I picked up a TransWarp GS recently. How can I find out what speed
the processor is running at and how much cache it has? I know what
the standard speed is, but I don't know if this one has ever been
modified.
Cheers
-Scott
I picked up a TransWarp GS recently. How can I find out what speed
the processor is running at and how much cache it has? I know what
the standard speed is, but I don't know if this one has ever been
modified.
Check the number on the crystal (retangular metal can at end of card) and divide that by 4. A 28mhz crystal would give you a 7mhz TWGS. I believethe
TWGS CDA will tell you how much cache you have along with your firmware revision.
Check the number on the crystal (retangular metal can at end of card) andthe
divide that by 4. A 28mhz crystal would give you a 7mhz TWGS. I believe
TWGS CDA will tell you how much cache you have along with your firmware
revision.
the original ones had wider cache chips 600mil pin spacing which gave the TWGS 8K of cache.
it also would normally have ROM ver 1.5 or earlier. (if there was one earlier). although there are 600mil wide 32K cache chips they are pretty rare.
a modified one could have 8K or 32K cache, or extremely unlikely you could have a 64K cache prototype (see link below).
they could be either 300mil or 600mil wide chips, but normally 300mil wide chips will indicate it has been modified to 32K cache.
check out http://www.apple2.org and go to the Transwarp IIGS Upgrade for
some more info & pictures. the close up of the GAL chips has an alternative to the normally shiney clock oscillator in the top right corner. I havn't seen these anywhere else.
also I believe you must have the later ROM 18.S upgrade if you want it to work with 32K cache.
another upgrade was to add the 32K Cache board that is made by ---SHH System at http://www.wbwip.com/shh/ then go to the Transwarp GS 32K cache ("second source") link for more info. These are mounted onto the Transwarp IIGS the opposite way to the original TWGS, so all you will see is the back of the daughterboard. these boards also require that the ver 1.8S ROM be fitted IIRC.
and as someone else has pointed out the Control Panel will tell you more. I know the ROM 1.8 tells you the ROM version and the amount of cache fitted, but I can't recall if the original does as I don't have one anymore.
lastly check out the CPU. they are either marked -6 -7 -8 or -14 or no '-'. this indicates the maximum speed of the CPU. no '-' is 6MHz I believe. the others -6, -7, and -8 are also original CPUs, and if it has a -14 it has the fastest available CPU fitted ie 14MHz, although the Clock Oscillator (XTAL thing) will determine the actual speed it runs at.
hope that helps.
Mark
Thanks everyone. The cpu is unmarked for speed, the oscillator says
35 MHz and Control Panel reports ROM 1.5, so it looks like I have a 6
or 6.25 MHz cpu with 8k cache.
I think I want to try the upgrades. I've seen the SHH page before butorder
have not been sure whether the cache card is still for sale or if the
page was just for nostalgia. Are they? Also, does anyone know how many 65c816s you get for the $100 minimum order from WDC? I'm thinking to
them and sell off the extras on ebay.
Oh, and any good source for oscillators?
"Scott V. McGuire" <fake@f.a.k.e.net> wrote in message news:QKeTa.16272$852.12350@twister.nyc.rr.com...guarantee
BTW just becuase you want to up the speed of the card, there is no
that it will work, as the max speed of any TWGS seems to be different for each card. the good news is that it's it's cheap to try different speeds,for
but the bad news is it's expensive (or can be) to do all the other mods
max performance.that
Some people just upgrade the cache chips first (can often be found on old 386/486s as cache chips) and add the faster CPU and XTAL. you could try
firsts as a first step.
Some people just upgrade the cache chips first (can often be found on old 386/486s as cache chips) and add the faster CPU and XTAL. you could try that firsts as a first step.
Mark
Scott V. McGuire wrote:card.
I was thinking of the cache upgrade as the last thing to try because I thought the cutting and soldering were the most likely to destroy the
wrong?Also I read somewhere that 35ns was good enough for up to 12.5 MHz so I thought I'd just try the cpu/oscillator upgrade. Any of that sound
Cheers,
-Scott
I was able to go to 14mhz by just changing the oscillator but cards may
vary.
According to the ///SHH Systeme website they're still selling a 32k
cache daughter card.
Thanks everyone. The cpu is unmarked for speed, the oscillator says
35 MHz and Control Panel reports ROM 1.5, so it looks like I have a 6
or 6.25 MHz cpu with 8k cache.
Thanks everyone. The cpu is unmarked for speed, the oscillator saysorder
35 MHz and Control Panel reports ROM 1.5, so it looks like I have a 6
or 6.25 MHz cpu with 8k cache.
I think I want to try the upgrades. I've seen the SHH page before but
have not been sure whether the cache card is still for sale or if the
page was just for nostalgia. Are they? Also, does anyone know how many 65c816s you get for the $100 minimum order from WDC? I'm thinking to
them and sell off the extras on ebay.
Oh, and any good source for oscillators?
Cheers,
-Scott
In article <3f1d3ecf$1_1@news.iprimus.com.au>, Mark Cummings wrote:and
Check the number on the crystal (retangular metal can at end of card)
thedivide that by 4. A 28mhz crystal would give you a 7mhz TWGS. I believethe
TWGS CDA will tell you how much cache you have along with your firmware
revision.
the original ones had wider cache chips 600mil pin spacing which gave
couldTWGS 8K of cache.
it also would normally have ROM ver 1.5 or earlier. (if there was one earlier). although there are 600mil wide 32K cache chips they are pretty rare.
a modified one could have 8K or 32K cache, or extremely unlikely you
widehave a 64K cache prototype (see link below).
they could be either 300mil or 600mil wide chips, but normally 300mil
alternativechips will indicate it has been modified to 32K cache.
check out http://www.apple2.org and go to the Transwarp IIGS Upgrade for some more info & pictures. the close up of the GAL chips has an
havn'tto the normally shiney clock oscillator in the top right corner. I
toseen these anywhere else.
also I believe you must have the later ROM 18.S upgrade if you want it
Systemwork with 32K cache.
another upgrade was to add the 32K Cache board that is made by ---SHH
("secondat http://www.wbwip.com/shh/ then go to the Transwarp GS 32K cache
thesource") link for more info. These are mounted onto the Transwarp IIGS
theopposite way to the original TWGS, so all you will see is the back of
more. Idaughterboard. these boards also require that the ver 1.8S ROM be fitted IIRC.
and as someone else has pointed out the Control Panel will tell you
fitted,know the ROM 1.8 tells you the ROM version and the amount of cache
'-'.but I can't recall if the original does as I don't have one anymore.
lastly check out the CPU. they are either marked -6 -7 -8 or -14 or no
thethis indicates the maximum speed of the CPU. no '-' is 6MHz I believe.
theothers -6, -7, and -8 are also original CPUs, and if it has a -14 it has
(XTALfastest available CPU fitted ie 14MHz, although the Clock Oscillator
thing) will determine the actual speed it runs at.
hope that helps.
Mark
Sysop: | Gate Keeper |
---|---|
Location: | Shelby, NC |
Users: | 705 |
Nodes: | 20 (0 / 20) |
Uptime: | 34:08:54 |
Calls: | 8,820 |
Calls today: | 10 |
Files: | 5,288 |
D/L today: |
73 files (58,436K bytes) |
Messages: | 458,137 |