I just remembered there is also this GUS repro project https://www.vogons.org/viewtopic.php?f=62&t=42431 and I think they managed to shit ship correct crystals because they ordered custom from manufacturer with min 1000qty Y1 is fed 5.5V DC (from ground) from GF1 pin and accept oscillations on …

https://www.vogons.org/viewtopic.php?f=62&t=62786 I dont think anyone found reliable source, you might have to replace it with modern PLL clock gen like Silicon Lab Si5351A + small micro to program frequency on every powerup. Thank you. Tomorrow I hope I will get a handful of nearby freq crystals …

Got Gravis Ultrasound MAX 2.1 (serial 0495) which apparently requires care: setup hangs on interrupt test, impulse tracker it.exe /s7 just hangs in three different mobos/cpus/DOS'es/cards etc. Quick inspection shows that following three crystals (by oscilloscope): Y1 is 19.7568 MHz (Ecliptek ECX- …

Hi there, I'm trying to build null modem mt32emu system with the scheme follows: EP-7KXA DOS 6.22 softmpu com1 -> null modem cable -> com1 (shuttle ds61 win10) -> hairless MIDI -> MUNT I can't get things working, so the question is: 1. In SoftMPU code COM port init 38400 8n1 (what flow control ? …

How many runs to say the memory is good? (at 100 MHz at least) One pass for all tests, then test #8 (random numbers) in loop for 24 hrs at least - this will put pressure on CPU, mem controller and RAM. I have 775i65g setup e5800 overclocked high (3.78GHz, ddr1 400 @470 3-3-3-8 ) which gives me an …

Industrial time! FS-97A CPU Board & PCI-7S base board (2xPICMG 1.0 ISA+PCI, 4 PCI, 2ISA slots) Socket 479 Celeron/Pentium M board (with overclocking on industrial mobo!) Love those bright red voltage indicators :) Another milestone completed - PentiumM for desktop with fully working ISA via ICH4/ITE …

Very cool! Slot A is def on my list of platforms to check out eventually. I need to get into recapping. Does anyone know if there's a newbs guide to figuring out what caps I need and the best way to get them? And what's the prevailing wisdom in terms of replacing all caps vs just visibly bad ones …

Wash/recap dead Epox EP-7KXA w/Athlon 650 Pluto Slot A (~$15 flea market) ovreclock (115x6.5 - max available) mem @153 sdram memtest 12hrs test 8 (random numbers) - ok another milestone (SlotA combo) - done upd: 17 of 18 2200mkF capacitors was ok by multimeter (even leaky ones), but not for ESR …

Wash/recap dead Epox EP-7KXA w/Athlon 650 Pluto Slot A (~$15 flea market) ovreclock (115x6.5 - max available) mem @153 sdram memtest 12hrs test 8 (random numbers) - ok another milestone (SlotA combo) - done upd: 17 of 18 2200mkF capacitors was ok by multimeter (even leaky ones), but not for ESR …

Cool CPU to have just for the curiosity factor, other than that likely not worth using in a rig as its better as a display piece due to the rarity of actually finding one int he wild. Most got trashed by Intel with their return program. I was wrong for almost 30 years, considering only 60/66 …

SX923 Pentium 90 (100 with no effort) with pentbug16 confirmed FDIV bug and two 233MMX'es with unlocked (?) multiplier.

Quantum Fireball ST 1.6Gb reanimation (surprise inside garage sale Siemens Scenic Pro C5) - start, spinup, can't get enough RPM, stop, restart, three times, shudown. Then heat them up with heat gun: RPM still floating, but detection in BIOS, attempt to boot, shutdown. One more time heat gun, several …

Hello, eyeballing this thread for a while. Just curious about Z170 chipset motherboards, coz they tend to have LDRQ in their specs sometimes: Supermicros (MBD-C7Z170-OCE for example) with LDRQ# on pin 20 of the JTPM header Shuttle SZ170R8 also has LPC header PIN 14=LDRQ0 Not sure Supermicro and …