Is there an easy way to inject the microcode or check if it is present?
Once I asked Jan to add the microcode to my epox ss7 board and he answered it was already present, despite of that the board never posted with the tillamook.

Nemo1985 wrote on 2021-03-02, 19:08:

Is there an easy way to inject the microcode or check if it is present?
Once I asked Jan to add the microcode to my epox ss7 board and he answered it was already present, despite of that the board never posted with the tillamook.

it’s possible for the board to be incompatible or set wrong but still have a bios that supports it.

Verify voltages are correct and try some of the pin mods.

Not having the micro codes usually won’t prevent it from posting. It will just show up as wrong or unknown cpu.

Worked on my Tillamook again a bit after it seems too work fine on Asus XP55T2P4 Rev. 3.0
On my ASUS P/I-P55T2P4 (rev.3.1) it gave freezes in some games or already when trying to load autoexec and config.

Both need L2 mod of course, BF2 "extended mod" and VCC2DET mod as both boards will not recognize dual rail cpu and send 3.2v core voltage.

I haven't applied the VCC2DET before on the Asus XP55T2P4, where it seems to work fine without BUT probing the core voltage showed 3.2v ouuuups. So far the system was able to run my simple benchmark and game tests without showing any issue why I thought everything was okay... but it wasn't...
On the P/I-P55T2P4 the high single rail voltage was crashing always after a few seconds or minutes.... why I was wondering after it "worked" on the ATX version of the Board.

So far, probing the voltage showed the problem and thanks to the guys here, I was able to troubleshoot and to fix...

OC 266@300 running 4x75Mhz

Sorry for the dumb question, so it does work without issues on the P/I-P55T2P4?

Thank you

the_patchelor wrote on 2021-03-03, 09:55:

Worked on my Tillamook again a bit after it seems too work fine on Asus XP55T2P4 Rev. 3.0 On my ASUS P/I-P55T2P4 (rev.3.1) it ga […]
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Worked on my Tillamook again a bit after it seems too work fine on Asus XP55T2P4 Rev. 3.0
On my ASUS P/I-P55T2P4 (rev.3.1) it gave freezes in some games or already when trying to load autoexec and config.

Both need L2 mod of course, BF2 "extended mod" and VCC2DET mod as both boards will not recognize dual rail cpu and send 3.2v core voltage.

I haven't applied the VCC2DET before on the Asus XP55T2P4, where it seems to work fine without BUT probing the core voltage showed 3.2v ouuuups. So far the system was able to run my simple benchmark and game tests without showing any issue why I thought everything was okay... but it wasn't...
On the P/I-P55T2P4 the high single rail voltage was crashing always after a few seconds or minutes.... why I was wondering after it "worked" on the ATX version of the Board.

So far, probing the voltage showed the problem and thanks to the guys here, I was able to troubleshoot and to fix...

mobile.442.shareddzjtu.jpegTillamod.png

OC 266@300 running 4x75Mhz
IMG_5997.jpgIMG_5998.jpgIMG_5999.jpg

can you explain the 4x extended mod?

how I understand:
"normal" BF2 mod is just routing BF2 to NC pin, as on Tillamook BF2 Pin is on a different position.

for some Boards (at least the P55T2P4's) "Forcing" BF2 is required as without only 3.5x multi boots (=will bot as 233mhz CPU). BF2 can be activated when it will be connected to ground (VSS) or voltage (VCC3) pin.

the P55T2P4's do not have a factory jumper for BF2 (multi >3,5) so e.g. for a AMD K6-300 (4,5) you also have to bridge/mod the socket ...... then I think the normal "BF2" mod (BF2-NC) is enough. But right now I don't wanna have a flying cable or hard modded Board...

Nemo1985 wrote on 2021-03-03, 15:22:

Sorry for the dumb question, so it does work without issues on the P/I-P55T2P4?

Thank you

no issues once you do the 3 bridges on the CPU.
but I only can talk about my version/rev. 3.10

the_patchelor wrote on 2021-03-03, 16:24:

how I understand: "normal" BF2 mod is just routing BF2 to NC pin, as on Tillamook BF2 Pin is on a different position. […]
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how I understand:
"normal" BF2 mod is just routing BF2 to NC pin, as on Tillamook BF2 Pin is on a different position.

for some Boards (at least the P55T2P4's) "Forcing" BF2 is required as without only 3.5x multi boots (=will bot as 233mhz CPU). BF2 can be activated when it will be connected to ground (VSS) or voltage (VCC3) pin.

the P55T2P4's do not have a factory jumper for BF2 (multi >3,5) so e.g. for a AMD K6-300 (4,5) you also have to bridge/mod the socket ...... then I think the normal "BF2" mod (BF2-NC) is enough. But right now I don't wanna have a flying cable or hard modded Board...

