Can I join the club too? Will post up pics and specs of my retro rig soon!

Bros, can let me into the club? My specs:

3.0E (e0 stepping) @ 3.6ghz (1.285v)/ DFI865PE-AL/ 2x512mb DDR400/ Nvidia 6800GS (450/1200 factory OC ver).

In case anyone is wondering, this is not my primary rig, just a retro toy. Cheers!

This post has been edited by SGT76: Dec 8 2010, 06:09 PM

Thanks bro!

Oooo, prescott gets damn hot very fast once you crank up the voltage, so you need a good cooler.

This post has been edited by SGT76: Dec 10 2010, 11:12 PM

Not so good lah my cooler, Deepcool Storm Fighter only. With a better cooler I can get 4ghz easy I think.

Yeah, thinking bout it, if I can get a used one cheap like an XP-90 or something.

Very hard to find one now... so sad, lat time I had one...kanchong, kanchong go & sell ony

Radeon 3850 bro. Had one before, then sold it...

Now I have a 6800GS only. Also have a 4600Ti, Geforce 3 Ti200 and Radeon 8500. About a dozen other non-interesting cards also, like FX5200, 6200, etc.

Also wanna update, changed my cooler to a CM N620, with custom bracket, and stable at 3.95Ghz so far. Going for 4 ghz, maybe more if I can

This post has been edited by SGT76: Dec 19 2010, 03:37 AM

Updated: 4ghz

This post has been edited by SGT76: Dec 19 2010, 12:14 PM


Attached thumbnail(s)

Thanks bro. FSB at 1066mhz, ram at 177mhz CL2.5 - cause my rams are just generic stuff. Temps even with the new cooler are low 70s during intelburn test. My test room is not air con'ed- ambient temps are high- so that's a big minus point. The whole case gets blazing hot until even the panels feel like the side of an oven. You can actually start sweating sitting around this system. Stability is of course best early in the morning

Stability tests completed at 4ghz- intel burn test 10 loops maximum stress, superpi 32m, unigine cathedral, prime 95 2 hrs and 1/2 hr of NFS:MW. No 24 hr prime test- I just don't believe in 24 hr priming anymore, the stress it places on system components is lethal and I prefer more real world tests. High power draw of the prescotts at 4ghz will burn out mosfets eventually.

Now that I've hit 4ghz, I'm gonna lower it to something "sane" for 24/7 use - maybe 3.6ghz . I kinda like my retro P4 so I want it to last just a bit longer.

Running at 4ghz is scary- the system feels like it's on a thin edge. The air exhausted out the back fan and psu is like a building exhaust vent. Case side panels hot. Northbridge heatsink WILL burn fingers real fast, vcore fluctuates due to droop.

Parameters are:
ram timings: 2.5-3-3-7 @ 177mhz dual channel
voltage set in bios to 1.385v, but due to vdroop it fluctuates wildly. Setting it higher than this pushes temps way too high.
pci/agp/sata all locked at 33/66/100
super patch and all auto enhancements off

hardware is:
Processor: Prescott 3.0 E0 stepping
Motherboard: DFI 865PE-AL
Ram: 1 stick Kingmax 512mb DDR400 and 1 stick Kingston 512mb DDR333 (either it shows how ghetto my rig is or that you don't need high performance rams) <-- anyway I'm looking for a set of better rams
CPU cooler: Coolermaster Hyper N620, with modified Deepcool s478 mounting, 2 x12CM fans
Thermal past: Zalman
Graphics: Nvidia 6800GS, Palit oc'ed version, further pushed to 470/1300--> faster than a 6800 Ultra
Hard disk: 2 x 40gb (1 maxtor, 1 Hitachi)
Optical drive: Sony CD/ DVD combo
Floppy: Sony 1.44"
Sound card: SB Live ! CT4830 with EMU chip (on-board sound doesn't like oc- becomes flaky)
Case: Coolermaster Elite, forgot which model- 3 x 12cm CM fans
PSU: Tagan 480w
Others: CM Musketeer with bling bling meter

Future plans: get some better rams - Kingston Hyper-X or similar, more modern video card- Radeon 2600, 4650 or 3850, add more fans - maybe 2 in the rear in sequence to extract hot air faster, heatsinks on mosfets, southbridge, ram cooler.

This post has been edited by SGT76: Dec 20 2010, 03:52 PM

3.6ghz on Northwood is very impressive. Before this I was using 2.8b, max stable oc only 3.36ghz. Clock-4-clock, Northie is 10% faster than presscott I think, so your 3.6ghz should be about a 4ghz pressie.

Ya, ya 3:2... my matematik very phail one thanks!

C Northie is the best P4 bro. Northwood only 21 stage pipeline, prescott is 30 stage. Make many many extra rounds in the silicon, then only the superpi come out.

Very inspired lah joining this thread. I think today I go back I'm gonna tweak my system some more and try to get that 4ghz 24/7 stable.

This post has been edited by SGT76: Dec 20 2010, 06:17 PM

Benchmarks at 4ghz

Intelburn 10 loops at max- stable



3dmark06 - 3383 marks



superpi 1m- 37.437s



cpu queen- beats athlon 64 3200, pentium d820 and P4 3.73 EE



cpu aes- beats sempron 140, pentium d820 and P4 3.73 EE



cpuhash- beats core duo T2500, athlon 64 3200 and P4 3.73 EE



cpuzlib- beats sempron 140, athlon 64 3200 and P4 3.73 EE



fpujulia- beats core duo T2500, P4 3.73 EE and athlon 64 X2 4000!



fpumandel- beats core duo T2500, P4 3.73 EE and athlon 64 3200



fpusinjulia- beats sempron 140, pentium d820 and P4 3.73 EE



fpuvp8- beats athlon 64 3200 and P4 3.73 EE



This post has been edited by SGT76: Dec 21 2010, 11:01 PM

Thanks bro. Learned a lot from Lowyat from reading all the posts, now I'm just giving back by sharing some info.

Getting this to a stable 4ghz for practical 24/7 usage was the most challenging project I've ever undertaken- had to add heatsinks on all the mosfets, modify the custom mount a bit more, tweak the volts, remove unneccesary hardware (4ghz prescott is a power hog- Tagan 480w is almost not enough for it!!!), bios tweaks, carefully route all cables and wires and ensure optimum airflow.



This post has been edited by SGT76: Dec 23 2010, 01:21 PM

Bro shinjite, a great honour coming from you.

BTW- 4ghz 24/7 is not impossible you mean? My voltage is only 1.3875v, load temps now are 70c max- less than stock clocks using the stock cooler. I have tracked thermal throttling using throttle watch and tweaked till I found zero evidence of this happening. Maybe the processor will deteriorate, but if we are measuring this in terms of years, I'm ok with that.



This post has been edited by SGT76: Dec 24 2010, 09:30 AM

---

Added on December 30, 2010, 10:48 pmRunning 4ghz all the way 24/7, no cranking down. I was surprised too at the power usage. This PSU has served me well in the past on my old Athlon 7750BE system (overclocked 3.16Ghz) with 8800GT, 3 hard disks, 1 DVD burner + 2 120cm fans.

But it's marginal for this system. I have stripped this rig down to the basics- 1 hd, 1 cd/ dvd drive, 3 120cm fans, 6800GS card, SB Live! sound card.



This post has been edited by SGT76: Dec 30 2010, 10:56 PM

That's it for me .... my last P4 rigs are up for sale, if anyone's interested. Godspeed Netburst, it was a good ride.