O oggie Member Rating - 100% 3 0 0 Joined May 31, 2016 Posts 114 Country Canada Region New Brunswick Feb 2, 2018 #1 I want to upgrade my rev 6a a500 to 1mb chip and need 4 of the 256kx4 dram chips. Let me know what you have.
I want to upgrade my rev 6a a500 to 1mb chip and need 4 of the 256kx4 dram chips. Let me know what you have.
Half-Saint Well-known member AmiBayer Rating - 100% 210 0 0 Joined Sep 2, 2013 Posts 3,047 Country Slovenia Region Ljubljana Feb 2, 2018 #2 Would the chips used in old VGA cards work?
BlindGerMan Dancing with bridgeboards AmiBayer Rating - 100% 320 0 0 Joined Nov 24, 2011 Posts 3,202 Country Germany Region Bavaria Feb 2, 2018 #3 What the hell do you want with 60 ns chips for ChipMEM in an A500??? 100 ns should be more than fast enough... Last edited: Feb 2, 2018
What the hell do you want with 60 ns chips for ChipMEM in an A500??? 100 ns should be more than fast enough...
O oggie Member Rating - 100% 3 0 0 Joined May 31, 2016 Posts 114 Country Canada Region New Brunswick Feb 2, 2018 #4 The ones that are there now are 60ns. It makes sense to match them. - - - Updated - - - If they're the same specs, I don't see why not. Do you know of ones that have the chips in them? Half-Saint said: Would the chips used in old VGA cards work? Click to expand...
The ones that are there now are 60ns. It makes sense to match them. - - - Updated - - - If they're the same specs, I don't see why not. Do you know of ones that have the chips in them? Half-Saint said: Would the chips used in old VGA cards work? Click to expand...
slaz New member Rating - 100% 31 0 0 Joined May 19, 2010 Posts 382 Country UK Region London Feb 2, 2018 #5 If there are 4 empty posiitons for memory on the motherboard, I think you'll find you need 4 of 1Mbit x 4. 4 x 1Mbit = 4Mbit = 512Kbyte, 16-bit wide.
If there are 4 empty posiitons for memory on the motherboard, I think you'll find you need 4 of 1Mbit x 4. 4 x 1Mbit = 4Mbit = 512Kbyte, 16-bit wide.
O oggie Member Rating - 100% 3 0 0 Joined May 31, 2016 Posts 114 Country Canada Region New Brunswick Feb 2, 2018 #6 The ones that are there now are siemens hyb514256b-60, which are 256kx4. so you need 2 to make 256, 4 to make 512. 4 more of the same make 1mb. There are 8 slots in total, with 4 in use. slaz said: If there are 4 empty posiitons for memory on the motherboard, I think you'll find you need 4 of 1Mbit x 4. 4 x 1Mbit = 4Mbit = 512Kbyte, 16-bit wide. Click to expand... Last edited: Feb 2, 2018
The ones that are there now are siemens hyb514256b-60, which are 256kx4. so you need 2 to make 256, 4 to make 512. 4 more of the same make 1mb. There are 8 slots in total, with 4 in use. slaz said: If there are 4 empty posiitons for memory on the motherboard, I think you'll find you need 4 of 1Mbit x 4. 4 x 1Mbit = 4Mbit = 512Kbyte, 16-bit wide. Click to expand...
slaz New member Rating - 100% 31 0 0 Joined May 19, 2010 Posts 382 Country UK Region London Feb 2, 2018 #7 OK - mebbe I had a brain-fart there. I'll shut up - don't want to mis-inform anyone.