Intel 2107 dram sub....anything?
I'm working on a pc of equipment that uses these 2107 rams and having
nothing but problems with them. They're odd that they don't use a RAS or CAS. I'm thinking they are their own animal and there's nothing that can be hacked in as a replacement. The story goes that they were manufactured on a site that was slightly radioactive leading to the gradual degradation over time, so I'm a bit hesitant to track down NOS parts. Any hope or am I dead in the water? http://www.jrok.com/datasheet/mm5280...07_tms4060.pdf |
Intel 2107 dram sub....anything?
On Tue, 21 Aug 2012 15:28:20 -0700 (PDT), boardjunkie1
put finger to keyboard and composed: I'm working on a pc of equipment that uses these 2107 rams and having nothing but problems with them. They're odd that they don't use a RAS or CAS. I'm thinking they are their own animal and there's nothing that can be hacked in as a replacement. The story goes that they were manufactured on a site that was slightly radioactive leading to the gradual degradation over time, so I'm a bit hesitant to track down NOS parts. Any hope or am I dead in the water? http://www.jrok.com/datasheet/mm5280...07_tms4060.pdf If all 12 address lines are strobed at the same time, then ISTM that you may be able to replace the DRAM with a static RAM. In fact, if you have a bank of these DRAMs, say 4Kx16 or 4Kx8, then you may be able to replace the entire array with one or two SRAMs. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
Intel 2107 dram sub....anything?
On Aug 21, 7:14*pm, Franc Zabkar wrote:
On Tue, 21 Aug 2012 15:28:20 -0700 (PDT), boardjunkie1 put finger to keyboard and composed: I'm working on a pc of equipment that uses these 2107 rams and having nothing but problems with them. They're odd that they don't use a RAS or CAS. I'm thinking they are their own animal and there's nothing that can be hacked in as a replacement. The story goes that they were manufactured on a site that was slightly radioactive leading to the gradual degradation over time, so I'm a bit hesitant to track down NOS parts. Any hope or am I dead in the water? http://www.jrok.com/datasheet/mm5280...07_tms4060.pdf If all 12 address lines are strobed at the same time, then ISTM that you may be able to replace the DRAM with a static RAM. In fact, if you have a bank of these DRAMs, say 4Kx16 or 4Kx8, then you may be able to replace the entire array with one or two SRAMs. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. They are used in banks in this application. 2 banks of 8 with the data out at pin 7 shared in pairs. The static ram idea is a thought. I'll have to see what I have on hand that may work. http://www.flickr.com/photos/6293708...n/photostream/ That is the configuration. |
Intel 2107 dram sub....anything?
On Tue, 21 Aug 2012 15:28:20 -0700 (PDT) boardjunkie1
wrote in Message id: : I'm working on a pc of equipment that uses these 2107 rams and having nothing but problems with them. They're odd that they don't use a RAS or CAS. I'm thinking they are their own animal and there's nothing that can be hacked in as a replacement. The story goes that they were manufactured on a site that was slightly radioactive leading to the gradual degradation over time, so I'm a bit hesitant to track down NOS parts. Any hope or am I dead in the water? http://www.jrok.com/datasheet/mm5280...07_tms4060.pdf If those were the DRAM chips that had the bit-flipping problem with the ceramic packages made from clay that were slightly radioactive, look for replacements that are in a plastic case. See http://en.wikipedia.org/wiki/Timothy_C._May There's 6 of them he http://www.ebay.com/itm/INTEL-P2107C...em2a1c73 cab6 |
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