i've been unlucky lately with DreamPSU and a newer version of the PicoPSU, showing noises on the screen when powered on. My older PicoPSU seem to work just great without noise, and of course the original Dreamcast PSU doesn't show any noise at all. Seeing it would be a simple fix by doing the three 1k Ohms resistors twisted together and just slide one end in the 12V hole and the other end in a Ground hole, is great for me because i have no soldering tools here. i've been told that the 1/2 Watt model, instead of 1/4 Watt model, of 1k Ohms resistors would be better.
If you are seeing noise from the dream and pico PSU it is usually caused by your power brick. For most people there is no issue, but some reason some Dreamcasts don't like certain power bricks. It seems to typically happen only on the analog outputs though so if you are using a digital output, digital adapter, or a DCHDMI then it shouldn't have any issue.
@@vanfidelsmodding6700 it's a really complex situation on my side. I have a VA1 Dreamcast with a PicoPSU i bought around 2021. Never had problem with it. I even used this PicoPSU in a VA0 before, and it worked just great, with that power brick of 12V 5A that was previously used on a Sharp LCD TV. It worked great on both Dreamcast consoles. Now i thought if i buy another PicoPSU, it would be great too, but i have this noise problem, i tried MANY power supplies (at least 6 of them) of 12V 3A and more, including this 12V 5A power supply on it, and it DOES that noise problem. So with all the PSUs i tried on that new PicoPSU device, AND the fact that if i use the original power supply on the Dreamcast i'm not getting any noise, so the problem MUST be the new PicoPSU i just bought. Also, i noticed the PicoPSU i just got, is different than the one i bought years ago. Components aren't the same, and my older one doesn't have a blue LED on it, and the 2 wires going to the back of the console, are actually pointing down on the PCB, not up! So yeah, for some reasons, the new PicoPSU seem to have noise problems, while the older one doesn't do any noise, as far as i can see. So this is kinda why i wanna do that resistors mod, so the original power supply, which doesn't have any noise problem, should be just fine with that mod. I might even ask a friend if he could do the desoldering job on that regulator (i think this is what it is) you pointed at.
Quick question with the resistors when you’re inserting them, like are you just putting them inside the voltage part or just inside the same house next to them, because it seems simple and I never really worked with resistors before so this is all new to me
They just need to be touching the metal and stay in. I try to get them in between the housing and the pin with as much metal contact as possible. You could even put a small dab of hot glue on them as it will keep them in place and does not damage electronics
If someone wants to, they could solder the resistors into place. I would not use any glue. Yes Hot glue once cooled can act as a insulator, but it can also melt if the resistors started to get warm.
In the lower right corner there is a hole in the GDEMU but you can't put a screw in it because there is nothing on the Dreamcast in that spot where a screw can be screwed in.
Dear mr Vanfidel, AWESOME JOB! Got your tray, fits like a glove and really great job on the research about those resistors. My unit is a little cooler and not too overly paranoid about it now :)
Which end of the resistor goes in the 12v slot the end with the gold stripe or end with the brown stripe?if you or a commenter could help I'd appreciate it.thanks
You wouldn't use a 300 Ohm resistor, you'd use a 330 Ohm resistor. That's why people use the three 1K Ohm resistors because those in parallel would be 333 Ohms. 333 Ohms is pretty much the same as 330 Ohms.
If I've already removed the 12v voltage regulator, should I use the resistors as well? Others have said to remove the regulator and that would take care of the heat, but I want to know if doing this as well would be overkill or harm the system.
If you removed the 12v than there is no need to install resistors since there's no power there at all. It wouldn't hurt but they wouldn't be doing anything
You want the higher watt resistors, if you use 1/2 or 1/4 watt you need 3 resistors put together in parallel (3 twisted together side by side) with a higher 1 watt resistors, you can get away with one or two resistors. You run the lower watt resistors in parallel as they dont get the full brunt of the load and burn out. The bigger 1 watt resistors are design for the load and heat. You want a min of 300 ohms, but as the video said, a higher resistance is prefered.
hello, can you help me please ... I burned the resistance of the control panel, they indicated that it was 10 Ohz, but on aliexpress there are 10K, 10M, 10R .... do you know what it has to be? I speak Spanish, I hope you understand.
ONLY use ONE 330 Ohm resistor. Just make sure it's at least a 1/4 Watt, but 1/2 Watt is even better. The GD-ROM drive is supposed to be around 330 Ohm, so that's why people will sometimes use three 1K Ohm resistors in parallel, because that would equal 333 Ohms. Putting resistors in series, raises the resistance. Putting resistors in parallel lowers the resistance. If you put your four 330 Ω in parallel, then you'd get a total resistance of 82.5 Ω. So WAAAAY weaker than a single 330Ω resistor. While putting them in series (one after the other) would get you a total resistance of 1,320 Ω.
i've been unlucky lately with DreamPSU and a newer version of the PicoPSU, showing noises on the screen when powered on. My older PicoPSU seem to work just great without noise, and of course the original Dreamcast PSU doesn't show any noise at all.
Seeing it would be a simple fix by doing the three 1k Ohms resistors twisted together and just slide one end in the 12V hole and the other end in a Ground hole, is great for me because i have no soldering tools here.
i've been told that the 1/2 Watt model, instead of 1/4 Watt model, of 1k Ohms resistors would be better.
If you are seeing noise from the dream and pico PSU it is usually caused by your power brick. For most people there is no issue, but some reason some Dreamcasts don't like certain power bricks. It seems to typically happen only on the analog outputs though so if you are using a digital output, digital adapter, or a DCHDMI then it shouldn't have any issue.
