Page Created 20. Mars 2002
Overclocking Abit KR7A Raid
We have earlier on tweaked the motherboard
as far as it would go, one of the possible limitations were
the lack of higher memory voltage. We had already voltmodded
the Vcore by soldering a 22kOhm resistor to the Hip 6301 chip,
this resulted in a increase of 0,2V to feed on to the XP1800.
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With 2,05Vcore and maxed out on memory voltage
(2.85V) the system fluctuated on a FSB of 195. We bought the
Thermaltake active memory cooling kit, mounted it on the memory
module and reached a FSB of 200.
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We achieved this speed before the new bios
upgrade arrived. When the bios upgrade came we flashed it
only to find out that it could go to a FSB of 250 but we couldn't
go any higher than the 200. Damn.
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Well the search was on, and one day we found
it, thanks a lot to "Blackice" at the OK.no
forum that led us to the mods4me
site. We will like to point out for you that the graphics
shown on the page with the vmem modding are not correct, the
wrong pins are marked, follow the instructions given in the
text! Well as you can see we performed the modding with a
little twist, in this case just to give us the oppertunity
of turning it off without dismantle it. The voltmod with the
4kOhm resistor gave us an extra 0,35V for the memory for a
total of 3.2V. We were pretty excited when it all worked out
well.
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Mother board |
Abit KR7A-Raid |
CPU |
AMD XP1800
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Cooling |
Watercooled with Koolance |
Memory |
256MB Twinmos PC2100 |
PSU |
Enermax 550W |
Graphics Card |
Leadtek GF3 Ti200 TDH Overclocked |
Hard Drive |
IBM 80GB 120GXP |
Drivers |
Nvidia 27.42
Via 4in1 4.38
|
Programs |
WCPUID version 3.0d
Sisoft sandra v. 2002.1.8.59 |
OS |
Windows XP Pro. 5.01.2600 |
Here are the scores of the mod itself and the results pretty
much speaks for itself.
The memory score was achieved with the module set at cas
2,5, bank int.leave 4, 3,5,3 2T
The performance of the graphics card is highly dependent
of the memoryperformance. This clearly shows in the results
of the overclocked GF3 Ti200
card.
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