P4 FSB issue 1:1 vs 4:5

[PHOBOS]

Still in the search for an ideal setup for a new system that falls within the bounds of my bugdet.

I read on a hardware review site where they benched some P4 systems. The 2 systems I will concentrate on will be the 2 P4 2.8 overclocked to 3.5 GHz. Both had an FSB of 1000 MHz now. But one had DDR500 ram @ 1:1 ratio with low timings, the other had DDR400 ram @ 4:5 ratio with aggressive timings.

I noticed that in all the benchmarks the system with DDR400 wasn't to far behind the system with DDR500. This gives me the chance to buy a P4 and overclock it to a 1000MHz FSB without needing DDR500. Reason I say this because DDR500 is only available in like 1 place in South Africa at a ridiculously expensive price, so I would rather go for DDR400 and lose only a little performance.

Here in lies my problem though. I see that the only ratios available are 1:1 , 4:5 and 2:3. This means that runnig my Ram at a default clock of 200MHz, The CPU clock can only be 200MHz(1:1) or 250MHz(4:5) or 300(2:3). Not many options there. 200Mhz is default and not an overclock. 250MHz is what I am aiming for(2.6 @ 250MHz is 3.25GHz - MY GOAL). 300MHz is just overkill and will probably burn everthing.

This means that if I can't get a stable (and cool) overclock to 250MHz FSB , I'm F*****d and left to run it at the default of 200MHz FSB. UNLESS SOMEONE KNOWS SOMETHING THAT I DONT.

Which one of these mobos will you guys recomend for this overclock (bearing in mind it will be a P4c 2.6GHz @ 3.25GHz - hopefully):

1)Gigabyte GA-8S655FX Ultra
2)Gigabyte GA-8PENXP
3)Gigabyte GA-8KNXP
4)Abit IS7
5)Abit IG7-G
6)Abit IG7-MAX3
7)MSI 865PE Neo2 FIS2R (the one with gigabit-lan)
8)MSI 875P Neo
9)Asus P4P800 (865PE)
10)Asus P4C800 (875P)

Any response will be welcome.
Thanks a lot.
PHOBOS


Leader of TEAMPHOBOS

 

[scottchen]

Asus P4C800 is the best, trust me in actual games, if you use async memory you will dramatically decrease the performance. I couldn't really tell the difference between my 3.3G sync and my 3.8 async well i guess 3.8 is pretty goddamn high. But if you have 3.3 sync and 3.3 async there will be big difference in bandwidth. So it's recommended to use syncronized Dram frequency.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

 

[HardWareBoss]

Any OCZ PC4200 yet?

 

[scottchen]

Nope. That really sucks, but the PC4000 copper series does 275mhz at 2.85vdimm i think that's pretty impressive timings 3-4-4-8 of course.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

 

[HardWareBoss]

When do you think you'll hit 4.0 Ghz?

 

[scottchen]

The day i get prometia.

-Intel PIV 2.4C @ 3.84G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 275mhz 3-4-4-8 -Sapphire 9800pro @ 490/780 -SB audigy -80G Maxtor Diamond Plus9 Ultra ATA-133 hdd -450 Enermax PSU

 

[Crashman]

No, I do know something that you probably already knew, but ignored. That is, if you can't run stably at 250MHz FSB, you don't have to go down to 200, you can use something in between. At 245MHz FSB, you'd still have nearly the same performance as 250MHz FSB, for example, and your memory would only be running a few MHz below it's rated speed.

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