Maxing out a 430TX Socket 7 board @500MHz with a K6-2+ and a patched bios (DFI P5BTX/L part 2)

[@envoycdx]

Very kool. You and Necroware definitely need more views :)

[@Choralone422]

Great work! Back in those days, I had a Megatrends HX83 main board with a K6 200Mhz CPU that I ran at 83x2.5 for a 208Mhz OC. If I had had the same level of technical skill you do, I might have tried a later K6-2 CPU with it. Instead, I ended moving to an Abit BH6 main board with a Celeron 300A, which was OC'd to 464Mhz for many years.

[@scrap_computing]

Yeah, these early Celerons were so cool! Socket 7 was pretty much a dead socket by the time these K6-2+ CPUs came out.

[@darthtripedacus1]

I had my IBM Aptiva with a 550 and SIS 530. Loved that PC

[@Inject0r]

Your video are really fun to watch. It’s a real shame that you don’t get the views you deserve yet. Awesome outcome for this board. I really like the fact that there’s an Intel chipset, running an AMD CPU. Great job on the diagnosing with the jumpers and switches!

[@scrap_computing]

Thanks! Yeah it is pretty cool that these Intel chipsets work pretty well with late K6 CPUs.

[@AladimBR]

Very nice tip! I've recently got a FIC VA-502 board running a P233MMX. According to the manual, the lowest I could get was 2.8V. I applied a patched BIOS from Jan Steunebrink, which enabled the HDD limit up to 128GB, added more CPUs, etc. I went ahead and measured directly the pin Vcc2 as you did in the video, and to my surprise, it was reading 2.2V (instead of 2.8V). The voltages were completely different from the manual (2.8V was 2.2, 2.9V was 2.8, etc). I was able to install a K6-500 running at 450MHz (6x75). Very happy with that, no need to mod the board and very safe for the CPU. Thanks a lot, really love your channel

[@RetroTinkerer]

Hi, thanks for your video, pretty nuts that after the BIOS patcher update you got a noticeable performance improvement, I didn't expect that!

[@rasz]

6:55 1MB VGA turned to 512KB and transfer speed halved. 7:40 Yes, I think this card is dying :) one of the chips might have bad connection? with one chip it switches to 16bit memory bus

[@AncapDude]

OK now i have to grab all my old so7 boards from the cabinet to check if they are actually hidden super7 boards. thx.

[@waytostoned]

Similar setup on my k6-2 build, but I used a k6-2 475mhz and oc'd to 500 on an ECS P5TX-Bpro motherboard.

[@scrap_computing]

These K6-2 CPUs are pretty great for Socket 7 builds.

[@atheatos]

Nice Video! Thank you for the mention :)

[@scrap_computing]

Thanks! I love your channel, lots of great videos!

[@marquesdlr]

Amazing! Please keep uploading videos like this!

[@Vanessaira-Retro]

Fantastic video!

[@scrap_computing]

Glad you liked it!

[@ABRetroCollections]

On the TX, 2x translates to 6x on the multiplier. I use to play with various TX boards in the past. The most I ever achieved was 75x6 with actual K6-2 450 MHz CPU's.

[@scrap_computing]

Yes, 2x is translated to 6x by the K6-2 CPUs regardless of the chipset. Perhaps this board was an exception, I was surprised that it worked so well!

[@MJay999]

Definitely deserving more views! So, hoping this comment will help the algorithm a little bit also ;)

[@scrap_computing]

Haha thanks :)

[@rsantarelli]

Very interesting! As I'm going to try the same with a FIC PT-2011 and I don't want to break anything, I have a few questions: - From my understanding, to measure the voltage, you turned the system on without any CPU inserted, and adjusted the DIP switches directly, without turning the system off. Am I right? Is it safe to proceed that way? - What if I don't have an oscilloscope? Can I just try some jumpers configurations and find out what it does when I turn the system on with the CPU inserted? Again, is it safe to proceed that way?

[@scrap_computing]

- Yes, you should be getting a good voltage reading without the CPU plugged in. - It should be safe to try different FSBs by plugging in the CPU and checking what the system reports. Just use the lowest multiplier and a CPU that can handle the high FSBs.

[@simontay4851]

Do all K6-2 CPUs interpret 2x multiplier as 6x or just certain ones? I have a P5BTX/L board and would like to put a K6-2 CPU in it.

[@simontay4851]

Will any K6-2 Super Socket 7 CPU work if i set the multiplier to 2x (6x) and FSB to 83Mhz for 500Mhz?

[@scrap_computing]

According to the K6-2 datasheet, chapter 4, page 92: "The ratio selected is dependent on the stepping of the Model 8. The 2.0x ratio is supported on the Model 8/[7:0], whereas the 6.0x ratio is supported on the Model 8/[F:8]". So if I understand correctly there are a few models that will use 2.0x, and these are the "Chomper" models. The "Chomper Extended" models will use the 6.0x multiplier as listed here: en.wikipedia.org/wiki/AMD_K6-2 . So if I understand correctly any K6-2 400MHz or more should use the 6.0x multiplier.

[@scrap_computing]

Only if they are clocked originally at 500MHz or more. K6-2 are pretty bad overclockers.

[@PROSTO4Tabal]

You know which is my favourite 430tx motherboard? Shuttle HOT 569

[@scrap_computing]

Why is it your favorite ?

[@death2all79zx]

Does setmul still work after you patched the bios?

[@scrap_computing]

I didn't check, but why wouldn't it work ?

[@cromulence]

Nice! Now you just need to mod your K6-2+ to a K6-III as it doubles the cache I believe.

[@scrap_computing]

Great idea, I will give it a try.

[@cromulence]

@@scrap_computing Ah I love this channel! Such great content!

[@wskinnyodden]

16Mhz hahahaha

[@DmitriyPotter]

всё бы ничего, но можно было русские субтитры сделать. акцент выдаёт бульбаша