| Author |
Topic |
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foetoid
Full Member
USA
554 Posts |
 Posted - 04 Jun 2002 : 16:26:03
SE can handle 4 megs of RAM right? That's what I thought.... Well, I have 4 1meg simms in there and it only reads two of them... what's wrong?________________
foetoid, that's (fee-toy-d)
http://www.foetoid.doesntexist.com |
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 04 Jun 2002 : 21:13:11
quote:
SE can handle 4 megs of RAM right? That's what I thought.... Well, I have 4 1meg simms in there and it only reads two of them... what's wrong?
you probably have the mobo that needs to have a resistor clipped to address that much memory! google time! it should be easy to find!jt  ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF Edited by - Trash80toG-4 on 04 Jun 2002 21:14:20 |
maclover5
LC Doctor/Hot Rodder
Australia
5830 Posts |
Posted - 04 Jun 2002 : 23:16:55
quote:
quote:
SE can handle 4 megs of RAM right? That's what I thought.... Well, I have 4 1meg simms in there and it only reads two of them... what's wrong?
you probably have the mobo that needs to have a resistor clipped to address that much memory! google time! it should be easy to find!jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF Edited by - Trash80toG-4 on 04 Jun 2002 21:14:20
No. You only clip the resistors on a Plus. -------------------------- Pizzabox LCs RULE!!!!!!! Warrior maclover5
68k Macintosh Liberation Army
Number of 68ks Liberated: 6
|
GORDOOM
Junior Member
Canada
208 Posts |
Posted - 05 Jun 2002 : 04:42:00
I can't remember: does the SE have the same problem with two-chip SIMMs as the Plus does? Could that be the issue?GORDOOM
Commander, Academic Operations Reserve
(University of Toronto, St. George Campus)
total Macs liberated: 19
(as of May 29, 2002) "...the people who are crazy enough to think they can change the world are the ones who do." |
thelip
Full Member
USA
729 Posts |
Posted - 05 Jun 2002 : 05:24:19
quote:
No. You only clip the resistors on a Plus.
No, you have to on the SEs if you're adding 1 meg simms. I'll take a pic of mine this afternoon and post it (you caught me at a good time, it was going in the trash today.). BTW, i have a later superdrive model that has a jumper instead of the resistors. Sgt. Thelip
Heavy Weapons Specialist
950 division
Liberated Macs: 12 Creator and Keeper of
THE NEWTON STYLUS ALLIANCE |
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 05 Jun 2002 : 06:04:57
quote:
quote:
No. You only clip the resistors on a Plus.
No, you have to on the SEs if you're adding 1 meg simms. I'll take a pic of mine this afternoon and post it (you caught me at a good time, it was going in the trash today.). BTW, i have a later superdrive model that has a jumper instead of the resistors.
i think later revs of the 800k SE also had a jumper configuration fix, but i'm almost certain there is a clipped resistor on the mobo of mine!jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
foetoid
Full Member
USA
554 Posts |
Posted - 05 Jun 2002 : 07:00:44
That's a important little tidbit of info I forgot to add, it's a SuperDrive model.... unfourtunately the DVD-Rs just are a little too big to fit in there.... lol________________
foetoid, that's (fee-toy-d)
http://www.foetoid.doesntexist.com |
thelip
Full Member
USA
729 Posts |
Posted - 05 Jun 2002 : 10:44:47
ooohhhh... then there should be a black jumper around the same area of where this resistor has been clipped. the mobo that i have with four megs of ram has the jumper removed and it works fine. good luck. If you want i'll crack open my superdrive SE and photo that, but it's quite obvious. http://homepage.mac.com/avavricek/PhotoAlbum4.html p.s. i didn't do that "clipping" the soldering job sucks. i bought it like that and it was dead. might have been because of that.
