Installing A1200 ROMs - which is which?

alphonsus · 07 July 2008, 19:22

I've just got a pair of 3.1 ROMs for my 1200, with instructions tht say put the upper ROM in socket U6B and the lower in U6A.

Thing is, which ROM chip is which?
I have 391773-01 (28663A) and 391774-01 (29147A)

I assume 391773 is lower and 391774 is upper, can anyone confirm this?

Many thanks.

Zetr0 · 07 July 2008, 19:49

U6A
9351
391523-01

U6B
9350
391524-01

I hope that helps

thomas · 07 July 2008, 19:50

Just try it out. If you put the wrong chip into the wrong socket, simply nothing happens when you switch the Amiga on. Only make sure that you put them in in the right direction, i.e. the notch on the chip over the notch on the socket.

Boot_WB · 07 July 2008, 19:54

391773 is the one near the front, 391773 is the one near the back.

You can just make it out the chip markings on http://www.amiga-hardware.com/downlo...lgreen_top.jpg

Regards

Rich

Toni Wilen · 07 July 2008, 20:01

Note that ROM pin 1 goes to socket hole 2. Socket holes 1 and 42 (left side) will be empty. (Image above isn't 100% clear)

Pin 1 in socket hole 1 = mainboard and/or rom chip(s) gets damaged.
(You said it came with instructions but this accident can happen very easily..)

alphonsus · 07 July 2008, 20:28

Quote:

Originally Posted by Toni Wilen

Note that ROM pin 1 goes to socket hole 2. Socket holes 1 and 42 (left side) will be empty. (Image above isn't 100% clear)

Pin 1 in socket hole 1 = mainboard and/or rom chip(s) gets damaged.
(You said it came with instructions but this accident can happen very easily..)

Yes, the instructions made that clear.

Thanks all for your help. KS3.1 tomorrow followed by OS3.9!

rkauer · 08 July 2008, 00:00

Hey Alphie, I'm not want to humiliate anyone, but my A1200T have ROM3.9 (yeah, special burned version). Even with Tony's FFS fix.

alphonsus · 08 July 2008, 08:44

@rkauer

Showoff!

A little beyond my technical expertise and facilities.

rkauer · 09 July 2008, 00:14

Quote:

Originally Posted by alphonsus

@rkauer

Showoff!

A little beyond my technical expertise and facilities.

Here is a shot of it out of A1200. Inside will be another matter, since the Miggy is "on service"...

Sorry for the blurry picture. The ROMs are MX27C4100DC, burned from a friend of mine in Japan.

Hey, Arda, if you read this, I will pay that other package soon.

Works like a charm on mine A1200, goodbye for good to dual-boot.

Zetr0 · 09 July 2008, 00:24

@rkauer

my friend, what speed are those 27c4100's ?

rkauer · 09 July 2008, 01:02

100ns.

alphonsus · 09 July 2008, 02:05

I'm guessing you don't have the double-reset issue with these ROMs?

rkauer · 09 July 2008, 03:43

Quote:

Originally Posted by alphonsus

I'm guessing you don't have the double-reset issue with these ROMs?

Not anymore. Yay.

coze · 09 July 2008, 04:16

LOL sudden surge of embarrasement

credits go to doobrey, piru for their excellent software and motorollin & the kickrom burning thread at EAB, not me

rkauer · 09 July 2008, 05:37

Quote:

Originally Posted by coze

LOL sudden surge of embarrasement

credits go to doobrey, piru for their excellent software and motorollin & the kickrom burning thread at EAB, not me

Didn't notice you have another "name" in here, m8!

Of course, those chaps deserves credit, too. But if you didn't "burn" the chips I still be in the 1 minute plus situation.

For who doesn't know:

Doobrey: mus, romsplit and remus
Piru: great coder, responsible for blizkick (among a lot of other great programs and patches)
Motorollin: for general advices in burning ROM on A.org.

