Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: ami_junki on November 19, 2008, 09:12:31 AM

Title: Viper 030/28 RTC 8 mb issues
Post by: ami_junki on November 19, 2008, 09:12:31 AM
finally got back from the hospital today to plug in my viper 030/28 8mb into my a1200 however i am running into some technical problems.  with the jumpers set to 8mb the power light starts to flash, then i get a red screen and the power light start to flash brighter and faster until the screen resets in a flurry of white dots.  If i set the jumpers to a different position the machine boots with no fast ram though, it recognises the 030 and FPU and realtime clock.  could this be due to faulty ram?  cheers guys!

update:

managed to get the 8mb ram recognised yay!  now for another question, is there a patch anywhere which will allow me to use the pcmcia port with the viper?  i seem to remember there was one but i could be mistaken.
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: darksun9210 on November 19, 2008, 09:59:29 AM
i've had a little look, and from what i can see, it seems that the Viper is PCMCIA friendly :-)
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: ami_junki on November 19, 2008, 10:09:37 AM
nice one, hmm i wonder what is up with it, heheh now it just failed on me again though, maybe i got a dud board.
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: rkauer on November 19, 2008, 05:47:01 PM
 I think you need to check the solder joints on the 030 processor and memory slot.

 A 030 processor heats a lot (not like a 040, of course), and after some years of heating-colding cycles some pin can develop a bad contact. Specially if it is a PGA unit. PLCC chips don't suffer this issue too often.

 Another good candidate are the pins of the accelerator itself. Just carefully pry 'em to make better contact with the edge connector of the 1200.
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: save2600 on November 19, 2008, 06:09:02 PM
@ ami_junki:

What did you have to do to get the 8mb ram recognised? Was it a bent pin or cold solder? Or incorrect jumper settings?
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: ami_junki on November 20, 2008, 12:17:23 AM
thanks I will have a look at the pins, I cleaned the board connector and it seemed like the board recognised the fast ram after that.  i think it might be down to a flaky motherboard, it might be too old.
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: NovaCoder on November 20, 2008, 12:59:04 AM
I always clean my expansion slots with PCB cleaner before wacking on an accelerator card.
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: ami_junki on November 20, 2008, 11:35:25 AM
cheers!  can`t seem to get the pcmcia port to work with the card in though, i am using classic wb and installed the ADF kit from Amiga Kit and the Network card kit but when the card is in it still doesn`t see the PCMCIA card....
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: zipper on November 20, 2008, 11:41:57 AM
Externe Erweiterungen/PCMCIA-Karten/PCMCIA-HD
Wenn Sie das Turbosystem mit mehr als 4MB verwenden, so
können z.B. PCMCIA-Karten/Erweiterungen nicht betrieben werden,
da sich die Speicheradressen überschneiden. Abstürze sind die Folge!

In plain English: it's not PCMCIA friendly if 8 MB is used.
(from amiga.resource.cx)
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: darksun9210 on November 20, 2008, 01:12:42 PM
woops, sorry, i got my info from amiga hardware book. note to self, "only comment on stuff have personal expirience on" :lol:
Title: Re: Viper 030/28 RTC 8 mb issues
Post by: klx300r on November 20, 2008, 01:27:31 PM
Quote

zipper wrote:
Externe Erweiterungen/PCMCIA-Karten/PCMCIA-HD
Wenn Sie das Turbosystem mit mehr als 4MB verwenden, so
können z.B. PCMCIA-Karten/Erweiterungen nicht betrieben werden,
da sich die Speicheradressen überschneiden. Abstürze sind die Folge!

In plain English: it's not PCMCIA friendly if 8 MB is used.
(from amiga.resource.cx)


ya learnt this the hard way..thats why Blizzard cards are the way to go :idea: