|
22 November 2010, 19:42
|
#1 |
|
Registered User
Join Date: Oct 2010
Location: Fareham Hampshire
Age: 54
Posts: 142
|
Help with missing capacitor on Apollo 1240
I've managed to pick up a non working apollo 1240@40 expansion card but it has a capacitor missing. What value tantalum cap can i replace it with?
I have little electronics knowledge so please be gentle with me. 
|
|
|
22 November 2010, 20:14
|
#2 |
|
Banned
Join Date: Jan 2007
Location: France
Posts: 655
|
47uF 16v
|
|
|
|
22 November 2010, 20:37
|
#3 |
|
Registered User
Join Date: Oct 2010
Location: Fareham Hampshire
Age: 54
Posts: 142
|
|
|
|
|
22 November 2010, 21:35
|
#4 |
|
Registered User
Join Date: Oct 2010
Location: Fareham Hampshire
Age: 54
Posts: 142
|
Replaced and card still not working :-(
|
|
|
|
23 November 2010, 06:03
|
#5 |
|
Registered User
Join Date: Sep 2009
Location: Norway
Posts: 1,715
|
No offense but good luck - the Apollo 1240-1260 cards are the worst piece of accelerators in human history. They tend to mysteriously not work even though everything seems to have good contact and so on.
|
|
|
|
23 November 2010, 06:59
|
#6 |
|
Registered User
Join Date: Sep 2010
Location: south shields
Posts: 140
|
is the crystal fully inserted or try cleaning the contacts on the card and the mobo
|
|
|
|
23 November 2010, 07:48
|
#7 |
|
Banned
Join Date: Jan 2007
Location: France
Posts: 655
|
The PCB seems to be the problem with Apollo boards : not good quality...
|
|
|
|
23 November 2010, 08:33
|
#8 | |
|
Registered User
Join Date: Mar 2009
Location: Poland
Posts: 339
 |
Quote:
 .Onboard accumulator is very problematic - I can confirm that. Best to remove it. But if card is used properly - no problem at all: card can work 060@80MHz without ANY problems for really long time. I know this because I did several upgrades and no claims from the users. So Apollo cards - if used properly - are very reliable as other turbo boards.
|
|
|
|
|
23 November 2010, 09:47
|
#9 |
|
Registered User
Join Date: Sep 2009
Location: Norway
Posts: 1,715
|
Yeah right. My "Apollo 1260" upgraded 1240 gives me a grey screen and nothing more (not even early-startup if I hold both mouse buttons)...
I've tried several A1200s, same... My Apollo: - 5.60 EEPROM soldered to PCB. I tried other 060 boot ROMs (5.61 etc) when it was socketed. Same. - MECH131 + other MECH chip soldered to PCB - no lose contact, no shorts etc... - 50MHz crystal soldered to PCB - Cosmos desoldered the F74 chip to check traces under it, they all look good, then I soldered on another F74 SMD chip that I know works. - Working 060 CPU soldered to PCB - excellent soldering by Cosmos, no gaps etc! - Working 5v->3.3v regulator, outputs 3.28v - CLKEN set to GND (as it should on 50MHz non-overclocked 060). Tried with CLK, same error. - Tried with a lot of RAM modules and even without... - Tried to fiddle a lot will all the jumpers! - Tried other crystals... This is my second Apollo 1240 that dies when upgraded to 1260. I give up, wasted SO much money.. It's unbelievable. |
|
|
|
23 November 2010, 09:56
|
#10 | |
|
Registered User
Join Date: Mar 2009
Location: Poland
Posts: 339
|
Quote:
|
|
|
|
|
23 November 2010, 11:17
|
#11 |
|
Banned
Join Date: Jan 2007
Location: France
Posts: 655
|
>I did about 15 Apollo 1240->Apollo 1260 (various speed from 50MHz to 80MHz) upgrades in past two years. No problem with any of these.
Whaou, lucky guy... For me, Apollo upgrade is OVER... Only Blizzard 1240 to 060 now=> works all the time without ANY problems... |
|
|
|
23 November 2010, 11:58
|
#12 |
|
Registered User
Join Date: Oct 2010
Location: Fareham Hampshire
Age: 54
Posts: 142
|
I used to own an Apollo 1260 sometome ago and i have to say it was solid and performed well.
|
|
|
|
23 November 2010, 15:14
|
#13 |
|
Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
|
don't boot, first change a xtal, second reprogram the eprom
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Missing SMD component on Apollo 1240 | 8bitbubsy | support.Hardware | 11 | 21 October 2010 05:05 |
| For Sale Apollo 1240 | twizzle | MarketPlace | 24 | 08 November 2009 19:33 |
| upgrading Apollo 1240 | @UAE | support.Hardware | 2 | 20 May 2007 15:09 |
| Battery for Apollo 1240 !! | @UAE | support.Hardware | 5 | 09 December 2006 20:55 |
| Apollo 1240 | DDNI | support.Hardware | 34 | 20 June 2006 20:29 |
|
|
