Rambus RDRAM: Active Cooling for higher capacities?

Posted on 2024-04-19, 21:31

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a GX400 that I've been working on maxing out for a while. I have a few final touches, but one of the things I bought for it a decade ago when I first got it was 2GB of HP badged PC800 ECC RDRAM, as that's all I could find in quantity at the time. I knew what I was getting myself into, but …

---

Re: Cedar Mill in early 775 motherboards

Posted on 2024-03-22, 11:08

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BitWrangler wrote on 2024-03-22, 03:44: Did some of the Xeon codes overlap the Extreme Editions? They might have but I don't think this applies to this, the only extremes that can work on that machine are the Prescott ones and those are a separate cpuid I believe.

---

Re: Cedar Mill in early 775 motherboards

Posted on 2024-03-22, 03:08

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a ThinkCentre A51 USFF coming tomorrow, model 8107-71G. This is an early-ish 775 machine with a 915G chipset onboard, but it's also a transitional model, Lenovo taking over most of the IBM stuff past this point. Somewhere in 2005 there was a microcode update added to a previous BIOS release ( …

---

Re: HP 240MB HDD Failure

Posted on 2024-02-01, 00:08

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is a pic of the board. https://i.imgur.com/ePD18IA.png Yep, looks fine to me, so I think what definitely happened is your rubber bump stop is preventing the drive from seeking. https://guide-images.cdn.ifixit.com/igi/mtEe4lXjOUuVC5WJ.full This is the rubber bumpstop in question next to the …

---

Re: HELP! Oak Mozart BTC-1820 missing all Capacitors! need list!

Posted on 2024-01-26, 16:31

by

by Sudos

in Marvin \ Sound

in Marvin \ Sound

Thank you all a bunch for the help-- I did find some images of my specific card off an eBay seller with a good chunk of images of the caps I was most concerned about but this definitely helps even more. Need to figure out where I misplaced the card in the last nearly two weeks... And then I can …

---

Re: HP 240MB HDD Failure

Posted on 2024-01-26, 15:41

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wouldn't bother trying to resurrect the drive, assume it has failed. Prodrives are notorious for having rubber head bumpstops. It's likely it hit it and got stuck. Goopy mess, can be replaced with some heat shrink if you're quick about it and the platters didn't get any on them however. its still …

---

Re: HP 240MB HDD Failure

Posted on 2024-01-25, 23:22

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wouldn't bother trying to resurrect the drive, assume it has failed. Prodrives are notorious for having rubber head bumpstops. It's likely it hit it and got stuck. Goopy mess, can be replaced with some heat shrink if you're quick about it and the platters didn't get any on them however.

---

HELP! Oak Mozart BTC-1820 missing all Capacitors! need list!

Posted on 2024-01-15, 14:20

by

by Sudos

in Marvin \ Sound

in Marvin \ Sound

I have a BTC-1820 Oak Mozart card here that I must have forgotten I reclaimed the capacitors on for some ungodly reason, and I need a list of all the values. I can make some educated guesses such as C69/75/84 all needing to be 16v 10uF due to placement but I'm clueless for most of the rest. Also …

---

Re: Intel Or840 ps2 not registering

Posted on 2024-01-11, 11:00

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes thankfully. Only problem now is that It is still not running anything through my cd or floppy drives. Would it run with a USB keyboard? I'm running BX boards with that ... I had a similar issue a while back with my one 386... I'd go and replace your IDE/floppy cables if I were you. I have a …

---

Re: Clock generators on Socket 7 and older motherboards

Posted on 2024-01-11, 08:04

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hopefully I'm not bringing this too far out of the grave... I have a Socket 1 SBC here from Teknor, a VIPer809 with a Cirrus 7548 VGA chipset. PLL is a Cypress CY2291F . Datasheet and manuals attached. I've figured out that pins 14/15/17 are S0/S1/S2 respectively and coincide with header W24 pins …

---

Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2024-01-07, 07:59

by

by Sudos

in Marvin \ System Specs

in Marvin \ System Specs

@Sudos If you're using daemon tools to mount an ISO image, it's a known issue that CD audio won't work in DOS games. Unless you use WDM drivers, then CD audio will work. Using WDM drivers entirely defeats the purpose of using an ISA sound card though, as all WDM drivers use a crappy sbemul.sys file …

