RAM Timings

[congo]

I know the PLL is usually near a timing crystal, but I can't find it yet. (the one near the cpu is inaccessable to view, but can be felt and it's cool). Every chip I can find is cool though.

This is my board, I'm pretty sure it's exactly like the one you posted, ie. rev 1.02 PCB without the added extras the deluxe has on it.

http://www.thetrailingedge.com/images/p ... li-big.jpg

My Northbridge is well cooled, I got rid of the Asus HSF/assembly shortly after buying the board and replaced it with a Zalman with good active cooling.

I did a lot more testing, which I might post details of soon, but the upshot is that 1T CR timings are giving me a very hard time, just as they always have, in fact, this ram seems to like 1T even less than my Kingmax did. I wonder if that is because they are 1mb modules instead of 512mb modules?

In 2T CR, the system seems to excel and posts excellent bandwidth results, but I would like to solve this puzzle.

NickN, what you said about the

[Nick N]

[quote]I know the PLL is usually near a timing crystal, but I can't find it yet. (the one near the cpu is inaccessable to view, but can be felt and it's cool). Every chip I can find is cool though.

This is my board, I'm pretty sure it's exactly like the one you posted, ie. rev 1.02 PCB without the added extras the deluxe has on it.

http://www.thetrailingedge.com/images/p ... li-big.jpg

My Northbridge is well cooled, I got rid of the Asus HSF/assembly shortly after buying the board and replaced it with a Zalman with good active cooling.

I did a lot more testing, which I might post details of soon, but the upshot is that 1T CR timings are giving me a very hard time, just as they always have, in fact, this ram seems to like 1T even less than my Kingmax did. I wonder if that is because they are 1mb modules instead of 512mb modules?

In 2T CR, the system seems to excel and posts excellent bandwidth results, but I would like to solve this puzzle.

NickN, what you said about the

[congo]

Ummm, the last boat I took out on the high seas was powered by a 2 cylinder Lister diesel with vegetable oil as spare fuel, (and over 35,000 nautical miles, we only used vegetable oil once

[congo]

Ok, I did a lot more testing at 1T Command Rate and the news isn't good, I just can't break past 220mhz unless I slow the CPU and HTT way down, like I need to get HTT below 280mhz and CPU speed below 2500mhz, and this is shaky.

My best results seem to come easily with tight timings 2-3-2-5-1T and a 10.5x cpu multi, this produces:

HTT=262.62
cpu=2757.53
mem=212.12

Easily stable at low voltages there.

I thought I was getting a break for a while using low cpu multis and high volts, but I hit a wall early.

I tried loose timings, tight timings and in between timings, This ram just didn't want to know about 1T much over 220mhz. Mind you, it could be this mainboard I guess, Seems I remembered others getting 1T on their boards, or at least claiming to.

I'd be disappointed but the performance on 2T seems pretty darn good.

[Nick N]

Ummm, the last boat I took out on the high seas was powered by a 2 cylinder Lister diesel with vegetable oil as spare fuel, (and over 35,000 nautical miles, we only used vegetable oil once   )

I suppose if we got desperate enough we could eat the fuel  

Mind you, the old Lister is still going strong after more than 40 years, I wouldn't dare "overclock" it though

[i]Note to self

[Nick N]

Ok, I did a lot more testing at 1T Command Rate and the news isn't good, I just can't break past 220mhz unless I slow the CPU and HTT way down, like I need to get HTT below 280mhz and CPU speed below 2500mhz, and this is shaky.

My best results seem to come easily with tight timings 2-3-2-5-1T and a 10.5x cpu multi, this produces:

HTT=262.62
cpu=2757.53
mem=212.12

Easily stable at low voltages there.

I thought I was getting a break for a while using low cpu multis and high volts, but I hit a wall early.

I tried loose timings, tight timings and in between timings, This ram just didn't want to know about 1T much over 220mhz. Mind you, it could be this mainboard I guess, Seems I remembered others getting 1T on their boards, or at least claiming to.

I'd be disappointed but the performance on 2T seems pretty darn good.

Try 10 x 270 @ 3-4-4-11 @ 1T DDR333 HT @ 3x (600) Vcore 1.6v -1.62

I dont want you to damage the CPU with stress tests just see if it posts and boots into Windows. If of does raise FSB to 175 and try it again. The set it back down. If it dosent make it, you have hit a wall. If it does, you may have room to work with a CPU heatsink.

There may ba a way to stabilize the chipset but it could be risky. A volt mod to raise it from 1.5 to 1.65-1.7v would probably do it, however, I think the memory sticks you have are simply not up to the task. I can not believe the motherboard would restrict 1T use below 220 and tend to believe it is a combination of the memory, lack of CPU thermal cooling and possibly a noisy PSU.

[congo]

Ok, I'm running at the settings, also managed to get a bit higher fsb before at 275+ with a lower cpu multi.

Highest Vcore in this bios is 1.55v which gives me 1.6v at the sensors.

Vram is 2.8v

I have to go for a while BBL Thx  ;)

[Nick N]

[quote]Ok, I'm running at the settings, also managed to get a bit higher fsb before at 275+ with a lower cpu multi.

Highest Vcore in this bios is 1.55v which gives me 1.6v at the sensors.

Vram is 2.8v

I have to go for a while BBL Thx

[Nick N]

[quote]Ok, I'm running at the settings, also managed to get a bit higher fsb before at 275+ with a lower cpu multi.

Highest Vcore in this bios is 1.55v which gives me 1.6v at the sensors.

Vram is 2.8v

I have to go for a while BBL Thx

[congo]

I haven't gotten 275 with 10x cpu yet.

This is just crazy, I dropped Vram to 2.6v, then I dropped Vcore to 1.39v and tried it again and look, I'm posting this and using photoshop at these settings

[Nick N]

[quote]I haven't gotten 275 with 10x cpu yet.