Top blokes, if someone wants to know.

alphonsus · 09 July 2008, 17:45

3.1 now in, 3.9 now on, just need my BVision drivers back and try to get my Z-IV mediator working. Took some pics on the way - pr0n for Zetr0 later.

07 July 2008, 19:22	#1
alphonsus Registered User Join Date: Apr 2008 Location: UK Age: 39 Posts: 181	Installing A1200 ROMs - which is which? I've just got a pair of 3.1 ROMs for my 1200, with instructions tht say put the upper ROM in socket U6B and the lower in U6A. Thing is, which ROM chip is which? I have 391773-01 (28663A) and 391774-01 (29147A) I assume 391773 is lower and 391774 is upper, can anyone confirm this? Many thanks.

07 July 2008, 19:49	#2
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 38 Posts: 9,185	U6A 9351 391523-01 U6B 9350 391524-01 I hope that helps __________________ Luscious Linkie Time:- www.AmiBay.com Old Skooler

07 July 2008, 19:50	#3
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 3,901	Just try it out. If you put the wrong chip into the wrong socket, simply nothing happens when you switch the Amiga on. Only make sure that you put them in in the right direction, i.e. the notch on the chip over the notch on the socket. __________________ Home: thomas-rapp.homepage.t-online.de Email: thomas-rapp@web.de

08 July 2008, 00:00	#7
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 47 Posts: 3,477	Hey Alphie, I'm not want to humiliate anyone, but my A1200T have ROM3.9 (yeah, special burned version). Even with Tony's FFS fix. __________________ Amigan since 1989 Known drunk since 1982 (don't know quite well, I was drunk) 13 Amigas at home Finally a Z3 one! I'll stick with 'Cachaça do Inter' for this week: Chivas gives headaches! :D

09 July 2008, 00:24	#10
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 38 Posts: 9,185	@rkauer my friend, what speed are those 27c4100's ? __________________ Luscious Linkie Time:- www.AmiBay.com Old Skooler

07 July 2008, 19:54	#4
Boot_WB Novice in the Black Arts Join Date: Nov 2004 Location: Kingston upon Hull Age: 37 Posts: 263	391773 is the one near the front, 391773 is the one near the back. You can just make it out the chip markings on http://www.amiga-hardware.com/downlo...lgreen_top.jpg Regards Rich

07 July 2008, 20:01	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 38 Posts: 11,941	Note that ROM pin 1 goes to socket hole 2. Socket holes 1 and 42 (left side) will be empty. (Image above isn't 100% clear) Pin 1 in socket hole 1 = mainboard and/or rom chip(s) gets damaged. (You said it came with instructions but this accident can happen very easily..)

08 July 2008, 08:44	#8
alphonsus Registered User Join Date: Apr 2008 Location: UK Age: 39 Posts: 181	@rkauer Showoff! A little beyond my technical expertise and facilities.

09 July 2008, 01:02	#11
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 47 Posts: 3,477	100ns. __________________ Amigan since 1989 Known drunk since 1982 (don't know quite well, I was drunk) 13 Amigas at home Finally a Z3 one! I'll stick with 'Cachaça do Inter' for this week: Chivas gives headaches! :D

09 July 2008, 02:05	#12
alphonsus Registered User Join Date: Apr 2008 Location: UK Age: 39 Posts: 181	I'm guessing you don't have the double-reset issue with these ROMs?

09 July 2008, 04:16	#14
coze hastala vista winny vista Join Date: Feb 2006 Location: mt fuji Age: 35 Posts: 1,333	LOL sudden surge of embarrasement credits go to doobrey, piru for their excellent software and motorollin & the kickrom burning thread at EAB, not me

09 July 2008, 17:45	#16
alphonsus Registered User Join Date: Apr 2008 Location: UK Age: 39 Posts: 181	3.1 now in, 3.9 now on, just need my BVision drivers back and try to get my Z-IV mediator working. Took some pics on the way - pr0n for Zetr0 later.

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