Crew Leeghoofd Posted October 23, 2022 Crew Share Posted October 23, 2022 Stage 1: SuperPi 32M, maximum CPU frequency of 4005MHz on Wolfdale 6M CPUs Stage 2: Pifast, maximum CPU frequency of 3610MHz on Celeron-256 CPUs Initial setup at: https://hwbot.org/competition/Antinomy's Low Clock Challenge More info to follow 8 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 23, 2022 Crew Share Posted October 23, 2022 This competition was supposed to be in-house for Not Exact in Round members. But I thought I'll be more fun to see our friends from other teams and anyone willing to participate. The primary goal is mastering your tweaking skills both HW and SW. I welcome you to share tweaks being used. Of course, most of us have some secret sauce but most tweaks are common yet might be unknown to others. For example, only a month ago I learned about the huge impact that full screen mode has on Pifast. Also I ask you not to do last hour shots. This is more an educational competition so work in progress results with comments are very welcome. "Improve, share, learn, repeat" - that's the motto. 3 11 Quote Link to comment Share on other sites More sharing options...
Noxinite Posted October 24, 2022 Share Posted October 24, 2022 (edited) Did someone say LGA775? Edited October 24, 2022 by Noxinite 5 2 1 1 Quote Link to comment Share on other sites More sharing options...
MachineLearning Posted October 25, 2022 Share Posted October 25, 2022 I hope to see a huge variety of chipsets. It would be awesome to see i975X up to X48, oddball SiS & VIA, DDR1 through DDR3, etc. ? Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 25, 2022 Crew Share Posted October 25, 2022 2 hours ago, MachineLearning said: i975X up to X48, oddball SiS & VIA, DDR1 through DDR3, etc. I have pretty much everything. ? One of my teammates asked about X48 and Celeron D. The thing is, these boards can boot with Celeron D but when you enter BIOS, you can't set FSB lower than 200. So you're forced to boot @200. One of the ways is to boot at 200 and then lower FSB to meet 3600MHz requirement. But this is not the only way for them, I'll post another way. 2 Quote Link to comment Share on other sites More sharing options...
Mr.Scott Posted October 26, 2022 Share Posted October 26, 2022 Only 775 board I own is an odd duck. P5QC This should be interesting. 2 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 26, 2022 Crew Share Posted October 26, 2022 (edited) 4 hours ago, MachineLearning said: I hope to see a huge variety of chipsets On a second thought this might be much more fun. I will make a separate leadership in the OP for each chipset vendor and memory type. So besides the overall competition we'll see top10 Intel, NV, SiS, VIA and so on and top10 DDR1, 2, 3. I see sense in this only for Pifast but let me know if someone thinks 32M is worth summing the same way too. Edited October 26, 2022 by Antinomy 2 Quote Link to comment Share on other sites More sharing options...
StormUK Posted October 26, 2022 Share Posted October 26, 2022 Hi all, I'm new to OC'ing but feel this would be an interesting project for me to have a go at. Would anyone mind posting an example build please to point me in the right direction for trying this? Thanks 1 Quote Link to comment Share on other sites More sharing options...
Dry_Ice777 Posted October 26, 2022 Share Posted October 26, 2022 (edited) 2 hours ago, StormUK said: Hi all, I'm new to OC'ing but feel this would be an interesting project for me to have a go at. Would anyone mind posting an example build please to point me in the right direction for trying this? Thanks Hi Storm! Okay, we need to see limitations. For the 1 stage: LIMITATIONS Only use processors based on the Wolfdale-6M core. Maximum CPU Frequency limitation 4005MHz Wolfdale-6M - that means, we need cpu with 6M level 2 cache size. Here you can search all CPUs with this feachure Then you must search this CPU on hwbot. Check MB, RAM, that peoples used for best results. Spoiler For maximum performance we need mb - X48 chipset, ram - hypers\D9GTR\D9GTS Don't forget open all windows of CPU-Z, that you can proof your results. Check the official rules for the screenshots! For the 2 stage: LIMITATIONS Only use processors based on the Prescott-256-64 core. Maximum CPU Frequency limitation 3610MHz By the same principle, we are looking for a processor that suits us. Next, we check on which system it will be more efficient to get the result and try to achieve the same numbers. I'll warn everyone right now. Antinomy would not be Antinomy if he made a simple stage, where it is known exactly which pieces of iron rule. In the second stage, you need to study the knowledge base very well and try several different platforms to understand where the efficiency is better. Good luck to everyone! Edited October 26, 2022 by Dry_Ice777 2 4 Quote Link to comment Share on other sites More sharing options...
