Hello again,
Sorry for (yet) another Cube question.
So, the VRM. Important to keep cool, and/or change it if you're going to be adding a bunch of extra components.. e.g. CPU, newer GPU, etc..
For a hobby, I'm having a hard time justifying the $200 for the Stratos one.. not saying it's a bad product, I'm sure it's great. But the CPU upgrade pretty much tapped me out on how much I want to spend on the pursuit of playing older Mac games.
So, I was thinking. Relocating it seems easy enough.. move it to the DVD area. A cable to do so wasn't too hard to find. Basically a 30 pin male to female. eBay to the rescue.
This should let it run a bit cooler as it's not sharing the same space as the video card.. (and damn, does a 7500 throw off some heat). I do have a fan in my Cube, but it doesn't seem to move any air around the GPU/VRM area.
Next, I found an older post here about adding additional mosfets to the Cube VRM (something about being able to add 4 on each side vs. the 3 it shipped with). Check out the last post on this page:
So, I took a look on the specs on the listed Mosfet part number, turns out it's been discontinued. No surprise given the age.. which got me thinking about replacing it with something rated a little higher. Soldering isn't a problem for me, I've done much finer pitch stuff. I (think) I've found this part which would allow almost twice the amperage.. (19A vs. 10A). Maybe the combo of moving it, plus swapping these out would do the trick?
Thoughts?
Original: https://www.digikey.ca/products/en?keywords=Si4840DY
Replacement: https://www.digikey.ca/products/en/discrete-semiconductor-products/transistors-fets-mosfets-single/278?k=MOSFET+40V+8-SOIC&k=&pkeyword=MOSFET+40V+8-SOIC&sv=0&pv612=6877&sf=0&FV=9780001%2C1f140000%2C1f240003%2C1f280001%2Cmu40V|2068%2Cffe00116%2C13500001&quantity=&ColumnSort=0&page=1&pageSize=25
Sorry for (yet) another Cube question.
So, the VRM. Important to keep cool, and/or change it if you're going to be adding a bunch of extra components.. e.g. CPU, newer GPU, etc..
For a hobby, I'm having a hard time justifying the $200 for the Stratos one.. not saying it's a bad product, I'm sure it's great. But the CPU upgrade pretty much tapped me out on how much I want to spend on the pursuit of playing older Mac games.
So, I was thinking. Relocating it seems easy enough.. move it to the DVD area. A cable to do so wasn't too hard to find. Basically a 30 pin male to female. eBay to the rescue.
This should let it run a bit cooler as it's not sharing the same space as the video card.. (and damn, does a 7500 throw off some heat). I do have a fan in my Cube, but it doesn't seem to move any air around the GPU/VRM area.
Next, I found an older post here about adding additional mosfets to the Cube VRM (something about being able to add 4 on each side vs. the 3 it shipped with). Check out the last post on this page:
So, I took a look on the specs on the listed Mosfet part number, turns out it's been discontinued. No surprise given the age.. which got me thinking about replacing it with something rated a little higher. Soldering isn't a problem for me, I've done much finer pitch stuff. I (think) I've found this part which would allow almost twice the amperage.. (19A vs. 10A). Maybe the combo of moving it, plus swapping these out would do the trick?
Thoughts?
Original: https://www.digikey.ca/products/en?keywords=Si4840DY
Replacement: https://www.digikey.ca/products/en/discrete-semiconductor-products/transistors-fets-mosfets-single/278?k=MOSFET+40V+8-SOIC&k=&pkeyword=MOSFET+40V+8-SOIC&sv=0&pv612=6877&sf=0&FV=9780001%2C1f140000%2C1f240003%2C1f280001%2Cmu40V|2068%2Cffe00116%2C13500001&quantity=&ColumnSort=0&page=1&pageSize=25