500 FSB!!! (250x2)

[BubbaTheHut]

The new bios update (1.8) for my NF7-S allowd me to hit a 250fsb. So i made that my mission in life to hit a a 250 fsb..... and then i did.... i have never head of a fsb this high before. Could i be the highest for AMD chips?

[hitechjb1]

What memory are you using? What ras/cas timing? What Vdimm?
Any Vdd chipset mod? What Vdd voltage?
What chipset cooling?
Is the system stable under 3Dmark01/03?

[OrionRU]

nice!

[BubbaTheHut]

It only goes up to 250. And unless they up the chipset voltage its never gunna happen

[BubbaTheHut]

I have Geil pc3200 but its way underclocked its only runnying at 240 mhz. So good thing i have dddr. Its runing at cas 2. I have a Zulman heat sink in the northbridge with a 40 mm fan and an old p1 cooler on the south bridge. The sough bridge got so hot it burned me so it was time to sink it. The Chip set voltage is at 1.7 (Highest for the board).

[hitechjb1]

Originally posted by BubbaTheHut
I have Geil pc3200 but its way underclocked its only runnying at 240 mhz. So good thing i have dddr. Its runing at cas 2. I have a Zulman heat sink in the northbridge with a 40 mm fan and an old p1 cooler on the south bridge. The sough bridge got so hot it burned me so it was time to sink it. The Chip set voltage is at 1.7 (Highest for the board).

Are you running ASYNC with memory at 240 MHz and FSB at 250 MHz?

Geil PC3200 is rated at 200 MHz. Clocking to 240 MHz is very good overclocking for memory, not underclockded?? What Vdimm (memory voltage) you are using?

[Kunaak]

Oppainter, JCviggen and a few other guys at XS have gotten 250 many times, posted in the bandwidth sticky over at XS.

[EspElement]

at 8rda.com, 2 guys got 250 fsb. he had it at 250*9 tho.
take a look at the forums in there quite a few got to 250 fsb.
but not with a abit NF7, that i know of, Nice job

[BubbaTheHut]

PC3200 is suposed to run at 400 mhz but its running at 250mhz. Are there any board that you can hit a higher FSB? If so what are they.

[james.miller]

no, pc 3200 is NOT suppose to run at 400mhz. it is supposed to run at 200mhzX2 (400mhz total). you are actually running at 250mhzX2 (500mhz total) which is quite an achievement.

break down:

pc2100: 133.33x2
pc2700: 166.66x2
pc3200: 199.99x2
pc3500: 215x2
pc3700: 230x2

[hitechjb1]

Originally posted by BubbaTheHut
PC3200 is suposed to run at 400 mhz but its running at 250mhz. Are there any board that you can hit a higher FSB? If so what are they.

PC3200 is rated to run at memory bus speed of 200 MHz. Data are transferred at the rising and falling edge of the memory bus clock, hence 400 Mb/s for each bit.

Since DDR memory bus has a datapath of 8 byte or 64 bit, so it delivers a bandwidth of 200 x 2 x 8 = 3200 MB/s at 200 MHz memory bus clock frequency. PC3200 stands for the 3200 MB/s max bandwidth when running at 200 MHz.

[hitechjb1]

Originally posted by BubbaTheHut
PC3200 is suposed to run at 400 mhz but its running at 250mhz. Are there any board that you can hit a higher FSB? If so what are they.

If indeed the mb can run at 250 MHz stable, it is faster than 99%+ of what ppl are doing now.

Is the memory running at 250 MHz DDR?

[portorock]

pics and benchiues, we all want to see them, we all need to see them, as AMD fans of course. I want to see what kind of monster it is

[BubbaTheHut]

I will have them as soon as i can. my compurer is off line as for now because my network is down. 3dmard2001se, sandra, and what other benchmarks would you like to see?

[Skiing Squirrel]

very nice FSB man! good job! I need to get some fast ram now!

[K_King]

wow LOL that's a lot

[Bruno]

It'll take a new bios to go past 250.

At least post some Sandra Mem Benches.

[pacino]

Originally posted by Bruno
It'll take a new bios to go past 250.

At least post some Sandra Mem Benches.

Me 2 :)

[The Coolest]

Yea and don't forget a shot of WCPUID/CPU-Z

[mrspec3]

I've done it too

NF7-S rev 1.2 w/ A2 NB
OCZ pc3500EL though

http://members.rogers.com/overclockedguy/251sandra.jpg

Steve

[hitechjb1]

mrspec3:
Any Vdd chipset mod? What Vdd voltage?
What chipset cooling?
Is the system stable under 3Dmark01/03 looping?