This is just crazy, I dropped Vram to 2.6v, then I dropped Vcore to 1.39v and tried it again and look, I'm posting this and using photoshop at these settings

[congo]

I tend to agree with everything you said above now that I can make sense of those assessments with more surety than before, I always suspected my PSU would eventually let me down, it's good for what it is and what I bought it for, but I doubt it was up to the task in this exercise. The PSU was chosen as "adequate" was about $40-45 US at the time and has been reliable and quiet enough.

The mainboard was chosen as an easy overclocker, not an extreme overclocker, I knew before I bought it that it had certain bios Limitations that the likes of DFI and ABIT boards had full control over. I still have some options left with this board that should see me through until a future hardware setup a generation ahead of what's out there right now. I can still get a reasonably powered dual core to overclock and I have another slot for a second 7900GS which should get very cheap in the near future. This board isn't quite dead yet.

The memory I am a tad disappointed with, I sent away to the USA for that, believing it might produce 250mhz at 1T since it had very low timings at 200mhz. It was not overly expensive though, and it does produce good results up to about 220mhz at 1T and excellent results at 2T Command Rate and high memory speeds.

I think I will just wait until I see the Tuniq Tower on special (they will be $100 or more shipped to me at the moment) and grab one of those instead of a zalman cooler, I'll have to check the noise level on the tuniq first though. I saw a test where the Tuniq tower keeps the cpu a good level cooler than the zalman 9500/9700's at load temps.

I had already thought about any new PSU being fit for a future upgrade, but that brings uncertainty and high cost I can't justify at the moment, anything decent will cost me around $300 here, so it simply must wait.

My old clockgen sets Vcore, cpu multi, clocks and PCI buses on the fly, and I'm aware of the stability issues, if I have a failure with clockgen settings, I usually go into bios and set it manually as a double check, and this proved wise on several occasions.

I ran at least another fifty combinations of settings not reported in this thread, and they were mostly controlled and planned, but there were a few "shots in the dark" fired like me dropping the voltages in the above test and getting into the OS just fine and peachy after believing voltage was stopping me. I had this same experience with my last ram as well, It didn't seem to like over 2.65v, instability could creep in and they got hot if I pushed them hard. I could boot those sticks at up to 250mhz in Windows at 1T but it would invariably crash them within a short time, I will retest those modules in the near future if I get around to it, just to help consolidate what I've learned here and to make sure I didn't miss something in those modules while testing, due to ignorance.

Ah, yes, consolidation, I'll have to go back and read it all again, I was so wound up running so many tests for so long, which brings us back to the original question of the thread............

Does anybody know an easy way to ............... S L A P ! ........ Dream on Congo, Dream on

[Nick N]

[quote]I tend to agree with everything you said above now that I can make sense of those assessments with more surety than before, I always suspected my PSU would eventually let me down, it's good for what it is and what I bought it for, but I doubt it was up to the task in this exercise. The PSU was chosen as "adequate" was about $40-45 US at the time and has been reliable and quiet enough.

The mainboard was chosen as an easy overclocker, not an extreme overclocker, I knew before I bought it that it had certain bios Limitations that the likes of DFI and ABIT boards had full control over. I still have some options left with this board that should see me through until a future hardware setup a generation ahead of what's out there right now. I can still get a reasonably powered dual core to overclock and I have another slot for a second 7900GS which should get very cheap in the near future. This board isn't quite dead yet.

The memory I am a tad disappointed with, I sent away to the USA for that, believing it might produce 250mhz at 1T since it had very low timings at 200mhz. It was not overly expensive though, and it does produce good results up to about 220mhz at 1T and excellent results at 2T Command Rate and high memory speeds.

I think I will just wait until I see the Tuniq Tower on special (they will be $100 or more shipped to me at the moment) and grab one of those instead of a zalman cooler, I'll have to check the noise level on the tuniq first though. I saw a test where the Tuniq tower keeps the cpu a good level cooler than the zalman 9500/9700's at load temps.

I had already thought about any new PSU being fit for a future upgrade, but that brings uncertainty and high cost I can't justify at the moment, anything decent will cost me around $300 here, so it simply must wait.

My old clockgen sets Vcore, cpu multi, clocks and PCI buses on the fly, and I'm aware of the stability issues, if I have a failure with clockgen settings, I usually go into bios and set it manually as a double check, and this proved wise on several occasions.

I ran at least another fifty combinations of settings not reported in this thread, and they were mostly controlled and planned, but there were a few "shots in the dark" fired like me dropping the voltages in the above test and getting into the OS just fine and peachy after believing voltage was stopping me. I had this same experience with my last ram as well, It didn't seem to like over 2.65v, instability could creep in and they got hot if I pushed them hard. I could boot those sticks at up to 250mhz in Windows at 1T but it would invariably crash them within a short time, I will retest those modules in the near future if I get around to it, just to help consolidate what I've learned here and to make sure I didn't miss something in those modules while testing, due to ignorance.

Ah, yes, consolidation, I'll have to go back and read it all again, I was so wound up running so many tests for so long, which brings us back to the original question of the thread............

Do anybody know an easy way to............... S L A P ! ........ Dream on Congo, Dream on

[congo]

Thanks for the offer, I might take you up on it one day. Currently we can get a post worth up to $1000 with no duty or taxes, for most things.

Yeah, the memory controller was an eye opener, I somehow never was aware that vcore played a part in it.

I'm

[Nick N]

[quote]Thanks for the offer, I might take you up on it one day. Currently we can get a post worth up to $1000 with no duty or taxes, for most things.

Yeah, the memory controller was an eye opener, I somehow never was aware of that vcore played a part in it.

I'm