Re: Slow, dysfunctional TransWarp

[fmlin@netcom.com (Frank M. Lin)]

>	I also few years ago buy a TWGS 6.25 Mhz. The card was not
>	Working properly. I send it back and they send me an other
>	one. The most frtequently problems was due to bad 
>	connection with the mother board.
>
>	I still have the TWGS 6.25 Mhz and all is working ok at
>	this speed. 
>
>	I updated the card with the 32 cache memory without problems.
>	I also order the new 65C816 from WDC, the famous TWGS2B Gal
>	and a 40Mhz Osc. now my IIgs is working at 10Mhz without any
>	problems. The next step is to have it at 12.5 Mhz, but
>	as Gals are no more available how can I do ??!?

Mini-FAQ ( frequently asked questions ) for upgrading TransWarp GS or Zip GS.

Last updated: 8-2-93


:::::::::: disclaimer

Feel free to distribute this anywhere you think it might be of help.

I make no gurantee about any of the information provided below.  If you
choose to do any part of the upgrade, you are taking the rist.  I will
not responsible for anything.

Le me know if any information is incorrect and/or misleading.

you can reach me at:

Compuserve,
GEnie,
America Online,
ProLine  with Internet feed,
METAL/FV with Internet feed,
Internet: fmlin@netcom.com
OggNet:	  capsule, user #6 @ House of Games


:::::::::: table of contents

Search for next topic by scanning for ~~, or ~~<topic number>.

 1. Where can I buy the 32k cache for Transwarp GS?
 2. Should I buy the Sanyo chips?  Or WDC ones?
 3. Where can I buy the high-speed 65816?
 4. What GALs version do I need for my TWGS?
 5. Where can I buy the GALs?
 6. Where can I buy crystal oscillators?
 7. What speed of static cache RAMs do I need?
 8. Where can I buy the SRAMs?
 9. Do I really need to increase the voltage?
10. How do I increase the voltage?
11. Where can I buy the heavy duty power supply?
12. Is it true that Zip can only go about 12.5 mHz?
13. Where can I get replacement 7400 for my Zip?
14. What kind of performance increase can one expect?


:::::::::: common questions & answers

~~4. What GALs version do I need for my TWGS?

	Basically, you have to have the following GALs to go over
	10 mHz:

	1A, 2B, 3E, 4B, 5A, 6A, 7A, 8B

	All TWGS should have the A GALs.  So you need:
	
	2B - DMA fix
	3E - for above 10 mHz operation
	4B - dunno
	8B - dunno

	2B DMA fix was available for free.  You need to call AE's
	900 number and ask for it.  You might need to pay shipping.
	Couple of people say it's no longer free.  But it's worth
	asking though.  Hint: be persistent!
	

~~5. Where can I buy the GALs?

	You can order the GALs only though AE's technical support line.
	
	AE Technical Support
	(900) 884-0123
	$1.50 per minute
	9 AM to 5 PM (CST) Monday through Friday

	It's $20 for _each_ GAL you order.

	AE Technical Support BBS (214) 241-6677
	24 hours, 7 days a week

	I would guess the BBS functions the same.  But I never called
	it before.

	Note: as recent as July of '93, somebody was able to order one
	or more of the GALs from the technical support.  However, some
	one else also reported they don't have it.  I guess you should
	ask for someone who's familiar with the TWGS.

[..] rest delete to save bandwidth.  :)

ps, how often should I post this Mini-FAQ?

-- 
frank m. lin
fmlin@netcom.com