With a good BX board which can reach 133MHz stable, and has a 1/4 PCI divider, the AGP bus will still run at 89MHz. So you need a tolerant graphics card as well. Or use PCI graphics.

Or look for i815E / Apollo Pro 133T, but most, if not all, are FCPGA2.

The board I'm looking at is an Aopen AX6BC, which from reading has previously been used with Tualatin. I have the Lin Lin adapter already, I'm just wondering if with a slotket that allows 133mhz it'll actually work.

From a mechanical and economical point of view you may consider to skip the slotket route and go for a socket 370 board. You can find most of the common ones listed here: http://www.vogonswiki.com/index.php/List_of_S … 70_motherboards
There are success stories about combining Lin-Lin with slotkets but there are also reports on failures. These parts are now around 20 years old and working condition is therefore not guaranteed. A proper configurable Coppermine slotket will typically set you back between $ 50 and $ 100 on Ebay. If you did not already have the Lin-Lin I would follow PD2JK's advice and suggest you go for a Tualatin-ready motherboard.

Thanks, all really helpful that wiki page is useful.

To be honest with the build I'm planning - a windows 98/DOS build I feel I don't really need a Tualatin, I'm only after adding one because I already have it and the Lin Lin adapter.

I think what I could do is get the mobo, I think from what I understand it's a decent motherboard and at the very least supports the fastest Coppermines, and if it works with the Tualatin all the happier.

I'll probably be getting a 4000 series card and hope it works with the AGP being overclocked.

Good luck then, it will be interesting to follow your progress.

I use a Lin-Lin adaptor + Asus slotket to run a Celeron 1400 in my Dell T550. Works just fine, even slightly overclocked to 103MHz FSB (1442 MHz) and undervolted to 1.35v. The slotket I use supports FSB133 processors, but the Dell/Intel motherboard unfortunately does not.

I can also confirm that a coppermine slocket + LinLin should work without issues. S370 boards will be cheaper, and as you have the LinLin adapter already, just make sure you buy at least a Coppermine 133 MHz FSB compatible board.

Thanks all, that does help.

What actually indicates whether a slotket can handle coppermine? I know for a fact my motherboard can support the voltage required, is it a case of ensuring the slotket can pass that over, either by setting the jumpers or leaving it in auto?

I'm pretty sure I have an 1000mhz 100FSB Coppermine CPU around somewhere I hope might work.

Surprised noone's suggested it yet. If you're willing to do a relatively simple pin mod, you can do away with the Lin Lin adapter and run a Tualatin directly in a Coppermine slotket.
If your mobo or slotket allows setting the voltage manually with jumpers or from BIOS menu, you don't even need to do the VID part of the mod (the blue/purple pins), and get away with desoldering two pins and isolating/bridging one. I did the latter by cutting the trace to the AK4 pin and soldering in a jumper wire to AN11.

I've done it successfully with a couple of MSI MS-6507 Master slotkets and one called 370SPC from an unknown maker. The former has VID jumpers, the latter is used with an Abit BH5 mobo which allows setting the voltage from BIOS. Maybe those relatively modern slotkets even will forward the VID signal from Tualatin processors correctly and would work with auto voltage setting without doing the VID part of the mod. Haven't researched it though, setting it manually was good enough for me.

Note that the CPU VRM on the mobo of course must support the voltages you want. That seems to be one of those mixed bags when it comes to Slot1 mobos, it can even vary between different specimens of the same model. You'll have to find the datasheet for the VRM controller found on your board and look it up.

Thanks, that does look fairly simple, and I'm pretty sure I could manage the mod.

A lot of the trouble I'm having is actually finding a Coppermine suitable slotket now. Outside of the more popular ones it's difficult to find documentation of exactly what will or won't work, as there seems to be tons of generic ones out there.

sketchus wrote on 2024-06-24, 09:33:

Thanks, that does look fairly simple, and I'm pretty sure I could manage the mod.

A lot of the trouble I'm having is actually finding a Coppermine suitable slotket now. Outside of the more popular ones it's difficult to find documentation of exactly what will or won't work, as there seems to be tons of generic ones out there.

If you are dependant on Ebay you can find for example listings via Google [ slot 1 adapter Ebay ] or [ socket 370 adapter Ebay ]. The better known to work brands like ASUS and MSI Master are quite expensive these days. The majority of the other slotkets on sale are designed for Mendocino Coppermines and require modding and some are of questionable quality.
The 370SPC mentioned by kaputnik happens to be available too. This 370SPC was marketed by Fastfame according to an Intel bulletin.
https://tinyurl.com/j3263nf5

Thanks, typically that adapter you sent is US only but it's giving me something extra to look out for at least.

Is there any way of telling which of the no-name adapters would work?

Sorry another question...if an adapter supports Coppermine will it typically support a modded Tualatin?

Edit:

For once my lack of ability to throw things away may have paid off.

I found this out in a shed:

https://ibb.co/ftbLjXG

I have no idea if this ever worked but I see these adapters around a fair bit.

The term no-name does not fully apply. Quite a number of the unbranded slotkets were developed and/or marketed by motherboard manufacterers or otherwise known hardware developers and can be identified via a serial number printed on the pcb. Attached an overview of slotkets that worked with FCPGA cpu's. But as said, in some cases the quality of individual products is questionable for various reasons and when deployed for Tualatin modding there is no quarantee that it will work (notwithstamding certain individual success stories on the web).

I will send you a more complete 'catalogue' of slotkets via pm, check you inbox.

sketchus wrote on 2024-06-24, 12:34:

Edit: For once my lack of ability to throw things away may have paid off. I found this out in a shed: https://ibb.co/ftbLjXG I […]
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Edit:
For once my lack of ability to throw things away may have paid off.
I found this out in a shed:
https://ibb.co/ftbLjXG
I have no idea if this ever worked but I see these adapters around a fair bit.

Yes, that is a common type. On the rear side at the right there is a date stamp on the pcb. The ones from 2000 starting with 00 are most likely working with Coppermines. The fact that there is a Coppermine installed seems at least hopeful.

Thanks so much for the list you sent that is basically what I've been looking for. Incredibly useful.

My slotket here doesn't begin in with 00 so it's possible it doesn't support it, or perhaps not run it at full speed although I'm imagining it's an all or nothing situation.

I am concerned about the CPU and slotket in terms of how they've been stored (totally my fault) they were shoved in a box years ago, I've no idea if they'll still work, I won't know if it's the slotket failing, the CPU etc.

There is some wear on the contacts too, although it looks far worse in the first photo than the second. At worst maybe I'll be able to salvage the CPU as a 1GHZ Coppermine would be perfect for my Win98 build.

https://ibb.co/0X8NZXB
https://ibb.co/1Lxqj83

Spray some Deoxit or other good contact cleaner in the socket. Clean that contact as well with it. You could put a thin layer of solder on the contact.

If there isn't physical damage further and the capacitors (if any) are in good condition, it should work fine.

Quick update...

Computer won't boot with that slotket from above. I'll probably trash the slotket, keep the cpu and see if that works.

Edit: closer inspection reveals some severed traces on the rear of the slotket. That'll do it.

sketchus wrote on 2024-06-26, 21:14:

Quick update...

Computer won't boot with that slotket from above. I'll probably trash the slotket, keep the cpu and see if that works.
Edit: closer inspection reveals some severed traces on the rear of the slotket. That'll do it.

Are you going to buy another slotket ?

Yes, well I'd love one. Not easy to find the right one.