Blank Intel 486?

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tlccomp



Joined: 11 May 2006
Posts: 1212
Location: Southeast Wisconsin, USA

PostPosted: Sun Sep 10, 2006 8:28 am    Post subject: Blank Intel 486? Reply with quote

Came across this chip the other day. Received without a heatsink.
From all apperances it appears to be a 486DX2/66 SX911.
Has anyone ever see a blank Intel CPU? My first thought is it might be a fake. The blank chip is thicker by .091 mm.

Blank?



Bottom of a 486DX2-66 SX911
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Marcin



Joined: 02 Jan 2005
Posts: 8519
Location: Poland

PostPosted: Sun Sep 10, 2006 10:13 am    Post subject: Reply with quote

I'm almost sure about that is Intel 486 Overdrive DX 25 :


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JAC



Joined: 24 Jul 2005
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PostPosted: Sun Sep 10, 2006 10:23 am    Post subject: Reply with quote

oh good call Marcin! - but your chip has a longer gold trace in the top left. This is closer...

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JAC



Joined: 24 Jul 2005
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PostPosted: Sun Sep 10, 2006 10:25 am    Post subject: Reply with quote

.. and no.. I am not taking the heatsink off Very Happy
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tlccomp



Joined: 11 May 2006
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Location: Southeast Wisconsin, USA

PostPosted: Sun Sep 10, 2006 11:07 am    Post subject: Reply with quote

Marcin wrote:
I'm almost sure about that is Intel 486 Overdrive DX 25 :



Marcin,
Is yours an overdrive?
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gshv



Joined: 01 Feb 2003
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Location: Fairfax, VA USA

PostPosted: Sun Sep 10, 2006 11:59 am    Post subject: Reply with quote

It could also be 80486 with integrated heatsink:

http://www.cpu-world.com/CPUs/80486/pictures-Intel-A80486DX2-66.html

That processor has the same lid as on the 80486 overdrive. Although I don't know if it has any markings under the heatsink or not...

Gennadiy
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Marcin



Joined: 02 Jan 2005
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PostPosted: Sun Sep 10, 2006 1:52 pm    Post subject: Reply with quote

Yes that is my Overdrive DX 25. On front side is normal heatsink. Why I suspect that is DX 25 - at end "FCA"
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gshv



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PostPosted: Sun Sep 10, 2006 2:17 pm    Post subject: Reply with quote

I have 486DX2-66 overdrive with "FCA":

http://www.cpu-world.com/images/forum2006/486dx2-66hs.jpg

Gennadiy
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Marcin



Joined: 02 Jan 2005
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PostPosted: Sun Sep 10, 2006 2:21 pm    Post subject: Reply with quote

gshv wrote:
I have 486DX2-66 overdrive with "FCA":

http://www.cpu-world.com/images/forum2006/486dx2-66hs.jpg

Gennadiy

Hmmm I give up ... That is unknown speed for me. I can only propose to test it on motherboard to know only multiplier Smile

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