As far as I know the VID connectors of Slot 1 cpu's and slotkets are the same across the board.

But for $20 or so you can get Celeron slotkets on Ebay with voltage adjustment via jumpers which makes your life a lot easier. What type of slotket do you have - does it have any markings ?

PARKE wrote on 2025-01-06, 13:03:

As far as I know the VID connectors of Slot 1 cpu's and slotkets are the same across the board.

The attachment VID.jpg is no longer available

But for $20 or so you can get Celeron slotkets on Ebay with voltage adjustment via jumpers which makes your life a lot easier. What type of slotket do you have - does it have any markings ?

Thanks! The slotkets I have aren't branded, but I'm pretty sure they're ECS Smart Adapters, version 1.5. I know there are other slotkets out there with voltage adjustment, but the problem is I'm ultimately trying to go for a dual-CPU setup and not all slotkets are set up to enable dual Celerons (whereas these ECS ones are).

ThisDoesNotCompute wrote on 2025-01-06, 14:45:

Thanks! The slotkets I have aren't branded, but I'm pretty sure they're ECS Smart Adapters, version 1.5. I know there are other slotkets out there with voltage adjustment, but the problem is I'm ultimately trying to go for a dual-CPU setup and not all slotkets are set up to enable dual Celerons (whereas these ECS ones are).

Colin, if that's you, just chiming in to say that I really enjoy your channel!

Keep up the awesome work!

ThisDoesNotCompute wrote on 2025-01-06, 14:45:

Thanks! The slotkets I have aren't branded, but I'm pretty sure they're ECS Smart Adapters, version 1.5. I know there are other slotkets out there with voltage adjustment, but the problem is I'm ultimately trying to go for a dual-CPU setup and not all slotkets are set up to enable dual Celerons (whereas these ECS ones are).

The ones marked as Ver 1.5 were (also) marketed by PCChips. Interesting that they support SMP. Do yours have gold plated teeth ?

A couple things... I have multiple slotkets that have Dual Cpu jumpers on them but even using 2 identical slotkets I could not get them to work in dual setups. The most reliable I found that did work was Asus 370-DL (with dual PIII) but they are rare, sought after and expensive in most cases. This was on a PII/PIII motherboard from supermicro, I did try the Asus 370-DLs on my dual PII motherboard https://theretroweb.com/motherboards/s/micron … ess-09-00301-xx but was unable to get two identical C300A celerons to work on it.

I did do a little research a couple of years ago and found: https://web.archive.org/web/20231231015102/ht … /index-370.html and https://www.anandtech.com/show/265/2 and https://web.archive.org/web/20010210013824/ht … on/index_e.html but never got around to trying it as I didnt have time to modify my slotkets. (no way I was going to mod my Asus ones but the cheaper ones) <edit> I went back and rewatched your video (had watched it before) and see you know about the modification bit... I did not remember that part..sry.

I'm guessing thats why the Abit BP-6 was so popular as you could Dual Celerons without modification.

PARKE wrote on 2025-01-06, 17:26:

The ones marked as Ver 1.5 were (also) marketed by PCChips. Interesting that they support SMP. Do yours have gold plated teeth ?

Mine do not have a gold-plated edge connector, but look identical to the PCChips one in your photo. Well, kind of -- one of them has the two jumpers, while the other is missing the jumper headers and simply has a solder bridge between the pins on the back. But either way I can confirm they do indeed support SMP without modification. I just need to give the Celerons a little voltage boost to get them stable at 450MHz 😉

Best of luck to you. I have a retail version (SL32A) and, while I could get it to boot and do stuff at 450MHz at stock voltage, I could never surpass random stability/corruption issues. Boosting the voltage by 5% helped, but I could never get it to a state where I would have felt comfortable running it at 450MHz as a daily driver like people did back in the day--it's way too crashy. I have a couple of PPGA versions like you have that I intended to test some day, but I suspect I'll always find something more interesting to do than test them 🙁

ThisDoesNotCompute wrote on 2025-01-08, 01:16:

Mine do not have a gold-plated edge connector, but look identical to the PCChips one in your photo. Well, kind of -- one of them has the two jumpers, while the other is missing the jumper headers and simply has a solder bridge between the pins on the back. But either way I can confirm they do indeed support SMP without modification. I just need to give the Celerons a little voltage boost to get them stable at 450MHz 😉

Yes, they come in both flavors, with and without jumperblocks, and the same goes for the ECS Smart Adapter Ver 1.2 which is at first glance indistinguishable from the 1.5 version except for the marking on the pcb. I hope that your efforts will be successful although in the last link by Grem Five there is a comparison in which these slotkets are listed as [not overclockable].

For dual P3/P3-S CPU support:

there is a some undocumented pin N33 and it must be connected to BR1# on slot1 edge,

http://tipperlinne.com/slot-t.htm

it is on my to-do plans to poke around this info.

N33 is mentioned here: https://www.bp6.com/board/viewtopic.php?t=1484
scroll down to [AN15]
But this particular thread is about modding Slotkets for use with Celeron cpu's so the N33 mod is irrelevant.

ThisDoesNotCompute wrote on 2025-01-08, 01:16:

Mine do not have a gold-plated edge connector, but look identical to the PCChips one in your photo. Well, kind of -- one of them has the two jumpers, while the other is missing the jumper headers and simply has a solder bridge between the pins on the back. But either way I can confirm they do indeed support SMP without modification. I just need to give the Celerons a little voltage boost to get them stable at 450MHz 😉

I just saw your Youtube video dealing with the overclocked Celerons in SMP. My guess is that you may be more successfull with a different set of slotkets. There are cheaper alternatives for the ASUS DL because you do not need slotkets that are capable of running Coppermines in SMP. That is what makes those ASUS slotkets so sought after.