Sgt. Thelip
Heavy Weapons Specialist
950 division
Liberated Macs: 12
Creator and Keeper of
THE NEWTON STYLUS ALLIANCE |
Marchie
Chaplain
USA
911 Posts |
Posted - 05 Jun 2002 : 19:27:03
Here comes your mod...Look at your board. Find resisters (could be jumpers) R35 and R36. Both of them need to be removed. R35 is labled "256 KBIT" and should only be there if both rows have 256Kb SIMMs in them. R36 is the "ONE ROW" resistor, and makes SIMM sockets 3 and 4 not work (Row One is 1 and 2, Row 2 is 3 and 4.. the sockets are wired in series) I'll BET that your problem is R36. ~Marchie ~Chaplain Marchie Holder of the Compact Mac -
-Stick of Justice, with Explodeing CRT head
-Wand of Power with Shocking Flyback Transformer Tip
~~"We are all Mad here"~~ |
Marchie
Chaplain
USA
911 Posts |
Posted - 05 Jun 2002 : 19:34:44
OH! I forgot.. thatonly works onthe original SE mother board.. you might have a modified or DIP SIMM board. You can identify this in the follow way:to the RIGHT of the 68000 processor you will see "DIP SIMM MAC SE, 820-0250-A 1988, 630-4250" in THIS case, find J16 at grid ref F4 and remove the jumper. bingo, 4MB are available. Both these instructions have been paraphraised out of "Mac Classic & SE Repair and Upgrade Secrets" by Larry Pina. ~Marchie ~Chaplain Marchie Holder of the Compact Mac -
-Stick of Justice, with Explodeing CRT head
-Wand of Power with Shocking Flyback Transformer Tip
~~"We are all Mad here"~~ |
scchicago
Full Member
USA
936 Posts |
Posted - 06 Jun 2002 : 06:14:49
THELIP, can i put the superdrive from your superdrive SE and put it in my dual-800k SE? How much for the superdrive? You were gonna trow it out anyway right?_________________
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Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 06 Jun 2002 : 06:35:42
quote:
THELIP, can i put the superdrive from your superdrive SE and put it in my dual-800k SE? How much for the superdrive? You were gonna trow it out anyway right?
if the ROMs are still alive and available or you can get them elsewhere, that oughta work. i think maybe you need a SWIM chip for that upgrade too. somebody will post the right info here soon, or i'm pretty sure you could search for the thread from a while back on fritter for that info.jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
scchicago
Full Member
USA
936 Posts |
Posted - 06 Jun 2002 : 07:43:21
hmm, so my SE right now as it stands can't use an Apple Superdrive?
DANG!
Oh well. Back to the table in the corner it goes._________________
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Website:
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thelip
Full Member
USA
729 Posts |
Posted - 06 Jun 2002 : 08:25:24
scchicago - i might have a superdrive or two around here. I pick them up at a surplus place every time i go for free. I might be going this weekend and i'll pick up a few extra. Whenever i get a mac without a superdrive, i drop one in. I've never had problems doing that. Trash80toG-4 - I'm not familiar with the swim chip. Is it the IWM chip? near the roms? (i guess it could be SIWM, but there is a silver dot right at the beginning where the s could be) Both of the normal SEs that i picked up both had those chips. if those are the ones you're talking about. I had began with 3 SEs. Two were sad macs and one didn't display, but would beep at me after a while (making me assume that everything else was working.) I swapped the one with the dead display's hdd, superdrive, and mobo to a sad SE. That worked. I also swapped the three Rom chips (high, low and that ?IWM) to the other sad mac and that's working. i did that because the mobo was in rough shape.) I trashed the psu, mobo and case. I kept the roms, and i don't think they work, but if anybody wants them i can probably mail them to you. Just pay the shipping which probably isn't much. So the point is, I've got too much free time, and i'll look into getting some superdrives. Give me a week or so. Sgt. Thelip
Heavy Weapons Specialist
950 division
Liberated Macs: 12 Creator and Keeper of
THE NEWTON STYLUS ALLIANCE |
foetoid
Full Member
USA
554 Posts |
Posted - 06 Jun 2002 : 09:44:22
I messed with the 2/4 Meg jumper and I still only had 2 megs showin up... hmmm.....________________
foetoid, that's (fee-toy-d)
http://www.foetoid.doesntexist.com |
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 06 Jun 2002 : 10:17:47
quote:
I messed with the 2/4 Meg jumper and I still only had 2 megs showin up... hmmm.....
