Welcome, Guest. Please login or register.

Author Topic: Strange RAM chips  (Read 2713 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Vlabguy1Topic starter

  • Hero Member
  • *****
  • Join Date: Aug 2006
  • Posts: 1264
    • Show only replies by Vlabguy1
Strange RAM chips
« on: September 01, 2012, 04:59:35 PM »
Just thought I would share this image as I have never seen this type of
RAM chip before.
 

Offline Matt_H

Re: Strange RAM chips
« Reply #1 on: September 01, 2012, 05:39:37 PM »
That is rather weird. Looks kind of like a casing over the actual chips. Some sort of heatsink? Is that a Blizzard 2040 board?
 

Offline commodorejohn

  • Hero Member
  • *****
  • Join Date: Mar 2010
  • Posts: 3165
    • Show only replies by commodorejohn
    • http://www.commodorejohn.com
Re: Strange RAM chips
« Reply #2 on: September 01, 2012, 05:43:12 PM »
I've seen blob packaging for a few different things, but mostly ROM chips that someone didn't want removed and copied (i.e. several of my Atari carts.) Seeing it on a RAM SIMM is a little weird...
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline Darrin

  • Lifetime Member
  • Hero Member
  • *****
  • Join Date: May 2002
  • Posts: 4430
    • Show only replies by Darrin
Re: Strange RAM chips
« Reply #3 on: September 01, 2012, 05:43:41 PM »
Ask Doomy.  I think you'll find those are military spec RAM chips designed to survive an Electro-Magnetic Pulse and are for use in the A2000 only.  :D
A2000, A3000, 2 x A1200T, A1200, A4000Tower & Mediator, CD32, VIC-20, C64, C128, C128D, PET 8032, Minimig & ARM, C-One, FPGA Arcade... and AmigaOne X1000.
 

Offline CritAnime

  • Previous Life Time Member
  • Hero Member
  • *****
  • Join Date: Jun 2011
  • Posts: 1143
    • Show only replies by CritAnime
Re: Strange RAM chips
« Reply #4 on: September 01, 2012, 06:12:49 PM »
I have seen ram like that before. it was in a laptop designed for outdoor use.

Offline Zac67

  • Hero Member
  • *****
  • Join Date: Nov 2004
  • Posts: 2890
    • Show only replies by Zac67
Re: Strange RAM chips
« Reply #5 on: September 01, 2012, 07:12:21 PM »
Not strange, just cheap. The RAM dice are soldered directly to the carrier PCB and then covered with epoxy(?) without intermediate packaging.
 

Offline runequester

  • It\'s Amiga time!
  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 3695
    • Show only replies by runequester
Re: Strange RAM chips
« Reply #6 on: September 01, 2012, 08:17:52 PM »
Quote from: Darrin;706136
Ask Doomy. I think you'll find those are military spec RAM chips designed to survive an Electro-Magnetic Pulse and are for use in the A2000 only. :D

True story. The T34 tanks that the red army drove into Berlin in 1945 were built from Amiga 2000 casings.
 

Offline MiAmigo

  • Arbiter of Succession
  • Sr. Member
  • ****
  • Join Date: Dec 2004
  • Posts: 391
  • Country: us
  • Thanked: 1 times
  • Gender: Male
    • Show only replies by MiAmigo
Re: Strange RAM chips
« Reply #7 on: September 01, 2012, 08:25:44 PM »
No, I have never seen RAMs like that before. I'm almost too terrified to speak! I think I better go play some Turrican and then lay down!
:rofl:
 

Offline TjLaZer

Re: Strange RAM chips
« Reply #8 on: September 07, 2012, 12:12:20 AM »
Quote from: runequester;706151
True story. The T34 tanks that the red army drove into Berlin in 1945 were built from Amiga 2000 casings.


Wow I didn't know my A2000's are that old!  I thought they came out in 1987.  This should drive up the price on these Ultra Rare Amigas!  ;)
Going Bananas over AMIGAs since 1987...

Looking for Fusion Fourty PNG ROMs V3.4?

:flame: :banana: :banana: :banana:
 

Offline A1260

  • Hero Member
  • *****
  • Join Date: Jul 2007
  • Posts: 693
    • Show only replies by A1260
Re: Strange RAM chips
« Reply #9 on: September 07, 2012, 12:59:15 AM »
where is doomy when you need the him...
 

Offline danbeaver

Re: Strange RAM chips
« Reply #10 on: September 07, 2012, 01:34:37 AM »
Quote from: A1260;706904
where is doomy when you need the him...


Dude, I think I read he was banned
 

Offline kd7ota

  • Hero Member
  • *****
  • Join Date: Jun 2002
  • Posts: 1433
    • Show only replies by kd7ota
    • http://www.qrz.com
Re: Strange RAM chips
« Reply #11 on: September 07, 2012, 02:01:37 AM »
Might be of entertainment seeing both Franko and Doomy bickering and flapping their gums about useless things. :)
-=-=-=-=-=-
Mine!  :-D
 

Offline Pentad

Re: Strange RAM chips
« Reply #12 on: September 07, 2012, 02:26:19 AM »
Quote from: Darrin;706136
Ask Doomy.  I think you'll find those are military spec RAM chips designed to survive an Electro-Magnetic Pulse and are for use in the A2000 only.  :D


Absolutely!  That covering helps protect the chips like a Faraday Cage but in a smaller -portable- configuration.  I believe Doomy would tell you that the technology is from Area 51 with some refinements done at Wright-Patterson AFB.

I believe you have to have MJ12 clearance to look underneath the shielding...

:-)
-P
Linux User (Arch & OpenSUSE TW) - WinUAE via WINE
 

Offline Pentad

Re: Strange RAM chips
« Reply #13 on: September 07, 2012, 02:27:37 AM »
Quote from: A1260;706904
where is doomy when you need the him...


He is making videos:  http://www.youtube.com/watch?v=epBgHEFbrlg
Linux User (Arch & OpenSUSE TW) - WinUAE via WINE
 

Offline kd7ota

  • Hero Member
  • *****
  • Join Date: Jun 2002
  • Posts: 1433
    • Show only replies by kd7ota
    • http://www.qrz.com
Re: Strange RAM chips
« Reply #14 on: September 07, 2012, 03:16:38 AM »
Quote from: Pentad;706912
He is making videos:  http://www.youtube.com/watch?v=epBgHEFbrlg


Least it wasn't the infamous.........ONLY AmiiiiiiiiiiiiiiiiigAAAAAAAaaaaaaaaaa!!! lol.
-=-=-=-=-=-
Mine!  :-D