Evaluate my prometia-based Intel system

[Acanthus]

The planned configuration for this machine is to run at 3.9ghz, 300fsb, default voltage (or no greater than 1.6v actual)

We plan to run at a 6:5 memory ratio for 250mhz at cas 2.5/3/3/8

We plan to run the FX5950 at 550core, 1000mem

Final hoped CPU clockspeed is 3.9ghz at 1200fsb

Configuration:

Prometia Mach II cooling with Lian-Li al case
Custom Copper waterblocks for GPU and Northbridge and water pump
Abit IC7-MAX3 motherboard
Kingston Hyper-X PC4000
BFG 5950U
P4 2.6C
Lite-on 16x dvd
Antec 550w Truepower PSU
Audigy 2 PCI
WD Raptor 72GB

Our questions are the following:

-Does prometia feed off of the power supply like Vapochill does? (this was a major problem with our last project)

-With a watercooled northbridge is it likely we can hit a 300mhz fsb? Would there be a motherboard better suited to that goal?

-Is our core/mem goal for the FX5950 on watercooling realistic? Are there brands of FX5950s that have faster memory than others?

little OT but please note this is a hobby, dont comment on the cost, and dont reccomend an ATi card to us please

 

[Mingon]

Originally posted by: Acanthus
The planned configuration for this machine is to run at 3.9ghz, 300fsb, default voltage (or no greater than 1.6v actual)

We plan to run at a 6:5 memory ratio for 250mhz at cas 2.5/3/3/8

We plan to run the FX5950 at 550core, 1000mem

Sounds terrible But who is this royal 'We'

 

[Acanthus]

Originally posted by: Mingon

Originally posted by: Acanthus
The planned configuration for this machine is to run at 3.9ghz, 300fsb, default voltage (or no greater than 1.6v actual)

We plan to run at a 6:5 memory ratio for 250mhz at cas 2.5/3/3/8

We plan to run the FX5950 at 550core, 1000mem

Sounds terrible But who is this royal 'We'

We is me and 2 friends, we worked together on the best design for a reuseable reliable PC that would be extremely fast

But our reasearch kind of hit a roadblock with these questions, there arent many roundups with PC4000 or faster memory.

 

[myocardia]

Hey man, since money is obviously no object, why would you want to use "slow" (funny, huh?) PC4000. They've already got PC4200, and if you wait and buy the memory last, I'm sure there will be even faster mem by then.

 

[myocardia]

Okay, I just checked-- Kingston's best PC4000 is only rated to run 3-4-4-8. That's not very good timings, man. From my experience with memory, there's no way you're ever going to get it to run 2.5-3-3-8 at 250(500 DDR). Are you sure the problem you were having with your last attempt being stable wasn't because you were trying to run your memory timings too tight?

Newegg has OCZ PC4000 Enhanced Latency (2.5-4-4-7) for $187 per 512MB stick, and OCZ PC4200 Performance Series (3-4-4-8) for $143/512MB stick. There's actually a chance that it would run 250 at quite a bit tighter timings, but, it isn't guaranteed, the way the Enhanced Latency PC4000 is. So, maybe low latency PC4000 is what you're going to have to use, if you expect 2.5 CAS timing at 500 DDR...

 

[Acanthus]

Originally posted by: myocardia
Okay, I just checked-- Kingston's best PC4000 is only rated to run 3-4-4-8. That's not very good timings, man. From my experience with memory, there's no way you're ever going to get it to run 2.5-3-3-8 at 250(500 DDR). Are you sure the problem you were having with your last attempt being stable wasn't because you were trying to run your memory timings too tight?

Newegg has OCZ PC4000 Enhanced Latency (2.5-4-4-7) for $187 per 512MB stick, and OCZ PC4200 Performance Series (3-4-4-8) for $143/512MB stick. There's actually a chance that it would run 250 at quite a bit tighter timings, but, it isn't guaranteed, the way the Enhanced Latency PC4000 is. So, maybe low latency PC4000 is what you're going to have to use, if you expect 2.5 CAS timing at 500 DDR...

I will definately look into that, The reason we chose 4000 over 4200 was timings, there is no 4200 that runs at cas 2.5 as far as i know.

Anyone know about the prometia power source? Thats our biggest concern right now.

