TheAbandonwareGuy wrote on 2022-08-29, 04:02:
TrashPanda wrote on 2022-08-29, 01:56:
TheAbandonwareGuy wrote on 2022-08-29, 01:06:I managed to repair the EVGA GeForce 6800GT AGP that I acquired from fellower VOGONr @CJ_reha 6 years ago. I had bought it with […]
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I managed to repair the EVGA GeForce 6800GT AGP that I acquired from fellower VOGONr @CJ_reha 6 years ago. I had bought it with the understanding the VGA port had an RGB channel dead but unfortunately USPS did what they do best and beat the crap out of it during shipping, knocking off a cap and apparently causing at least one cold solder joint either in the BGA or in the resistors on the back of the card that was causing artifacting on BIOS. Basically I stripped the cooler off, cleaned it with isopropyl alchohol and a toothbrush, then ran my heatgun at 480 degrees with low air over the NV40 chip (8 minutes) and the BGA RAM chips (30 seconds per chip) then bumped the air flow up to medium and slowly reflowed the entire back of the card along with the rear front portion where the VRMs are. I let it cool down and sure enough the artifacts were gone, and now it renders perfectly after reassembling the cooler with new thermal paste. VGA port is still messed up but DVI to VGA works fine and I don't foresee myself ever running dual monitors on this (realistically I would never use a card this valuable/fragile for anything other than benchmarking, seeing as how ludites have inflated the price of EVGA 6800GTs to $125+ now)

Not the cleanest SMD soldering job but it seems to be electrically functional. Didn't help I accidentally ordered a 8mm cap instead of a 10mm cap.

Tested it out with the classic Nalu tech demo. Seems to be working fine.

Also ran 3DMark2005 for good measure. Scores seem to be on par, didn't notice any issues.
Kinda wish I hadn't sold my giant box of dead GPUs from 2004-2011 last year, now that it seems there is a high likelyhood I could have gotten some of them going with my heat gun and newfound proficiency in soldering.
Weirdly I got three 6800GT AGP cards recently for 125 USD for the lot, all three work perfectly and dont appear to have ever had much use, disassembly of the fan unit revealed almost no dust or any indication of the cards having been in constant use.
Thought I was only buying one but got all three, Wonder how they would go in SLI.
SLI over AGP.... not really a thing but thats a good deal for 3 6800GT AGPs. Sometimes eBay sellers just want to clear inventory. Sometimes I bookmark something overpriced and come back a month or two later and low ball them. You'd be amazed how often it works.
I prefer to do other thing instead. When someone sells old tech that i want (to add where it belong in the collection), but the seller did put high price and he does not even know what the thing is, does not have the knowledge how to test it, and confirm the thing is working fine, or is partly working, or not at all (i like to buy blindly stuff for 5-10-15 euros, but if someone wants much money for something that is not 110% tested and free of BS and problems they can go fk themselves for being greedy and lazy, or ignorant), i like to offer low price, or fair trade, and they refuse.. Fine then i bring the big guns, i just use alt ACC, and make some days later offer to the seller, to buy what i want, but the thing is i say that i "dont have" the money, and i will need an week to gather them, so i will send PM then. Ofc when a week passes i find picture from the internet, i send to the seller, and i say i did find the exact same thing, but for 1/3 of the price, and i "wish" all good to the seller and GL selling the thing.. Most of the times this is very good to lower the moral, and the high hopes of the seller, for the big money he wanted, and then after some time i talk to him from another alt ACC and i try to get the thing on my own terms, and most of the time it works..
Some ppl really suck at selling things, they want big money, but they dont even bother to test even to BIOS FK them... Rather sell the 3Dfx card (or whatever the rare is) for pocket change like 10$ UNtested, i am happy to try my luck, or test the card and sell it for 50-60$.... But asking for 50-60$ on UNtested rares well, he can get the money (from someone that is fine with that kind of BS) he want, and shove them in his greedy mouth ......
Mah systems retro, old, newer (Radical stuff)
W3680 4.5/ GA-x58 UD7/ R9 280x
K7 2.6/ NF7-S/ HD3850
IBM x2 P3 933/ GA-6VXD7/ Voodoo V 5.5K
Cmq P2 450/ GA-BX2000/ V2 SLI
IBM PC365
Cmq DeskPRO 486/33
IBM PS/2 Model 56
SPS IntelleXT 8088