Shorted Grapghics card (Geforce GTS 450) - Page 1
Forum section: electronics / repair

author: OverclockVintage
author_rank: Contributor
timestamp: June 08, 2021, 07:41:56 am
content: Hi i have this Geforce GTS 450(mine) with short circuit that i removed the electrolytic capacitors and the phase bobins to help me realize the source of the problem, but a whole lot of stuff is shorted to ground. Then i am posting this picture to help explain about the short circuit. Thanks in advance.Obs: Don't bother the bios chip, i replaced the original one, if this is not compatible i will have it to replace it again, and i also added two smd resitors close to the bios chip, it is ugly but it is well conected.

author: OverclockVintage
author_rank: Contributor
timestamp: June 08, 2021, 07:43:40 am
content: Back of it.

author: Alex_Baker
author_rank: Frequent Contributor
timestamp: June 08, 2021, 08:11:58 pm
content: If all of that is shorted to ground I would take a guess and say that the GPU die itself is very very dead...

author: OverclockVintage
author_rank: Contributor
timestamp: June 09, 2021, 05:01:17 am
content: Hi, i wondered about that,well i guess, the only option would be trying to get another chip and replace that one. It is hard to find one though. Thanks for helping.

author: OverclockVintage
author_rank: Contributor
timestamp: June 09, 2021, 01:04:51 pm
content: I i've just removed the GPU chip, does anybody knows where i can buy a replacement one?

author: ambrosia heart
author_rank: Regular Contributor
timestamp: June 10, 2021, 05:02:04 am
content: Go to Taobao or AliexpressAt taobao search for GF106-250-KA-A1and also search for 液体松香，锡球，钢网。search GTX450 chip for more details.Search you tube BGA reballing.

author: OverclockVintage
author_rank: Contributor
timestamp: June 10, 2021, 08:59:27 pm
content: Thank you so much ambrosia heart, im gonna try those.

author: Dubbie
author_rank: Unknown
timestamp: June 11, 2021, 12:16:03 am
content: I'm sure you have a good reason, but I am wondering why you are bothering to fix this very obsolete card?

author: Alex_Baker
author_rank: Frequent Contributor
timestamp: June 11, 2021, 02:41:51 pm
content: Excuse my ignorence, but are the GPUs that you can find on taobao priced at 70 YEN! which converts to only about 70 cents USD? how is that possible.

author: OverclockVintage
author_rank: Contributor
timestamp: June 11, 2021, 04:25:50 pm
content: I think you have to pay attention to the price in HKD, one US dollar is around 7,8 Hong Kong dollars, so those gpu chips are around 10 US dollars or more.

author: Alex_Baker
author_rank: Frequent Contributor
timestamp: June 12, 2021, 06:51:59 pm
content: I see, I didn't see that number. I have never bought anything from a site like taobao...

author: OverclockVintage
author_rank: Contributor
timestamp: September 07, 2021, 04:08:45 am
content: Hi people, i've already replaced the gpu chip, now i still have a problem with the bios chip that i need to replace. So my doubt is, the original bios chip was a 25Q20BSIG, can i replace it with a 25Q32BSIG? Because the 25Q20BSIG i cannot find in my country. Thanks.

author: aqibi2000
author_rank: Regular Contributor
timestamp: September 09, 2021, 11:20:16 pm
content: Short to ground, how many ohms 7? 😂

author: OverclockVintage
author_rank: Contributor
timestamp: September 24, 2021, 12:15:46 am
content: Sorry for tanking so long to answer, well i've already replaced the chip, so it is not shorted anymore.