[CrashOveride]

Originally posted by The Coolest
Yea and don't forget a shot of WCPUID/CPU-Z

did you mean GCPUID? ;)

[altec]

Originally posted by CrashOveride


did you mean GCPUID? ;)

Nope, I think he means WCPUID...;)

[JungleMan]

I think he means WCPUID also ;)

[altec]

Originally posted by JungleMan
I think he means WCPUID also ;)

Holy Crap! JungleMan a.k.a Zerowing agreed with me! :D :clap:

[hitechjb1]

WCPUID developer's link (http://www.h-oda.com/)

OR

Another link (http://hp.vector.co.jp/authors/VA002374/src/download.html)

[mrspec3]

VDD was 2.1V
Vdimm 3.25V

3dmark....I don't do it. I have a GF2 MX400 so there is no point. I can play games so I figure its the same thing. Problem is though that after 10 mins or so sound usb and nic all die. I think the SB is over heating right now still

NB is cooled with a thermaltake SK-6

[CrashOveride]

well i only said GCPUID because he wrote it and it does essentially the same thing, the only reson i would use WCPUID is because its more widly accepted... wait does GCPUID detect FSB? i forget- that would be antoehr reason lol :-/

[hitechjb1]

Originally posted by mrspec3
VDD was 2.1V
Vdimm 3.25V

3dmark....I don't do it. I have a GF2 MX400 so there is no point. I can play games so I figure its the same thing. Problem is though that after 10 mins or so sound usb and nic all die. I think the SB is over heating right now still

NB is cooled with a thermaltake SK-6

Put a passive heat sink on the SB with good air flow over it would improve stability at high FSB. It may even solve your stability problem. Adding cooling to SB (for sound and HD) is even more important since it usually comes with no cooling, and NB at least has some default cooling.

Pic for passive heat sink for SB cooling (on page 1) (http://forum.oc-forums.com/vb/showthread.php?s=&threadid=187887&pagenumber=1)

I did that and it helps stability, though my FSB is not as high as yours, only around 210+ MHz at default chipset Vdd of 1.53V (measured).

Please try it and let us know, because that may be important for attaining stability at such high FSB (250 MHz as yours).

Which method of chipset set Vdd mod and Vdimm mod are you using?

Do you mean ThermalRight SK-6?

[The Coolest]

I did mean WCPUID, as my proggy doesn't show multiplier or FSB, if you just want to know the CPU speed, then use GCPUID :D

[mrspec3]

Originally posted by hitechjb1


Put a passive heat sink on the SB with good air flow over it would improve stability at high FSB. It may even solve your stability problem. Adding cooling to SB (for sound and HD) is even more important since it usually comes with no cooling, and NB at least has some default cooling.

Pic for passive heat sink for SB cooling (on page 1) (http://forum.oc-forums.com/vb/showthread.php?s=&threadid=187887&pagenumber=1)

I did that and it helps stability, though my FSB is not as high as yours, only around 210+ MHz at default chipset Vdd of 1.53V (measured).

Please try it and let us know, because that may be important for attaining stability at such high FSB (250 MHz as yours).

Which method of chipset set Vdd mod and Vdimm mod are you using?

Do you mean ThermalRight SK-6?

Yes it was the thermalright sk-6...it was late ;)

Here is a pic of my current cooling setup. I am putting the old NB cooer on the SB later
http://members.rogers.com/overclockedguy//NB5.jpg

[hitechjb1]

mrspec3:

Is this a new setup using NF7-S rev 2? I thought you had a NF7-S rev1.2 w/ A2 NB for the 250 MHz FSB, with 2.1V chipset Vdd and 3.25V Vdimm.


Would the SK-6 over the NB too big and interfere with the air flow for CPU cooling.

[v8vega350]

there is a 1.4 bios out for the nf7 2.0 that will let you go to a 300 fsb just thought i would let you know it is beta though

[mrspec3]

Originally posted by hitechjb1
mrspec3:

Is this a new setup using NF7-S rev 2? I thought you had a NF7-S rev1.2 w/ A2 NB for the 250 MHz FSB, with 2.1V chipset Vdd and 3.25V Vdimm.


Would the SK-6 over the NB too big and interfere with the air flow for CPU cooling.

Nope is the same rev 1.2 board with the A2 NB. It didn't make that large a difference in the CPU temp since the Alpha pal 8045 draws air up through the cpu...so it may have even helped. It's not an issue anymore because I have gone to water cooling.

I plan on pelting/watercooling the NB in the next few weeks

steve

[JungleMan]

Originally posted by mrspec3


Yes it was the thermalright sk-6...it was late ;)

Here is a pic of my current cooling setup. I am putting the old NB cooer on the SB later
http://members.rogers.com/overclockedguy//NB5.jpg
Wow is that SK-6 held on with just a zip tie?

I have a spare SK-6 around and if I can mod my 8RDA+ I'm in business :D

[hitechjb1]

Originally posted by v8vega350
there is a 1.4 bios out for the nf7 2.0 that will let you go to a 300 fsb just thought i would let you know it is beta though

If one could get to 300 MHz FSB on the NF7 2.0 assuming w/ memory support,
the max memory bandwidth would be 300 x 2 x 8 = 4800 MB/s
the effective memory bandwidth should be about 0.95 x 4800 = 4560 MS/s

This would almost tie a quad pump P4 at non-oc 200 MHz (QDR 800) dual channel, since
the effective memory bandwidth would be around = 0.75 x 200 x 4 x 8 = 4800 MB/s (at 75% dual channel efficiency)

[Starfoxer]

wow, that is awesome for both of you guys!

i cant wait to see the benchies, especially 3dmark 2k1/3 as that 250fsb should score high with a p9700 pro.