Re: i486DX2-66 only showing at 50Mhz. Benching poorly. Please help!

Posted on 2017-03-31, 19:01

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm also interested now since I have the same crystal and get average as a dx2 33 with my dx4 75. But would it help with the speed issue? Erik765 Do you have a built in CPU as me?

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Re: i486DX2-66 only showing at 50Mhz. Benching poorly. Please help!

Posted on 2017-03-31, 13:01

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You may only go x2 or x3 of your built in CPU, so dx2 50 or dx4 75 overdrive. Regarding speed I have same problem with my tulip computer ;) I added dx4 75 but it's fast as 33 hehe Ref intel The 50 MHz IntelDX2 OverDrive processor is de- signed to upgrade 25 MHz Intel486 DX microproces- sor-based …

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TAG CHIP

Posted on 2017-03-30, 08:02

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Motherboard: http://th99.classic-computing.de/src/m/S-T/31924.htm So i got some help with cache chips for my computer, and decided of : WINBOND W24M257AK-15 But o saw my tag has diffrent specs, question is tag sram och cmos chip? im unsure but would this work as TAG?: http://www.ebay.com.sg/itm/2x- …

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-03-27, 11:22

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm also interested in two if possible 😀

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Re: Bought these (retro) hardware today

Posted on 2017-03-27, 11:16

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got my self some soundblasters.

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Re: Problem with ct1600?

Posted on 2017-03-24, 18:32

by

by tabm0de

in Marvin \ Sound

in Marvin \ Sound

Thanka for all the comments, got it working fine after some IPA scrubbing:)

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Re: Bought these (retro) hardware today

Posted on 2017-03-23, 10:03

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Forgot that i bought these cards, not really sure at the moment what to use them for but who know when they are needed 😀

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Re: 1998 Dream PC / Time Machine with P II 450, Voodoo 2 SLI, 120 GB SSD, BitFenix Aurora, RGB lighting

Posted on 2017-03-22, 16:13

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

Sadly it's seems my need driver, if I boot up win98 from another disk it ask for drivers 🙁

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Re: 1998 Dream PC / Time Machine with P II 450, Voodoo 2 SLI, 120 GB SSD, BitFenix Aurora, RGB lighting

Posted on 2017-03-22, 15:05

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

Question phil! What card is the PROMISE? is it a PROMISE sata 300 tx2 plus?

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Re: [UPDATE 1] The journey of Tulip Vision Line DC 486sx TC35

Posted on 2017-03-22, 07:29

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

@Calvero I got a gotek working following a atari post regarding gotek. http://www.tonmann.com/2014/08/gotek-floppy-e … e-the-atari-st/ "The Atari (in contrast to a PC) expects the first drive to be ID0." <- so tulip would need to see the drive as ID0

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Re: The journey of Tulip Vision Line DC 486sx TC35

Posted on 2017-03-21, 13:55

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

I've got the same computer. Could you tell me if the floppy drive is anything special? I think when I got this computer I removed the floppy drive and its cable. Then some time later, I wanted to use this machine so I grabbed a random floppy drive and a random cable, but it didn't work. I ended up …

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Re: Overdrive odp speed question (slow) :/

Posted on 2017-03-20, 16:52

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im waiting for a dx2 50 overdrive, i read it could be that the port only support 5v? and not 3.3?

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Re: Overdrive odp speed question (slow) :/

Posted on 2017-03-20, 12:43

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I dont know but this could be the problem??? The built in cpu is 25mhz and the system bus is at 10mhz? and can be changed to 8.33mhz only?

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Re: [UPDATE 1] The journey of Tulip Vision Line DC 486sx TC35

Posted on 2017-03-18, 11:26

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

here is a ss from cachechk

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Re: Overdrive odp speed question (slow) :/

Posted on 2017-03-18, 11:25

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is ss from cachechk

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Re: Overdrive odp speed question (slow) :/

Posted on 2017-03-17, 23:41

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

True, i didnt really think about that, for some reason i had it in my head i did have 64kb but as you said i dont 😉

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Re: Overdrive odp speed question (slow) :/

Posted on 2017-03-17, 23:19

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well i do have cache but it aint big ( 64kb ) as can been seen on http://th99.classic-computing.de/src/m/S-T/31924.htm, i dont know that much about cache and how much is recommended.

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Re: [UPDATE 1] The journey of Tulip Vision Line DC 486sx TC35

Posted on 2017-03-17, 22:15

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

Thanks guy i will report back with CACHECHK and speedsys tomorrow!

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Overdrive odp speed question (slow) :/

Posted on 2017-03-17, 19:10

by

by tabm0de

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So i Have a computer with built in 486 Sx 25mhz, which I could add a overdrive odp, but my question is that I did add a dx4 75mhz and benchmark shows like x2 better speed, is this because of 25mhx bus? This is the system and info: [UPDATE 4 / DONE] The journey of Tulip Vision Line DC 486sx TC35

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Re: The journey of Tulip Vision Line DC 486sx TC35

Posted on 2017-03-17, 15:32

by

by tabm0de

in Marvin \ System Specs

in Marvin \ System Specs

I guess soldering jumper pins to J17 can get your motherboard to 33MHz FSB, but that's maybe taking it too far for you? "Factory configured - do not alter" :P Edit: wrong motherboard... :P Edit 2: This one look more like your board. Looks like your board don't have any pins on J14 to enable 80486DX …

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