Where can I learn to trim a motherboard!

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bacteria
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Post by bacteria »

nitro2k01 wrote:What's the blue rectangle for? Has anyone ever attempted to do a N64p without cart slot? o_O
Yes, one of the mods tried, think it was marshallh? Can't find the thread at the moment, nothing has been posted on it for a while, so no idea if the project was on hold or became too difficult or just failed. Idea is rather than connecting a cart slot to the corresponding pins is to connect the cart slot directly to their corresponding contacts on the chip directly. Same process of work as any other relocation, in principle.

Reason I put a blue rectangle and called it "nuts" was that you would need to rewire literally dozens of contacts, most of which go to the cart slot pins, and solder mostly to very small pins on the chips. Can be done, looking at the board now - achievable, but an awful lot of work to save about 20mm off the board.

In regards to making the board slimmer, I think it can be done and I will be trying the technique in my next project.

It has been shown by hailrazer that actually the N64 doesn't need heatsinks and a fan, using the stock metal solid heatsinks and the metal plate you get standard with an N64 is fine, and works ok even when trimmed and put into a portable with no airflow.

My idea is therefore to remove the stock heatsink blocks entirely and stick the gunk from above the chips directly to the metal plate; relocate and remove components (eg reset button, etc), you then end up with quite a low board - about 50% slimmer in fact. You can also use the metal plate to secure the cart slot onto! Happy of course if someone else wants to try this method out before I do, which is why I am sharing it.
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Kyo
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Post by Kyo »

SifuF did the blue thing, check out his thread here:
http://forums.benheck.com/viewtopic.php?t=27519
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Post by nitro2k01 »

Kyo wrote:SifuF did the blue thing, check out his thread here:
http://forums.benheck.com/viewtopic.php?t=27519
Excuse me while I go change my pants!
bacteria wrote:Reason I put a blue rectangle and called it "nuts" was that you would need to rewire literally dozens of contacts, most of which go to the cart slot pins, and solder mostly to very small pins on the chips. Can be done, looking at the board now - achievable, but an awful lot of work to save about 20mm off the board.

In regards to making the board slimmer, I think it can be done and I will be trying the technique in my next project.
Yeah, a more sensible way of doing this if you're not insanely skilled like SifuF, would be to desolder the cart slot. That way you get easily accessible holes to mount the extension wires in, plus the wires are properly placed to go onto the cartridge.
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Last edited by nitro2k01 tomorrow, 1:48 pm; edited 1 time in total
bacteria
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Post by bacteria »

Rewiring isn't "insanely skilled", just needs a multimeter and steady soldering skills as well as being methodical and taking your time. A lot of portablizers on this site are perfectly capable of such work and getting the same results.
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Post by Kyo »

Why do you keep undermining SifuFs great work? Sure, there may not be a whole lot of technical know how involved in the process, but it requires great patience and steady hands, and requires, as such "insane skills"
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Post by nitro2k01 »

Kyo wrote:Why do you keep undermining SifuFs great work? Sure, there may not be a whole lot of technical know how involved in the process, but it requires great patience and steady hands, and requires, as such "insane skills"
Which was exactly my point. :)
I'm sure that I too could do that mod, given enough time and patience. But it's also easy to copulate up. Cut in the wrong place, connect the wrong pin to the wrong place so you fry the CPU, put a big blob of solder over the surface mount IC pins and so on. The trick is to get everything right at the same time, and that's what requires skill. The more complex the task, the more skill required.
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Last edited by nitro2k01 tomorrow, 1:48 pm; edited 1 time in total
Kyo
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Post by Kyo »

if you're going to do a mod like that, I'd get a second cart slot (somehow) and solder that on there before cutting off the original one. That way you can still see if the board is fried, or if your wiring is just incorrect. It just makes everything much easier.
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Post by Rekarp »

Kyo wrote:if you're going to do a mod like that, I'd get a second cart slot (somehow) and solder that on there before cutting off the original one. That way you can still see if the board is fried, or if your wiring is just incorrect. It just makes everything much easier.
Makes it easier to check your work to.
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Post by timmeh87 »

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Post by deviouskoopa »

bacteria wrote:Rewiring isn't "insanely skilled", just needs a multimeter and steady soldering skills as well as being methodical and taking your time. A lot of portablizers on this site are perfectly capable of such work and getting the same results.
How do you use a multimeter to check which connections need to be made? I'm guessing run a small current through 1 side and measure the other until you find the pin/lead with a voltage? Maybe not...
(serious question heh)
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Post by jleemero »

deviouskoopa wrote:
bacteria wrote:Rewiring isn't "insanely skilled", just needs a multimeter and steady soldering skills as well as being methodical and taking your time. A lot of portablizers on this site are perfectly capable of such work and getting the same results.
How do you use a multimeter to check which connections need to be made? I'm guessing run a small current through 1 side and measure the other until you find the pin/lead with a voltage? Maybe not...
(serious question heh)
It's called a continuity test, though I find myself using resistance more than continuity.
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Post by deviouskoopa »

jleemero wrote:
deviouskoopa wrote:
bacteria wrote:Rewiring isn't "insanely skilled", just needs a multimeter and steady soldering skills as well as being methodical and taking your time. A lot of portablizers on this site are perfectly capable of such work and getting the same results.
How do you use a multimeter to check which connections need to be made? I'm guessing run a small current through 1 side and measure the other until you find the pin/lead with a voltage? Maybe not...
(serious question heh)
It's called a continuity test, though I find myself using resistance more than continuity.
Ahhh resistance... should've thought of that.
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Post by 64M320N3 »

nitro2k01 wrote:What's the blue rectangle for? Has anyone ever attempted to do a N64p without cart slot? o_O
Without a card slot?
You mean like soldering a game to the board?
(kinda useless if you ask me)
if you mean soldering the card slot directly to the board, then yes, check Sifuf's new N64p
I don't think anything can match it's pure awesomeness...
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