NVRAM - Revision history

AtariWikiSysop: 7 revisions imported

2018-06-03T23:00:40Z

7 revisions imported

Catmando at 21:41, 11 March 2016

2016-03-11T21:41:52Z

Catmando at 21:40, 11 March 2016

2016-03-11T21:40:49Z

Catmando: /* Tutorial */

2016-03-11T21:40:36Z

‎Tutorial

Catmando: /* Tutorial */

2016-03-11T21:37:42Z

‎Tutorial

Catmando: /* Tutorial */

2016-03-11T21:35:45Z

‎Tutorial

Catmando: /* Tutorial */

2016-03-11T21:34:07Z

‎Tutorial

Catmando: Created page with "The NVRAM chip contains a battery cell that after time ceases to function. In most cases this will mean that your Falcon will no longer keep the correct time in day-to-day use. S..."

2016-03-11T21:32:15Z

Created page with "The NVRAM chip contains a battery cell that after time ceases to function. In most cases this will mean that your Falcon will no longer keep the correct time in day-to-day use. S..."

New page

The NVRAM chip contains a battery cell that after time ceases to function. In most cases this will mean that your Falcon will no longer keep the correct time in day-to-day use. Since the NVRAM chip also stores other settings as well this can also cause problems with the Falcon failing to boot in some instances.

Unfortunately the NVRAM chip is not socketed and is soldered directly to the board. This leaves two options, either desolder the chip (which can often prove problematic on several of the pins) to replace it with a socket and compatible Dallas chip or mod the existing NVRAM chip with a Dremel and attach a small 5v external replaceable cell.

==Tutorial==

1. Locate the NVRAM chip

2. Align a ruler along the chip and gently Dremel two small channels at approx 10mm and 21mm until you reach the metal contacts inside

3. Obtain a 5v cell (CR2032 or CR ) and solder to contacts

@@ Line 1: / Line 1: @@
 The NVRAM chip contains a battery cell that after time ceases to function. In most cases this will mean that your Falcon will no longer keep the correct time in day-to-day use. Since the NVRAM chip also stores other settings as well this can also cause problems with the Falcon failing to boot in some instances.
-Unfortunately the NVRAM chip is not socketed and is soldered directly to the board. This leaves two options, either desolder the chip (which can often prove problematic on several of the pins) to replace it with a socket and compatible Dallas chip or mod the existing NVRAM chip with a Dremel and attach a small 3v external replaceable cell.
+Unfortunately the NVRAM chip is not socketed and is soldered directly to the board. This leaves two options, either desolder the chip (which can often prove problematic on several of the pins) to replace it with a socket and compatible Dallas chip or mod the existing NVRAM chip with a Dremel and attach a small 3v external replaceable cell (as shown below)
 ==Tutorial==

← Older revision		Revision as of 21:40, 11 March 2016
Line 14:		Line 14:
	</gallery>		</gallery>

−	3. Obtain a 5v cell (CR2032 or CR ) and solder to contacts	+	3. Obtain a 3v cell (CR2032 or CR2025) and solder to contacts (Red wire is negative, Brown wire is positive)
		+
		+	<gallery>
		+	Image:NVRAM_Mod_03.jpg
		+	</gallery>

@@ Line 9: / Line 9: @@
 . Align a ruler along the chip and gently Dremel two small channels at approx 10mm and 21mm until you reach the metal contacts inside
-[[File:NVRAM_Mod_01.jpg|600px]]
+<gallery>
 . Obtain a 5v cell (CR2032 or CR ) and solder to contacts

@@ Line 9: / Line 9: @@
 . Align a ruler along the chip and gently Dremel two small channels at approx 10mm and 21mm until you reach the metal contacts inside
-Image:NVRAM_Mod_01.jpg
+[[File:NVRAM_Mod_01.jpg|600px]]
 . Obtain a 5v cell (CR2032 or CR ) and solder to contacts

← Older revision		Revision as of 21:34, 11 March 2016
Line 8:		Line 8:

	2. Align a ruler along the chip and gently Dremel two small channels at approx 10mm and 21mm until you reach the metal contacts inside		2. Align a ruler along the chip and gently Dremel two small channels at approx 10mm and 21mm until you reach the metal contacts inside
		+
		+	Image:NVRAM_Mod_01.jpg

	3. Obtain a 5v cell (CR2032 or CR ) and solder to contacts		3. Obtain a 5v cell (CR2032 or CR ) and solder to contacts

← Older revision	Revision as of 23:00, 3 June 2018
(No difference)