@@vanfidelsmodding6700 it's a really complex situation on my side. I have a VA1 Dreamcast with a PicoPSU i bought around 2021. Never had problem with it. I even used this PicoPSU in a VA0 before, and it worked just great, with that power brick of 12V 5A that was previously used on a Sharp LCD TV. It worked great on both Dreamcast consoles.
Now i thought if i buy another PicoPSU, it would be great too, but i have this noise problem, i tried MANY power supplies (at least 6 of them) of 12V 3A and more, including this 12V 5A power supply on it, and it DOES that noise problem. So with all the PSUs i tried on that new PicoPSU device, AND the fact that if i use the original power supply on the Dreamcast i'm not getting any noise, so the problem MUST be the new PicoPSU i just bought.
Also, i noticed the PicoPSU i just got, is different than the one i bought years ago. Components aren't the same, and my older one doesn't have a blue LED on it, and the 2 wires going to the back of the console, are actually pointing down on the PCB, not up!
So yeah, for some reasons, the new PicoPSU seem to have noise problems, while the older one doesn't do any noise, as far as i can see. So this is kinda why i wanna do that resistors mod, so the original power supply, which doesn't have any noise problem, should be just fine with that mod. I might even ask a friend if he could do the desoldering job on that regulator (i think this is what it is) you pointed at.
Sorry to comment on an old vid but do you think a 330R ohm 1W resistor will be okay to use?
stupid question.. i'm a complete novice, but why dont the resistors need soldering like the other fuses etc?
Quick question with the resistors when you’re inserting them, like are you just putting them inside the voltage part or just inside the same house next to them, because it seems simple and I never really worked with resistors before so this is all new to me
They just need to be touching the metal and stay in. I try to get them in between the housing and the pin with as much metal contact as possible. You could even put a small dab of hot glue on them as it will keep them in place and does not damage electronics
@@vanfidel Thank you, ill try my best when everything arrives
If someone wants to, they could solder the resistors into place. I would not use any glue. Yes Hot glue once cooled can act as a insulator, but it can also melt if the resistors started to get warm.
Will the tray leave space for me to install DCHDMI?
Yes the DCHDMI goes under the motherboard so you will be fine with space.
In the lower right corner there is a hole in the GDEMU but you can't put a screw in it because there is nothing on the Dreamcast in that spot where a screw can be screwed in.
Dear mr Vanfidel,
AWESOME JOB! Got your tray, fits like a glove and really great job on the research about those resistors. My unit is a little cooler and not too overly paranoid about it now :)
Just purchased one of your top loading kits today. Pretty excited to install it
Bought your tray on ebay, fits like a charm, really easy installation, thanks...
Hi, don't you need to weld the resistors? Just installing them as you showed? Tx
Thanks for the video just got my GDEMU running yesterday.
It's quite hard to see where you insert resistors. Do you have close images of the process? How do I know I set it correctly?
Excellent video. Looking forward to doing the same in a few weeks.
rad.
Which end of the resistor goes in the 12v slot the end with the gold stripe or end with the brown stripe?if you or a commenter could help I'd appreciate it.thanks
Resistors are not directional so it doesnt matter
@@vanfidelsmodding6700 thank you!
I added a dchdmi mod, pico power supply and GDEMU to my Dc last week.
You wouldn't use a 300 Ohm resistor, you'd use a 330 Ohm resistor. That's why people use the three 1K Ohm resistors because those in parallel would be 333 Ohms. 333 Ohms is pretty much the same as 330 Ohms.
no, it´s not, ohm's law my friend
@@CPU386 go on genius, prove me wrong.
Hey would you be able to update the link on the resistors you used?
It is updated. Cheers
are u using 3x1000ohm
If I've already removed the 12v voltage regulator, should I use the resistors as well? Others have said to remove the regulator and that would take care of the heat, but I want to know if doing this as well would be overkill or harm the system.
If you removed the 12v than there is no need to install resistors since there's no power there at all. It wouldn't hurt but they wouldn't be doing anything
The 1000 ohm resisters that you use, are they 1/2 or 1/4 watts? Or does it not matter?
You want the higher watt resistors, if you use 1/2 or 1/4 watt you need 3 resistors put together in parallel (3 twisted together side by side) with a higher 1 watt resistors, you can get away with one or two resistors. You run the lower watt resistors in parallel as they dont get the full brunt of the load and burn out. The bigger 1 watt resistors are design for the load and heat. You want a min of 300 ohms, but as the video said, a higher resistance is prefered.
hello, can you help me please ... I burned the resistance of the control panel, they indicated that it was 10 Ohz, but on aliexpress there are 10K, 10M, 10R .... do you know what it has to be? I speak Spanish, I hope you understand.
Can you post a photo with the part in question circled?
Do the resistors have to be installed in any particular orientation
No they are not directional
@@vanfidel thank you sir
you just need a 2 watt 333 ohm resistor
Are the resistors necessary? Or optional? Thanks
Optional, but you're PSU will probably eventually die to being run too not.
Nice, thanks.
would 4 330 ohm resistors in series/parallel also work cause i have tons of those lying around
ONLY use ONE 330 Ohm resistor. Just make sure it's at least a 1/4 Watt, but 1/2 Watt is even better.
The GD-ROM drive is supposed to be around 330 Ohm, so that's why people will sometimes use three 1K Ohm resistors in parallel, because that would equal 333 Ohms.
Putting resistors in series, raises the resistance. Putting resistors in parallel lowers the resistance.
If you put your four 330 Ω in parallel, then you'd get a total resistance of 82.5 Ω. So WAAAAY weaker than a single 330Ω resistor. While putting them in series (one after the other) would get you a total resistance of 1,320 Ω.