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Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-22, 21:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thandor wrote on 2022-02-22, 21:14: Would be interesting to see if the chip will overclock higher with 0KB L2-cache 😀. There wouldn't be much point in that. Lack of L2 cache will more than offset any gains from overclocking. Think Celeron-266 vs. P2-266.

Re: Fixing Dallas battery on 486 motherboard.

Posted on 2022-02-22, 21:14

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am sure that whatever J10 does, it is not a header for external battery. The Dallas DS12877 does not have pin connections for an external battery.

Re: Coolers that can clip onto socket 3 - my experiments

Posted on 2022-02-22, 13:24

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No real issues. The shape you bend them in depends on the exact heatsink you use, and the position of the tabs on your target socket. I also use heatsink compound which helps a lot tacking down the heatsink to the CPU so a lot of the strain is taken away from the clip. Make the custom bent clip as …

Re: Coolers that can clip onto socket 3 - my experiments

Posted on 2022-02-22, 13:16

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Don't have pics. Unbending and bending back is easy, use fine-tipped pliers. I personally use medical forceps for that.

Re: Coolers that can clip onto socket 3 - my experiments

Posted on 2022-02-22, 13:06

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My solution for custom, cheap socket3 HSF: 1. 40x40mm heatsinks from Amazon, $10 for a pack of 4, for instance: https://www.amazon.com/gp/product/B07GWFSBN3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 40x40mm is the perfect size for socket3, they fit perfectly on top of a 486. For socket 5 or 7, …

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

Posted on 2022-02-22, 12:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I didn't try that. I may do it tonight when I get home. I did set the CMOS to "halt all errors except keyboard" so that should work. FWIW I set the above because, at first POST after recapping, it gave me a "keyboard error, press F1 to continue" - despite the keyboard working fine, pressing F1 got …

Re: Voltage problems after recapping (DFI K6XV+/66)

Posted on 2022-02-22, 12:49

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I assume you did install a CMOS battery. The picture doesn't show one. If you didn't, that would be the first thing to do. :) I will also assume that you don't have an oscilloscope, since you don't even have a way to measure voltages. Get a multimeter, you can find decent ones for probably 10-15 …

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-22, 12:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

RaiderOfLostVoodoo wrote on 2022-02-22, 12:17: Step 1: Order dozens of K6-2+/570ACZ for 20€ each Step 2: Order fake lids that read K6-III+/550ACR Step 3: ? Step 4: Profit! […] Show full quote Step 1: Order dozens of K6-2+/570ACZ for 20€ each Step 2: Order fake lids that read K6-III+/550ACR Step 3: …

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

Posted on 2022-02-22, 12:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I guess it may help if you plan on using your retro machine to make and playback VCDs. 😀

Re: Could the use of Nichicon HV(M) series replacement capacitors be related to stability issues on my motherboard?

Posted on 2022-02-22, 02:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If in doubt, it's never a bad idea to replace with higher capacity caps. The extra capacity helps with the filtering, and the ESR decreases with capacity increase (higher capacity in the same series = lower ESR).

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-22, 01:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I will guess that the stuff AMD used isn't silicone, or maybe it's a special heavily-modified silicone. Most silicone glues don't adhere well to metal, aluminum in particular. It's possible that it's actually a silicone-ABS compound. Which would explain why it swells and softens with acetone, which …

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

Posted on 2022-02-22, 01:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I guess I'll go ahead and install XP and see if it's stable. 😀

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-22, 01:42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I use this. Works fine. https://www.amazon.com/gp/product/B0002UEN1A/ … e?ie=UTF8&psc=1

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

Posted on 2022-02-22, 01:38

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well I've cleared the CMOS a few times, didn't help. Flashed the latest BIOS version 1.D from the original 1.A and it also didn't help. I noticed that during the time it waits during POST, if I press the NumLock key, all 3 LEDs on the keyboard flash, then go blank. Do this 5-6 times in a row, and …

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

Posted on 2022-02-22, 00:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Reset gives cold boot. But even a warm boot (ctrl-alt-del after boot) results in the same long delay during POST. Just without memory count at the end of the delay.

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

Posted on 2022-02-22, 00:15

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Recapping a socket 939 board. https://i.postimg.cc/7PnPBwSV/IMG-20220220-093642.jpg https://i.postimg.cc/qMBJSSLd/IMG-20220220-150142.jpg Silly cap, you're supposed to be 3300uF, why'd you have to burst like that? https://i.postimg.cc/mDvwhKbX/IMG-20220220-152206.jpg Okay after recapping the …

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-21, 15:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just want to add this for anyone else seeking to decap their K6-2+ To soften up the silicone adhesive dunk the CPU in acetone upside down for a while, it completely softens it up and you can slice the lid off like it were attached with butter. Almost no force required. Excellent tip. Will …

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-21, 13:47

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This now begs for benchmarks of the modded vs unmodded K6-2+/570s.

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

Posted on 2022-02-21, 13:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The ones I'm getting are rated for ESR of 0.015 ohms, should be good enough.

Re: SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod

Posted on 2022-02-21, 12:26

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wondering if the CPU works if that 0R resistor is removed but not reinstalled in the other position, and if so what amount of cache it shows? 😀

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