9-2
Upgrading Sample Memory
Choosing and Installing a SIMM for K2661 Sample Memory
Viewing RAM Objects
If you’re a heavy Disk-mode user, you’ll often be faced with the decision to overwrite, merge, or
append objects when you load files from disk. If you’re loading into a memory bank that’s
nearly full, this can be a tricky call, because if you decide to merge or append, there may not be
enough open slots in the memory bank to accommodate the objects you load. In this case, the
extra objects will be loaded into the next-higher memory bank.
Things get even trickier if you save dependent objects when you save to disk. (A dependent
object is any object that’s associated with another object stored in a different memory bank—for
example, a RAM sample with ID 301 that’s used in a program with ID 200. See the discussions of
dependent objects in Chapter 13 of the Musician’s Guide. If you load a file that contains a number
of dependent objects, some of them may be loaded into a higher memory bank than the one you
specified in the Bank dialog before you loaded the file. A quick way to see where the objects you
loaded ended up is to use the Objects utility function in Master mode.
Select Master mode and press the Utility soft button. Press the Objects soft button, and a list of
RAM objects will appear. Use the Alpha Wheel to scroll through the list of objects. You’ll see the
type, ID, name, and size (in bytes) of each object.
Choosing and Installing a SIMM for K2661 Sample Memory
If your K2661 has a 64 M SIMM installed, you can replace it with a 128 M SIMM to increase your
sample memory.
SIMM Specifications
SIMMs for sample RAM must have the following characteristics:
• 72-pin noncomposite single, in-line memory modules (SIMMs), in sizes of 64 M, or 128 M
• 8- or 9-bit
• 3-volt or 5-volt (most SIMMS currently on the market are 5-volt)
• Fast-page (FPM) or extra data output (EDO) (80-nanosecond or faster)
There is space for a single SIMM, up to a total of 128 M.
These companies make SIMMs that work with the K2661 (many other sources are also likely to
have the proper configurations):
Newer RAM (800) 678-3726 or (316) 943-0222
Chip Merchant (800) 808-2447 or (619) 268-4774
Kamel Peripherals (508) 435-7771 or (888) 295-2635
Lifetime Memory (800) 233 6233 or (714) 794-9000
Caution: Do not use composite SIMMs. A composite SIMM is one that uses a PAL or other additional
circuitry to make multiple DRAM chips act like bigger chips. Non-composite SIMMs (acceptable) have no
chips other than DRAM memory chips soldered to the board. SIMMs with PALs, buffers, or other logic
components will not work in a K2661; do not use them. Composite SIMMs may appear to work in some
cases, but they will be unreliable.
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