Re: Recapping motherboards - no non-low-ESR caps existing (anymore?)

Posted on 2023-03-11, 20:36

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On these old mainboards, without step-down regulators, you can use "general purpose" electrolytics, or low-esr types. It doesn´t matter, because they are just local buffers compensating transients etc. What was the test frequency when you measured 0.5 ohm ESR? I doubt they have low ESR like that. …

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Recapping motherboards - no non-low-ESR caps existing (anymore?)

Posted on 2023-03-11, 20:15

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi I've been desoldering all the caps from a GA-586HX2 and an Asus P/I-P55T2P4 and they are all around 6.3V or 10V, 330uF or 1000uF and they all measure around 0.5 Ohms ESR according to my cheap Chinesium "Multi-function Tester - TC1". Some of the Asus's caps give very strange readings (either 5 …

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Re: Randomly freezing Socket 7 System (K6 233, GA-586HX)

Posted on 2023-02-20, 07:57

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I believe the 72 pin simms are 32-bit. The bus is 64-bit. Or am I having a senior moment? Dimms were dual (64) inline memmory modules, simms were single (32) inline memory modules. Dimms, sdram was 64-bit and you could do a single sick. Late 486 could do single simm and was 32 bit bus. 30 pin simms …

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Re: Randomly freezing Socket 7 System (K6 233, GA-586HX)

Posted on 2023-02-20, 00:11

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Random hangs are so annoying! I'd trim the machine back to bare bones and see if that helps, i.e. take the sound card out, 1 RAM stick out, network card out, and unplug the CD-ROM and zip drive. I've already "kind of" done that, by swapping out and leaving out many components, like the VGA card ( …

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Randomly freezing Socket 7 System (K6 233, GA-586HX)

Posted on 2023-02-19, 19:36

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi so I have put together a PC with the following parts: GA-586HX (Rev 2.x with the switching regulator) K6 233 2x 32 MB EDO RAM 60ns Samsung 40GB IDE limited to 32GB via jumper Vibra 16C ISA card Voodoo 3 2000 PCI 3Com 3C905C-TX-M PCI NIC Enhance 200W AT PSU 100MB ATAPI ZIP Drive CD ROM drive 52x …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-18, 13:57

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

Just for completeness, that's the ctpnp.cfg after I've made the configuration via CTCU. I didn't find a manual or reference anywhere to tell what's what, unfortunately. [SB16] Csn=1 LogDev=0 CardId=CTL009C Serial=154460F8 Port0=220 Port1=330 Port2=388 Irq0=5 Dma0=1 Dma1=5 [PNP] Readport=277 [AWE] …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-18, 06:42

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

ok thanks... no wait, I'm doing the following: - Reboot Windows into DOS mode (it does a complete reboot, not just starts DOS - i guess because of all the stuff in the config.sys) - CTCM does only detect/configure 2 out of 4 devices, CD not working - I run CTCU and configure stuff - Reboot PC via …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-18, 00:03

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

tried both, unfortunately still the same: as long as I do not run ctcu manually and configure everything, ctcm doesn't detect/configure all devices and CD refuses to work. so what i currently have to do, is to turn the pc on, start to dos mode, configure everything via ctcu, reset using ctrl-alt-del …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-17, 22:25

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

I don't think you need DIAGNOSE every boot, so you can probably remove it from AUTOEXEC.BAT. What happens if you manually run CTCM after booting (without running CTCU)? Maybe you need to run it from AUTOEXEC, even though you also load it as a device driver? One guess is that you run SET CTCM only …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-17, 22:01

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

Do you run CTCM/CTCU at boot? Could you post your startup files? I do only start CTCM, not CTCU at boot, or to be more specific, when booting into MS-DOS Mode (Win 95 installed). Because I'm also using the IDE port of the Creative card, I'm starting CTCM in the config.sys. Mainboard: Asus VL/I- …