TerraRaptor Posted October 26, 2022 Share Posted October 26, 2022 2 hours ago, StormUK said: Would anyone mind posting an example build Stage 1 - e8200/e8300/e8400/e8500/e8600/e8700 or xeon equivalent + p35-x48 board (good DDR3 options may be P5K3, P5e3 premium, Rampage Extreme, P5E64; good ddr2 options are P5k/p5q, DFI P35-p45, Gigabyte p45) + ram (for ddr3 it is either single sided d9gt 1GB per stick and dual sided 2GB sticks based on elpida hyper, bbse or PSC). Also, winXP and careful bios tuning. You will also need some software tweaks to be competitive. Stage 2 - very wide range of options to consider. For cpu, you need celeronD 320J/325J/330J/331/335J/336 and higher - but the lower is stock cpu clock the better - when overclocked to 3.6GHz the lower stock cpu frequency is the higher will be overclocked fsb. Chipsets of highest priority to try range from 865PE (like P5P800) to 955x/975X - so your choice is DDR/DDR2. 2 Quote Link to comment Share on other sites More sharing options...
ground Posted October 26, 2022 Share Posted October 26, 2022 aww damn, 666 fsb max 3 Quote Link to comment Share on other sites More sharing options...
StormUK Posted October 26, 2022 Share Posted October 26, 2022 Tyvm for the replies. Looks like I will be on ebay this afternoon Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 26, 2022 Crew Share Posted October 26, 2022 (edited) 2 hours ago, ground said: aww damn, 666 fsb max Next time I'll make a 8GHz Low Clock Challenge. Edited October 26, 2022 by Antinomy 1 1 4 Quote Link to comment Share on other sites More sharing options...
Noxinite Posted October 26, 2022 Share Posted October 26, 2022 I was thinking about mucking about with DDR2 at the start of the comp as I've not really tried to push it (effi-wise) before. 1 Quote Link to comment Share on other sites More sharing options...
MachineLearning Posted October 30, 2022 Share Posted October 30, 2022 It seems that the Pifast stage is slightly broken. I assume it should whitelist Prescott-256 CPUs alongside Prescott-256-64, currently only the latter is accepted. 1 Quote Link to comment Share on other sites More sharing options...
Crew Leeghoofd Posted October 30, 2022 Author Crew Share Posted October 30, 2022 I'm waiting for a heads up from @Antinomy and the background Quote Link to comment Share on other sites More sharing options...
TAGG Posted October 30, 2022 Share Posted October 30, 2022 (edited) 2 hours ago, MachineLearning said: It seems that the Pifast stage is slightly broken. I assume it should whitelist Prescott-256 CPUs alongside Prescott-256-64, currently only the latter is accepted. Well i was hoping it stayed 256-64, now there's unicorn chip with one multi lower Allso adapter shenanigans possible now... Edited October 30, 2022 by TAGG 1 Quote Link to comment Share on other sites More sharing options...
Bones Posted October 30, 2022 Share Posted October 30, 2022 On 10/26/2022 at 6:41 AM, Antinomy said: Next time I'll make a 8GHz Low Clock Challenge. I'm in.... ? 3 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 31, 2022 Crew Share Posted October 31, 2022 5 hours ago, Leeghoofd said: I'm waiting for a heads up from Everything seems fine, I'll upload a wallpaper in the evening. Adding regular 32-bit Prescotts will add some fun. 4 hours ago, TAGG said: Well i was hoping it stayed 256-64, now there's unicorn chip with one multi lower Allso adapter shenanigans possible now... Stay tuned, I'll make it even more fun 1 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 31, 2022 Crew Share Posted October 31, 2022 Wallpaper. (AI-powered Tron-like) 2 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 31, 2022 Crew Share Posted October 31, 2022 O.K. so here's some starter pack for you. The archive contains three major versions - vanilla Pifast, package with Runprio and HexusfastR. Runprio runs Pifast with High priority, FastR with Realtime. All the batch files were modified with a goto operator which allows you to re-run the test simply by pressing any key. The old result should remain. The second is the full screen tweak in shortcut properties. Pifast.zip 2 1 Quote Link to comment Share on other sites More sharing options...
Crew Antinomy Posted October 31, 2022 Crew Share Posted October 31, 2022 This is a lucky run with a P5E booted @200 and downclocked to 3600. Most runs were around 63.89-63.94. AIDA is not obligatory but I recommend you to use it as you'll see how latency affects performance. The second screenshot is the same system with full screen tweak. As you see, it gives a lot. 1 1 Quote Link to comment Share on other sites More sharing options...
frag_ Posted October 31, 2022 Share Posted October 31, 2022 Is 478-775 adapter allowed (hope it's not because it would give huge advantage and it's hard to get)? Quote Link to comment Share on other sites More sharing options...
Crew Leeghoofd Posted October 31, 2022 Author Crew Share Posted October 31, 2022 3 1 Quote Link to comment Share on other sites More sharing options...
Crew Leeghoofd Posted October 31, 2022 Author Crew Share Posted October 31, 2022 49 minutes ago, frag_ said: Is 478-775 adapter allowed (hope it's not because it would give huge advantage and it's hard to get)? That's Alex's call Quote Link to comment Share on other sites More sharing options...
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