Search found 32 matches

by nukebloodaxe
Tue Mar 28, 2017 5:32 am
Forum: Hardware
Topic: Failure expanding RAM with SIMM 72
Replies: 38
Views: 4116

Re: Failure expanding RAM with SIMM 72

Hmm, probably the hardest part would be removing the 16 individual chips from your MB. Could you post a picture of the in-place upgrade you have performed? It would make it easier for all of us to see what is going on; a picture is worth a thousand words and all that ;)
by nukebloodaxe
Sat Mar 25, 2017 10:52 am
Forum: Hardware
Topic: STe Weird Problem (black and white stripes on screen)
Replies: 9
Views: 1109

Re: STe Weird Problem (black and white stripes on screen)

The stripes usually indicate a memory fault, but after your playing around its starting to sound more like a GLUE chip fault; are you using copper wire for your fix to the CPU pin, or something else?
by nukebloodaxe
Thu Mar 23, 2017 5:04 am
Forum: Hardware
Topic: STE BOOSTER V1 32MHZ & FAST-TOS
Replies: 199
Views: 27214

Re: STE BOOSTER V1 32MHZ & FAST-TOS

In terms of further testing, a diagnostic cartridge will bypass the TOS ROMS and allow you to see if the TOS ROMS are really at fault, or if there is a timing issue. This is what I thought as well, until I was reminded of (and verified) that the check for the diagnostic magic, and jump to cartridge...
by nukebloodaxe
Wed Mar 22, 2017 6:51 am
Forum: Hardware
Topic: STE BOOSTER V1 32MHZ & FAST-TOS
Replies: 199
Views: 27214

Re: STE BOOSTER V1 32MHZ & FAST-TOS

Okay the soldered pin positions appear to all be correct, the W103 connection is using a trace like mine, so all good there as well. Interesting arrangement for the jumpers, but they appear to be okay (one is leaning over, but they both appear to be connected.) In the photos I cannot see the SIL fac...
by nukebloodaxe
Tue Mar 21, 2017 8:51 am
Forum: Hardware
Topic: STE BOOSTER V1 32MHZ & FAST-TOS
Replies: 199
Views: 27214

Re: STE BOOSTER V1 32MHZ & FAST-TOS

bishopco3, scroll down exoss's assembly guide page for the CPU booster, you will see my guide in there as well as a link. I have some closeups of the soldering points for the various chips. Could you double-check everything is in order when you compare? With the white screen, I have a non-modded STE...
by nukebloodaxe
Sat Mar 18, 2017 11:58 am
Forum: Hardware
Topic: Is there a known issue with the Mega ST 4
Replies: 6
Views: 1084

Re: Is there a known issue with the Mega ST 4

That's rather interesting, so I take it the chip was in just the right position so that pressure was lifting it partially out of the socket and away from the contacts. Out of interest, which chip was affected? [for future reference.]
by nukebloodaxe
Wed Mar 15, 2017 5:11 am
Forum: Hardware
Topic: Is there a known issue with the Mega ST 4
Replies: 6
Views: 1084

Re: Is there a known issue with the Mega ST 4

That sounds to me like something might be shorting to earth. The alternative is that something is being flexed that should not be, and that is causing a contact to part somewhere. Try checking areas where components on the motherboard may come into contact with the case, and it wouldn't hurt too muc...
by nukebloodaxe
Sat Mar 11, 2017 11:40 am
Forum: Hardware
Topic: Loose TOS Sockets risers - help with remedy
Replies: 13
Views: 1958

Re: Loose TOS Sockets risers - help with remedy

I have one of these particular adaptor boards, so I am familiar with how much of a problem they are to fit into the standard dip sockets. The particular problem you are facing with the over-height socketed chip is new to me. Might I suggest the following? Unsolder the current pin-strips and sockets ...
by nukebloodaxe
Mon Mar 06, 2017 9:31 am
Forum: Hardware
Topic: Axial 4,700uF replacement prototype board.
Replies: 48
Views: 4681

Re: Axial 4,700uF replacement prototype board.

