Re: 486DLC/TI486SXL sandwich board for cache coherency
Posted on 2021-09-13, 17:49
BitWrangler wrote on 2021-09-13, 16:33: Interposer is probably the term that would get more recognition. Thanks , I updated my post accordingly.
486DLC/TI486SXL interposer board for cache coherency
Posted on 2021-09-13, 15:10
I picked up a TI486SXL/40 CPU and it came with an interposer board. I suspected it was for cache coherency. I did not use the board, because motherboard I used already had support for a TI486SXL/40. I just did a build with a CH-386-33A/40A motherboard with an Opti 82C391B chipset and 128KB cache. I …
Re: RTC not updating date & time when computer is turned off
Posted on 2021-09-12, 00:06
I did a little more research and there are LIR 2032/H batteries that are 3.6/3.7 volt. They are also rechargeable. I wonder if that could be a workable solutions as well? Only use NiCD batteries! But this only viable if you use (and thus recharge the battery) the computer at least a few hours daily …
Re: RTC not updating date & time when computer is turned off
Posted on 2021-09-11, 23:21
Seems the 32,768Hz oscillator needs more than 3V to run. Have seen this quite often. These boards with the barrel battery were supposed to be regularly turned on, charging the battery. And the NiCd characteristics is that the voltage only drops sharply when near to empty. So, back then there was no …
Re: RTC not updating date & time when computer is turned off
Posted on 2021-09-11, 22:20
If it had mTCPs NTP application running from the autoexec.bat file on start up I wouldn't worry about it. I added MTCP to my AUTOEXEC as suggested and it works just fine. I load the 3C5X9PD packet driver, set the time and then unload the packet driver from memory. This turns out to be a quick and …
Re: RTC not updating date & time when computer is turned off
Posted on 2021-09-11, 17:03
I would try the external 4.5v first, that would rule out a board issue if it works. A rare few old boards had a 4.5v rechargeable not the 3.7v. Trying the 4.5v external will help find out as those boards needed 6v external (more diodes from the external pins to actual cmos battery traces). A 3.6v …
Re: RTC not updating date & time when computer is turned off
Posted on 2021-09-11, 16:38
What voltage was the old Varta ? Many of the old 286, 386 used a 4.5v external if the 3.7v Varta was removed. The CR2032 may not be supplying enough voltage..... The CR2032 was already installed when I got the board, so I don't know the previous voltage. My next best option is to rig up an external …
RTC not updating date & time when computer is turned off
Posted on 2021-09-11, 16:27
I just got a Chicony 386/40 CH-386-33A/40A motherboard for a new system build. The motherboard was upgraded with CR2032 coin cell battery holder. The CMOS settings are retained, but when powered off the computer the date and time will not update. I replaced the CR2032 with a known working battery. I …
Re: Samsung SC-148F 48x CDROM firmware update
Posted on 2021-09-06, 03:48
I tried a little bit different searching method and found it on kbench.com. Weird that I used sc-148f_ps07 and finally found it. https://kbench.com/software/?q=node/1240
Samsung SC-148F 48x CDROM firmware update
Posted on 2021-09-06, 00:49
I am looking for the PS07 version of the firmware, but I have been unable to locate a download link. I had no luck using archive.org. The file name is SC-148F_PS07.zip. Any help locating this would be appreciated. Thanks!
Re: TI486SXL-40 PGA168 motherboard compatibilty
Posted on 2021-09-03, 01:33
debs3759 wrote on 2021-09-02, 20:53: A number of us have been trying to find a board to run the SXL processors. Good luck trying to figure it out. This motherboard appears to support it in any regard: https://stason.org/TULARC/pc/motherboards/M/M … 486-LX30WB.html
TI486SXL-40 PGA168 motherboard compatibilty
Posted on 2021-09-02, 03:07
I have this CPU and both a LS-486E Rev C1 and Rev F motherboards. Will this CPU work with either of these motherboards? If so, what CPU type should the board be set for?
MoSYS MDRAM chips to upgrade an ET6000 for sale
Posted on 2021-08-12, 02:01
I found this listing on eBay for MoSYS MDRAM chips. I am picking up 2 for one my ET6000 cards to upgrade it to 4MB. At $7.80 each that is a pretty decent price. Just thought I would pass this along. https://www.ebay.com/itm/372426829536
Re: Atx form cards
Posted on 2021-08-05, 02:34
I found this online at CablesOnline for only $7.99. I ordered one and will see if it works. http://www.cablesonline.com/usbatxforcar.html I just tried the one I purchased from CablesOnline.com and it works. Nice to know there is an $8 solution for those who need one. I also tested one in my Asus …
Re: AMD K5 - enable write allocate
Posted on 2021-08-05, 02:01
I did a quick translate of the text files for the K5.sys driver from Japanese to English using Google translate. Here is the complete file set with those translated text files.
Re: Atx form cards
Posted on 2021-07-30, 23:45
jasa1063 wrote on 2021-07-28, 02:55: I found this online at CablesOnline for only $7.99. I ordered one and will see if it works. http://www.cablesonline.com/usbatxforcar.html I just tried the one I purchased from CablesOnline.com and it works. Nice to know there is an $8 solution for those who need …
Re: 386/486 boards? Motherboards with a socket for both a 386 and 486...
Posted on 2021-07-29, 02:11
Hey gang, What's the feels about 386/486 combo boards when you use them for 386es? Is it like "well done dumbass, you just crippled a 486" or like "Yeah but it's not really a 386." or "What's even the point when it takes a 486?" I has me one, a 486LC1, contaq chipset, I has me many other 486 boards …
Re: Atx form cards
Posted on 2021-07-28, 02:55
I found this online at CablesOnline for only $7.99. I ordered one and will see if it works. http://www.cablesonline.com/usbatxforcar.html
Re: Atx form cards
Posted on 2021-07-28, 01:13
I just picked up a PC Chips ATX form card for my Asus TXP4 motherboard, but it did not have the original 18-pin flat ribbon cable. I was able to find one Amazon and it works just fine. Just wanted to pass this along in case anyone else was in the same situation. https://www.amazon.com/uxcell- …
Re: Intel Demo and Diagnostic diskette for Pentium II Overdrive
Posted on 2021-07-21, 01:01
I am looking for the the Intel Demo and Diagnostic diskette for the Pentium II Overdrive CPU. I haven't been able to find it online. Any help with this would be appreciated. These are listed on the Intel archive against the PII OD (and downloadable from the last link below) Manual - https://web. …
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