Re: 200 mhz socket7\ss7 round up

Posted on 2022-03-12, 02:58

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's the version at 100 mhz fsb. Please notice the * on winchip 2a, since it wasn't available the 2x multiplier setting it has been tested at 2,33, hence the increased performance. I had some testing issues, the intel pentium was unable to end the final reality benchmark, it was closing without …

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Re: 200 mhz socket7\ss7 round up

Posted on 2022-03-12, 02:52

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Updating this comparison with more cpus, different hardware and different conditions, I consider this redux more realistic than the others, since the motherboard was able to support the vcore of the cpus while the Asus p5a was more limited. A direct comparison at 200 mhz with 100 mhz bus was not …

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Re: Cyrix/ST/IBM Aiming for the stars!

Posted on 2022-03-12, 02:25

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Probably, still the higher v2.9 frequency is 250 mhz (little to none overclocking chance), while the v2.2 is 285 (or 300 for the almost impossible to find 433gp). That's the performance difference at 250mhz clock: Immagine.png The configuration was slightly different compared to the 200 mhz, but …

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Re: Cyrix M II Aiming for the stars!

Posted on 2022-03-12, 01:56

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

366: https://www.ebay.com/sch/i.html?_nkw=cyrix+366gp&_sop=15 You'd better get this 366 rated v2.9, quite rare and interesting, if you ask me. The v2.9 is faster clock to clock compared to v2.2. Be sure to have a nice beefy heatsink :D photo_2022-03-12_02-55-44.jpg Also if you have different cyrix\ …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-12, 01:21

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks it seems to be a winchip 2a 200 mhz, very nice. Do you plan to test it?

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 23:27

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Perhaps that means the Winchip 2+ was actually also abandoned. Maybe in favor of getting to Winchip 3 ASAP. 2B could just be the die shrink mentioned in that PCMag table. Yes, it could be like that. 2b was indeed produced at 0.25 µm, instead of 0.35. I agree with Anonymous Coward, that despite they …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 23:10

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for the corrections. I think the Winchip 2-3d was just the initial name of Winchip 2, there isn't any winchip 2 without 3dnow, despite the lost "3d". According to my tests, that commercial advertising is quite exagerate. At 200 mhz (66x3), the wattage peak on dos is visible on the fifth …

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Re: Max cpu voltages?

Posted on 2022-03-11, 22:52

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2022-03-11, 18:49: Any links to more info on this last batch? It was something discussed a couple of years ago on cpuworld forum, I can't find any link actually, sorry.

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Re: Max cpu voltages?

Posted on 2022-03-11, 14:29

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Usually the ibm branded cpus were more tollerant to oc compared to Cyrix. About the MII there are indeed 2 versions, v2.9 and v2.2 (there are rare batches of v2.7 too, I have one). There are some subtle architerctural differences between the v2.2 and v2.9, at the same frequency the higher voltage is …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 12:11

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I agree, the rise mp6 seemed so ahead of time thanks to his package. It's also an interesting cpu, very low power consumption (at least the iDragon version I have) and it has the record of superpi 1mb time on my 200 mhz roundup and in doom too! While in other tests wasn't that good. I'm still …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 10:51

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Reading this was a good coffee break. It was jungle back then and I'm finally making sense out of all those S7 cpus. If there was a "what could have been made to correct bad performance in core designs" article I'd be done for life, but there would be too much to write I think :) The few times I …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 10:39

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting. I have a Winchip 2A which looks like yours, except my pins were perfectly intact. Do we know the purpose of this hack job? Was it just to limit multiplier options? I suspected it was done to lock the cpu multiplier, but i'm not so sure anymore. The other 3 missing pin were the: AJ23 …

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Re: Idt Winchip 1, 2, 2a and 2b differences

Posted on 2022-03-11, 09:46

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey Feipoa, great to see you there. The cpu with the infamous evergreen adapter is the Winchip2A, i'm talking about this thing (picture courtesy of Tiido): http://www.tmeeco.eu/BitShit/PCschit/NemoStuff/CPU/IMG_7842.jpg Here are the restored pins: http://www.tmeeco.eu/BitShit/PCschit/NemoStuff/CPU/ …

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 22:34

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you all for the help, which model did you use? I'm looking for replacement, apparently the electrolytic capacitors are quite rare for those capacitance, while the polymer caps I found only gets to 1200uf or 1500uf. For 3300uf I found PF0J332MNN1220 Elite but they sound like rubbish, right? …

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 21:54

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Adding a pic of mine (pre recap) just to confirm 4700uF and 6.3V. Tho I didnt need to swap mine, they measured perfectly. https://i.imgur.com/wyumoFpl.jpeg Thank you thank you. While the ones near the cpu are 3300 or 3600? Although it's unlikely, check if any of the leads are shorted on the MOSFETs …

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 18:20

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You are right, my eyes tricked me, they are the same except for the 2 missing dimm slots. Ok i'm downloading the latest bios, I was thinking to use the AMD Athlon XP 2400+ LP (Thoroughbred), those socket a cpus were hot like hell, this low power seems fine, if supported. About the ddr, I will use 1 …

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 17:16

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

First things first. I bought it as broken, I will try to solder the 2 missing caps and if it works I will recap the whole board, also the seller gave me the same advice since those caps were manufactured during the plague era. From what I found there are 3 models of the KG7. The vanilla one, which …

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 11:22

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by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PC Hoarder Patrol wrote on 2022-03-10, 01:55: https://forums.overclockers.co.uk/threads/fou … -raid.18903814/ Thank you so it's confirmed v6.3 4700uf!

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Re: ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-10, 01:18

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From memory, those are 4700uF or 3900uF 6.3V. Either value has been seen there. They're probably connected to the 5V input to the CPU VRM. If you use a meter you might find continuity from the positive pads to the 5V pins on the ATX connector. I will check when I receive it. According to this …

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ABit AB-KG7 missing caps, pictures needed

Posted on 2022-03-09, 23:14

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, I just bought this motherboard. It has 2 capacitors missing near the agp slots. Unlucky it seems there are no high resolution pictures on the net to check the voltage and capacitance. Any help please? This could also useful to check if there is any other missing components, if anyone here has …

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