One thing that people tend to overlook with capacitors is that they eventually dry out... then the magic smoke comes out unexpectedly ;) They also have a run-time and shelf-life, so given that the caps we are looking at were effectively fresh between the mid 80's to early 90's, we are looking at a r...
by nukebloodaxe
Fri Mar 03, 2017 6:18 am
Forum: Hardware
Topic: Axial 4,700uF replacement prototype board.
Replies: 48
Views: 4681

Re: Axial 4,700uF replacement prototype board.

Ceramics used in the audio stages will give better quality for starters, all the "hiss" comes from electolytics. I know this well as I have designed many amplifiers over the years. Anyone using them in audio paths should be shot. Though price is always a factor. ... Someone suggested addi...
by nukebloodaxe
Fri Mar 03, 2017 6:08 am
Forum: Hardware
Topic: Axial 4,700uF replacement prototype board.
Replies: 48
Views: 4681

Re: Axial 4,700uF replacement prototype board.

if they are around a tenner , then put me down for five :) If I order 250 caps the price comes right down, though thats like 32 boards.. I guess thats a sensible number to stock up on anyway. Also depends if people want this as a kit, or assembled ?, as assembling stuff is very time consuming. Pers...
by nukebloodaxe
Thu Mar 02, 2017 8:55 am
Forum: Hardware
Topic: Axial 4,700uF replacement prototype board.
Replies: 48
Views: 4681

Re: Axial 4,700uF replacement prototype board.

I'd be interested in a small quantity of these (let's say 7 at most) to upgrade the machine collection my end. I am especially interested in one-shot replacements using ceramic SMTs where possible, as they will likely outlive the lifetime of the other components on the boards. However, ceramics or e...
by nukebloodaxe
Wed Mar 01, 2017 10:10 am
Forum: Hardware
Topic: Overall strategy for hardware mods, upgrades, clones
Replies: 126
Views: 11036

Re: Overall strategy for hardware mods, upgrades, clones

Personally, I look at what has been done before regarding CPU designs and compatibility, which mainly involved the presence of a sub-core which handled legacy tasks. There is a late example of an Atari product which did have a hybridized CPU architecture, and that was the STE+, which was effectively...
by nukebloodaxe
Wed Jan 18, 2017 6:26 am
Forum: Hardware
Topic: Anyone recognizes this type harddisk?
Replies: 30
Views: 3322

Re: Anyone recognizes this type harddisk?

Key thing is that it spotted the adaptor, that is a start, have you identified the ACSI ID yet? It is essentially the bit that the drive is mapped to, and if the drive is dead the adaptor will appear but no ACSI ID will be assigned; I'm a bit fuzzy on this, haven't run a normal HDD for a very long t...
by nukebloodaxe
Mon Jan 16, 2017 3:39 am
Forum: Hardware
Topic: Anyone recognizes this type harddisk?
Replies: 30
Views: 3322

Re: Anyone recognizes this type harddisk?

With setting up an HDD using the ICD tools, which you mentioned, the CosmosEX documentation page features a variety of tutorials on how to format an SD card using ICD. The same methods apply to an HDD, so have a read and see how you go: http://joo.kie.sk/?page_id=415 I am making a big assumption tha...
by nukebloodaxe
Fri Jan 06, 2017 11:00 am
Forum: Hardware
Topic: Refurbish an Atari ST in Bad shape ?
Replies: 7
Views: 1396

Re: Refurbish an Atari ST in Bad shape ?

Isopropyl alcohol? I've found it'll shift some seriously bad gunk, but it probably won't help with the bad smell.
by nukebloodaxe
Fri Jan 06, 2017 10:51 am
Forum: Hardware
Topic: Faulty DMA chip??
Replies: 5
Views: 967

Re: Faulty DMA chip??

