Identifying a 486 cpu (solved, sort of...) \ VOGONS

Identifying a 486 cpu (solved, sort of...)

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First post, by Grosvince

Posted on 2024-03-23, 17:23

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Hello !

I've got this DX2 CPU for a while but unfortunately it has a heatsink glued on it.

I only have a 486 rig from Tulip Computers in which I have tested the CPU, but the post screen is very simple with no information about CPU. Furthermore this computer didnt have a classic bios setup program (you need to run a program from dos, which I don't have yet).

Is there any chance that a chip guru could tell me what is this cpu with the backside markings only ? Is it and Intel, AMD, what Is the rated frequency ?

Vincent

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Last edited by Grosvince on 2024-03-24, 11:05. Edited 1 time in total.

Reply 1 of 18, by debs3759

Posted on 2024-03-23, 17:36

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It's an Intel, but I can't tell from the marking which model or speed. Is there no label on the edge of the heatsink?

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Reply 2 of 18, by BitWrangler

Posted on 2024-03-23, 17:36

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I am not real expert at this, but wanna say that rounder corners on the cover make it an intel, by the fact it's not so close to the pins, smaller size, it's a die shrink so DX2, has a couple of key pins missing vs common Dx2 so maybe overdrive??? Mainly just guessing though.

Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.

Reply 3 of 18, by Robin4

Posted on 2024-03-23, 17:37

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Probably a regular 66Mhz one.

~ At least it can do black and white~

Reply 4 of 18, by Shponglefan

Posted on 2024-03-23, 17:39

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If you have a box cutter and a mallet, these heatsinks aren't too difficult to remove.

You just insert the box cutter blade between the heatsink and CPU. Then gently tap it until the heatsink comes off.

I've done this successfully with a few stubborn heatsinks.

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Pentium 4 Multi-OS Build
486 DX4-100 with 6 sound cards
486 DX-33 with 5 sound cards

Reply 5 of 18, by Grosvince

Posted on 2024-03-23, 19:38

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So. It was a dx2-66. SX744.

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Reply 6 of 18, by paradigital

Posted on 2024-03-23, 19:55

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Christ, that really wasn’t worth the effort!

Reply 7 of 18, by debs3759

Posted on 2024-03-23, 20:00

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Oops!

See my graphics card database at www.gpuzoo.com
Constantly being worked on. Feel free to message me with any corrections or details of cards you would like me to research and add.

Reply 8 of 18, by rasz_pl

Posted on 2024-03-23, 20:05

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Open Source AT&T Globalyst/NCR/FIC 486-GAC-2 proprietary Cache Module reproduction

Reply 9 of 18, by BitWrangler

Posted on 2024-03-23, 20:08

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Merde alors, we didn't want that to happen.

Everyone check the calibration stickers on your mallets are up to date, don't want it giving you an 11 when you asked for a 3.

Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.

Reply 10 of 18, by PD2JK

Posted on 2024-03-23, 22:06

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Well... at least the pins weren't bent.

The one in the bottom left area included, it only tipped.

i386 16 ⇒ i486 DX4 100 ⇒ Pentium MMX 200 ⇒ Athlon Orion 700 | TB 1000 ⇒ AthlonXP 1700+ ⇒ Opteron 165 ⇒ Dual Opteron 856

Reply 11 of 18, by Shponglefan

Posted on 2024-03-23, 22:16

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BitWrangler wrote on 2024-03-23, 20:08:

Everyone check the calibration stickers on your mallets are up to date, don't want it giving you an 11 when you asked for a 3.

I said gently tap it! Gently!

😢

Pentium 4 Multi-OS Build
486 DX4-100 with 6 sound cards
486 DX-33 with 5 sound cards

Reply 12 of 18, by CoffeeOne

Posted on 2024-03-23, 22:20

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Grosvince wrote on 2024-03-23, 19:38:

So. It was a dx2-66. SX744.

evil curiosity

Reply 13 of 18, by megatron-uk

Posted on 2024-03-23, 23:59

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That's the kind of force my wife would have used if someone mentioned there was a slight possibility of a live spider under the heatsink....

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Reply 14 of 18, by luckybob

Posted on 2024-03-24, 02:19

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its supposed to be TAPPY TAP TAP..

Not beat the shit out of it like it fucked your girlfriend...

At least it was only a DX2-66. I guess.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 15 of 18, by Trashbytes

Posted on 2024-03-24, 05:07

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luckybob wrote on 2024-03-24, 02:19:

its supposed to be TAPPY TAP TAP..

Not beat the shit out of it like it fucked your girlfriend...

At least it was only a DX2-66. I guess.

It should have kept its pins outta the wrong socket.

Reply 16 of 18, by Sphere478

Posted on 2024-03-24, 05:33

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I have two dx4 with that bottom.

Btw, next time, put flame on the heatsink. It will pop right off when hot

Sphere's PCB projects.
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Sphere’s socket 5/7 cpu collection.
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SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
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Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 17 of 18, by CoffeeOne

Posted on 2024-03-24, 06:49

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PD2JK wrote on 2024-03-23, 22:06:

Well... at least the pins weren't bent.

The one in the bottom left area included, it only tipped.

https://www.youtube.com/watch?v=UijhbHvxWrA

Reply 18 of 18, by Dan386DX

Posted on 2024-03-24, 07:19

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PD2JK wrote on 2024-03-23, 22:06:

Well... at least the pins weren't bent.

The one in the bottom left area included, it only tipped.

🤣

90s PC: IBM 6x86 MX PR 300. TNT2 M64.
Boring modern PC: i7-12700, RX 7800XT.
Fixer upper project: NEC Powermate 486SX/25

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