EDO RAM Voltages

DDNI · 07 May 2007, 21:23

Guys will the 5V edo ram I use on my BPPC 040 still work after the 040 is changed to an 060?

ta.

twizzle · 07 May 2007, 21:42

i have used my EDO mem in all my blizzards 030/040/060/ bppc 060
no problem :-)

DDNI · 07 May 2007, 22:26

Ta twizzle, its not the EDO part that concerns me. I have a nagging feeling that for the 060 to be fitted the board voltage must be 3.3v...

This may mean my 5v RAM wont work...

Someone tell me that I am wrong......

Zetr0 · 08 May 2007, 01:40

@DDNI
the voltage shift from 5v to 3.3v (by the regulator) only referes to the core of voltage of the processor not the memory..

baring very rare timming issues (wich is about as likely as ACT deliveing an amiga) your 5v edo will work perfectly fine like mine does

Calgor · 16 May 2007, 16:26

Do 3.3V EDOs also work in amiga accelerators?

Jope · 16 May 2007, 18:31

You probably can't find a 3.3V EDO SIMM, only DIMMs.

So no, a 3.3V DIMM will not fit any Amiga accelerator, as they don't take DIMMs.

Calgor · 16 May 2007, 18:39

@ Jope

Actually, it is advertised on many places on the net. For example on page 3 of this document everything (SIMM/SO DIMM DRAM etc) seems to be available in both 3.3V and 5V:

http://www.smartmodulartech.com/bina...elOverview.pdf

Calgor · 16 May 2007, 18:43

I read somewhere that the 3.3V and 5V SIMMs have different position of the notches in their slot, but can't find the reference anywhere - so I could check what my accelerators might support (possibly both!). It had a picture showing the notch positions.

EDIT: I may have been wrong about the different notch position, as there seems to be many anecdotes on the net on ppl inserting 3.3V in 5V slots, and also many IBMPC motherboards specifically documenting that they support both 3.3V and 5V simms. It could be that a 3.3V SIMM will work in a 5V slot but could get damaged by too much voltage being applied if the slot is only designed for 5V.

Jope · 16 May 2007, 19:12

Hmm, interesting. Hope you find the reference.. I've got a lot of SIMMs (I mean a cardboard box full) but no 3.3V ones. :-)

07 May 2007, 21:23	#1
DDNI Targ Explorer Join Date: Mar 2006 Location: Northern Ireland Posts: 5,431	EDO RAM Voltages Guys will the 5V edo ram I use on my BPPC 040 still work after the 040 is changed to an 060? ta.

16 May 2007, 18:43	#8
Calgor (Amigas && Amigos)++ Join Date: Sep 2005 Location: Anrea Posts: 999	I read somewhere that the 3.3V and 5V SIMMs have different position of the notches in their slot, but can't find the reference anywhere - so I could check what my accelerators might support (possibly both!). It had a picture showing the notch positions. EDIT: I may have been wrong about the different notch position, as there seems to be many anecdotes on the net on ppl inserting 3.3V in 5V slots, and also many IBMPC motherboards specifically documenting that they support both 3.3V and 5V simms. It could be that a 3.3V SIMM will work in a 5V slot but could get damaged by too much voltage being applied if the slot is only designed for 5V. Last edited by Calgor; 18 May 2007 at 20:15.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
double sided edo ram & blizzard 1230	hardwir3d	Hardware mods	3	28 December 2012 13:00
A1200 crashes using EDO RAM	hardwir3d	support.Hardware	9	17 April 2010 14:09
Blizzard 1230 and EDO RAM?	gizmomelb	support.Hardware	4	21 February 2006 22:13
EDO RAM on a MicroRobotics MBX 1230XA	BooTMaker	support.Hardware	2	14 February 2003 15:14
EDO RAM question	oldpx	support.Hardware	16	12 March 2002 22:31

07 May 2007, 21:42	#2
twizzle Registered User Join Date: Sep 2005 Location: taunton.som.uk Age: 73 Posts: 681	i have used my EDO mem in all my blizzards 030/040/060/ bppc 060 no problem :-)

07 May 2007, 22:26	#3
DDNI Targ Explorer Join Date: Mar 2006 Location: Northern Ireland Posts: 5,431	Ta twizzle, its not the EDO part that concerns me. I have a nagging feeling that for the 060 to be fitted the board voltage must be 3.3v... This may mean my 5v RAM wont work... Someone tell me that I am wrong......

08 May 2007, 01:40	#4
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@DDNI the voltage shift from 5v to 3.3v (by the regulator) only referes to the core of voltage of the processor not the memory.. baring very rare timming issues (wich is about as likely as ACT deliveing an amiga) your 5v edo will work perfectly fine like mine does

16 May 2007, 16:26	#5
Calgor (Amigas && Amigos)++ Join Date: Sep 2005 Location: Anrea Posts: 999	Do 3.3V EDOs also work in amiga accelerators?

16 May 2007, 18:31	#6
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	You probably can't find a 3.3V EDO SIMM, only DIMMs. So no, a 3.3V DIMM will not fit any Amiga accelerator, as they don't take DIMMs.

16 May 2007, 18:39	#7
Calgor (Amigas && Amigos)++ Join Date: Sep 2005 Location: Anrea Posts: 999	@ Jope Actually, it is advertised on many places on the net. For example on page 3 of this document everything (SIMM/SO DIMM DRAM etc) seems to be available in both 3.3V and 5V: http://www.smartmodulartech.com/bina...elOverview.pdf

16 May 2007, 19:12	#9
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Hmm, interesting. Hope you find the reference.. I've got a lot of SIMMs (I mean a cardboard box full) but no 3.3V ones. :-)

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)