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PostPosted: Sun May 12, 2002 12:55 am 
I have an old Compaq Presario 4112 that I am upgrading just for the hell of it. It has a socket 7 Pentium and I would like to put another processor in it. But, however Since its a compaq, the bios screen does not show so I am unable to locate the chipset this way. And I'm not sure what to look for on the board. My question does anyone have an idea how to identify this board? The numbers I can locate are Model: MD4 5600 Serial: TB 68117108. There is one chip that reads: PCLEST SB82437vx L6254032 SU085. And another chip that reads: PCLEST S882371S8 L6270292 SU093. It has ESS audi drive built in sound and S3 Trio64v+ Video. There is also a chip that reads: SMC FDC37C931PM A9625-B5561-AIC 6T84973-3. I would like to know how to upgrade the bios for this board and how to set the jumpers for a better processor. By the processor there is a CLK Multi jumper with 6 pins. 2 rows of 3's. Any help would be appreciated.
Thank You,
Lance Miller


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PostPosted: Sun May 12, 2002 2:43 am 
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Mobo-fu Master
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Joined: Sun May 06, 2001 12:01 am
Posts: 37463
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ftp://ftp.compaq.com/pub/supportinforma ... ev4_us.pdf

not sure if it will take MMX pentium CPUs, you'd have to ask our Compaq expert on this (Hardware Junkie).

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 Post subject: Basic info
PostPosted: Sun May 12, 2002 1:23 pm 
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Your system is equiped with a Pentium 120 processor and 16 MB EDO RAM, (8MB on system board) expandable to 72 MB (60ns EDO or fast page, Tin Lead SIMM required)

The board is capable of supporting up to a 200Mhz non-MMX CPU.

============================================

Jumpers:

P7
Replacement Battery Connector

============================================

Bus Speed Select - Pin P8
1-2 = 50 MHz CPU External Bus Frequency

2-3 = 60 MHz CPU External Bus Frequency

3-4 = 66 MHz CPU External Bus Frequency

4-5 = 55 MHz CPU External Bus Frequency (Reserved)

============================================

P9 CPU Clock

A1-A2
B1-B2
× 1.5

A2-A3
B1-B2
× 2.0

A2-A3
B2-B3
× 2.5

A1-A2
B2-B3
× 3.0

============================================

P11 CMOS Clear
1-2 (Default)
Open (Remove jumper for 10 seconds and reinstall to clear CMOS )

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