Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: mikrucio on May 14, 2004, 12:19:38 AM
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I have got a second a1200 the other day.
now the problem is graphical corruption in displays
of 640x480 at 31khz on a vga mon.
the glitches are only small usually a line of pixels
change color, but can lead to a few more after heating some more.
the board is a i.d.4 board with E123C and E125C removed.
however the budgie revision is -01, and the person who did the fix, also wired 2 resisters onto 43 of alice?
this isnt needed i thought since it's only a revision -01
budgie?
I have put a heat sink onto alice to keep it cooler and it
works fine but i should not have to do this.?
are the resistors causing the problem??
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...I dunno, what are you trying to do with her? ;-)
Seriously, I once saw the same thing using the DblPal mode on a friend's 1200. The chip just gets hot when pushed.
He shoved a cooling rib onto it and it was fine thereafter.
The 1200 case isn't very well designed for heat dissipation, which is part of the problem.
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The case isnt on
Alice gets hot almost immedialty, within a minute
shes hot to touch! :-)
the resisters have to be stuffing it up i figure,
It isnt meant to have the pin 43 fix.
being an 1.D.4 mobo with -01 budgie.
unless it's another hack?
is there any other hacks that use pin 43 of Alice
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Why is Alice overheating?
Because you haven't put it in the fridge! :lol:
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Take a look at:
http://groups.yahoo.com/group/Amiga-Hacks/message/184
"Notes: use only small tip soldering (temp controlled) iron please.
certain types of alice gets funny things on the screen with dblpal hires
no flicker, maybe the same in NTSC (never twice the same color)"
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The Amiga 1200 is a very low quality computer. Get yourself one of the higher quality Amigas, like the 2000, 3000T, 500, or the Amiga 1000. The Amiga 600, 1200, 3000, 4000, and 4000T are low quality and you will have nothing but problems with these Amiga models. Trust me, I know what I am talking about.
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@BoingBoss
WTF are you talking about? Such a statement surely show that you do NOT know what you're talking about.
I'm not even going to argue this case cause it's just too stupid... sniff sniff... I belive I smell doomy.
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Why are you getting upset? I am only stating facts. :-o
The Amiga 1200 IS a piece of low quality CRAP! I had one so I should know. :roll:
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Keyword search:
"High quality computer"
"2000"
"1200 is crap"
All we are missing is "military grade" and we´ve got Doommaster... :lol:
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@BoingBoss
Hello there DoomMaster. Nice to have you back!
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BoingBoss wrote:
Why are you getting upset? I am only stating facts. :-o
The Amiga 1200 IS a piece of low quality CRAP! I had one so I should know. :roll:
i should think that i speak for everyone here when i say, stfu :-D
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@DoomMaster oh sorry... BoingBoss
If you are in fact stating facts then I would love to see the studdy on that with all the parameters (Need mil.spec. chips, can be trown from the 3rd floor window and have a chance of surviving and must be in the DoomMaster collection) used to conclude this so called "facts".
I've owned one or more A1200's through the last 6years and they've never let me down. I've owned 3 A3000, 3 A2000, 4 A1200, 2 A500, 4 A4000 and 2 A600 in the last 2 years of witch I've kept 1 A4000, 2 A1200 and 1 A600 (se sig.)... I think I should know too. :roll:
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Because there was an area of high pressure over Wonderland and she
forgot to put her hat on.
:-D :-D :-D :-D :-D :-D :-D :-D
Hey if you think that chip's hot you should see my EZ-VGA Plus on a
hot day, it gets so hot I can feel it under the desk! Must be the
flicker fixer chips.
Same with the '060, it's supposed to be cooler than the '030 but
sometimes gets too hot to touch.
What is the best way too cool things like this, 1" fan or some sort of
heatsink?
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Although the newer 060 chips obviously can handle running without any cooling, at least for quite a while, I wouldn't recomend it. After all it's an expencive chip and the cooler chip the longer it lives. I have cooling on all my 060's just to be on the safe side and feel better. :)
A 486/P1 heatsink and fan combo is a winner but any bigger heatsink kan be modded to fit (the bigger the better)... if you can't fit a fan or want to keep down noice then a big heatsink is enough. Mounting these babys on the CPU can be hard as the cards aren't prepared for it so you need to think outside the box a bit to make it work. Thermal compound will not be strong enough to hold the heatsink/fan on it's own but combined with a rubberband (at least 2 in case one fails) it should be enough. You don't want to do this on a 060 but on 040 chips I've even glued the heatsing to the corners of the chip to keep it in place.
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In my opinion and experience (see my sig LOL) I think ALL of the Amigas are of high quality. The only disadvantage is that on the newer cost reduced models the chips are surface mounted, so harder to replace. Other than that, all Commodore gear was very well constructed. I own almost all of 'em and they all work fine decades later. I actually like the 3000 and 4000's the most. I find the 2000 too big and bulky (that is why it is heavier, not because it is better Doomy!) The 2000 is hugh compared to the 3000 and 4000. Nice machine to upgrade, but the architecture is lacking compared to the 3000/4000. (Try getting a SCSI HD working with 32bit RAM, what a pain in the arse!) I myself prefer the 4000D.
