Latitude D510 motherboard dead...

Hot-swapping and Boot-Block flash & Boot block flash and floppy support
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som1dies2nite
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When powered with the power brick, the power button just blinks 3 seconds at a time. It will not boot, no fan, no drive and it will no go into BIOS as well. Another weird thing...The charging LED doesnt light up with battery installed.
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NickS
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Did you flash the BIOS just before this happened? Some laptop BIOSes include a keyboard controller BIOS and the keyboard controller is often also used for power control.
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som1dies2nite
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No I did not. Is the BIOS chip the same chip as the EEPROM or are they completely separate?
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NickS
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The EEPROM contains the system BIOS, but if you have (fdor example) a Hitachi H8 as a KBC, that is often reprogrammable with its own firmware too. That firmware may be included in the manufacturer's BIOS flash package. IIRC, you'll also find in the Notebooks section a couple of sticky messages warning about unexpected reasons why flashing may kill a laptop e.g. flashing with both memory slots full.
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som1dies2nite
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NickS - Are you familar with Dell laptops? Would the security chip that Dell has on laptops the same chip that contain the BIOS? The chip is 24LC04.
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NickS
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No, the 24LC04 is too small - 4KB.
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som1dies2nite
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So the 24LC04 is the sercurity chip and saves settings on it. The BIOS chip is a different chip in all?
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NickS
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som1dies2nite wrote:The BIOS chip is a different chip in all?
Yes. It could be something like 29F010 to 29F040. However, the BIOS may instead be included in something like a Intel i82802 Firmware Hub (FWH) device which provides 4Mbits for firmware.
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som1dies2nite
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NickS, the security chip in the D510 is 24C04 or something similar starting with 24xxx but havent seen 29F010? What type of chip is that? The inte i82802 chip I believe is not the BIOS chip but a chip that uses the intel drivers for SMBus.
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NickS
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som1dies2nite wrote:NickS, the security chip in the D510 is 24C04 or something similar starting with 24xxx but havent seen 29F010? What type of chip is that?
Google for 29F010: "29F010 Datasheet - 1 Megabit (128 Kx 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory"
The inte i82802 chip I believe is not the BIOS chip but a chip that uses the intel drivers for SMBus.
Google for "Firmware hub": "The Intel® 82802 firmware hub (FWH) discrete component is compatible with several Intel chipset platforms and a variety of applications."
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