Icky Projects

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PhilC
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Re: Icky Projects

Post by PhilC »

Icky wrote: Wed Nov 15, 2023 1:42 pm So one RAM and one Flash Memory chip for upgrading my Z88

512K SRAM internal upgrade
512K Flash Memory internal upgrade
I knew they looked familiar, just couldn't think why.
If it ain't broke, test it to Destruction.
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Icky
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Re: Icky Projects

Post by Icky »

Well that is the RAM chip (front and centre) desoldered. I'll do a separate topic on this Z88 upgrade.

IMG_3299.jpeg
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rubber_jonnie
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Re: Icky Projects

Post by rubber_jonnie »

Icky wrote: Mon Nov 20, 2023 6:18 pm Well that is the RAM chip (front and centre) desoldered. I'll do a separate topic on this Z88 upgrade.


IMG_3299.jpeg
Looking good so far.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Icky
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Re: Icky Projects

Post by Icky »

rubber_jonnie wrote: Mon Nov 20, 2023 6:44 pm Looking good so far.
I have a sort of love / hate relationship with these types of upgrades. They are pretty simple to do but half the time I end up plotting how to build a board with a SMD Flash ROM and RAM chip combined that would just plug-in with a couple of fly leads.
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rubber_jonnie
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Re: Icky Projects

Post by rubber_jonnie »

Icky wrote: Mon Nov 20, 2023 7:10 pm
rubber_jonnie wrote: Mon Nov 20, 2023 6:44 pm Looking good so far.
I have a sort of love / hate relationship with these types of upgrades. They are pretty simple to do but half the time I end up plotting how to build a board with a SMD Flash ROM and RAM chip combined that would just plug-in with a couple of fly leads.
LBH These things don't always work out as planned, as long as it works in the end 😁
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Icky
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Re: Icky Projects

Post by Icky »

That’s true. I did have a glitch before I started the upgrade and put it down to low batteries.

The LCD was all blue and after doing a hard reset the screen came up with the menu and low battery sign.

I then went ahead with replacing the RAM chip and am faced with the all blue screen again and hard reset doesn’t fix. Yes, I have used different batteries as well.

This, @rubber_jonnie you are right it’s not always as planned.
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rubber_jonnie
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Re: Icky Projects

Post by rubber_jonnie »

Icky wrote: Mon Nov 20, 2023 9:36 pm That’s true. I did have a glitch before I started the upgrade and put it down to low batteries.

The LCD was all blue and after doing a hard reset the screen came up with the menu and low battery sign.

I then went ahead with replacing the RAM chip and am faced with the all blue screen again and hard reset doesn’t fix. Yes, I have used different batteries as well.

This, @rubber_jonnie you are right it’s not always as planned.
Damn, that's annoying, but I'm sure you'll figure it out. Reminds me I need to get back to my dead HX-20.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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