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digitaleos
Joined: 05 Apr 2006
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Location: Beijing, China
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 Posted: Sun Apr 23, 2006 12:35 pm Post subject: 49G2988--IBM 80486DX2-50 overdrive processor (FRU92F0147) |
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I got a 49G2988--IBM 80486DX2-50 overdrive processor (FRU92F0147).
It seems a much rare CPU.
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Sun Apr 23, 2006 12:44 pm Post subject: |
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I haven't seen one like that before, that looks nice. How do you know it's a 486DX2-50 without it saying so on the top?
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fRaSsL
Joined: 31 Mar 2003
Posts: 1570
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| Posted: Sun Apr 23, 2006 1:00 pm Post subject: |
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It's most likely not a ODP, but a OEM 486 with heatsink.
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sun Apr 23, 2006 1:27 pm Post subject: |
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I was going to say it looks like an oem marked heatsink. I have an identical looking one with no markings on top. I am about to take the heatsink off.
digitaleos, can you post a picture of the bottom please? |
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digitaleos
Joined: 05 Apr 2006
Posts: 20
Location: Beijing, China
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| Posted: Sun Apr 23, 2006 1:32 pm Post subject: |
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My friend, titi88, who is a very seasoned CPU collector give me a table as following, this is IBM CPU table,
IBM part number Package Description
03H4831 80486BL3 20/60
03H4938 Ceramic PGA 80486DX2-50
03H4939 Ceramic PGA 80486DX2-66
03H8404 Ceramic PGA 80486 25/50? (marked 03H8343 on the back)
03H8585 Ceramic PGA 80486 25/50? (marked 03H8343 on the back)
23F7189 80386DX
26H6760 132-pin QFP 80486DX4-75
33G0392 100-pin QFP 486SLC2 25/50 (?)
33G0395 100-pin QFP 486SLC2-66 (?)
33G0400 100-pin QFP 486SLC2
49G2988 Ceramic PGA with heatsink 80486DX2-50 overdrive processor (FRU92F0147)
50G3588 100-pin QFP 80486 in 80386 package 20/60 (?)
50G3589 100-pin QFP 80486DLC2-66
50G6663 80486SLC2-66, was used on Make it 486 upgrade board
50G7261 80486SLC2-50 (?)
50G7262 100-pin QFP 80486SLC on Evergreen 286 upgrade module
50G6950 80486SLC2-50
51F1784 PGA in aluminium case 80386DX-20
63F7615 PGA in aluminium case 80386
63G9145 Ceramic PGA 80486DX-33 (PGA)
63G9560 80486BL3 20/60 (?)
64G2844 Lightning 486 processor
64G2845 132-pin QFP 80486 CPU (33 MHz?)
92F0100 80487
92F0147 Ceramic PGA with heatsink 80486DX2-50 overdrive processor
92F2582 Ceramic PGA with heatsink 80486DX2-66 overdrive processor
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sun Apr 23, 2006 1:38 pm Post subject: |
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| it is a DX2-50 .. technically it uses overdrive technology, but it is not referred to as an overdrive cpu. It is a DX2-50, clock doubled 25Mhz to 50Mhz. |
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Sun Apr 23, 2006 1:40 pm Post subject: |
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That's a useful chart to have. IBM processor specs are not always easy to find  There ahve been questions about FRU numbers before and nobody ever has a complete list, but every list helps anyone who is interested to compile a larger one (I'm going to be doing just that soon, going through this and other forums as well as searching the web for info to p[ut in one place). Thanks for posting it here.
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digitaleos
Joined: 05 Apr 2006
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Location: Beijing, China
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digitaleos
Joined: 05 Apr 2006
Posts: 20
Location: Beijing, China
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| Posted: Sun Apr 23, 2006 1:49 pm Post subject: |
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| JAC wrote: | | it is a DX2-50 .. technically it uses overdrive technology, but it is not referred to as an overdrive cpu. It is a DX2-50, clock doubled 25Mhz to 50Mhz. |
Hi, JAC, could you tell me if it is rare?
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JAC
Joined: 24 Jul 2005
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| Posted: Sun Apr 23, 2006 1:52 pm Post subject: |
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| Yes, it is. I would call it not common. |
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Mixeur
Joined: 06 Jan 2005
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Location: Sochaux, France
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