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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: DeQuevedo on May 23, 2003, 08:38:41 AM
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Hi Ppl!
I have just get a Mk2 060 @ 50Mhz for my 4k miggy.
Where I can get info for features and issues of this board?
Thank you in advance.
-DeQuevedo
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Hello There. Goto: www.amigau.com : At that sight you
should be able to ge some information, if not then there
should be some links to other web sites.
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The Big Book of Amiga Hardware (http://www.amiga-hardware.com) should tell you everything you need to know.
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If you also have the CyberSCSI module, you cannot overclock it. If you do not have the CybserSCSI module you should be able to OC it to 66Mhz no problem.
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FYI: I overclocked mine to 66mhz by replacing the crystal clock, but had to add a fan to stop overheat problem.
Plaz
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redrumloa wrote:
If you also have the CyberSCSI module, you cannot overclock it. If you do not have the CybserSCSI module you should be able to OC it to 66Mhz no problem.
There are two versions of the cyberscsi module.
The one with a NCR/ysmbios scsi chip, does not tolerate overclocking, whereas the one with a FAS216 scsi chip tolerates overclocking quite well.
-Paul
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Don't know about Cyberstorms as I've never owned one, but I have owned plenty of A1200 DCE / Phase5 hardware.
I have no idea were this, scsi won't work if you overclock it, myth / urban legand came from.
My BlizzardPPC was overclocked to 280Mhz by uping the bus speed to 70Mhz (x4 multiplier) and didn't affect scsi. That was on an unfixed 1D4 mobo as well.
My current DCE1260 is overclocked to 66Mhz and has a phase5 SCSI card on it. It works just fine.
My previous Phase5-1260 which I overclocked in 1997 to 64Mhz is still going to this day with SCSI at my friends house.
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I have no idea were this, scsi won't work if you overclock it, myth / urban legand came from.
It deals specifically with the Cyberstorm MK-II and it's CyberSCSI module. Pretty well known fact.
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It deals specifically with the Cyberstorm MK-II and it's CyberSCSI module. Pretty well known fact.
Obviously not that well known ;-) but someone else now knows ... Cheers :-)
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Así que ya has cambiado el 040 por el 060 eh! :-D
Es un poquillo más lenta que la MK1 con el acceso a memoria pero es bastante más flexible con los tipos de simms, admite EDO, de doble cara y lo típico (de 64 no he probado, es posible que no funcionen :-)
Creo que tengo el manual, si quieres alguna cosa dimelo...
Saludicos
Jaime
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Hi Crumbito!
Me he pillao la Mk2 de Puppy, aver si le hago el ingreso hoy mismo y mela envia (arf arf)
Tengo 3 modulos de ram 2 de 32 doble cara edo y uno de 32 simple cara edo. Tb tengo de 64 aunque no creo que rulen.
Gracias por todo!
PD: Pedazo de Banderin!
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My BlizzardPPC was overclocked to 280Mhz by uping the bus speed to 70Mhz (x4 multiplier) and didn't affect scsi.
BlizzPPC SCSI uses the 68k clock, so clocking PPC has no effect on it.
However, my BPPC run at 264MHz (66.0MHz bus, 4x multiplier)+ 64.1MHz (64.1MHz bus) using SCSI.
However, with such 68k bus overclocking the SCSI timing is skewed, which can result it erratic operation. Apparantly modern HW has high enough error tolerances in timing and everything seems to work fine. It may depend on the used SCSI devices though, so if you want to have 100% reliable SCSI, don't touch the 68k clock.
Oh, the A1200 is mostly powered off now, writing this on my Pegasos 600MHz where UDMA IDE is 5x faster than the BPPC SCSI2 anyway... :-)