//flex table opened by JP

Click to See Complete Forum and Search --> : Does anyone know the manufacturer's website for MIRA brand memory?


Brian48
10-18-1999, 09:28 AM
Just had a 64mb stick of theirs croak on me and I want to find out if there's any sort of warrantee on this thing. Thanks......

socalgal
10-20-1999, 09:34 PM
Hi Brian48

I couldn't find anything on 'MIRA' as regarding memory. Can you give more info?

Brian48
10-20-1999, 11:23 PM
Sure. Markings on the chips are as follows:

"MIRA P2V64S30BTP"
"84899C0A-7"

Two of the four diagnostic programs I've used seem to indicate that MIRA is Motorola, but I've already checked for that and these chips don't follow the normal labeling standards nor trademarks associated with real Motorola chips. The other two times, the DIMM came up as unidentified. The dealer I got them from last year said that they were Mitsubishi, but the marking are not standard for Mitsubishi either.

Here's the SPD dump from the DIMM when it was actually working. This particular one identified it as Motorola.

SPD dump of Dimm in socket :2

SPD - Number of bytes available :128
SPD - Total bytes of memory device :256
SPD - Revision :18
SPD - Checksum :Faulty

Manufacturer - Name :Motorola
Manufacturer - Location :1 ($01)
Manufacturer - Part Number :HMM3 66S 424BT -GH
Manufacturer - Revision code :3266 ($2042)
Manufacturer - Manufacturing date :$1062
Manufacturer - Assembly Serial Number :0000
Manufacturer - Manufacturer Specific Data :

Memory - Type :Sync Dram
Memory - Row Addresses :12
Memory - Column Addresses :9
Memory - Module Banks :1
Memory - Data Width :64
Memory - Data Width continuation :0
Memory - Voltage interface standard :1
Memory - Cycle time at Max. Supported CAS :10 ns.
Memory - SDRAM Access from Clock at :6 ns.
Memory - DIMM Configuration type :None
Memory - Refresh Rate/Type :Self Refresh, Normal (15.625 us)
Memory - Minimum Clock Delay :1
Memory - Burst Lengths Supported :Page 1 2 4 8
Memory - Banks on Each SDRAM device :4
Memory - CAS Latencies Supported :2 3
Memory - CS Latencies Supported :0
Memory - WE Latencies Supported :0
Memory - Min. Clock Cycle Time @ CL X-1 :10 ns.
Memory - Max. Data Access Time from Clock @ CL X-1 :6 ns.
Memory - Min. Clock Cycle Time @ CL X-2 :0 ns.
Memory - Max. Data Access Time from Clock @ CL X-2 :0 ns.
Memory - Minimum Row Precharge Time :20 ns.
Memory - Minimum Row Active to Row Active delay :20 ns.
Memory - Minimum RAS to CAS delay :20 ns.
Memory - Minimum RAS Pulse Width :50 ns.
Memory - Module Bank Density :64 MB.
Memory - Module Total Density :64 MB.
Memory - Speed :100 Mhz