According to my sources a Compaq Presario 4090us is supposed to use an FIC AZ31 motherboard.
FIC = First International Computer, Inc.)
I don't have a motherboard manual available, but MAY have a motherboard layout.
Supporting Data:
Specifications from HP Support: (HP bought out Compaq)
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00009310&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=926351) Processor:
AMD Duron 900
Maximum Frequency Rate: 900MegaHertz
Front Side Bus: (FSB) 200MHz
Voltage: 1.6 Volts (DC)
Wattage used at maximum capability: 36.5 Watts
Part Number: (Top of Processor case. Heatsink, and thermal paste removed)
D900AUT1B
http://en.wikipedia.org/wiki/List_of_AMD_Duron_microprocessors#Duron_.22Spitfire.22_.28Model_3.2C_180_nm.292) Ram Memory:
Maximum Total Amount: 768MB
Maximum Amount for EACH ram slot: 256MB
SDR Sdram at 100MHz (PC100)
[Note* SDR Sdram is Single Data Rate Sdram, ram memory. Misnomer of just naming it Sdram is incorrect. All ram memory from SDR up to DDR3, IS Sdram]
3) Harddrive: 30B IDE harddrive. Should be a Quantum Fireball LCT20. (Part Number: QM30000-LD-A)
4) Motherboard Chipset: Sources state that it's a VIA KT133 chipset.
[Chip and Chipset are slang terms for I.C., or Integrated Circuit]
http://en.wikipedia.org/wiki/VIA_chipsets#Slot_A_and_Socket_AAs you can see in the chart reading across from KT133, this chipset supports AP graphics cards that are 4X. Same thing is stated in the specifications from HP Support.
5) The HP Support specifications also state that the mobo (MOtherBOard) has one Primary IDE header for an IDE harddrive, one Secondary IDE header for an IDE optical drive, and one IDE header for a Floppy Disk drive.
Motherboard layout for an FICAZ34 mobo, which I believe is the same, in an additional comment to follow.
Yep I read the previous comments.
The problem is NOT with your links, it is with HP's non specific instructions using a totally different PC in the videos.
HP and Compaq seem to revel in changing how to get inside and how to remove the front panels, etc with every generation of their desktops.
If you don't happen to see the correct tab, lever, or whatever they chose to use, and move it the correct direction good luck removing the front covers so you can change a CD/DVD or even get inside the case.
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