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Tillamook 266MHz and working L2 cache?

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Reply 360 of 388, by LeFlash

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feipoa wrote on 2021-10-22, 11:40:

What was the result with running dual Tillamooks? I recall reading somewhere that Intel removed SMP on the Tillamooks entirely, not just disabled it. Probably to reduce the transistor count. I tried dual Tillamooks on a socket 5 system using Evergreen and Kingston adapters, but it will only ever see one CPU. If I use the regular P233MMX chips, the system detects both.

At least the corresponding pins are N/C or otherwise used according to the datasheet.
It explicitly mentions the missing SMP.

https://www.versalogic.com/wp-content/themes/ … f/tillamook.pdf
Page 14:

Differences from Desktop Processors The following features have been eliminated in the low-power embedded Pentium processor with […]
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Differences from Desktop Processors
The following features have been eliminated in the low-power embedded Pentium processor with
MMX technology: Upgrade, Dual Processing (DP), and Master/Checker functional redundancy.
Table 1 lists the corresponding pins that exist on the Pentium processor with MMX technology but
have been removed on the low-power embedded Pentium processor with MMX technology.
Table 1. Signals Removed from the Low-Power Embedded Pentium® Processor
with MMX™ Technology
Signal Function
ADSC#
Additional Address Status. This signal is mainly used for large or standalone L2
cache memory subsystem support required for high-performance desktop or

server models.
BRDYC#
Additional Burst Ready. This signal is mainly used for large or standalone L2
cache memory subsystem support required for high-performance desktop or

server models.
CPUTYP CPU Type. This signal is used for dual processing systems.
D/P# Dual/Primary processor identification. This signal is only used for an upgrade
processor.
FRCMC# Functional Redundancy Checking. This signal is only used for error detection via
processor redundancy and requires two Pentium processors (master/checker).
PBGNT# Private Bus Grant. This signal is only used for dual processing systems.

PBREQ# Private Bus Request. This signal is used only for dual processing systems.

PHIT# Private Hit. This signal is only used for dual processing systems.

PHITM# Private Modified Hit. This signal is only used for dual processing systems.

you can never be sure, but why should the datasheet lie in case of the pinout?

Reply 361 of 388, by Sphere478

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feipoa wrote on 2021-10-22, 11:40:

What was the result with running dual Tillamooks? I recall reading somewhere that Intel removed SMP on the Tillamooks entirely, not just disabled it. Probably to reduce the transistor count. I tried dual Tillamooks on a socket 5 system using Evergreen and Kingston adapters, but it will only ever see one CPU. If I use the regular P233MMX chips, the system detects both.

I don’t have dual tillamooks but once tried one and a regular 233 one in master and vice versa it only ever detected one so yeah, I believe no bueno on dual unfortunately

But…..

There exist rumors of some really old socket 5 boards that used non intel smp tech before intel came out with it being able to run dual k6 with adapters.

That may work with tillamooks

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Reply 362 of 388, by Sphere478

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I decided to try the tillamook in my iWill p55xb2 motherboard and it didn’t go well until I did ALL of the jumper mods shown in the linked pic. (Except the extended 4x mod, not shown)
I even found a jumper setting that enabled 300mhz without having to do the extended 4x mod.

download/file.php?id=101221&mode=view

🖥Craziest socket 7 build on a 430tx chipset
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Reply 363 of 388, by Anonymous Coward

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Enabled 300MHz? Are you just doing 4x75, or did you find a way to get 4.5X?

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 364 of 388, by Sphere478

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Anonymous Coward wrote on 2021-10-29, 07:36:

Enabled 300MHz? Are you just doing 4x75, or did you find a way to get 4.5X?

4x75 mobo won’t go higher

🖥Craziest socket 7 build on a 430tx chipset
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🖥Tyan S1564S to S1564D single to dual processor conversion

Reply 365 of 388, by Anonymous Coward

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It doesn't matter what multipliers the motherboard supports. You can get around that with a little soldering.
I was just wondering if the Tillamook 266 supports 4.5x (documented or not). There is a Tillamook 300 that does, though not in this package.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 366 of 388, by Nvm1

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Anonymous Coward wrote on 2021-10-29, 13:53:

It doesn't matter what multipliers the motherboard supports. You can get around that with a little soldering.
I was just wondering if the Tillamook 266 supports 4.5x (documented or not). There is a Tillamook 300 that does, though not in this package.

How do you mean not in this package? I do have a 300mhz example on a socket7 adapter and if I am correct did post some pictures of it earlier.

Reply 367 of 388, by Sphere478

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Nvm1 wrote on 2021-10-29, 14:14:
Anonymous Coward wrote on 2021-10-29, 13:53:

It doesn't matter what multipliers the motherboard supports. You can get around that with a little soldering.
I was just wondering if the Tillamook 266 supports 4.5x (documented or not). There is a Tillamook 300 that does, though not in this package.

How do you mean not in this package? I do have a 300mhz example on a socket7 adapter and if I am correct did post some pictures of it earlier.

You have a golden tiger?

🖥Craziest socket 7 build on a 430tx chipset
🖥Dual socket 7 build
🖥Tyan S1564S to S1564D single to dual processor conversion

Reply 369 of 388, by Anonymous Coward

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Is that a question or a statement?

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 370 of 388, by Sphere478

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pentiumspeed wrote on 2021-10-30, 02:16:

I could not find any tillamook 266MHz in socket 7 format?

Cheers,

they pop up on ebay from time to time

🖥Craziest socket 7 build on a 430tx chipset
🖥Dual socket 7 build
🖥Tyan S1564S to S1564D single to dual processor conversion

Reply 373 of 388, by Sphere478

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TechieDude wrote on 2021-11-13, 14:03:

Now that you mention it, they don't seem to be as readily available as they used to...

Maybe because of this thread 🤣

🖥Craziest socket 7 build on a 430tx chipset
🖥Dual socket 7 build
🖥Tyan S1564S to S1564D single to dual processor conversion

Reply 374 of 388, by feipoa

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SL2Z4 is the 266 MHz mobile Tillamook. https://www.cpu-world.com/sspec/SL/SL2Z4.html
They used to be a consistent $17 on eBay, then $20, then $24, then *poof*

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Reply 376 of 388, by Sphere478

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Did any non tillamook intel cpus ever get the 4x multi?

I’m trying to figure out if maybe a pre tillamook mobile may have had it??

I’m trying to figure out how to do better than dual 233 on my dual board that is stuck at 66fsb
I can of course do k63+ but not in dual, so it’s not the same 🙁

🖥Craziest socket 7 build on a 430tx chipset
🖥Dual socket 7 build
🖥Tyan S1564S to S1564D single to dual processor conversion

Reply 378 of 388, by maxtherabbit

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rmay635703 wrote on 2022-01-07, 20:36:

Oh how naive we were

https://www.anandtech.com/show/53

It is because of this that a Pentium MMX-166 can outperform its 200MHz Classic brother.

🤣 what bullshit, imagine thinking a MMX could compare to the God tier Pentium Pro

Reply 379 of 388, by Doornkaat

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maxtherabbit wrote on 2022-01-07, 21:02:
rmay635703 wrote on 2022-01-07, 20:36:

Oh how naive we were

https://www.anandtech.com/show/53

It is because of this that a Pentium MMX-166 can outperform its 200MHz Classic brother.

🤣 what bullshit, imagine thinking a MMX could compare to the God tier Pentium Pro

That quote is about the 166MHz Pentium MMX outperforming the 200MHz Pentium non-MMX though.