O
OraceHorse
Hello.
I'm really new to homebuilding so I would really appreciate some advice.
I've recent;y put together a computer based around a Jeyway 694AS
motherboard which I bought second hand. It came with a Pentium III 700Mhz
and 256MB RAM.
The computer was very unstable. Giving Windows XP blue stop screens every
5 -15 mins so I decided to reduce the processor speed.
The bus thing on the motherboard was set at 133Mh so I lowered it to 100Mh
and made no other change.
This reduced the speed of the RAM which was at 133Mhz but by defauly it was
lowered to the bus speed of 100Mhz.
On boot up the processor was now reported at a Pentium III 550e Mhz
Anyway the computer was much more stable. I had it switched on all day with
no crashes.
So I decided to try Prime95s 'Torture Test.
However this always fails after a few mins by either hanging, getting a blue
screen, or the error 'fatal error - rounding was 0.49********, expected less
than 0.4'
The problem I have is there are so many variables which I don't properly
understand and I don't know which ones to change.
For instance:-
1) The RAM DIMMS have 133Mhz written on them. But when I lowered the
motherboard bus to 100MHz the memory speed was lowered by default. It is now
set at 100Mhz. The same as the 'host bus'. Should I raise the memory back
to 133?
2) Is the problem with the processor or with faulty memory?
3) By how much should I increase the core CPU voltage if at all?
4) Should I try lowering the bus speed to 66Mhz and underclock the
processor?
I'm really new to homebuilding so I would really appreciate some advice.
I've recent;y put together a computer based around a Jeyway 694AS
motherboard which I bought second hand. It came with a Pentium III 700Mhz
and 256MB RAM.
The computer was very unstable. Giving Windows XP blue stop screens every
5 -15 mins so I decided to reduce the processor speed.
The bus thing on the motherboard was set at 133Mh so I lowered it to 100Mh
and made no other change.
This reduced the speed of the RAM which was at 133Mhz but by defauly it was
lowered to the bus speed of 100Mhz.
On boot up the processor was now reported at a Pentium III 550e Mhz
Anyway the computer was much more stable. I had it switched on all day with
no crashes.
So I decided to try Prime95s 'Torture Test.
However this always fails after a few mins by either hanging, getting a blue
screen, or the error 'fatal error - rounding was 0.49********, expected less
than 0.4'
The problem I have is there are so many variables which I don't properly
understand and I don't know which ones to change.
For instance:-
1) The RAM DIMMS have 133Mhz written on them. But when I lowered the
motherboard bus to 100MHz the memory speed was lowered by default. It is now
set at 100Mhz. The same as the 'host bus'. Should I raise the memory back
to 133?
2) Is the problem with the processor or with faulty memory?
3) By how much should I increase the core CPU voltage if at all?
4) Should I try lowering the bus speed to 66Mhz and underclock the
processor?