Re: Help Request: Max CPU upgrade on Biostar M6TBA Ver. 1.4

Posted on 2025-04-13, 13:18

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well I think there is still a chance that the LX1664CD is able to go down to 1.3 volt because it supports 1.8 volt and that falls in the same category via VID4 = 0. There is a motherboard on Ebay under the title [ Vintage Merit System Mainboard Intel BX Pentium III M6TBA ] wich is a version 1.5 and …

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Re: Help Request: Max CPU upgrade on Biostar M6TBA Ver. 1.4

Posted on 2025-04-13, 07:56

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

IT seems that the pdf's on the web do not represent the earlier CD version - I am sorry for the confusion that I created. Here a description of the CD version: Microsemi Corporation LX1664CD.doc And there is one for sale on Ebay that also indicates only 1.8v > 3.5v: https://www.ebay.com/itm/ …

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Re: Help Request: Max CPU upgrade on Biostar M6TBA Ver. 1.4

Posted on 2025-04-12, 10:25

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Matt The Cat wrote on 2025-04-11, 12:03: I think I have seen this, but yeah. My motherboards voltage regulator is designed for 1.8 to 2.8 volts. LX1664CD According to the spec sheet of the LX1664 it supports the range from 1.3 volt to 3.5 volt. https://mm.digikey.com/Volume0/opasdata/d2200 … LX1664 …

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Re: Help Request: Max CPU upgrade on Biostar M6TBA Ver. 1.4

Posted on 2025-04-11, 13:18

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I have seen this, but yeah. My motherboards voltage regulator is designed for 1.8 to 2.8 volts. LX1664CD So I may, in a while, get a Celeron Coppermine 1100/128/100/1.75v (close enough to 1.8v shouldn't be a problem) But the 1.5 volts 1.4Ghz Tualatin might cause issue issues with my voltage …

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Re: Help Request: Max CPU upgrade on Biostar M6TBA Ver. 1.4

Posted on 2025-04-11, 08:13

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My biggest concern now is the voltage requirement. I ordered an Intel Tualatin Celeron 1.4GHz(256K) 100MHz FSB 1.5v with On-chip Socket Adapter for Coppermine sockets https://www.ebay.com/itm/281931957654 the seller lists the Biostar M6TBA as compatible with the right slotket. Should the MSI MS6905 …

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Re: Is it ok to use a Pentium III 800EB (133Mhz FSB x 6.0) like a regular Pentium III 800 (100Mhz FSB x 8.0) ?

Posted on 2025-04-09, 07:44

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

An 1100MHz, 128K L2 cache Celeron at (100MHz FSB) with a Coppermine core should work as well. https://www.cpu-world.com/CPUs/Celeron/Intel-Celeron%201100%20-%20RB80526RY005128%20(BX80526F1100128).html with one of the common FC-PGA (Coppermine) capable slotkets. Whether that would usually be faster …

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Re: MHz Display / Turbo LED

Posted on 2025-04-08, 10:11

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Aui wrote on 2025-04-08, 09:38: (I got the Case from the dump - so I dont know for sure if this was ever working correctly (ias mentioned before it sows a dash - inicating some activity). Lighting the segments is controlled via the jumpers. The jumpers for each digit are lined up in two possible …

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Re: Socket 370 to 478 (and vice versa) unicorn adapters

Posted on 2025-04-04, 08:06

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I was reading this article here, about the Tualatin Pentium III: http://brassicgamer.blogspot.com/2020/10/the-almost-definitive-piii-tualatin.html?m=1 And I read in there, basically,that adapters exist, for adapting Tualatins to socket 378. Now, 99% sure that’s just a typo of 478, but I was …

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Re: What Are Your Favorite Motherboards?

Posted on 2025-03-30, 09:29

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Funny enough, last night I tore through my house looking for a small box I know I have that has about a dozen processors in it, most are socket 7. I was looking for a Pentium to mess around with in my DOS build. Sadly, I have no idea what I did with that little box of parts, but I did find my old …

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Re: 370 to Slot1 adapter with jumper, how to set

Posted on 2025-03-26, 11:15

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks. Have fun with the mod.

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Re: Tualatin adapter

Posted on 2025-03-25, 11:58

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here are the pics of the slotket and the voltage regulator. as mentioned above, slotket does not look like Coppermine Ready. byte_76 wrote earlier: [[The slotket supports Coppermine and I have an 850MHz in there clocked at 1130Mhz with 133FSB.]] When I wrote 'unhealthy' I was thinking about the …

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Re: Tualatin adapter

Posted on 2025-03-25, 11:28

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe the voltage reporting of the Gigabyte board is off ?

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Re: Tualatin adapter

Posted on 2025-03-25, 10:54

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That may mean that the korean adapter is modded to signal for 1.55volt. My suggestion is to follow riplin's earlier suggestion and set the slotket to AUTO and set the P3BF to JUMPERLESS via the JEN jumper. If that does not work then there may be something unhealty going on with the slotket or with …

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Re: Tualatin adapter

Posted on 2025-03-25, 08:52

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

byte_76 wrote on 2025-03-25, 06:21: Maybe I made a mistake with the soldering of the adapter. You wrote earlier: [[I soldered the adapter to my processor and tested it in my non-Tualatin Gigabyte socket 370 board. The processor seems to work fine. ]]

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Re: Tualatin adapter

Posted on 2025-03-24, 16:53

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

byte_76 wrote on 2025-03-24, 16:25: The slotket supports Coppermine and I have an 850MHz in there clocked at 1130Mhz with 133FSB. That sounds promising. You could try to set the FSB jumpers on the slotket to AUTO and maybe increase the voltage on the motherboard a bit.

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Re: Tualatin adapter

Posted on 2025-03-24, 11:53

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Asus P3B-F ver 1.4 supports 1.3v and up.

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Re: Tualatin adapter

Posted on 2025-03-24, 10:14

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Next I tested the processor in my Asus P3B-F ver 1.4 but I found that it POSTS and then a few seconds later the display turns off and the LED on the display turns orange. (Ie. no signal) I just have a generic S370 slotket. Could that be the cause of the issue? I’ve set the multipler to 6.5 and the …

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Re: Help taking apart slot a card.

Posted on 2025-03-22, 14:37

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It s a bit involved but with a lock ring plier it is doable. Filename tool.JPG File size 35.06 KiB Views 64 views File license Public domain

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Re: Help taking apart slot a card.

Posted on 2025-03-22, 14:05

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here you can get a taste: Re: Hello, World! :D - Robert B's PC builds - oogle away freely :)

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Re: What retro activity did you get up to today?

Posted on 2025-03-14, 12:59

by

by PARKE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Aui wrote on 2025-03-14, 08:19: Thinking a bit more abou this, why was WP51 so user unfriendly (and yet so popular ?) It was popular because it was basically freeware. Anybody who had bought the program was free to share it with the rest of the world.

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