Included tags: CPU ×
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Acer Aspire One netbook FREE

VCFed about 5 months ago

Acer Aspire One D257-1699 in like-new condition (built 2011), Intel Atom N570 CPU ( 1.66 GHz 1MB K2 Cache), 1 GB RAM, 250 GB HDD, battery (condition suspect), Windows 7 Starter, reset to factory settings. Complete with power supply, Maxell low profile wire …
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Does Your SNES Have A Ticking Time Bomb Inside?

Time Extension about 5 months ago

"We REALLY need CPU replacements soon".We all know that vintage hardware won't last forever; ageing components eventually give up the ghost, and with each passing year, the pool of 'working' systems gets smaller and smaller – unless, of course, the commu …

Chicken vs. Egg - getting files on a CP/M machine

VCFed about 5 months ago

I'm putting together an S-100 CP/M machine that consists of a CPU board, a memory board, a dual CF disk storage board, and a keyboard, mouse, and display board. There is no disk controller card,and the CPU Monitor program is setup to use a serial interface …

Identify expansion card containing mc68020, xylinx xc3090 and ncr53c95

VCFed about 5 months ago

I acquired this expansion card and have no idea what system it belongs to, nor what its purpose is. It has an CPU - mc68020, FPGA - xylinx xc3090 SCSI controller - ncr 53c95. Does anyone know which system this card is used in/comes from ? …

How to write a floppy disk from an image file on a Compaq Portable III?

VCFed about 5 months ago

I have a Compaq Portable III and the system defaults to 1.2MB floppy drive after losing its settings (replace the battery for the clock chip DS1285). I would like to have a bootable Diagnostic floppy for a Compaq Portable III (286 CPU), for which I have d …

Four-voice polyphonic music on my S-100 Z80 system circa 1981-1982

VCFed about 5 months ago

A long time ago I was a Sydney schoolkid who had an australian Applied Technology S-100 system which my brother and I built from a series of kits. It comprised a DG680 CPU, ETI-640 VDU, ETI-681 PCG, and I honestly can't remember how much memory but it was …

Testing a Z80 CPU

VCFed about 5 months ago

Recently got a batch of Z80 CPUs and wanted to test them for functionality. I first used a Z80 NOP Tester to test them all. This basically straps the Data lines to 00h and then monitors the Address lines as the CPU cycle through the full memory map. The c …
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VAXServer, VAXStation or MicroVAX 2000?

VCFed about 5 months ago

Dear All, I have some issues to understand the various "names" of the "VAX in a vinecase" machines. I own two machines, both labelled as "VAXStation 2000". Both report during VMS Installation to be "VAXServers"; w …

PDP-11 Qbus Cards and Peripherals

VCFed about 5 months ago

I have the following PDP-11 Qbus cards and bus items I will be selling: M7504 DEQNA ethernet card, (2) KDJ11-A CPU cards, M8067 128k RAM, M8017 serial line interface card, BA214 Qbus back plan, H9278-A Qbus back plane, 5014144C 128k PAR/CSR. Prices on requ …

introduce yourself • Hello from Belgium!

Stardot about 5 months ago

Hi,I already made a few topics about my recent purchase, an Acorn A3010.It's now time to introduce myself. My name is Frank and I live in the East-Northern part of Belgium, close to the German/Holland border.My first computer was a ZX Spectrum 16k (later …

iMac G4 800MHz CPU SWAP

Mac OS9 Lives about 5 months ago

Hello, after a week playing with an iMac G4 800 that I acquired, I was able to SWAP the CPU for an XC7455@1333 and keep it stable at 1.3GHz. I'm not going to go into much detail about the explanations because I've been writing on my blog for a few …

Is there a case to be made for the 386?

