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Forum: support.Hardware 18 May 2020, 07:08
Replies: 18
Views: 878
Posted By Mathesar
I used the 4pin PWM version as it it builds op...

I used the 4pin PWM version as it it builds op higher pressure according to Noctua.
Forum: support.Hardware 17 May 2020, 21:21
Replies: 48
Views: 2,906
Posted By Mathesar
Any news?

Any news?
Forum: support.Hardware 17 May 2020, 21:17
Replies: 18
Views: 878
Posted By Mathesar
Encouraged by this thread I finally replaced my...

Encouraged by this thread I finally replaced my noisy A3000 fan.
I used the noctua NF-A8 PWM. To verify whether the new fan moves as much air as the old one I did the "trashbag test":...
Forum: support.Hardware 17 May 2020, 20:28
Replies: 4
Views: 356
Posted By Mathesar
That, and most scopes are not that accurate when...

That, and most scopes are not that accurate when it comes to measuring frequency. For the kind of accuracy you need for an RTC clock you really need a dedicated counter. That said, my cheap ass Rigol...
Forum: support.Hardware 14 May 2020, 21:19
Replies: 27
Views: 904
Posted By Mathesar
I always disable javascript when coming here :p ...

I always disable javascript when coming here :p
Wouldn't an FPU help with faster jpeg decoding?
Forum: support.Hardware 10 May 2020, 08:59
Replies: 10
Views: 319
Posted By Mathesar
Those were unloaded reading. So, they don't...

Those were unloaded reading. So, they don't account for cable losses over the cable under typical loading.
However, it seems plausible that an unloaded voltage of 5.2 to 5.3 is about right.
Forum: support.Hardware 09 May 2020, 14:06
Replies: 10
Views: 319
Posted By Mathesar
5.3V might be just about right so I have been...

5.3V might be just about right so I have been told.
See my adventures with an A500 PSU here: http://eab.abime.net/showthread.php?t=92593
Forum: Amiga scene 05 May 2020, 08:54
Replies: 412
Views: 56,144
Posted By Mathesar
You made it to one of my favourite sites,...

You made it to one of my favourite sites, hackaday!!!!
https://hackaday.com/2020/05/04/doom-clone-shows-what-an-alternate-reality-amiga-couldve-had/
:agree
Forum: Amiga scene 05 May 2020, 08:51
Replies: 412
Views: 56,144
Posted By Mathesar
Great video again. Also, I didn't mention it...

Great video again.
Also, I didn't mention it last time, but I like the intro :great

The fact that the video series deal with level design instead of the more technical aspects of the game is...
Forum: Amiga scene 28 April 2020, 20:49
Replies: 74
Views: 4,338
Posted By Mathesar
At first I had a Blizzard1230IV in my A1200, then...

At first I had a Blizzard1230IV in my A1200, then a BlizzardPPC/bvision. I liked the Blizzard1230IV most. This card was rock stable, fast and a perfect fit for the A1200. The PPC was slow, a software...
Forum: Amiga scene 28 April 2020, 18:16
Replies: 74
Views: 4,338
Posted By Mathesar
Tandy Color Computer II > C64 > Amiga 500 > Amiga...

Tandy Color Computer II > C64 > Amiga 500 > Amiga 1200 > Amiga 3000 > Compaq PC > Shuttle > Sony Vaio (current)

All of these companies except Shuttle stopped making computers :crazy
Forum: Amiga scene 26 April 2020, 14:25
Replies: 412
Views: 56,144
Posted By Mathesar
You'll find out when EAB goes down! :laughing

You'll find out when EAB goes down! :laughing
Forum: Amiga scene 24 April 2020, 22:48
Replies: 90
Views: 5,080
Posted By Mathesar
It would run workbench of course! On a tg68 core!...

It would run workbench of course! On a tg68 core! Ok, so no whatsapp, youtube or other apps then but we could have a phone app, texting app, play dynamite online, run ibrowse and a mail client. Play...
Forum: Amiga scene 24 April 2020, 22:24
Replies: 90
Views: 5,080
Posted By Mathesar
My dream Amiga would be neither an all-in-one nor...