Nemo1985 wrote on 2021-03-03, 15:22:

Sorry for the dumb question, so it does work without issues on the P/I-P55T2P4?

Thank you

no issues once you do the 3 bridges on the CPU.
but I only can talk about my version/rev. 3.10

is it connected to all three or just the outer two? I May need to do this also. Where do you set the jumpers when using this? I tried the jumper across the inner two and tried no jumpers and 2x jumpers but nothing except 233. my motherboard has options for 1.5/3.5x, 2x, 2.5x, 3x

we should update the picture guide for this

it works if all three are connect and also if only outer two.
Multi jumpers on board are then ignored. you can leave them or set what ever

(Edit from the !!!future!!! ^ I tried connecting all three, it released magic smoke from my motherboard. But I was able to repair it thankfully. do not connect all three) (this happened a few months ago though so maybe I did it wrong, in any case, maybe try the mod with a resistor to be sure nothing goes pop)

the_patchelor wrote on 2021-03-08, 18:37:

it works if all three are connect and also if only outer two.
Multi jumpers on board are then ignored. you can leave them or set what ever

Sweet!

Someone should update the pic that shows the mods.

Thank for the MODs!

Well, I did some benchmarks of the Tillamook.
Overclocked to 420Mhz (3.5 x 120).
I used my Asus P5A v1.06 with 1MB of cache.
Compared this to the 512k model and to a K6-2.

Here is Video:
https://www.youtube.com/watch?v=fqB4yCssUCM

galanopu wrote on 2021-03-11, 09:13:

Thank for the MODs! […]
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Thank for the MODs!

Well, I did some benchmarks of the Tillamook.
Overclocked to 420Mhz (3.5 x 120).
I used my Asus P5A v1.06 with 1MB of cache.
Compared this to the 512k model and to a K6-2.

Here is Video:
https://www.youtube.com/watch?v=fqB4yCssUCM

I was expecting it to totally destroy the k6-2 guess not so much.

Thanks for this review! Very informative!

I can confirm that the cpu finally works fine on Aopen Ax59 pro if the green bridge is applied to the cpu (while I haven't used the red).

So I decided to join the Tillamook fun.
Choose a GA-5AX (rev 3.0) for the experiment.
Added the green and the yellow (VCC and L2), set the MB to 2.0v, 66MHz FSB and 3.0 multi.
MB posted, showed "Tillamook 200MHz" on post and Booted into W2K .
CPU-z showed 100MHz and no L2 for some reason.
Rebooted into DOS and ran speedsys, mem graph clearly showed working L2.
Shut down and set multi to 3.5, once again success at 233MHz.

And here is where it went wrong.
Figured that I should probably double check CPU voltage with a multimeter.
I measured 1.5v, which was weird I thought.
And while I was pondering this the system crashed and the now familiar smell of defeat spread around the CPU area.
Turns out that despite my rather overkill insulation of the soldered jumpers the CPU cooler must have added just a tad to much pressure and shorted something.
I must have nudged the CPU cooler ever so slightly while poking around.
Now I curse myself for using a huge FEP32 when just about any cooler would have done.

So I had my fun, it worked for a while and thankfully the motherboard is OK.
The CPU however is not.
But that's OK, its not like they are expensive or rare (yet).

shame 🙁 get another and keep experimenting!

Where do you get them from? I'd love to get one.

There were plenty from chinese sellers on ebay. Now I can't find any to be honest

Hello guys.
See my result of overclocking this great CPU at march 2020 with enabled L2 cache.
https://hwbot.org/submission/4382631_griff_su … min_54sec_954ms
https://hwbot.org/submission/4382632_griff_wp … min_15sec_271ms
https://hwbot.org/submission/4266296_griff_cp … _266mhz_533_mhz

GRIFF wrote on 2021-08-20, 09:39:

Hello guys. See my result of overclocking this great CPU at march 2020 with enabled L2 cache. https://hwbot.org/submission/43826 […]
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Hello guys.
See my result of overclocking this great CPU at march 2020 with enabled L2 cache.
https://hwbot.org/submission/4382631_griff_su … min_54sec_954ms
https://hwbot.org/submission/4382632_griff_wp … min_15sec_271ms
https://hwbot.org/submission/4266296_griff_cp … _266mhz_533_mhz

You got it to 533mhz?! Woah

How high would it go on air cooling?

What bus speed?

Were you limited by bus, memory, or core clock

Sphere478 wrote on 2021-10-20, 21:16:

You got it to 533mhz?! Woah […]
Show full quote

You got it to 533mhz?! Woah

How high would it go on air cooling?

What bus speed?

Were you limited by bus, memory, or core clock

I had no problems pushing it beyond 400MHz.
It doesn't get that hot, even at those temps.

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.