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Re: Sound Blaster Settings Keep Changing

Posted on 2020-05-17, 17:42

by

by nemail

in Marvin \ Sound

in Marvin \ Sound

Hi I've got this issue as well. I configure everything through CTCU, then I start CTCM which initializes everything fine and all works until a power down of the system. My card is a CT3670. Any ideas why the system is losing its settings? Aren't they supposed to be written to ctpnp.cfg where CTCM …

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Re: compaq presario quick restore CDs

Posted on 2020-05-10, 18:51

by

by nemail

in Marvin \ Software

in Marvin \ Software

Thanks for the link! I have digged through archive.org already but wasn't able to find it. I should probably have said that I'm looking for the German version.

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Re: compaq presario quick restore CDs

Posted on 2020-05-05, 00:28

by

by nemail

in Marvin \ Software

in Marvin \ Software

occasional bump, just in case someone drops by who has the mentioned CDs... btw german iso would be preferred xD

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Re: Kind of laggy mouse in Windows 95

Posted on 2020-05-05, 00:27

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not all the MS Intellimouse PS/2 were fully serial compatible. Those that were actually stated "Serial or PS/2 Compatible" or "Serial - Mouse Port" on the bottom label though most of the v1.1 seem to work just fine with a serial adapter. I have a few MS that are truly serial+ps/2 compatible and …

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Kind of laggy mouse in Windows 95

Posted on 2020-05-04, 01:23

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I've just finished my "new" average-joe's 486 build, using the following components: - ASUS VL/I-486SV2GX4 - Intel 486 DX2 66 MHz - 16 MB FPM 72 Pin 80ns - Jaton VL41C/V2 (S3 805) 1MB, Vesa Local Bus (VLB) (OEM SPEA V7 Mirage) - AWE32 CT3670 /w 2x 1 MB 30 Pin SIMM - Promise PDC20230C based VLB …

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Re: Socket 7 build luxury problems

Posted on 2020-04-27, 10:06

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think everyone in this hobby is hoarder to some extent . I know I am . good point! I've got a full height 19" rack that I plan to use for my builds at some point. Problem is, like you, some of the ones that aren't industrial rack mount systems are desktops and they need to be finalized before I …

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Socket 7 build luxury problems

Posted on 2020-04-27, 00:37

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, just wanted to cry about my luxury problems here, no pity expected.. :) If you want pictures, let me know. Move to Milliways, if it doesn't fit here. OK, go: I've got way too many S7 builds, I guess that's because a P1 150 was my very first, absolutely new computer (Compaq Presario 4162) and I …

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compaq presario quick restore CDs

Posted on 2019-08-24, 20:05

by

by nemail

in Marvin \ Software

in Marvin \ Software

Hi I have recently (finally!) acquired two old compaq presarios https://www.ebay.at/itm/Vintage-Compaq-Presario-4170ES-Desktop-PC-Pentium-166MHz-2-GB-HD-WORKING/323892532709?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 https://www.ebay.at/itm/RARE-PC-Presario-8714-P1-200Mhz-256k-cache- …

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Re: Voodoo2 8 to 12MB RAM upgrade - is it really that straightforward?

Posted on 2019-08-02, 22:36

by

by nemail

in Marvin \ Video

in Marvin \ Video

hi, sorry for digging up this old thread but I have just managed to do that 8 MB to 12 MB upgrade on a CT6670 by myself. had a bad ATC Voodoo2 with 12 MB here and desoldered some of the memory chips to resolder it onto the working CT6670 -> boom, works. first I forgot to completely solder one of the …

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Re: Does Anyone have a Compaq Presario 4100 series?

Posted on 2019-04-25, 11:42

by

by nemail

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi same here, however I had the Presario 4162 which looked exactly the same but had a P1 150 MHz (no MMX) and 16 MB RAM. Where are you from? Lucky, you still have yours. I gave mine away years ago. nemail

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