With Australia you probably have a computer Museum in the country [or a Retro computer specialist company,] they usually have contacts with specialists that deal with old computer hardware. I'd contact such a museum, and see if they know someone who can help.
by nukebloodaxe
Tue Dec 13, 2016 6:56 am
Forum: CosmosEx
Topic: TOS 1.00 & CosmosEx
Replies: 19
Views: 3784

Re: TOS 1.00 & CosmosEx

I agree, ijor, TOS 1.0 can be used with HDDs without problems if you are careful. As a child, I grew up with a 1040stfm that had TOS 1.0, and no way of upgrading it due to my location at the time. I used it in conjunction with an ICD ACSI to SCSI converter and generally found it to be rock solid. Pe...
by nukebloodaxe
Tue Nov 08, 2016 5:53 am
Forum: CosmosEx
Topic: CosmosEx - new device for your Atari ST
Replies: 531
Views: 132966

Re: CosmosEx - new device for your Atari ST

*big thumbs up* I've placed my order for the moment :) Hilariously, the Raspberry pi you are selling with the kit is $7 more expensive my end if I buy it locally. BTW: The order goes through fine via Paypal, but is not listed in the site's order history for my account, but as all details go to you v...
by nukebloodaxe
Sat Oct 08, 2016 11:22 am
Forum: CosmosEx
Topic: Strange behaviour from CosmosEx (and RPi)
Replies: 3
Views: 1863

Re: Strange behaviour from CosmosEx (and RPi)

For clarification: What type of Atari machine do you have the CosmosEx installed into? Does the machine show the CosmosEx detection screen during boot? Do you have both the floppy and the ACSI connectors connected to the Atari machine? Is the Atari Keyboard connection to the CosmosEx plugged in, and...
by nukebloodaxe
Fri Oct 07, 2016 10:13 am
Forum: News & Announcements
Topic: exxos's webshop forcefully shutdown :(
Replies: 139
Views: 23574

Re: exxos's webshop forcefully shutdown :(

I've been doing a little bit of reading on PayPal and the holds they put on funds, so it looks like 90 to 180 days before a withdrawal of frozen funds can be made. However... depending on how you wish to treat them... I note that PayPal appears to roll over on its back when taken to a small claims c...
by nukebloodaxe
Thu Oct 06, 2016 9:32 am
Forum: News & Announcements
Topic: exxos's webshop forcefully shutdown :(
Replies: 139
Views: 23574

Re: exxos's webshop forcefully shutdown :(

Excellent job Chris the shop is looking really nice. I did run into a problem though, detailed below [I hope it's okay to do store debug in this thread.] I've tried to do a purchase, of one new-type PSU unit, however after going through all the steps [including payment portal] I eventually hit Harry...
by nukebloodaxe
Sun Sep 25, 2016 9:08 am
Forum: Hardware
Topic: Were STEs produced in smaller numbers compared to STF/STFMs?
Replies: 14
Views: 2347

Re: Were STEs produced in smaller numbers compared to STF/STFMs?

I browse ebay now and again looking at retro hardware for sale, and while 520 and 1040STs come up pretty regularly (I picked up a 1040STF on ebay for a decent price), I don't think I've ever seen a STE for sale on ebay. Were they produced in much lower volumes compared to the original ST models? I ...
by nukebloodaxe
Sat Sep 03, 2016 10:06 am
Forum: News & Announcements
Topic: exxos's webshop forcefully shutdown :(
Replies: 139
Views: 23574

Re: exxos's webshop forcefully shutdown :(

exxos, do you have contact with any of your old teachers? If so, then they can help you out with documentation. Also, you are publicly identified in the following video clip broadcast on TV: https://www.youtube.com/watch?v=txlTee8FrYw&feature=youtu.be I know how much of a pain sorting out docume...
by nukebloodaxe
Tue Aug 30, 2016 6:41 am
Forum: Hardware
Topic: Monitor splitter?
Replies: 8
Views: 1829

Re: Monitor splitter?

You might have luck by using an ST monitor to composite cable, and then using an RCA splitter like this one: http://www.ebay.com/itm/Lot10-3-GOLD-RCA-Y-Splitter-Female-Dual-MALE-Audio-Video-Adapter-Cable-Cord-SHdi-/291837993259?hash=item43f2e6612b:m:mqa6wXYVzty0L1BRABJrMsA It's a quick and dirty app...

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