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IS7, p4 2.8c, Kingston HyperX pc3500 Overclocking?

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July 1, 2003 6:07:10 PM

I have the following setup below. I want to overclock this baby to basically as much as I SAFELY can, but I don't know what all the voltages for the core, dram, etc. should be.. and I also don't know what multipliers and fsb speeds to use...?

Along with that I don't know what timings I shuold use on my memory.. so if some people can post their overclocking settings for me with the same exact setup or close to it, I would appreciate it. I don't want to go changing my voltages and timings and burn something up.. lol

Please see my profile below for all my system info..


__________________
-----HARDWARE COMPONENTS-----
P4 2.8c @ 2.8ghz, Abit IS7, Kingston HyperX pc3500 (2 x 512mb), IBM Deskstar 75gxp 60 gig, Hercules 3d Prophet II GTS 64mb, Sound Blaster Live MP3, Pioneer 16x DVD, generic 45x cd-rom
-----CASE/OTHER COMPONENTS-----
Thermaltake Xaser III v2000a Case, Antec TrueControl 550w PSU, Thermalright SLK-900u, Vantec Tornado HSF, Artic Silver 3
-----TEMPS/SPEEDS/OC'ing in MBM 5.0-----
Clock = 2.8ghz (no overclock)
FSB = 200mhz
CPU Temps = 40c idle/65c load in Prime95
Case Temps = 35c idle/47c load in Prime95
PWM Temps = 37c idle/68c load in Prime95
Ambient Temps = 21c idle/21c in Prime95
-----SOFTWARE-----
Windows XP Professional SP1
Motherboard Monitor 5


NEW SYSTEM:
P4 2.8c (800fsb), Abit IS7, Kingston HyperX PC3500 (2 x 512mb), IBM Deskstar (60 gig @ 7200rpm)
OLDER SYSTEM:
P3 850mhz (100fsb), Asus CUV4X, 620mb Micron PC133, WD 40gig 7200rpm
a b à CPUs
a b K Overclocking
July 2, 2003 12:55:48 AM

You'll want better cooling before you overclock. You should be able to get to around 250MHz bus with a core voltage of 1.65v, if you can cool it enough. Give or take 10MHz bus...

Now, 250/200 would work with the 5:4 ratio. At having the memory operating at PC3200 speed like that would probably allow slightly faster timings.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
July 2, 2003 1:43:58 AM

what is the math equation that you use to figure out 5:4 and 3:2 ratios? I am not very good in math.. lol

So if for instance I wanted to figure out what the ram speed would be in a 5:4 ratio if I knew that maybe I wanted to take my FSB up to like 271mhz ... how would I figure this out with math equation?

My new case and cooling should be in by the end of this week.. I got the Thermaltake Xaser III with the Vantec Tornado 92mm fan... it's going to be LOUD, but cool..


NEW SYSTEM:
P4 2.8c (800fsb), Abit IS7, Kingston HyperX PC3500 (2 x 512mb), IBM Deskstar (60 gig @ 7200rpm)
OLDER SYSTEM:
P3 850mhz (100fsb), Asus CUV4X, 620mb Micron PC133, WD 40gig 7200rpm
Related resources
a b à CPUs
a b K Overclocking
July 2, 2003 5:12:34 AM

5:4 CPU:RAM at 271MHz CPU bus...271/5*4=216MHz.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
July 2, 2003 5:27:37 AM

would this 271fsb 5:4 ratio be faster or would it be faster using the 1:1 ratio and keeping the FSB at 216mhz?
This is without chaging the stock Ram voltages or timings right?

What do you think the max fsb speed, the max voltages, and the max timings my HyperX pc3500 could handle? I have 2 x 512 modules by the way running in Dual Channel?
I don't want to blow them up you know..

NEW SYSTEM:
P4 2.8c (800fsb), Abit IS7, Kingston HyperX PC3500 (2 x 512mb), IBM Deskstar (60 gig @ 7200rpm)
OLDER SYSTEM:
P3 850mhz (100fsb), Asus CUV4X, 620mb Micron PC133, WD 40gig 7200rpm
a b à CPUs
a b K Overclocking
July 2, 2003 5:47:21 AM

Although your memory performance would surely suffer a small amount, your CPU performance would be increased by so high an amount that it would more than make up the difference.

The PC3500 modules you are using are rated at very long Cas Latency cycles in order to assure they work at the advertised 218MHz. Using smaller Cas Latency settings increases performance but can cause stability problems. It's probably better to use your modules at 200MHz and Cas 2-3-2-6, than to use it at 216MHz Cas 3-3-3-8, because of the faster response time. That is, as long as it's stable.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
July 2, 2003 6:40:53 AM

Hey Crashman.. I know that you know your stuff.. check out my thread on the Abit boards.. my name is Squale.. look at the timings and benchmarks that I am getting and comment on what you think thus far.. I have oc'ed anything yet..
<A HREF="http://forum.abit-usa.com/showthread.php?s=&postid=1138..." target="_new">http://forum.abit-usa.com/showthread.php?s=&postid=1138...;/A>

Thanks man

NEW SYSTEM:
P4 2.8c (800fsb), Abit IS7, Kingston HyperX PC3500 (2 x 512mb), IBM Deskstar (60 gig @ 7200rpm)
OLDER SYSTEM:
P3 850mhz (100fsb), Asus CUV4X, 620mb Micron PC133, WD 40gig 7200rpm
a b à CPUs
a b K Overclocking
July 2, 2003 4:42:35 PM

I think it's time someone figured out how to make modules that support lower latencies...

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
July 2, 2003 4:44:59 PM

you think it's the latencies that are holding me back from the f1 GAT settings?

What do you think the F1 sets your Ram timings to when you enable it?


NEW SYSTEM:
P4 2.8c (800fsb), Abit IS7, Kingston HyperX PC3500 (2 x 512mb), IBM Deskstar (60 gig @ 7200rpm)
OLDER SYSTEM:
P3 850mhz (100fsb), Asus CUV4X, 620mb Micron PC133, WD 40gig 7200rpm
!