
Reply #59 - 26.06.13 at 12:13:06

osckhar wrote on 26.06.13 at 10:49:00:

Question- Hank stated the resistor packs used on the card, for example RN112 was custom component for 3Dfx. It is an array composed by 5 resistors. Hank only added 4 0402 25ohm and lack one but this one is traced and connected one VIAS. I guess since Hank did not add it means it is connected to ground but I have tested it and it does not connected to gnd.

Regards,
Oscar.

Adding a resistor there doesn't have any effect, cause there is a trace between both solder spots. Even if you solder 25ohm resistor to it, it will remain 0 ohm Wink

Did you check the damaged trace that lead from one of the AGP connections? (backside of the card)

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« Last Edit: 26.06.13 at 12:14:39 by Loeschzwerg »

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