My dream Amiga would be neither an all-in-one nor a desktop computer....
It is that I don't have the time but otherwise I would build an Amiga mobile phone. Like this:...
Forum: Amiga scene 24 April 2020, 22:09
Replies: 90
Views: 5,080
Posted By Mathesar
Not all monitors handle interlaced modes...

Not all monitors handle interlaced modes correctly. Also, not all monitors can sync to 15khz. At least not analog. Maybe a next gen Amiga would be better of with an HDMI output.

As for HD...
Forum: Amiga scene 24 April 2020, 20:37
Replies: 90
Views: 5,080
Posted By Mathesar
If you would like to design a new kick-a$$ Amiga...

If you would like to design a new kick-a$$ Amiga make it 100% compatible. So, make it an AGA machine with some nice fast CPU and maybe some more chip ram and just make everything faster:

Faster...
Forum: support.Hardware 24 April 2020, 07:06
Replies: 48
Views: 2,906
Posted By Mathesar
Yes, first get back to a working 3630 setup by...

Yes, first get back to a working 3630 setup by reverting everything back exactly the way it was.
Then, now that you got a scope, try to measure some stuff on the A3560, starting with the +3.3V.
Forum: support.Hardware 23 April 2020, 22:33
Replies: 3
Views: 269
Posted By Mathesar
Do you have some more info? Is the speed more of...

Do you have some more info? Is the speed more of less?
Have you tried disabling 68030.library. I have never used those libraries when running a 030.
Forum: support.Hardware 23 April 2020, 16:47
Replies: 48
Views: 2,906
Posted By Mathesar
Yes, I am curious too. I hope the A4000 is still...

Yes, I am curious too. I hope the A4000 is still alive...
Forum: Amiga scene 22 April 2020, 18:34
Replies: 412
Views: 56,144
Posted By Mathesar
Wonderful to see the engine in action again. The...

Wonderful to see the engine in action again. The red key structure looks amazing!
Keep up the good work. Can't wait to run it on a real 500.
Forum: support.Hardware 20 April 2020, 08:56
Replies: 48
Views: 2,906
Posted By Mathesar
"Weird" problems and A3660 can also be caused by...

"Weird" problems and A3660 can also be caused by an instable +3.3V power supply to the 68060 chip. Can you check the +3.3V with a scope?
See here:...
Forum: Amiga scene 15 April 2020, 22:15
Replies: 12
Views: 1,146
Posted By Mathesar
The intro compo was superb and I like both top 2...

The intro compo was superb and I like both top 2 demos.
The credits bouncing letters and the scroller in Columbia are very nice.
Good music too and all that in 64k....

Truly amazing!
Forum: News 13 April 2020, 19:43
Replies: 91
Views: 10,968
Posted By Mathesar
I just installed AmiSSL 4.5. It works perfectly...

I just installed AmiSSL 4.5. It works perfectly on my 68LC060 so I just bought a new key for iBrowse 2.5 :cool
Well done :great
Forum: support.Hardware 12 April 2020, 22:11
Replies: 23
Views: 1,847
Posted By Mathesar
Ripple current is more of an issue on the input...

Ripple current is more of an issue on the input side of a switched dc/dc converter. A buck converter with a small input cap and a low impedance path to tbe power source will draw a lot of ripple...
Forum: support.Hardware 12 April 2020, 22:05
Replies: 23
Views: 1,847
Posted By Mathesar
I don't hear Jens using the words "current...

I don't hear Jens using the words "current ripple" in this video.
What I did find interesting in his video is how well the old PSU's held up in the ripple test. Old "dried up" electrolytic...
Forum: support.Hardware 12 April 2020, 11:36
Replies: 23
Views: 1,847
Posted By Mathesar
Ripple can be bad, but it depends on the...

Ripple can be bad, but it depends on the application. For the Amiga, I don't think it is really critical. My own experience with 060's shows that they can handle a lot of ripple before things get...
Forum: support.Hardware 12 April 2020, 09:50
Replies: 23
Views: 1,847
Posted By Mathesar
The voltage drop compensation circuit is...

The voltage drop compensation circuit is basically a negative resistance. I have built something similar in my previous job to compensate the changing resistance over time for a "liquid"...
Forum: support.Hardware 09 April 2020, 11:44
Replies: 18
Views: 878
Posted By Mathesar
What about this one: ...

