NF3 Watercooled

[bradmax57]

oh, I take it then its a bit more complicated to do the volt mod for increasing the core, I did manage the old vdd mod on my old rev 1 8rda+, so aslong as I dont get the shakes i should be okay

[EPoX Tech]

And now running Windows XP-64 with the RAID stripe

[CCW]

Originally Posted by EPoX Tech

Anyone else had any luck VModding a 9800Pro to get past 500 core clock ? I've been trawling the web to try to get some other numbers.

Im assuming you want to achieve a higher 9800Pro GPU core clock using watercooling? The majority of 500MHz+ Core clocks have been done using T.E.Cs or Vapour Phase Change.

Majormav for example, ORB Compare was using an asetek VapoChill to reach this clock. Heres one he did with a T.E.C - linky. From what I remember, Majormav also could run every 3DMark 2001 test except Nature at 560MHz+.

Macci and OPP have also reached core clocks well over 500MHz, around about the 560MHz area I do believe.

Craig

[EPoX Tech]

I'm past 500 stably on water, my holding point now is the fact that the memory won't go any further than 378 stably.

So a pelt isn't going to help me unfortunatley. If I had a full plate enclosure over memory and gpu with 2 pelts it may be an entirey different story for my memory - unfortunatley - beastly RAMsinks are as good as it gets for me.

As I stated though - the RAM is the only problem here - what i did want to find out though was some comparitive scores for other 500+'ers and then find out what exactly their mod was. 24,000+ is where it's at for me - but where for everyone else ?

Hope you now understand my less than severe plight!

[CCW]

The sinks you have on the memory will be fine, you may have experienced differently but from my experience, TSOP memory chips do not overclock higher with better cooling, it merely prolongs their life span and provides a bit of extra stability while benchmarking.

Craig

[EPoX Tech]

Any component running CMOS technology will improve speed characteristics with reduced temperature, and absolute zero will give infinite speed. Beit a TSOP, a BGA plant like the samsung on my card, a pin grid array or whatever. BGA chips dissipate in their own ambient surroundings very well compared to other technologies given that no air is trapped underneath in leg clearance to be heated without good room for escape.


but.....

Again - where I am coming from is - since I'm not pelt cooling and only water and RAMsink, I'm interested in other peoples mods, and the range of their 4 pot settings - merely an information excercise. I'm not trying to gain information or personal theories other than this though.

[CCW]

I will ask Majormav for his POT settings for you and for more details relating to his 9800Pro Overclocks. He wrote a very good 9800Pro Volt modding guide a while back. Even though you do not require my personal theories, I posted it because you mentioned your memory was the problem and that T.E.Cs plus a cold plate may aid this.

I was merely interjecting that I believe T.E.C cooling your memory may be a waste of time as many have shown that despite lowering the temperature, they were unable to gain an increase in speed. It seems that shoving volts through it is the only way to retain any form of stability. I could of course be wrong, however just because you hold a grudge against me does not mean you have to tell me this information is not needed Andy. I do not want arguments, but you must remember that here, you represent EPoX, yourself and AOA Forums, so please talk to me in a civil fashion. Thanks.

I will post you the information from Majormav as soon as I have it.

Craig

[bradmax57]

ET upto 2.35ghz stable

[EPoX Tech]

Nice one Brad, You're clipping at my heels mate!

I'll let you know the mod for VDimm if you wish but take note that it is a surface mount mod, and involves remove and replace of 2 SMT resistors near the memory - one for range, one for step; i.e. one increases the range of the memory voltage adjustment, the other defines the incrememnt.

You could alternatively shove a 10K pot from the same point to the feed leg of the memory linear line having removed 1 SMT and adjust by dialling - but I don't recommend that!

You need to change R636 from 16Kohm 1% to 8.06Kohm 1% and R637 from 8.06Kohm 1% to 4.02K %.


This will give you 2.5v - 3.1v on VDimm in 0.2v increments.

[bradmax57]

Originally Posted by EPoX Tech

Nice one Brad, You're clipping at my heels mate!

