---====UPDATE====---- A3000 Rom help needed

[da9000]

@amesie2:

Another tip: on some A3000D motherboards (mine), the labels for the even and odd ROM (ROM0 and ROM1) are reversed, so if you get nothing (black screen), perhaps you must switch the ROMs. For example, on mine, ROM0 goes into U181, and ROM1 into U180.

Switching them around is not going to cause any damage, as long as you line up the pins and the "notches" at the end of the chips with those on the socket/motherboard diagram.

Good luck!

[da9000]

@amesie2:

I've not tried with all 4 chips in.

What I meant is to swap the even/odd (ROM0/ROM1) chips within 2 sockets. For example, if you have the mouse/keyboard ports facing you, while looking at the board (assuming 3000D here), then you have 4 sockets from left to right: A, B, C, D. I meant, put ROM1 in A, ROM0 in B, and leave C and D blank.

If you've done that, well then, I'm sorry to hear it didn't work :-(


@eslapion:

Like I said, on *some* A3000 motherboards (mine), the *labels* (aka: silkscreen) are reveresed.

So if I followed the silkscreen labels (U180 says ROM0 and U181 says ROM1), I would have ROM0 chip on U180 and ROM1 chip on U181. Then the motherboard doesn't work.

With the motherboard *working* the chip located on U180 says ROM1 on it, and the chip located on U181 says ROM0 on it.

[da9000]

eslapion wrote:
I had to tell the gentleman who provided them to me that he didn't have a clue what he was doing.

Yes, I've noticed that's pretty much your style... even though:

eslapion wrote:
I didn't get to see too many A3000 Motherboards in my life

[da9000]

amesie2 wrote:
Thanx everyone for the help I am confident the new roms will get me running again.

All is well that ends well :-)

I'm still interested though in someone chipping in on TJ's question:

TJLazer wrote:
 Yes I had to get these special "ROM Tower" ROMs for the rear sockets to make it work in my 3000.

BTW, anyone know what kind of ROMs these special ROMs are?

[da9000]

@mikolas:

Thank you for the explanation!
Could you tell us what revision is your A3000 motherboard?
Mine is (with the reversed silkscreen) is 9/03 @ 16Mhz.

@eslapion:
Interesting findings! Good research.
Pasting some links would be great ("From what I read, a ROM tower... allows the use of 27c400...").