I replaced the VRAM of an RTX2080ti I previously repaired from 11GB to 22GB.
I hope this will be helpful for your modifications.
The following tools were used.
*This list is general, so some tools may not be used depending on the video.
*Amazon links use Amazon Associates. (Affiliate links)
If you are interested, please search for the product name.
●Preheater 853A
https://amzn.to/3JhbR8l
It's a little cheaper if you buy it on AliExpress.
●Heat gun 858D
https://amzn.to/3PRJlfn (no longer available)
A cheaper successor (?)
https://amzn.to/3TkD2V9
https://amzn.to/3voc0E9
A model with three temperature settings
https://amzn.to/3PnEKE0
●Soldering iron 1 Made in China (used for cleaning BGA patterns, etc.)
https://amzn.to/3RWR3GO
It's cheap and has a temperature adjustment function, so it's easy to use, but it heats up slowly... (probably the heater is for 200V, so it doesn't have enough power when used at 100V)
Low durability...
●Soldering iron 2 HAKKO FX600 (used for detailed work)
https://amzn.to/3PAJOms
Just buy this lol
●Soldering iron 3 goot RX-802AS (※Tip sold separately)
https://amzn.to/3yIQ0pg
Station type. Heats up quickly and the soldering iron part is light.
●Flux
Liquid
https://amzn.to/3ikgpBA
Gel
https://amzn.to/3OEpfV6
●Solder sucker goot CP-3015
https://amzn.to/3PyXD4Kœ
●Thermal camera Seek Thermal Compact
For iPhone
https://amzn.to/3z7fzMS
For Android
https://amzn.to/3jYa1R3
It has a reasonable resolution, so it's easy to identify heat-generating parts.
●Thermal camera HIKMICRO Mini2Plus V2. Compatible with iPhone/Android (TypeC)
https://amzn.to/40Kuqfb
It's a little expensive, but the high resolution makes it easy to identify heat-generating parts.
I use it for filming because there is a PC software, but if you want to identify heat-generating parts, Seek Thermal Compact is enough.
●Multi-Function-Tester LCR-TC1
https://amzn.to/3dZkwR0
I use it to test parts such as capacitors.
●2.4-inch TFT handheld oscilloscope
https://amzn.to/3pMQi6j
I modified it to have a built-in lithium ion (I'm currently using the OWON one below).
●OWON Handheld Digital Oscilloscope HDS272S
https://amzn.to/3W37JhX
For most junk repairs, this is fine.
●RIGOL DS1102Z-E Digital Oscilloscope
https://amzn.to/3vLwALj
I use the OWON one above when the measurements are difficult.
● Tester INFURIDER YF-90EPC
https://amzn.to/3cDsZbL
I use this to display the tester image in the video.
Normally, this is not necessary.
In fact, I do not recommend it because the mode switch often has poor contact. (I sometimes disassemble it and polish the contacts)
● Stabilized power supply KKmoon NPS605W
https://amzn.to/3cDaIvr (No longer available)
It has been modified so that the settings can be displayed on a PC via USB for video shooting.
It is not recommended for repairing junk items because the voltage range is wide and difficult to fine-tune. (It is especially difficult to adjust around 1V...)
● Stabilized power supply WZ6012
https://amzn.to/3H2nRKq
It can be connected to a PC via USB for video shooting.
However, since it is a module, it cannot be used as is. (A switching power supply and case are required)
I have made my own software for PCs.
●PTC heater 260℃ (used for BGA reballing)
https://ja.aliexpress.com/item/1005005110617424.html
It is for 220V, but can also be used with 100V. (However, heating will be slower)
※You will not be able to use it unless you connect the 100V power cord yourself.
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https://www.youtube.com/channel/UChnDfrxf3P8vkUvEpImin0Q/?sub_confirmation=1
0:00 Introduction
0:43 How to make it recognized as 22GB
4:00 Changing the chip resistor position
5:48 Quick check
6:38 Memory replacement
11:47 Check
13:08 Redo
14:18 Operation check
18:41 Summary
The following songs are used as background music.
shimtone / Naptime cheerfulness
https://dova-s.jp/bgm/play14471.html
shimtone / my story
https://dova-s.jp/bgm/play14051.html