Archived from groups: alt.comp.hardware.overclocking (More info?)
I recently did an upgrade and series of mods at the same time to a
successfully opverclocked system that went quite sour for a while.
System was an Abit IC7 (i875p) and a Pentium 4 2.6c processor with a
Thermalright 900u cooler, northbridge cooler/fan, (3) WD 120GB IDE hard
drives, Radeon 9700pro and so on in a LianLi case.
I swapped out the Thermalright air cooler for a Swiftech water cooler.
Swapped the P4 2.6c for a 2.8e CPU and swapped the three 120GB drives for
two 250GB SATA driver in RAID-1 for data security.
Old system did 3256Mhz (250Mhz FSB) with two sticks of XMS3500 memory that
easily did 2-2-2-6 at 200Mhz (5:4) with 1.61v. Temps (with a -8º correction
for temp inaccuracy), system ran at about 38ºC idle, 46ºC working and 58ºC
running Prime and Folding.
Newer System hardly did 3360Mhz (240Mhz FSB) at 1.44v and realistically more
like 3220 (230Mhz FSB) at the same voltage more or less and ran an easy 5 or
8 degrees higher in temps WITH the new water cooler. I assumed something was
wrong.
The new system was also having some serious issues with posting again from a
cold start!
I swapped back to my older P4 2.6c and all returned back to normal AND temps
are at least 5 or 6 degrees cooler then it was at 32ºC idle, 44ºC working
and 52ºC running Prime and Folding. This is more then 10ºC cooler then the
P4E that really didn't successfully overclock all that much.
I'm keeping the older P4C and adding a second radiator (Swiftech MCR80-F1)
and returning the Northbridge cooler (Swiftech) that ripped BOTH hold down
cleats out of the board!! Be careful, the salesmen said I was not the first
Abit IC7 owner that had the hooks fail under stress. The NB doesn't get all
that hot and easily does 250Mhz with a Thermaltech 40mm cooler and fan.
I quieted the case with sound absorption material and a Zalman PSU and a 6
fan speed controller. Keeping all the fans turned down, the loudest thing
from the computer are the hard drives.
I obviously got a bad overclocking chip; it was a retail box version. I put
onto a Abit IS7 (?) with the Thermalright heatsink and even at stock speed
its running 56ºC at idle according to the BIOS, obviously that Abit model
isn't correct either! CPU is plenty stable at 2800Mhz. If funny but by SPD
on that board (i865 chipset) the 2.8e runs at 204.5Mhz fsb for 2863Mhz at
1.37v, and quite nicely. Just my older 2.6c runs faster and cooler. My buddy
has a 2.4c running at 3420 (285fsb) very well. Big memory bandwidth and
great 3D performance from an overclocked Radion 9700Pro like mine.
Just thought I'd share, people have been very helpful in the last couple of
weeks. Thanks.
I recently did an upgrade and series of mods at the same time to a
successfully opverclocked system that went quite sour for a while.
System was an Abit IC7 (i875p) and a Pentium 4 2.6c processor with a
Thermalright 900u cooler, northbridge cooler/fan, (3) WD 120GB IDE hard
drives, Radeon 9700pro and so on in a LianLi case.
I swapped out the Thermalright air cooler for a Swiftech water cooler.
Swapped the P4 2.6c for a 2.8e CPU and swapped the three 120GB drives for
two 250GB SATA driver in RAID-1 for data security.
Old system did 3256Mhz (250Mhz FSB) with two sticks of XMS3500 memory that
easily did 2-2-2-6 at 200Mhz (5:4) with 1.61v. Temps (with a -8º correction
for temp inaccuracy), system ran at about 38ºC idle, 46ºC working and 58ºC
running Prime and Folding.
Newer System hardly did 3360Mhz (240Mhz FSB) at 1.44v and realistically more
like 3220 (230Mhz FSB) at the same voltage more or less and ran an easy 5 or
8 degrees higher in temps WITH the new water cooler. I assumed something was
wrong.
The new system was also having some serious issues with posting again from a
cold start!
I swapped back to my older P4 2.6c and all returned back to normal AND temps
are at least 5 or 6 degrees cooler then it was at 32ºC idle, 44ºC working
and 52ºC running Prime and Folding. This is more then 10ºC cooler then the
P4E that really didn't successfully overclock all that much.
I'm keeping the older P4C and adding a second radiator (Swiftech MCR80-F1)
and returning the Northbridge cooler (Swiftech) that ripped BOTH hold down
cleats out of the board!! Be careful, the salesmen said I was not the first
Abit IC7 owner that had the hooks fail under stress. The NB doesn't get all
that hot and easily does 250Mhz with a Thermaltech 40mm cooler and fan.
I quieted the case with sound absorption material and a Zalman PSU and a 6
fan speed controller. Keeping all the fans turned down, the loudest thing
from the computer are the hard drives.
I obviously got a bad overclocking chip; it was a retail box version. I put
onto a Abit IS7 (?) with the Thermalright heatsink and even at stock speed
its running 56ºC at idle according to the BIOS, obviously that Abit model
isn't correct either! CPU is plenty stable at 2800Mhz. If funny but by SPD
on that board (i865 chipset) the 2.8e runs at 204.5Mhz fsb for 2863Mhz at
1.37v, and quite nicely. Just my older 2.6c runs faster and cooler. My buddy
has a 2.4c running at 3420 (285fsb) very well. Big memory bandwidth and
great 3D performance from an overclocked Radion 9700Pro like mine.
Just thought I'd share, people have been very helpful in the last couple of
weeks. Thanks.
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