[comp.sys.tandy] Memory upgrade ..........

demoydk@iitmax.iit.edu (Yung D. Kim) (05/07/91)

Well, after all kinds of warnings, advise, and etc., I DID try the upgrading
of the Tandy 1000 TL's memory.

I got a friend's batch of DRAM chips, and they are 256K chips running at (or
rating at) 100ns.  I opened my machine, took out my hard disk, .........
..... (technical BS and stuff), then out came the original 150ns chips.

I kinda figured that this memory setup is weird; but then it is of a non-
parity memory, so I needed only 16 256K chips as opposed to 18 (16 = 2 banks
of DRAM, 2 = 1 chip for parity ==> 18 chips).  (just here for the hell of it)

Then I placed the 256K 100ns chips.  And then...everything was running okay;
HD was okay, bootup was okay.

Then I tried various testing programs and procedures.  I used Norton SI,
PC Tools PCSHELL, CPUSPEED, CPUTEST, and SYSTYPE.  No real changes, if any.

Then I used a few programs, namely Windows 3.0, and a few games.  No real
changes, again.

Then when I was going to switch back, I decided to test the 100ns chips using
RAMTEST.  For some odd reason, it registered a 7.7 when with the 150ns chips
it registered a 7.2.  Kinda odd.  

So that's it.  Oh, I tried to see if HD performance has increased, and nothing.

Yeah, that IS it.  The memory on the Tandy 1000 TL is definitely fixed at
150ns.  What a waste, but then again its a good thing I didn't buy chips -- 
utter disappointment!

Well, the only thing I have in mind now is trying that SOTA 386/Express
card, since its supposed to plug directly into the 80286 slot.  Oh well.

Yung


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Yung D. Kim                                         "I like traffic lights"
Illinois Institue of Technology               "13:2.5 male to female ratio"
Computer Science and Technologies         "Where's my disk for my project?"

WhateverNET (I forgot): demoydk@iitmax.iit.edu   "The Encore/MADMAX/IITMAX"
"All we are...is dust in the wind, dude"               "Ted" Theodore Logan 
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P.S. I tried the refresh rate thingy, and THAT didn't make a big difference,
     besides the original 8-10% increase in speed.