Archived from groups: alt.sys.pc-clone.compaq (More info?)
I have a Compaq Presario 5225 computer. It came with an AMD K6-2 380
processor. Recently I replaced the processor with an AMD K6-2 533
processor I obtained off of EBay. It works except that the computer
still thinks it is a 380.
From reading other posts, it seems I need to change the jumper
settings. I'll need some help in doing this, as I have no idea what
changes to make. The user manual from Compaq has no info about jumper
settings. In fact, they say in the manual that if you want to upgrade
the processor, an authorized Compaq service technician should do it.
They want to keep their customers dumb and happy, I suppose. There was
also no sticker or label inside the case which provided jumper
information.
I downloaded and ran the Everest Home Edition, and here is what it
tells me:
CPU Type: AMD K6-2, 380 MHz (4 x 95)
Motherboard Name: Compaq Compaq PC
Chipset: VIA VT82C598 Apollo MVP3
In the DMI section under Processor, it tells me this:
Manufacturer: AuthenticAMD
Version: AMD-K6-2
External Clock: 100 MHz
Maximum Clock: 550 MHz
Current Clock: 380 MHz
On the outside of both the old 380 chip and the new 533 chip was
stamped the following:
2.2V Core / 3.3 V I/O
But Everest tells me that the Core Voltage on the new chip is 2.2-2.4
V.
The 380 chip has the letters AFR after the AMD-K6-2/380, but the 533
chip has the letters AFX after the AMD-K6-2/533. The info on EBay
indicated that the chip could run at 550 MHz even though it is marked
533 MHz.
I popped the case open and examined the motherboard for the jumpers.
I'll attempt to describe the layout here. When the side of the computer
case containing the motherboard is removed and laid flat, you are
looking at the board from top to bottom. From this view, the jumpers
next to the Socket 7 CPU are on the right side.
On the lower right side of the socket, there are two jumpers with three
pins each, and they run parallel to the CPU socket. The innermost jumper
(closest to the CPU) is labeled JCK2. The one immediately to its right
is labeled JCK1. Each jumper has three pins. JCK2 has the bottom two
pins jumpered, while JCK1 has the top two pins jumpered.
Then as we move up and a little more to the right, there is JCK3, a
jumper with only two pins, and it is jumpered. I assume nothing needs
to be done to this one.
Above it, there is a round cylindral thing sticking out, and then above
it there are three more jumpers. These three have only two pins each,
and unlike the others, they run perpendicular to the CPU. They are
located at the top right side of the CPU socket. From bottom to top,
and from right to left, they are labeled 1 - 2, JP1 - <blank>, and 5 -
6. The bottom jumper (labeled 1 - 2 from right to left) has a jumper
pin on it, as does the top jumper (labeled 5 - 6 from right to left).
But the middle jumper (labeled JP1) is open and unjumpered.
So my question is what changes do I need to make in order for my
computer to realize that it now has a 533 CPU in it? And can it run at
550? The bus is 95 Mhz on the motherboard.
While I'm at it, I have another question. The CPU fan on top of the
heat sink is made by Aavid, model AFB0512MA. It also has DC 12 and 0.15
A printed on it's label. Is this fan sufficient enough to properly cool
this faster processor? It is the same fan that came with the computer.
Thanks in advance.
--
Road_Man
I have a Compaq Presario 5225 computer. It came with an AMD K6-2 380
processor. Recently I replaced the processor with an AMD K6-2 533
processor I obtained off of EBay. It works except that the computer
still thinks it is a 380.
From reading other posts, it seems I need to change the jumper
settings. I'll need some help in doing this, as I have no idea what
changes to make. The user manual from Compaq has no info about jumper
settings. In fact, they say in the manual that if you want to upgrade
the processor, an authorized Compaq service technician should do it.
They want to keep their customers dumb and happy, I suppose. There was
also no sticker or label inside the case which provided jumper
information.
I downloaded and ran the Everest Home Edition, and here is what it
tells me:
CPU Type: AMD K6-2, 380 MHz (4 x 95)
Motherboard Name: Compaq Compaq PC
Chipset: VIA VT82C598 Apollo MVP3
In the DMI section under Processor, it tells me this:
Manufacturer: AuthenticAMD
Version: AMD-K6-2
External Clock: 100 MHz
Maximum Clock: 550 MHz
Current Clock: 380 MHz
On the outside of both the old 380 chip and the new 533 chip was
stamped the following:
2.2V Core / 3.3 V I/O
But Everest tells me that the Core Voltage on the new chip is 2.2-2.4
V.
The 380 chip has the letters AFR after the AMD-K6-2/380, but the 533
chip has the letters AFX after the AMD-K6-2/533. The info on EBay
indicated that the chip could run at 550 MHz even though it is marked
533 MHz.
I popped the case open and examined the motherboard for the jumpers.
I'll attempt to describe the layout here. When the side of the computer
case containing the motherboard is removed and laid flat, you are
looking at the board from top to bottom. From this view, the jumpers
next to the Socket 7 CPU are on the right side.
On the lower right side of the socket, there are two jumpers with three
pins each, and they run parallel to the CPU socket. The innermost jumper
(closest to the CPU) is labeled JCK2. The one immediately to its right
is labeled JCK1. Each jumper has three pins. JCK2 has the bottom two
pins jumpered, while JCK1 has the top two pins jumpered.
Then as we move up and a little more to the right, there is JCK3, a
jumper with only two pins, and it is jumpered. I assume nothing needs
to be done to this one.
Above it, there is a round cylindral thing sticking out, and then above
it there are three more jumpers. These three have only two pins each,
and unlike the others, they run perpendicular to the CPU. They are
located at the top right side of the CPU socket. From bottom to top,
and from right to left, they are labeled 1 - 2, JP1 - <blank>, and 5 -
6. The bottom jumper (labeled 1 - 2 from right to left) has a jumper
pin on it, as does the top jumper (labeled 5 - 6 from right to left).
But the middle jumper (labeled JP1) is open and unjumpered.
So my question is what changes do I need to make in order for my
computer to realize that it now has a 533 CPU in it? And can it run at
550? The bus is 95 Mhz on the motherboard.
While I'm at it, I have another question. The CPU fan on top of the
heat sink is made by Aavid, model AFB0512MA. It also has DC 12 and 0.15
A printed on it's label. Is this fan sufficient enough to properly cool
this faster processor? It is the same fan that came with the computer.
Thanks in advance.
--
Road_Man
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