• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Search results

  1. jessenator

    A 'once and for all' declaration regarding L88M mask MC68040 CPUs

    I've searched a few threads and wanted to make a place for a 'once-and-for-all' declarative thread regarding these final incarnations of the MC68040 CPU. I've read many things and heard many testimonials, but I wanted to definitively understand what people mean. Most of the time, this is what...
  2. jessenator

    Wombat (650, 800) board overclocking limitations

    I had some questions about oscillator swapping (overclocking) the Centris 650 (modified gestalt ID via on-board resistor), Quadra 650 and Quadra 800 boards. Namely some questions regarding the 'limiting factors' mentioned. So according to Marc on the archived clock chipping page: And then on...
  3. jessenator

    Case Screen Printing Variation (error?) on Quadra 700

    I was wondering if anyone has heard of the case screen printing varied on the same model, or if it changed during its run, or if it's just a one-off error? Not looking at "collector gold" here, just curious more than anything :)   I noticed this on my recently acquired Quadra 700, compared to...
  4. jessenator

    (Verbatim) VST for Macintosh UltraTek/66 IDE RAID (PCI) | SSD bootable Solution

    Having already given up on the SIL3112 scenario for my PowerTower, I've been on the lookout for another drive solution. I saw this card come up on eBay, and noticed the verbiage "For Macintosh" and took a gamble that it would play nice with Old World ROM Macs and become a (stable) drive...
  5. jessenator

    Understanding Drive Limitations & Sorting Issues with SSD Media

    Cross-referencing this comment from a different thread, sorry. I'm dealing with some SSD woes, I wanted to circle back on this, specifically, so thought a separate thread was appropriate. I've been going two separate routes with my PCI machines as far as storage so I hope I'm specific when...
  6. jessenator

    SetDate CDEV and Clones = shenanigans

    I know, we have probably 4 to 5 disparate threads regarding the 2020+ year issue with System 7, but I'm more interested to see if anyone has issues with their clone/MacOS Compatible machines. Thought about making this a thread in PCI PowerMac forum, but it's more software and might extend to...
  7. jessenator

    Very neat potential solution for our 30-pin Macs and wanting ALL THE MEMORY

    Maybe it's not new, per se, but I think this is a great DIY solution for the more enterprising among us. Wouldn't have known if not for this vid in my feed.
  8. jessenator

    68k (PPC emulation) color / CLUT shifting values?

    So ever since we had our family Performa 6218CD, ages ago, one of the things that bugged me about The Even More Incredible Machine was how it displayed. Something about its color scheme seemed very off compared to every other 256 color game I had used: I didn't really know how to distill what I...
  9. jessenator

    Sonnet Crescendo L2 G3 upgrade model compatibility

    So, I'm looking for a little clarity if there is any regarding the compatibility of the L2 version of the Sonnet Crescendo G3 upgrade. From what I've seen, most all will work on 64/54/65/5500 and similar-arch Macs/clones without issues. The oddballs are the LPX-40/Tanzania-based Macs/clones...
  10. jessenator

    SCSI CD-ROM troubleshooting and maintenance

    So I'm asking this more as a maintenance type of question thread vs 'I have an emergency' kind of help query, but figured I'd try to get some answers as to why I've been having similar symptoms across a number of optical drive, and why they keep crapping out in the same ways. My drives are...
  11. jessenator

    Determining the causes of seemingly random freezes

    I'm wondering if there's a way to get a more precise level of information on random system/mouse freezes that don't coincide with a bomb/error message. I saw one of Netfreak's videos where they did that for Copland, using a Powerbook as the dump location for whatever would happen on the...
  12. jessenator

    Transplanting 9-inch CRTs - A Journey

    I've acquired a couple of 9" monochrome CRTs with the intention of transplanting. I've seen it done, but wanted to go through the steps all myself. I'm starting with a used green-phosphor Matsushita CRT that came out of a CNC machine. A little burn-in, but I've got it, so might as well pop...
  13. jessenator

    Compact Desktop Power Supply Capacitor Lists (by make and model)

    In an effort to keep this all together, and start with a much more organized topic, here it is:  Compact Desktop Power Supply Capacitor Lists (by make and model) The models tagged, the IIci, IIcx, IIvi, IIvx, Performa 600, Quadra/Centris 650 and Quadra 700 all use the same form-factor PSU...
  14. jessenator

    Quadra 700 | GE Power capacitor list | 9T89Y5005G11

    Apologies, but I searched and didn't see this capacitor list anywhere. Does anyone have it from their own re-cap they'd be willing to share?  If not, I could possibly tear mine down to see what there is. I know for sure the two 470uF 200V caps are a bit bulgy on mine, and figured I'd do the...
  15. jessenator

    Quadra 700 vertical feet

    I hope I'm not stepping on any toes, but I noticed there was no openly-available STL model for the Quadra 700 feet, so I made my own based on reference photos, case measurements, and original foot measurements and comparisons. See the Thingiverse description for more details and thoughts...
  16. jessenator

    4400/7220/Tanzania Clone VRAM

    So from what I've gathered, the ubiquitous 2 MB (slow) EDO VRAM DIMM is so slow that going beyond the 2 MB is pointless. The upgrade was a 4 MB SGRAM DIMM, which I have yet to find in the wild—probably long-gone. The repair manual mentions other values as well, for both configurations, of 1-4...
  17. jessenator

    30-pin SIMM RAM identification and testing help

    Greetings.  I came into possession of a lot of 30-pin SIMMs, most of which are from PCs of the era. There are a handful whose stamped part numbers I was unable to ID via the google, and wondered if anyone could help decipher them. Incidentally, is there a market for 256 KB and 512 KB...
  18. jessenator

    Newer Optical Drive Compatibility

    Relative to my "discovery" last night I wanted to break this out into its own thread. Here's my setup: I'm using a PCI PowerMac (well it's a clone, but let's simplify), with a flashed SIL3112 SATA controller currently running System 7.6.1 Tl;DR Scenario 1) connected BluRay optical drive 100%...
  19. jessenator

    Power Computing mini tower SCSI ribbon / drive config

    So I recently got a PowerTower (non-pro) and was wondering if anyone had a more detailed image of their MT's innards, specifically the SCSI ribbon and their drive config. Mine didn't have a HDD in it, but the SCSI ribbon was just connected to the CD-ROM. In adding a SCSI drive in, the ribbon...
  20. jessenator

    PowerWave weirdness | picky about video card

    So when I first acquired my PowerWave, it had some posting issues which were due to RAM, which were resolved quickly and the machine ran well. However, after decided to upgrade from the "fine" Mach64 with a Rage128 I had sitting around, things got weird: get a chime and then the screen gets a...
Top