---

Re: Diamond Speedstar24 Bios versions

Posted on 2023-11-18, 00:52

by

by Sudos

in Marvin \ Video

in Marvin \ Video

I got the RAMDAC off that weitek card, cleaned up the pins and dropped it in. no BIOS change, just dropped it in. now I can do 32768 colors! I've found the Samsung DAC runs a bit warmer than the Music DAC... probably because it can do more at likely the same node process. Might adhere a heatsink to …

---

Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2023-11-16, 04:27

by

by Sudos

in Marvin \ System Specs

in Marvin \ System Specs

I'm having an interesting problem I'm wondering if is also a problem on the weeCee as well - Assuming a stock system without a wavetable card installed, try booting up the talkie version of Beneath A Steel Sky... assuming you have a way to mount an ISO under DOS. I've noticed the CS4237B won't do …

---

Re: Diamond Speedstar24 Bios versions

Posted on 2023-11-14, 22:23

by

by Sudos

in Marvin \ Video

in Marvin \ Video

Do you have the drivers for this card? All three existing Windows 3.1 drivers for the Weitek 5x86 that can be found on the net ( two on Weitek's site and the third on Metropoli ) seem to only support the 5086 and 5186 with 256-colour modes while having garbage output with the 5286, but 15-bit …

---

Re: Diamond Speedstar24 Bios versions

Posted on 2023-11-10, 22:41

by

by Sudos

in Marvin \ Video

in Marvin \ Video

This is what I'm using: Ah! That makes all the sense then that it'd be in there. I was under the impression that there was an older set of drivers for this card. For all I know, there still is. I'm still puzzled about the text corruption. no amount of cleaning any of the pins changed the behavior, …

---

Re: Diamond Speedstar24 Bios versions

Posted on 2023-11-09, 20:26

by

by Sudos

in Marvin \ Video

in Marvin \ Video

X-ROM a.k.a. Translation ROM Allows to use register-level CGA and Hercules modes with regular VGA monitors, ie. 31 kHz HSYNC. Ah okay, that makes total sense then. Wow! I also have this same card and I was also looking for best bios for it. I'd be very interested in knowing how it went for you. …

---

Re: Diamond Speedstar24 Bios versions

Posted on 2023-11-09, 13:31

by

by Sudos

in Marvin \ Video

in Marvin \ Video

Don't mean to raise this from the dead too much, but I have this specific ET4000AX Speedstar card. Acquired it a few weeks ago at the recent VCFed swapmeet in NJ, sitting in a 386DX build that was pretty worse for wear, however this was the crown jewel that made me go for it. There doesn't seem to …

---

Re: Yamaha YMF71x SB Pro Mixer Bug Issue Fix

Posted on 2023-07-27, 06:35

by

by Sudos

in Marvin \ Sound

in Marvin \ Sound

Changing those capacitors will only affect sound of the SB DAC output, so WSS output remains untouched by the mod. Alright, thanks for the clarification. it's been running in the poweredge for a while now and it really is a miracle it works as well as it does in XP. I really wanted to see this used …

---

Re: Yamaha YMF71x SB Pro Mixer Bug Issue Fix

Posted on 2023-07-24, 03:27

by

by Sudos

in Marvin \ Sound

in Marvin \ Sound

Came to put my $0.02 into this thread. I got one of these a long long time ago from a scrap pile, was digging through my basement earlier in the week and happened upon it in a box. Rather, I happened upon it months ago, but really only got around to messing with it this past week. Image below is …

---

Re: XTIDE ROM - 3COM 3C509B-C - W27E512-70

Posted on 2023-07-01, 06:08

by

by Sudos

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Short version: I got my XT-IDE BIOS working in a 27256 filled with 2x16k images, installed in a 3C509 B . Long version: OK, here's what I've learned so far. I have a 3C509B-Combo - the important thing here is that I have a 3C509B not an older 3C509. I have an old Atmel 27C256R (120ns) EPROM - 32Kx8 …

---