Need a memory expert

[chess9]

My son has a Matsonic 5025S. I bought him a pair of 64 meg sdrams but they don't fit in the slot. He has simm slots and dimm slots. He had 64 megs of simms in there, but wanted more memory. I suggested getting two 64 sticks of sdram, which we now have. The white clips won't shut and he is inserting it properly. Here are the specs on the ram from the manual:

Memory Installation
The mainboard lets you add up to 256MB of system
memory through SIMM and DIMM sockets on the
board. Four SIMM sockets on the mainboard are
divided into two banks: Bank 0 and Bank 1. Each bank
consists of two 72-pin SIMM modules, and three 168-
pin DIMM sockets are divided into three banks: Bank 0,
Bank 1, and Bank 2. The mainboard supports the
following memory configurations.
Bank Memory Module
Bank 0
SIMM1 & SIMM2
(72-pin SIMM)
DIMM1
(168-pin DIMM)
2 x 4MB/8MB/16MB/32MB/64MB
or
4MB, 8MB, 16MB, 32MB, 64MB, 128MB
Bank 1
SIMM3 & SIMM4
(72-pin SIMM)
DIMM2
(168-pin DIMM)
2 x 4MB/8MB/16MB/32MB/64MB
or
4MB, 8MB, 16MB, 32MB, 64MB, 128MB
Bank 2
DIMM3
(168-pin DIMM)
4MB, 8MB, 16MB, 32MB
Total System Memory = Bank 0 + Bank 1 + Bank 2
Notes: 1. SIMM3 & 4 and DIMM2, or, SIMM1 & 2 and DIMM1,
these two types of DRAM module can not be used at the
same time.
2. The speed of all SIMMs and DIMM modules have to be
faster than 70ns.
3. Use 2 DRAM types: Fast Page Mode or Extend DATA Out
(EDO) for SIMM socket.
4. Use 3 DRAM types: Fast Page Mode, Extend Data Out
(EDO), or synchronous DRAM (SDRAM) for DIMM
socket.
5. The function of Bank 2 will not be available while using the
64 Mbit type of SDRAM in any DIMM slots.

What's wrong? Anyone know?

Thanks.

 

[DAM]

ok this sounds like a physical problem, make sure the sticks are facing the right side, and also that you introduce them to the slot at an angle, it takes practice, ohh and dont break anything.


have someone else try, that usually works, i could not take out a mobo once, i was at it for like 20 mins, and a friend took it out in 2 minutes






dam(like you cared)

 

[chess9]

Dam: The SDRAMS fit in vertically, unlike the SIMMS which must be tilted. The notching is different on the mobo memory slot than standard SDRAM. I'm thinking these may be old Fast Page Mode SDRAM slots. Anyway, I'm just going to buy two 64 EDOs. Should work fine.