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Re: Turbochip amd 133mzh cpu fan upgrade

Posted on 2018-08-19, 23:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ok, so I was trying to take the cpu out carefully of the converter only 1 side was budging slowly because I was using a plastic pryer tool and not much to push off from the converter. Then the fan popped off and I saw this https://preview.ibb.co/kps6oK/IMG_20180820_083453.jpg A actual AMD 5x86 chip! …

Re: Turbochip amd 133mzh cpu fan upgrade

Posted on 2018-08-19, 12:23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

do you think it would work if I took off the turbochip off the converter and put a amd 5x85 133 in the converter?

Turbochip amd 133mzh cpu fan upgrade

Posted on 2018-08-19, 09:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had a thread about a 486 board in which I ended up using a turbochip amd 133mhz upgrade which is a cpu + 3V / 5V converter + fan in 1 package. I am waiting for a 40mhz crystal to try overclock it to 160mhz. however this package seems to have a pretty much non-existent heatsink and a little fan …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-08-10, 14:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

here is a pic of the amd if you are curious. (there is 1pin only and its sx/dx currently on dx mode) also I added another 16 meg 30 pin ram now giving me a total of 32mb ram and suddenly my overall speed score doubled! however since we determined that particular app is not accurate I am not fully …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-08-04, 13:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You are correct, I just ran 2 other benchmark tests which showed correct specs

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-08-04, 11:40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The only pins on the turbochip is a dx/sx setting, I was curious about this and downloaded the pdf instruction and weird nothing about the sx/dx pins. But about 4 pages on how to safely remove the old cpu. I set the pin on DX, however now im thiking Maybye try SX. But 116 is a weird number if it was …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-08-04, 03:10

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok the crystal that fitzpatr linked came, I fitted it and running at 99mhz so mission success. In the meantime I also localized a Kingston turbo chip 586 133 which is a 586 in a 3v to 5v convertor. Which is supposed to run 4 x 33. So Kingston went in next but looks like 116mhz is the fastest this …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-23, 03:40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great thank you for the explanation and solution for me! I will order the part you linked, 80mhz is also tempting which would give me 3x40 =120mhz, something to think about in the future for now I will first get it going at 100mhz Will take a week or 2 since im in Australia but Ill make a update …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-23, 02:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, thanks for the more details. So on my board I have a jumper setting for 50mhz or 33/25 So then best to get a 66mhz crystal and set the jumper in the 33/25 position? Can I use this one? https://au.rs-online.com/mobile/p/crystal-osc … lators/4785941/

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-23, 00:04

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you mean bus the fsb the cpu runs it came initially with 50mhz and a 486dx50 cpu which I believe runs at 1x50mhz but I changed the pin and now its running at half fsb 25 so 3x25 but for my dx I want the 3x33=100 However this also gets me thiking what about the isa and ram? If I get a 66mhz …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-22, 22:23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is the first time im learning about crystals so it's all new to me, but if there is a 33mhz one I think that makes more sense to me too since I will never need or want to use 66mhz, unless there is more to it. The only overclocking I did was on Slot1 and socket 370 in the past which were all …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-22, 14:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok great thanks for explaining it to me, I will look around for a 66mhz crystal Here is some screens of cache info, sorry not the best quality pic https://preview.ibb.co/fzQmUJ/IMG_20180723_004629.jpg https://preview.ibb.co/jP4PGy/IMG_20180723_004142.jpg Yes I will definitely keep it at half rate …

Re: Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-22, 14:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found out its indeed running at 25 fsb. I don't know about the fsb crystals. Does that mean I have a 50 crystal so it runs at 50 or 25? So if I want 33 fsb what crystal would I need? This is from the manual CPU SPEED CONFIGURATION Type JP12 20MHz pins 2 & 3 closed 25MHz pins 2 & 3 closed 33MHz …

Intel overdrive dx4 100 running at only 75mhz

Posted on 2018-07-22, 12:15

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So recently I pulled out a old 486 isa board CHICONY, INC. CH-486-33/50 L with a dx50 chip running 50fsb stock After identifying the board I decided to drop a dx4odpr100 in there and set the fsb down to 33. On startup system shows as 66mhz but in benchmark utilities (tried 2) shows as a dx or dx4 75 …

Re: Help identify this 486 opti motherboard

Posted on 2018-07-22, 07:28

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I found a pin out, the soldered pin is ahold, I ran dukenukem 3d and doom for a bit the system didn't crash or freeze so guess its working fine, doubt it has anything to do with being detected as 75mhz, I saw a post on here from a guy that upgraded to a dx4 75 over driver and his test score was …

Re: Help identify this 486 opti motherboard

Posted on 2018-07-22, 00:09

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I put in the dx40dpr100 in, the situation is also a little clouded because cpu came with bent pins from ebay, when fixing one pin snapped but its a outside pin and I soldered it, last pic, don't think that would affect the system seeing it wrong especially that boot screen says 66mhz but bench mark …

Re: Help identify this 486 opti motherboard

Posted on 2018-07-21, 15:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I put the overdrive in, says its running at 66mhz on bootup, but sysinfo shows as dx4 75, so I guess that's the max this motherboard will run, also a score of 141 where a pentium 66 has just over 200

Re: Help identify this 486 opti motherboard

Posted on 2018-07-21, 09:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanx for your help yes I saw it on the second link through you then ended up on a different site for the same board, thanx for all your answers, ill try the overdrive see how it goes

Re: Help identify this 486 opti motherboard

Posted on 2018-07-21, 03:34

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I found it, looks like this one https://stason.org/TULARC/pc/motherboards/C/C … 86-33-50-L.html

Re: Help identify this 486 opti motherboard

Posted on 2018-07-21, 01:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanx for that I will study the links and material tonight when I get some time, from your knowledge do you think a intel overdrive chip could work in this board? I got a dx40dpr100 dx40dpr75 and dx20drp66

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