swap the SIMMs in the two banks and see if ALL your memory goes away or play mix-n match in one bank in a 2 meg config, maybe one SIMM is DOA?jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
Marchie
Chaplain
USA
911 Posts |
Posted - 06 Jun 2002 : 13:33:10
there are 2 chips...the IWM (Integrated WOZ module) and SWIM (Super WOZ Inegrated Module)... probably named as such to make an acronym. The Woz modules are the floppy controller chips, and also deal with a couple other thigns, that I can;t remember right now. To use high density floppy drives you need a SWIM in an SE, with ROM chips that will address that much space on a floppy. The scary truth is... If you lurk some of the Linux development boards that deal with ports to 68k Archetecture, you'll find out that no one actually understand the Woz chips, other than Woz himself.... ~Marchie ~Chaplain Marchie Holder of the Compact Mac -
-Stick of Justice, with Explodeing CRT head
-Wand of Power with Shocking Flyback Transformer Tip
~~"We are all Mad here"~~ |
thelip
Full Member
USA
729 Posts |
Posted - 06 Jun 2002 : 15:10:48
yeah, i looked it up later after that. I'll try to find out what it is that i really have in my machine tonight, if i have the time. This is my first time messing with the SEs, but i don't think i've ever had problems dropping in superdrives to later 68k models.Sgt. Thelip
Heavy Weapons Specialist
950 division
Liberated Macs: 12 Creator and Keeper of
THE NEWTON STYLUS ALLIANCE |
Marchie
Chaplain
USA
911 Posts |
Posted - 06 Jun 2002 : 21:34:29
If you are only doing RAM swaps, then there is no need to discharge the CRt... but get into much more and ytou should, for your own safty.Search the Loungue for threads by me, with the word "terrarium" in the subject... there is a tutorial on how to discharge a CRT as safely as possible there, as well as other potential problems involving harm and death. ~Marchie |
thelip
Full Member
USA
729 Posts |
Posted - 06 Jun 2002 : 22:32:30
Discharding crts?!!?! I've heard of such nonsense, but never done it. I know i should. Earlier today, i had the 512k running with the case off trying to identify where the clicking/ticking was coming from. I freaked my friend out when i was talking to him on the phone while listening. Never found the problem and i'm still here to tell the story.
P.s. I know i need to do it, i'm just too lazy. I'm done with my current compact macs, so until i get more, i'm safe... 
Sgt. Thelip
Heavy Weapons Specialist
950 division
Liberated Macs: 12 Creator and Keeper of
THE NEWTON STYLUS ALLIANCE |
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 07 Jun 2002 : 15:37:05
quote:
Discharding crts?!!?! I've heard of such nonsense, but never done it. I know i should.
topic.asp.TOPIC_ID=1363.htmlthere's another good info source in the links project, but 101 in the above linked thread is probably the best way to proceed. jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
~Coxy
Leader, Tactical Ops Unit
Australia
2822 Posts |
Posted - 12 Jun 2002 : 21:45:03
quote:
If you are only doing RAM swaps, then there is no need to discharge the CRt... but get into much more and ytou should, for your own safty.Search the Loungue for threads by me, with the word "terrarium" in the subject... there is a tutorial on how to discharge a CRT as safely as possible there, as well as other potential problems involving harm and death. ~Marchie
Or you could just look on the website, under the How-To section (note that the quide is just a compilation of posts by you and jt!)
~Coxy - Leader, Tactical Operations Unit
Mayor of NuBus City v3.0
|
~Coxy
Leader, Tactical Ops Unit
Australia
2822 Posts |
Posted - 12 Jun 2002 : 21:47:25
quote:
the IWM (Integrated WOZ module) and SWIM (Super WOZ Inegrated Module)... probably named as such to make an acronym.~
AHEM! Integrated Woz Machine! ~Coxy - Leader, Tactical Operations Unit
Mayor of NuBus City v3.0
|
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 12 Jun 2002 : 22:15:03
quote:
AHEM! Integrated Woz Machine!
AHEM! Integrated Wozniak Machine!it's true and it sounds better that way, but j/k!    anyhoo, next time somebody is working on the howto's, adding the Compact Mac Cracking 101link/instructions for getting the translated site with pictures from the links projet might be helpful. ttfn jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
SE and ram troubles
68k of the Week: kastegir's PowerBook 180.