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Author Topic: Mirrored simm socket for Blizzard 1260?  (Read 2973 times)

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Offline RetrofanTopic starter

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Mirrored simm socket for Blizzard 1260?
« on: March 26, 2010, 10:31:51 PM »
I open this thread because I was wondering about desolder the simm memory socket of the Blizzard 1260 and solder the other side a mirrored one to have enough space...
Someone has done it?
 
I found this page that talks about back model simms sockets:
http://www.homestead-products.com/simtree.htm
 
What do you think?
Any other suggestion?
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #1 on: March 26, 2010, 10:39:43 PM »
Forget that page. They have tell me they don't have them... but perhaps somebody has?
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #2 on: March 27, 2010, 03:56:59 PM »
Thinking well, it hasn't has to be so difficult. I could desolder it and solder to the other side (would be better to put one with an angle). You'll could put the memory with the outside looking into.
The only modification would have to be the outgoing plastic cap that makes only possible to put the memory one way, that should have to be cutted and glued the other side...the left instead of the right.
Don't you agree?
« Last Edit: March 27, 2010, 03:59:52 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #3 on: March 27, 2010, 07:48:14 PM »
It won't touch the keyboard I believe, but would have to take measurements. I could put the socket flat or with an angle.
 Have you seen the Hawk ramboard?
I upload a photo.
Is exactly what I'm talking, with the simm socket inside the Amiga.
The thing is that it isn't a problem with the 16 mb memory, but I have just bought a 128 mb one (still haven't received it). I have heard people uses to remove the trapdoor because the memory won't fit with it on.
Still have to receive the memory. Although it has double sided chips, they are tsop ones, who are the thinniest, so I'm not sure if I will have the same problems.
I have heard of other people that although can put the trapdoor, they talk about too much heat given from the memory to the 68060.
 
This is what Amigadave told me:
 
"Unless you can get a double sided simm that uses extremely thin chips, it will not fit in the Blizzard 1260, unless your 1260's simm socket is different than mine, which holds my simm flat against the 68060 CPU.
 
I do not try to close the A1200's trap door cover on my A1200 so I have considered putting some 1/4 inch feet at each corner of the bottom of the A1200 case to raise it off the desk and having someone remove my flat simm socket and replace it with an angled simm socket on my Blizzard 1260 card so my simm module will no longer be resting against my 68060. That would allow me room to install a thin heatsink on the 68060 to keep it cooler and remove the heat from the 68060 transferring to the RAM chips. "
 
I have to see first if that's my case with the new memory. I don't like to have the trapdoor removed.
« Last Edit: March 27, 2010, 07:53:17 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #4 on: March 27, 2010, 10:28:48 PM »
Oh, yes, that's true, they are made a way (they aren't exactly one over other; the one up is placed to the right looking the back side of the blizzard) I coudn't solder it the other side. I must find a socket made back side. But I've heard they exist, at
http://www.homestead-products.com/simtree.htm they talk about back side simm sockets (but they don't have).
 
So, the Hack ram board already has a back side simm socket?
 
No, it has the design made to fit a normal socket the other side...
« Last Edit: March 27, 2010, 10:35:26 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #5 on: March 27, 2010, 10:39:15 PM »
I was thinking about that (answer to Castellen), but I never have seen the SCSI controller module to put another memory simm (sorry to tell that), so I don't know where it goes.
Does anybody have a photo of the blizzard scsi-kit IV mounted?
I mean, if it fits inside perhaps you could install it with the memory at the back side too?
« Last Edit: March 27, 2010, 11:02:07 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #6 on: March 27, 2010, 11:14:52 PM »
This is the memory simm I've bought. I asked to send the one in the center:
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #7 on: March 28, 2010, 01:57:05 PM »
Thanks for the photo. What I see there is that the rear part of the memory socket of the blizzard keeps above the SCSI kit, so with a mirrored angled simm soldered at the rear part, it could be possible to install both.
 
Added later:
Sorry, no, I should have to choose one or the other. An angled simm there coudn't fit because of the keyboard. In the Hawk ramboard it's at the center, so it has more room. In the Blizzard I could only put the same kind of simm connector, so woudn't be possible to put the SCSI kit.
« Last Edit: March 28, 2010, 03:41:29 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #8 on: March 30, 2010, 05:00:17 PM »
Hello:
So worried for nothing... Apart of that it only has taked 4 days to come from USA to the Canary Islands, it's the thinniest and shorter memory simm I've seen with 128 mb.
Look at the photos. The 128mb is the one atached to the Blizzard 1260, and the one below is a 16mb one. They are almost the same...!
 
Still I'm not going to put it, because first want to receive the floppy drive and to run it with the other (Hawk ram board), but I believe I will close the trapdoor without problems, don't you think?
« Last Edit: March 31, 2010, 03:21:22 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.
 

Offline RetrofanTopic starter

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Re: Mirrored simm socket for Blizzard 1260?
« Reply #9 on: April 05, 2010, 11:59:45 AM »
Finally I tried to put the blizzard with the 128 memory simm, and although the trapdoor closes, it was very tight, so I did some modifications to it. The memory needs around 2 mm more, so as the plastic of the trapdoor is very thick, I cutted a rectangle that fits the measurements of the memory simm and cutted an speaker grill to fit the hole. Later I covered the grill with a resin to avoid electric shorts.
Now the trapdoor closes right, without pressure, and it will be cooler even.
What do you think, Amigadave (and others)?
Here are a couple of photos of the trapdoor:
« Last Edit: April 05, 2010, 12:19:15 PM by Retrofan »
A1200, Lateral 32GB CF, internal Dvd, ACA 1230/56 with an MKII Fast ATA at 9,5Mb/s, another A1200 BPPC project in progress (more or less), and posting from my own/better C64x in my Tv using Hdmi.