I'll let you know the mod for VDimm if you wish but take note that it is a surface mount mod, and involves remove and replace of 2 SMT resistors near the memory - one for range, one for step; i.e. one increases the range of the memory voltage adjustment, the other defines the incrememnt.

You could alternatively shove a 10K pot from the same point to the feed leg of the memory linear line having removed 1 SMT and adjust by dialling - but I don't recommend that!

You need to change R636 from 16Kohm 1% to 8.06Kohm 1% and R637 from 8.06Kohm 1% to 4.02K %.


This will give you 2.5v - 3.1v on VDimm in 0.2v increments.

That should be good as my geil is rated upto 2.95v i think?

[EPoX Tech]

How's the overclock going Brad ? Have you managed to drop multiplier and increase FSB much ?

Dod will be back in the game today - I've fixed his 8 channel audio and floppy disk gremlins on another PCB.

[dod]

Originally Posted by EPoX Tech

How's the overclock going Brad ? Have you managed to drop multiplier and increase FSB much ?

Dod will be back in the game today - I've fixed his 8 channel audio and floppy disk gremlins on another PCB.

Thanks ET looking forward to it What's your memory recommendation for this, still going with Samsung?

[bradmax57]

Originally Posted by EPoX Tech

How's the overclock going Brad ? Have you managed to drop multiplier and increase FSB much ?

Dod will be back in the game today - I've fixed his 8 channel audio and floppy disk gremlins on another PCB.

Im not having too much luck in that department im sure it just a bit of fiddling with memory timings etc, stange thing is i had my nf3 150 board all the way upto 330+ fsb @ 7x but that was with only 3x HT, my board seems to overvolt quite a bit at 1.75vcore im reading 1.82v which I thought might help it is an enermax which I know you have said can be weird, i will persevere

[WR-HW95]

Originally Posted by CCW

The sinks you have on the memory will be fine, you may have experienced differently but from my experience, TSOP memory chips do not overclock higher with better cooling, it merely prolongs their life span and provides a bit of extra stability while benchmarking.

Craig

I asked about this issue when i put waterblock on my FX5900 GPU, because RAM doesnt now have any airflow or heatsinks.
Macci told me that he havent really noticed any difference does RAM have heatsinks (original XT type) or not at all.
But afaik in ATI card RAM runs higher temp than in nVidia.
In my card chip surface is about 55´C @960MHz when i´m playing games (default voltage).

[EPoX Tech]

Originally Posted by bradmax57

Im not having too much luck in that department im sure it just a bit of fiddling with memory timings etc, stange thing is i had my nf3 150 board all the way upto 330+ fsb @ 7x but that was with only 3x HT, my board seems to overvolt quite a bit at 1.75vcore im reading 1.82v which I thought might help it is an enermax which I know you have said can be weird, i will persevere

Due to the increase of bit-rate upstream and effectively down in this chipset I wouldn't pinout too much hope of going further than 280 really.

[bradmax57]

Originally Posted by EPoX Tech

Due to the increase of bit-rate upstream and effectively down in this chipset I wouldn't pinout too much hope of going further than 280 really.

thought something like that as the 150 seemed to be 8bit/16bit or whatever it was, it would be nice to get a working version of clockgen so I can get the 9.5x multi and poss a 250fsb, i think my chip tops out somewhere between 2.35 & 2.4ghz

[CCW]

Originally Posted by EPoX Tech

and absolute zero will give infinite speed

Shame you would have to be an astronaut to get anywhere near a place with such a temperature, lol

[dod]

Originally Posted by EPoX Tech

Dod will be back in the game today - I've fixed his 8 channel audio and floppy disk gremlins on another PCB.

About half an hour, just loading an OS You've gotta love Eastenders for giving you peace to get on with things

[EPoX Tech]

But Eastenders is a tad rough this Evening - not exactly easy going this evening - i can't wait for Holby to start at this rate!!!

[EPoX Tech]

Watch out - I'm in X800 Pro Watercooled heaven - gonna start benching tomorrow...........