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RTX A2000-X3 | a cool&quiet tripple fan mod for the A2000
- Thread starter REVOCCASES
- Start date
"The shunt is just a low value resistor. The VRM controller considers this a fixed value, so by knowing the voltage drop across the shunt, it can calculate the current demand.
When you drop the resistance of the shunt, the VRM controller thinks you are pulling less current."
Would the custom BIOS let us directly change the current limit value of the VRM controller?
Or will the VRM controller still check 'electrically / physically' how much current is pulled and react accordingly?
Great results with RTX A2000, congratulations!Well, to be completely fair my curve was set to 1590MHz so...
Also paying a bit attention to my RTX A2000:
1. Used @REVOCCASES drawings for backplate and memory shim. Thank you very much!
2. Setup custom fan curve with Fan control and received zero prm mode
3. Then followed your guide to OC GPU
But still getting lower results than you, am I doing something wrong? Thank you for help in advance.
My GPU is shuntmodded on front and rear shunt resistorGreat results with RTX A2000, congratulations!
Also paying a bit attention to my RTX A2000:
1. Used @REVOCCASES drawings for backplate and memory shim. Thank you very much!
2. Setup custom fan curve with Fan control and received zero prm mode
3. Then followed your guide to OC GPU
But still getting lower results than you, am I doing something wrong? Thank you for help in advance.
P.S.: don't plan to do shunt mod.
Sadly no, nVidia still sign the VBIOS, so you can't flash modified VBIOS files
can edit the bios now:
www.techpowerup.com
NVIDIA BIOS Signature Lock Broken, vBIOS Modding and Crossflash Enabled by Groundbreaking New Tools
You can now play with NVIDIA GeForce graphics card BIOS like it's 2013! Over the last decade, NVIDIA had effectively killed video BIOS modding by introducing BIOS signature checks. With GeForce 900-series "Maxwell," the company added an on-die security processor on all its GPUs, codenamed...
Hello, i have also modded my RTX A2000 with triple fan mod inspired by @REVOCCASES and @robbee. With slight difference in heatsink and construction. Posting the result and pictures. Now finally quiet A2000 at light PC use and light noise while full load.
Used heatsink and fans:
Used heatsink and fans:
Looks great!Hello, i have also modded my RTX A2000 with triple fan mod inspired by @REVOCCASES and @robbee. With slight difference in heatsink and construction. Posting the result and pictures. Now finally quiet A2000 at light PC use and light noise while full load.
Used heatsink and fans:
thank you.
I'm selling now triple fan mod because moved to rtx 4060.
For those who interested visit this thread
Closed - [US-EU] Triple fan mod for Nvidia RTX A2000 [SOLD]
Hello. Want to sell my triple fan mod by @REVOCCASES wherein by myself was developed aluminum heatsink and case. GPU with this mod is working cool and quiet. Package include heatsink, triple 50mm fans, already soldered, 3d printed case, aluminum memory shim plate and aluminum backplate. Also...
smallformfactor.net
How did you Get the 3 Fans together so they only use one 4 Pin connector ?View attachment 2362
while I am still enjoying my A2000 single slot mod in the 1L Thinkstation P350 Tiny for daily work, I realized that it gets a little bit too noisy for my taste during gaming... the original NVIDIA cooler works OK-isch but I thought there is still room for improvement...
inspired by the discussions in my original A2000 cooler mod thread and @robbee 's latest work I came up with a custom cooler design that features three Silverstone 5010 fans, a skived copper heatsink from Aliexpress and a DIY memory shim...
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finally! a cool&quiet A2000
I soldered the cables in series (PWM, 12V, GND)
but there are also some ready made adapter cables on Amazon, eBay, etc...
I have a question for you learned folks of SFF.Net. My A2000 is shunt modded on the front and rear resistor. In addition I have a 12V line feeding the rear modded resistor from an HDPlex 250W GaN unit. However, when I plug the 6-pin PCIe connector (with the 12V pin only) into my CM 750W SFX unit, the PSU doesn't power on the system. On removal, the system boots just fine. Any idea why this could be?
Thanks, that may be it. Is there a workaround to this? I can solder well enough, but my technical expertise is more limited.
Works well on the HDPlex. I don't have another PSU to test with. The GPU is otherwise fine.
So it works with slot power, but cuts out when attaching the auxiliary power?
Can you show how you’ve wired it up? What resistors did you stack (or replace) for the shunt resistors?
The GPU works with slot power AND with auxiliary power, but only with the HDPlex. Doesn't with the CM PSU. I guess like @Snerual said..
I'd like the GPU to work with the CM 750 too. Is there a potential workaround?
Last edited:
You could try to grab the +12V from another rail... Maybe CPU or SATA
Ah I misunderstood - sounds like the protection mechanism kicks in because it's detecting voltage/current on the specific 12V rail without the relevant return path. I'd suggest as per REVO says above - do you know what the rail design/spec is on your PSU?
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