 

[Shimmishim]

you may want to go ask the guys over in this forum:

these guys are nuts

i think AT is more for the casual/hardcore overclocker

these guys are on the EDGE/EXTREME....

they do dual prommy setups, one for their cpu and one for their gpu, in hopes of getting the highest 3dmark2k1 score on earth.... they've almost broken 30K!!!

ask around there and i'm sure you'll get the answers you're looking for....

but i believe the power feeds off the same power as the psu... but i could be wrong

btw, there's no such thing as a 6:5 ratio, only 5:4 and 3:2

one more thing.... i think you're asking for a lot when you hope on getting 3.9 wth around 1.6 volts... especially considering the ic7 series boards undervolt like a made woman...

i'd say push your voltage as far as or even above 1.7 volts.

 

[dannybin1742]

We plan to run the FX5950 at 550core, 1000mem

trash the fx, get a 9800xt, hope your not playing hl2

 

[Acanthus]

Originally posted by: dannybin1742

We plan to run the FX5950 at 550core, 1000mem

trash the fx, get a 9800xt, hope your not playing hl2

not playing HL2, playing UT2004 and Doom3, which will perform better on the fx, thx for reading my original post.

 

[Acanthus]

Originally posted by: Shimmishim
you may want to go ask the guys over in this forum:

these guys are nuts

i think AT is more for the casual/hardcore overclocker

these guys are on the EDGE/EXTREME....

they do dual prommy setups, one for their cpu and one for their gpu, in hopes of getting the highest 3dmark2k1 score on earth.... they've almost broken 30K!!!

ask around there and i'm sure you'll get the answers you're looking for....

but i believe the power feeds off the same power as the psu... but i could be wrong

btw, there's no such thing as a 6:5 ratio, only 5:4 and 3:2

one more thing.... i think you're asking for a lot when you hope on getting 3.9 wth around 1.6 volts... especially considering the ic7 series boards undervolt like a made woman...

i'd say push your voltage as far as or even above 1.7 volts.

Ill take a look. Thank you.

 

[myocardia]

Originally posted by: Acanthus

Originally posted by: Shimmishim
you may want to go ask the guys over in this forum:

these guys are nuts

i think AT is more for the casual/hardcore overclocker

these guys are on the EDGE/EXTREME....

they do dual prommy setups, one for their cpu and one for their gpu, in hopes of getting the highest 3dmark2k1 score on earth.... they've almost broken 30K!!!

ask around there and i'm sure you'll get the answers you're looking for....

but i believe the power feeds off the same power as the psu... but i could be wrong

btw, there's no such thing as a 6:5 ratio, only 5:4 and 3:2

one more thing.... i think you're asking for a lot when you hope on getting 3.9 wth around 1.6 volts... especially considering the ic7 series boards undervolt like a made woman...

i'd say push your voltage as far as or even above 1.7 volts.

Dang, they're talking about people getting 3.3Ghz out of Athlon64-FX's, and almost every single one of them is getting over 25,000 in 3dMark 2001. There's actually a guy making fun of himself because he's only getting 22,000 in 3dMark 2k1! Some of them are cooling their cpu's with dry ice! Crazy sh*t, man...

 

[superHARD]

I don't have any good answers for you but I would like to say that it looks like you are going to have one hell'ofva system! Good luck!

 

[Acanthus]

Originally posted by: Shimmishim

btw, there's no such thing as a 6:5 ratio, only 5:4 and 3:2

one more thing.... i think you're asking for a lot when you hope on getting 3.9 wth around 1.6 volts... especially considering the ic7 series boards undervolt like a made woman...

i'd say push your voltage as far as or even above 1.7 volts.

I was unaware there was no 6:5 on intel boards, last board was SiS 655 based, and had 5:6, 6:5, 8:9, 9:10, and 1:2 ratios. We will have to rethink the memory again.

As far as the undervolting goes, i mean we are going for 1.6v actual, not bios setting, so the setting would be closer to 1.65v. Electromigration and CPU life are concerns as this rig will see daily use.

 

[Acanthus]

Originally posted by: superHARD
I don't have any good answers for you but I would like to say that it looks like you are going to have one hell'ofva system! Good luck!

Thanks!