What about this one:
https://noctua.at/en/nf-a8-flx

Slightly less maximum airflow at 50m3/hr but quieter and higher pressure.
The A3000 cabinet is pretty crowded so it probably builds up some...
Forum: Nostalgia & memories 06 April 2020, 22:25
Replies: 101
Views: 7,153
Posted By Mathesar
I don't have any real regrets, I still have my...

I don't have any real regrets, I still have my A3000 after all. Although I do regret selling my Blizzard 1230IV back in the days in favor of a BlizzardPPC 040/200 plus bvision. The bvision was...
Forum: support.Hardware 03 April 2020, 19:52
Replies: 18
Views: 878
Posted By Mathesar
Does anybody know the airflow rating of the...

Does anybody know the airflow rating of the original fan?
My experience with low noise fans is that they often move less air than normal fans.
I too find the fan in my A3000 extremely noisy but I...
Forum: support.Hardware 28 March 2020, 21:54
Replies: 20
Views: 1,173
Posted By Mathesar
I am getting about 3,5MB/s using the A3000's...

I am getting about 3,5MB/s using the A3000's onboard SCSI.
That is in sync mode on a Quantum Atlas IV (7200rpm uw-SCSI)
With a SCSI2SD v4 it is doing about 1.1MB/s
Forum: Hardware mods 19 March 2020, 10:53
Replies: 28
Views: 3,455
Posted By Mathesar
That is perfect! The Atmel/Microchip GALs are the...

That is perfect! The Atmel/Microchip GALs are the only ones that are still available and be able to program them with the TL866 is very good news indeed!

PS: are you building an A3660 as well?...
Forum: Hardware mods 18 March 2020, 16:13
Replies: 5
Views: 986
Posted By Mathesar
I'm surprised that works. What kind of foil did...

I'm surprised that works. What kind of foil did you exactly use?
I would expect you'd need something like mu-metal to shield the magnetic field of the speaker magnet.


But great that it worked!...
Forum: Hardware mods 15 March 2020, 14:39
Replies: 4
Views: 758
Posted By Mathesar
V4, V5 and V5.1 all use the same basic design. V4...

V4, V5 and V5.1 all use the same basic design. V4 is the basic design and the only one that is open source hence this is why I used it. V5 has a different terminator design that can be activated...
Forum: Hardware mods 15 March 2020, 13:44
Replies: 4
Views: 758
Posted By Mathesar
custom SCSI2SD for A3000

I have designed a custom version of the SCSI2SD V4 board.
It will be released under GPL as per the original license.

I was struggling to exchange files between my PC and my A3000. I have a...
Forum: Hardware mods 14 March 2020, 21:36
Replies: 301
Views: 32,944
Posted By Mathesar
I think A4000/40 means a 25MHz 040 in AIBB, not a...

I think A4000/40 means a 25MHz 040 in AIBB, not a 40MHz 040.
That would mean this accelerator is about on par with a 50MHz 060 in this test?
(Pretty good!)
Forum: Hardware mods 14 March 2020, 21:27
Replies: 301
Views: 32,944
Posted By Mathesar
A minimig can boot from SD. It also implements a...

A minimig can boot from SD. It also implements a Gayle style ide controller and has some software running on a microcontroller to emulate an ide drive. I guess this is something similar? Still very...
Forum: support.Hardware 11 March 2020, 20:09
Replies: 4
Views: 422
Posted By Mathesar
Not neccesarily, there is also something called...

Not neccesarily, there is also something called read disturbance.
You see, everytime you read from a sector on an SD-card, you also "disturb" the secors around it. Once a sector has been disturbed...
Forum: Retrogaming General Discussion 05 March 2020, 14:31
Replies: 61
Views: 4,918
Posted By Mathesar
Well.... I have an A3000 with an A3660 and I'm...

Well.... I have an A3000 with an A3660 and I'm basically stuck to a maximum of 16Mb on-board RAM ;)
Forum: Amiga scene 28 February 2020, 21:21
Replies: 412
Views: 56,144
Posted By Mathesar
I like those little things too. It shows that he...

I like those little things too. It shows that he is not only a programmer but also creative with level design. I guess that comes with being a demo coder :laughing. It makes the whole thing extremely...
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