Antec ISK100 Mini-ITX Case Power Supply Help

[jdub88]

I purchased an Antec mini itx case that came with a 90 watt power supply. There is a board in the case with a 20 pin to 24 pin jumper, as well as a cpu power connector, a couple of sata power connectors, and a molex. I'm running a Ryzen 5 3400g on an aorus b450 pro wifi, no discreet graphics card. I cannot get it to turn on. I brought it down to the bare minimum, cpu, noctua low profile cooler, 500gb m.2, and one stick of corsair vengeance 8gb 3000mhz. It will not boot. Can I just plug in a higher wattage power supply, or do I need to change out the board inside to accept a higher wattage?

[Bombastinator]

90w PSU?!  Eek.  That’s like some low power apu/iGPU with no discrete graphics.  Does this thing have a power brick hanging off the back btw?
 

I personally would change out everything.  What possessed you to buy a 90w PSU?

[Zando_]

Well the 3400G can eat over 100W:

But it should at least be able to turn on... Could be a really dodgy PSU and be broken though. There a reason you didn't go with the Inwin Chopin? It's $99, about the same size, has a 150W PSU, and is much better suited to AMD APU builds. 

[jdub88]

1 hour ago, Bombastinator said:

90w PSU?!  Eek.  That’s like some low power apu/iGPU with no discrete graphics.  Does this thing have a power brick hanging off the back btw?
 

I personally would change out everything.  What possessed you to buy a 90w PSU?

It came with the case, it's like a laptop psu. 

[Bombastinator]

It probably needs one of those nano PSU board s with a power brick attached.  Iirc they go up to like 300w or something.  The power bricks get big.

[jdub88]

1 hour ago, Zando Bob said:

Well the 3400G can eat over 100W:

But it should at least be able to turn on... Could be a really dodgy PSU and be broken though. There a reason you didn't go with the Inwin Chopin? It's $99, about the same size, has a 150W PSU, and is much better suited to AMD APU builds. 

The vesa mounting, tbh. I had planned on mounting it to the back of the screen. Just checked out the inwin, though, and it looks like I may be exchanging cases.

[Zando_]

2 minutes ago, jdub88 said:

The vesa mounting, tbh. I had planned on mounting it to the back of the screen. Just checked out the inwin, though, and it looks like I may be exchanging cases.

@Den-Fi can show you what's pretty much hardware porn shots of it too, if you want extra convincing. Though sadly it isn't vesa mountable AFAIK... how were you doing to mount this case to the back of the screen though? Chopin could be modded to be VESA mountable without too much trouble, but I don't see how you VESA mount something to the back of the monitor. Unless you mount it on the stand, then mount the monitor on it? 

[Guest]

37 minutes ago, Zando Bob said:

@Den-Fi can show you what's pretty much hardware porn shots of it too, if you want extra convincing. Though sadly it isn't vesa mountable AFAIK... how were you doing to mount this case to the back of the screen though? Chopin could be modded to be VESA mountable without too much trouble, but I don't see how you VESA mount something to the back of the monitor. Unless you mount it on the stand, then mount the monitor on it? 

 

YOU RANG?!!!!!

 

 

[VIVO-US]

I built a 4K media PC a couple years back in one of those Antec cases, although the build used a Pentium CPU that's within the PSU's limits.  It actually worked very well even with the limited available wattage!

 

The PC should still be able to turn on even if full load requirements are over the limit.  The front panel wiring isn't that great in this model, so I wouldn't be surprised if you have a broken wire connection going to the power switch (I had to repair a bad solder joint in my build before it would work).  If you unplug the power switch and use a small screwdriver to short those two pins on the motherboard, is it able to boot?