Supra 500RX ram upgrade

ItsTheSmell · 14 January 2021, 01:23

Ive bought the above ram expansion and it says it can be upgraded to 8mb,

"The SupraRAM 500RX is designed to use 2 different kinds of memory chips for expansion. Using 256K x 4 ZIP DRAMs (1 megabit), you can configure the 500RX with 512k, 1MB or 2MB of RAM. For expansion above 2MB you must use all 1Mbit x 4 ZIP DRAMs (4 megabit)."

Is it possible to get these chips from somewhere?

lesta_smsc · 14 January 2021, 02:01

Lol I believe i was in the same boat with Cortex RAM but also my SupraDrive apparently supports this too... if you succeed please let me know! I heard there was some RAM conversion possible.

Jope · 14 January 2021, 10:35

1Mx4 is only available in ZIP these days. So yeah, you're in luck.

lesta_smsc · 14 January 2021, 14:51

May need this:

https://www.ebay.co.uk/itm/New-4x-Ad....m46890.l49292

ItsTheSmell · 15 January 2021, 02:10

Quote:

Originally Posted by lesta_smsc

May need this:

https://www.ebay.co.uk/itm/New-4x-Ad....m46890.l49292

I cant work out what Im meant to do with these.

Jope · 15 January 2021, 06:44

Quote:

Originally Posted by lesta_smsc

May need this:

https://www.ebay.co.uk/itm/New-4x-Ad....m46890.l49292

Not usable with the SupraRAM 500RX.

ItsTheSmell · 19 January 2021, 01:10

Ive just found these on ebay if anyone is interested. 10 available. Are they the right ones?

https://www.ebay.co.uk/itm/New-4MB-A...AAAOSwqYBWobeD

Jope · 20 January 2021, 07:55

Those should work, but they will be a bit wasted if you don't plug them into a static column capable DRAM controller such as the A3000 motherboard.

You can probably find other 1Mx4 ZIPs from other vendors.

Here is a list:
https://www.amiga-stuff.com/hardware/1mx4-dram.html

The ones ending in 0 are normal, the ones ending in 2 are SC.

ItsTheSmell · 20 January 2021, 08:34

The seller said they'd work

ItsTheSmell · 08 February 2021, 18:08

Hi everyone, the zip ram arrived yesterday and the amiga wont boot with them in. Ive tried the jumper settings but nothing changes. The Amiga power light flashes between bright and dark and it hangs. With the ram fully populated its hard to remove them. Has anyone got any tips on how to remove them safely? Theyre in pretty tight with no room for movement.

Jope · 08 February 2021, 18:20

Grab the module with pair of tweezers and rock back and forth while pulling. They release quite violently, so try to moderate your pulling force.

14 January 2021, 01:23	#1
ItsTheSmell Registered User Join Date: Mar 2018 Location: New Ferry Posts: 516	Supra 500RX ram upgrade Ive bought the above ram expansion and it says it can be upgraded to 8mb, "The SupraRAM 500RX is designed to use 2 different kinds of memory chips for expansion. Using 256K x 4 ZIP DRAMs (1 megabit), you can configure the 500RX with 512k, 1MB or 2MB of RAM. For expansion above 2MB you must use all 1Mbit x 4 ZIP DRAMs (4 megabit)." Is it possible to get these chips from somewhere?

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14 January 2021, 02:01	#2
lesta_smsc Registered User Join Date: Feb 2012 Location: United Kingdom Posts: 3,174	Lol I believe i was in the same boat with Cortex RAM but also my SupraDrive apparently supports this too... if you succeed please let me know! I heard there was some RAM conversion possible.

14 January 2021, 10:35	#3
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	1Mx4 is only available in ZIP these days. So yeah, you're in luck.

14 January 2021, 14:51	#4
lesta_smsc Registered User Join Date: Feb 2012 Location: United Kingdom Posts: 3,174	May need this: https://www.ebay.co.uk/itm/New-4x-Ad....m46890.l49292

19 January 2021, 01:10	#7
ItsTheSmell Registered User Join Date: Mar 2018 Location: New Ferry Posts: 516	Ive just found these on ebay if anyone is interested. 10 available. Are they the right ones? https://www.ebay.co.uk/itm/New-4MB-A...AAAOSwqYBWobeD

20 January 2021, 07:55	#8
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Those should work, but they will be a bit wasted if you don't plug them into a static column capable DRAM controller such as the A3000 motherboard. You can probably find other 1Mx4 ZIPs from other vendors. Here is a list: https://www.amiga-stuff.com/hardware/1mx4-dram.html The ones ending in 0 are normal, the ones ending in 2 are SC.

20 January 2021, 08:34	#9
ItsTheSmell Registered User Join Date: Mar 2018 Location: New Ferry Posts: 516	The seller said they'd work

08 February 2021, 18:08	#10
ItsTheSmell Registered User Join Date: Mar 2018 Location: New Ferry Posts: 516	Hi everyone, the zip ram arrived yesterday and the amiga wont boot with them in. Ive tried the jumper settings but nothing changes. The Amiga power light flashes between bright and dark and it hangs. With the ram fully populated its hard to remove them. Has anyone got any tips on how to remove them safely? Theyre in pretty tight with no room for movement.

08 February 2021, 18:20	#11
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Grab the module with pair of tweezers and rock back and forth while pulling. They release quite violently, so try to moderate your pulling force.

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