Re: Suggestion to supercharge a 286 Olivetti
Posted on 2019-08-18, 08:37
So, no big chance to make this computer run much better... only swap to harris25mhz make a really improvement... It is possible to run it to 30/35/40Mhz???
Re: Suggestion to supercharge a 286 Olivetti
Posted on 2019-08-17, 11:09
https://drive.google.com/drive/folders/197ZQb … FKHGPLK-ry4pKqO I have this controller and this vga, i thing are better than the original on the mainboard or not?
Re: Suggestion to supercharge a 286 Olivetti
Posted on 2019-08-16, 21:56
About the CPU... i have seen that Harris and Intersil made a 20/25Mhz 286 CPU, it was easy for me to replace... it makes sense to do it? About the integrated VGA... is good for 286 DOS games? from monkey island 2 to wing commander, because thare are only two isa slot, one for ide controller and one …
Suggestion to supercharge a 286 Olivetti
Posted on 2019-08-16, 12:54
Frend gift me this computer: Olivetti M290-20 I know that 286 is very limited, but is fun to try to reach the maximum performance it can run. https://hwmuseum.pp.ua/computer/1551.html&filter[1]=41 I have some ISA vga, CREATIVE sbpro 2.0 , and a ISA ide/floppy controller with 30 pin ram cache to play …
Re: Pentium MMX Ceramic VS Plastic version
Posted on 2019-07-19, 20:51
There's both ceramic and PPGA version of quite a few P5 models: classic 166/200, MMX 166/200 (desktop models). The insides are the same, I presume. The metal heat spreader should be better at transferring the core's heat to the cooler. Btw I have both kinds of 166-sans-MMX and both are stable at …
Re: Help System stop on Building DMI Pool...
Posted on 2019-07-18, 14:22
Of course you can. A simple ESD is all that is needed to damage or destroy electronics. However, no one can really answer that based on your information. It there a battery (coin cell) on the SBC? If so, remove it and short the battery terminals for some seconds. That should zap all BIOS settings. …
Re: Help System stop on Building DMI Pool...
Posted on 2019-07-18, 13:32
Really guys.. i can destroy a new Board only trying out ten CPU??? can anyone help me? will you post some images of the bios ???
Help System stop on Building DMI Pool...
Posted on 2019-07-16, 09:21
Yesterday i try to swap different Pentium MMX in my SBC to find wich one is locked, after 10/15 Carefully CPU swap, tryng different multiplier, frequency ecc... the system whont boot!!! It Stop on Updating ESCD... Success Building DMI Pool I have try to load bios default but nothing suceed... there …
Re: Moving data between an old computer and a new one
Posted on 2019-07-15, 19:58
I had a bad experience using CF as a IDE drive on Amiga, Compact flash standard is not 100% IDE compatible and in some situation not workin. i had bad Amiga story about cf... i prefer to use a genuine ide hard drive or a Disk on module directly cinnected on the mainboard.
Re: Moving data between an old computer and a new one
Posted on 2019-07-15, 10:13
thanks for all this reply... i try to explain better.. if u must move multiple megabyte for sure i switch off the computer, detach the hard drive and connect it to a modern system. But if i only try little software that can store in a single floppy, detach the hard drive and connect every time is …
Moving data between an old computer and a new one
Posted on 2019-07-14, 20:36
Using a computer until 486 (without usb) means use of Floppy disk (not like zip100). what i can use for writing floppy on an intel i7 computer (Macbook Pro)? Usb floopy drive???
Re: Pentium MMX Ceramic VS Plastic version
Posted on 2019-07-13, 20:17
I asked this because I have a card with the 233mmx with the heatsink glued on and produce a very annoying noise. Unfortunately I can't install another CPU in plastic because the socket is not ZIFF and therefore it does not have hooks to block the heat sinks. I have to choose the heatsinks that hook …
Pentium MMX Ceramic VS Plastic version
Posted on 2019-07-13, 14:16
Today, checking my cpu collection, I found Pentium MMX in ceramic version. What is the difference between the ceramic and the plastic version? Do they have the same core and production process? L1 Cache? The only information I found is that the 233Mhz model is exclusive to the plastic version while …
Re: AMD 5x86 P75 without heatsink?
Posted on 2019-07-12, 18:14
My board is capable for sure, the only cpu that can’t handle is the Pentium Overdrive. Is a SBC 486 really good equipped. The only bad thing is that not have a ZIP Socket and i must use some tool to detach the DX2 Cpu that is actually inserted
Re: AMD 5x86 P75 without heatsink?
Posted on 2019-07-12, 17:24
ok i get it, as soon as i can unplug the DX2 I see to insert the 5x86 and try to see how it works. tnks guys
Re: AMD 5x86 P75 without heatsink?
Posted on 2019-07-12, 16:49
But... there is a version that not require cooling system?
AMD 5x86 P75 without heatsink?
Posted on 2019-07-12, 15:56
i have read in many places that this chip can work without cooling system... is true? Mine is labelled on top “heatsink and fan required” 😐
Re: suggestion for market
Posted on 2019-07-08, 07:15
I use it widely, but is more focused on Amiga
suggestion for market
Posted on 2019-07-07, 15:39
Could you suggest me a DOS retropc hardware trading site where I can sell some of my pieces that I don't need anymore? Like this forum not a generalistyc ebay
Re: P24D-S
Posted on 2019-07-06, 20:43
The P24D is a 486DX2-66 with write-back L1 cache, the "S" indicates that the chip supports power management features. You means that is like a "notebook" version? it was probably chosen because I had to work on a sbc.... how can i manage this power menagement feature? Why the card use this strange …
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