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I had an Amiga 600 which would work ok for the first 10 or so mintues, then the Amiga would start drawing funny colored lines and then get even worse. It would happen when it got hot and when it accessed the floppy drive. But I konw for sure that when I cooled it down, then it worked just fine. I never had the chance to repair the problem, but then I ended up bining it because the keys were long gone broken, the guts ripped out of it, and the casing gone... But no worries though, i will definately have another Amiga sometime.
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Hi TjLaZer,
Try getting a SCSI HD working with 32bit RAM, what a pain in the arse!
You must not know what you are doing, because my SCSI hard drive works just fine with 32-bit ram. Try using a Commodore A2091 board in your Amiga 2000 Series computer and you will have better success. I use one in my Amiga 2500 with a 68040 board. Works great. :-D
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:lol: Doomy!
Oh do tell us again how the 2091 is the best SCSI card for the greatest amiga ever. Do...
Seriously, get yourself one of these (http://www.amiga-hardware.com/blizzard2060.html) for your A2500 and see how it compares. P5 may be long gone but they did design nice cards :-D
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I keep hearing the A500 era was the best because the chips were
socketed but people seem to forget that a socket lets oxidisation
occur so the possibility of impurities within a circuit would decrease
reliability wouldn't it?
If a chip goes wrong it's best to send it for repair anyway just
incase other damage has occured such as fuses blowing.
In my opinion mass-market products are better quality because anywhere
you remove the human element in production of a product - the more
precision built it is.
Humans don't do things the same everytime, so with products you either
get a bad batch (which would be recalled) or a complete line of
identical perfect machines.
Just out of interest, does anyone have a list of sales figures for
every Amiga model (including the CD32/CDTV)? It would be nice to see
which sold the best, A500 or A1200!
:-D :-D :-D :-o :-D
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Brian wrote:
@BoingBoss
WTF are you talking about?
OI! Don't feed the trolls!
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@BoingBoss
Hmmm... Yeah, I trust you. Seems my A1200 IS low-quality after all... Silly me, thinking it was good enough to withstand mains exposure to the mainboard, and carrying out dozens of well-known, not so well known, and quite positively homebrewed hacks. Obviously it's poor build quality wouldn't allow any of this, and 10 years on still be up for 20+ hours uptime as a router per day. After all, what would I know about whether it's of high quality. I'm only a mechatronic engineer.
You, sir, are a Muppet.
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@Hyperspeed
The 060 was designed not to require any cooling, and mine never got too hot to touch without a heatsink. I'd say it got as far as "warm" and stayed there... You got it clocked? Or maybe a voltage regulation issue? What model board is it on? Mine's on a DCE Blizzard. I'm thinking that maybe an older revision of the chip, or lower performance glue logic could be causing it to generate more heat.
Mine's now run at 66MHz for 4 years or so, no problems. When I clocked it it did get too hot to touch, so I put a 486 cooling fan on it, secured it with some "hi-tech" cable ties and heatsink paste, and now it's positively cool to the touch, can't be more than 25 degrees C. Such a fan will cost ya less than €10, and will usually have a pass-through for a drive power connector, so is very easy to fit.
Unless you have a custom modified tower, then you may have to cut a hole in the side of it for the fan (like me!) :-o
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Hyperspeed wrote:
Just out of interest, does anyone have a list of sales figures for every Amiga model (including the CD32/CDTV)? It would be nice to see which sold the best, A500 or A1200!
I faintly remember the A500 selling something like 1 mil. (?) and the A1200 a couple of 100k.
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@BoingBoss
Well I do know what I am doing. I am an Amiga Expert after all, see my sig :P I have a A2000 with a A2630 and DKB 2632 with 112MB 32-bit Fast RAM. I cannot DMA to the RAM on the DKB. I have to use the 2MB Chip and 2MB on the A2091 for it to work with a hack. Unacceptable. With the Zorro III Amigas this is not an issue. For this simple fact the A3000/4000's are better. ;)
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BoingBoss wrote:
Hi TjLaZer,
Try getting a SCSI HD working with 32bit RAM, what a pain in the arse!
You must not know what you are doing, because my SCSI hard drive works just fine with 32-bit ram. Try using a Commodore A2091 board in your Amiga 2000 Series computer and you will have better success. I use one in my Amiga 2500 with a 68040 board. Works great. :-D
Doomy,
You could at least try to blend in, you know, slip below the radar so to speak?
I'll do you a deal. You make an effort to actually be nice (ie. don't tell people that they do NOT know what they are talking about... amongst other things), and I won't make it my personal mission to blow your account away every single time I see you back here.
I personally have no problem with you returning to Amiga.org. I would prefer not to be able to identify you as easily as I could a giraffe in a mannequin factory, which is mainly down to your attitude.
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Why is Alice overheating?
Because...
You've turned her on! :lol:
(don't hurt me!)
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Because she's simply hot! :-D
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Hi MikeyMike,
I'll do you a deal. You make an effort to actually be nice (ie. don't tell people that they do NOT know what they are talking about... amongst other things), and I won't make it my personal mission to blow your account away every single time I see you back here.
DEAL :-D :sealed: