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#11
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[This followup was posted to alt.comp.mainboards.abit and a copy was
sent to the cited author.] In article ApQmc.403803$Ig.138581@pd7tw2no, says... natric wrote: Since you have an NF7-S Rev2, if your current CPU is unlocked, simply change the multiplier to 11x at 200MHz, in sync, and you will have the equivalent to an XP3200+. This may require a slight increase in voltage, maybe 25mV. No special cooling required. If the CPU is locked, you may be able to relax Succeeded at 11*200MHz with CPU voltage as 1.725V (some intempestive reboot and/or unhandled exceptions below). Well, now stable since some days. |
#12
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natric wrote:
Succeeded at 11*200MHz with CPU voltage as 1.725V (some intempestive reboot and/or unhandled exceptions below). Well, now stable since some days. Good stuff. Try running the Prime95 "Torture Test" [Options|Torture Test] for 12-24 hours. If it crashes, increase Vcore to 1.75V and try again. Monitor temperatures under load. http://mersenne.org/freesoft.htm |
#14
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natric wrote:
[Posted to alt.comp.mainboards.abit and copy sent to the cited author] In article gl4oc.422004$Pk3.246272@pd7tw1no, says... natric wrote: Succeeded at 11*200MHz with CPU voltage as 1.725V (some intempestive reboot and/or unhandled exceptions below). Well, now stable since some days. Good stuff. Try running the Prime95 "Torture Test" [Options|Torture Test] for 12-24 hours. If it crashes, increase Vcore to 1.75V and try again. Monitor temperatures under load. http://mersenne.org/freesoft.htm Well, ran the Prime95 2.38's Torture Test (Blend first, small FFT second, Blen third after having increased VCORE to 2.75V) and every ***** time it falls down in about one hour. About temp, it's around 40°C before running and go up to 56°C. However, until now, all sounds good in normal usage (i.e. office writing, graphics work, usual internet surf/email/ftp/ng, dev. and compilations, backups and disk images every night, etc). Then, in your opinion what's the responsible ? Memory voltage and/or timings, cpu/chipset/agp voltages ? What ? ***** I assume you mean 1.75V not 2.75V Try the following settings: RAM Freq 200MHz| RAM Timings 11-3-3-3 | Vcore 1.775V | DDR Voltage 2.7V | AGP freq 66MHz|AGP 8x Disabled|AGP Fast Write Disabled| Now try Prime95 for a minimum of 6 hours. |
#15
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#16
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[Posted to alt.comp.mainboards.abit and copy sent to the cited author]
Well, step-by-step report. Here is the current status : FSB 200MHz, CPU Mult 11, CPU/RAM Freq "Auto" (ie. 200MHz here), RAM timings on "Optimal" (8-4-4- 2.0), CPU Voltage 1.75V, RAM Voltage 2.7, AGP 8x 66MHz with "Fast Write" enabled. = Prime95 (Blend Test Torture) ran 2 hours before error. This result is 2 times prior state. Then, now I'll go to run Small FFTs Test Torture to minimize ram impact and try to isolate if problem comes from cpu voltage or ram voltage/timings. |
#17
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natric wrote:
[Posted to alt.comp.mainboards.abit and copy sent to the cited author] Well, step-by-step report. Here is the current status : FSB 200MHz, CPU Mult 11, CPU/RAM Freq "Auto" (ie. 200MHz here), RAM timings on "Optimal" (8-4-4- 2.0), CPU Voltage 1.75V, RAM Voltage 2.7, AGP 8x 66MHz with "Fast Write" enabled. = Prime95 (Blend Test Torture) ran 2 hours before error. This result is 2 times prior state. Then, now I'll go to run Small FFTs Test Torture to minimize ram impact and try to isolate if problem comes from cpu voltage or ram voltage/timings. Better. Try RAM timings of 11-4-4-3. |
#18
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#19
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[Posted to alt.comp.mainboards.abit and copy sent to the cited author]
In article WRroc.455031$oR5.168113@pd7tw3no, says... natric wrote: [Posted to alt.comp.mainboards.abit and copy sent to the cited author] Well, step-by-step report. Here is the current status : FSB 200MHz, CPU Mult 11, CPU/RAM Freq "Auto" (ie. 200MHz here), RAM timings on "Optimal" (8-4-4- 2.0), CPU Voltage 1.75V, RAM Voltage 2.7, AGP 8x 66MHz with "Fast Write" enabled. = Prime95 (Blend Test Torture) ran 2 hours before error. This result is 2 times prior state. Then, now I'll go to run Small FFTs Test Torture to minimize ram impact and try to isolate if problem comes from cpu voltage or ram voltage/timings. Better. Try RAM timings of 11-4-4-3. Prime95's Blend Test Torture has been right during 9h30 and I've stopped it manually (since some sensible work to do in the pc). Current stable state is : CPU @ 11*200MHz on 1.775V, RAM on 2.7V and timings as 8-4-4-2.0, Chipset and AGP voltage stay unchanged. Now, when I'll have time, I'll take some try around different RAM timings to see benchmark incidence. |
#20
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[Posted to alt.comp.mainboards.abit and copy sent to the cited author]
In article , says... [Posted to alt.comp.mainboards.abit and copy sent to the cited author] In article WRroc.455031$oR5.168113@pd7tw3no, says... natric wrote: [Posted to alt.comp.mainboards.abit and copy sent to the cited author] Well, step-by-step report. Here is the current status : FSB 200MHz, CPU Mult 11, CPU/RAM Freq "Auto" (ie. 200MHz here), RAM timings on "Optimal" (8-4-4- 2.0), CPU Voltage 1.75V, RAM Voltage 2.7, AGP 8x 66MHz with "Fast Write" enabled. = Prime95 (Blend Test Torture) ran 2 hours before error. This result is 2 times prior state. Then, now I'll go to run Small FFTs Test Torture to minimize ram impact and try to isolate if problem comes from cpu voltage or ram voltage/timings. Better. Try RAM timings of 11-4-4-3. Prime95's Blend Test Torture has been right during 9h30 and I've stopped it manually (since some sensible work to do in the pc). Current stable state is : CPU @ 11*200MHz on 1.775V, RAM on 2.7V and timings as 8-4-4-2.0, Chipset and AGP voltage stay unchanged. Now, when I'll have time, I'll take some try around different RAM timings to see benchmark incidence. As promised, I've made some trial with ram timings and here are my representative tests. All under a "charged" Win2K without any special preparation (ie. a lot of things in systray, including something like TuneUp MemOptimizer which may slow down instant perf occasionnaly) and knowing the nf7-s is working in DualBand with 2*256MB of noname with Samsung chips. Here are some representative results : timings / aida32 read & write / sandra2003 int & float 8-4-4-2.0 (SPD one) / 3042 & 1157 / 3006MB/s & 2705MB/s 7-3-3-2.0 (Turbo one) / 3070 & 1175 / 3036 & 2841 (best sandra float) 11-2-3-2.0 / beep codes on reboot 11-2-2-2.0 / beep codes on reboot 10-3-3-2.0 / 3077 & 1178 / 3037 & 2758 (globally the best) Then, in a first pass, the two best seems to be 7-3-3-2.0 10-3-3-2.0 From this point, I'm testing the stability in both, starting with the BIOS preset one : 7-3-3-2.0 = A Prime95 Blend Test Torture (this time, MemOptimizer being closed to avoid any interference) has been ran during 10h without error and I've stopped it manually. About temperature : it was 38°C before launching and has gone up to 55°C. Then, I can considerate this config is honnestly stable. Next steps will be to do this same Prime95 test with the 10-3-3-2.0... And, maybe (but require lot of time), to try exhaustively all the possible combinations (especially all the ones with the 10,11,12 tRAS as recommended for the nForce2) :-p And this, without to talk about another way which would be to increase FSB again (but, surely would require to downgrade CAS). Without to talk about the fact, I should, certainly, be inspired to decrease VCORE and RAM voltage, for the purpose to find the minimum stable one in final state. Without to talk about the possible importance around chipset voltage. Without to talk about the pertinence of my, finally, reasonable cooling elements. Well, awaiting next torture on 10-3-3-2.0 (maybe next night if I'm here for launching it). However, a real and strong methodology around ram timings choices remains welcome if you have one !!! Let me (us) know |
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