VCFed about 5 months ago

My earliest family computer I can remember was a 386 running windows 3.1, so I've long had some fascination with the CPU. It must have been versatile, since they were still being manufactured for niche roles as late as 2009. That is some very long legs for …

IMSAI newbie, no idea what I'm looking at

VCFed about 5 months ago

I've had the case and panel for an IMSAI for a while and I just put together a CPU repro board from tindie. the front panel had some bad logic chips and a couple of troublesome switches, the CPU is untested since being assemble by me, and I need help und …

other vintage hardware, software and languages • Atari 520ST with thermal induced screen flicker

Stardot about 5 months ago

I have been restoring my 520ST that was fitted with 512kb expansion that pokes into the PLCC adapter and terminatesat the screen shifter IC. The external power supply has been fully recapped, all electrolytics (save the two non-polarones) are replaced on …

Seeking information on a NEC cpu found in an early Compaq portable computer

VCFed about 5 months ago

I recently bought a Compaq portable 1 computer to restore and use for fun. Based on the serial number it appears to have been assembled the 2nd week of 1984. When I ran various diagnostic programs the processor was simply identified as an 8088 which of cou …

Assembling a vintage AMD system

VCFed about 5 months ago

The other day I decided to assemble another computer out of spare parts because it makes the goblins in my head shut up for a few hours. Now 've had this MSI KT4AV in my inventory for a few years, and I found an Athlon XP 3200+ to put in it. Well after s …
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8-bit acorn hardware • ADC-06 65C102 Co Pro on a master 'Turbo'

Stardot about 5 months ago

Well friends, I'm looking for any ideas here.......I have an issue 2 ADC-06 board on a Master 128.It is 'running' but distorting the screen output initially.It only does this until the board is warm, then it works exactly as you would expect.I've had it r …

Windows 3.1 and TCP/IP over Ethernet

VCFed about 5 months ago

I recently got a vintage laptop: Compaq LTE 5000, with a Pentium-75 CPU and 24 MB RAM, which I already have running Windows 3.1. I would like this machine to have Internet connectivity (yes, I know Windows for Workgroups 3.11 and Windows NT 3.51 have alre …
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WHAT TO DO WITH A DEAF/DUMB/DEAD APPLE-1 CPU SECTION

Apple Fritter about 5 months ago

Since my famous IC kits have sold out earlier this year, more and more Apple-1 builders are struggling with getting their APPLE-1 up and running. This post is meant to show a method to at least get a clue where the cuprit is which causes the Apple-1 not to …

other vintage hardware, software and languages • Wanted - Apple IIe MMU 344-0010 B

Stardot about 5 months ago

Hi, my Apple IIe MMU has started to affect the 1Mhz clock. With the chip inserted the signal doesn't reach the CPU. Does anyone have a spare 344-0010 B I could purchase?Regards.Statistics: Posted by jduncalf — Mon Dec 18, 2023 7:57 pm — Replies 6 — …

NES (Nintendo Entertainment System) • NES Core Adding Stereo Sound Like the RGB Mod

MISTerFPGA about 5 months ago

Hi I’d like to request a feature:My rgb modded nes has the ability to separate the sound channels into sudo stereo were it sends some of the voices off the cpu to one channel and the rest to the other.I very much prefer this sudo stereo sound vs the mon …
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8-bit acorn hardware • 6502 CPU Card with SRAM in Model B

Stardot about 5 months ago

Picked this BBC up yesterday. It's got this CPU card with 24KB of SRAM.Can anyone shed light on how this would've worked? Is it just more RAM and/or a bank-switching? Was this board perhaps published in a magazine in the day? Any info would be great!Stati …

For Sale/Trade ... : $US

VCFed about 5 months ago

Hi, What I have to trade or sell: ADS PROM Blasters IMSAI RAM-4A Rev2 Static RAM Jade Computer Products Serial/Parallel Interrupt board MITS 88-S4K (Bare Board) XITEX Dallas SCT-100 Composite Video + Original Manual TeleTek SBC-1 Z80 CPU w/Manual SSM 4K …

8-bit acorn software: classic games • Chuckie Egg 2023

Stardot about 5 months ago

Hello.I read somewhere that arcade type games probably wouldn't be well suited to being run over the Tube so I thought I'd give it a try. After all, many arcade machines work fine with multiple CPUs sharing out the workload so why not a Beeb and a co-pro? …

Multiple microprocessors as a single CPU (not multiprocessing)

VCFed about 5 months ago

Beware this is a weird idea! I know that some Sun stations used two 68000 CPUs to implement virtual memory (one in advance of one instruction wrt the other). There is also a smart contraption named KimKlone which adds registers to a regular 6502. Are there …