OC adventures with a 1100T

[older&dirtier]

Updaaate!



Apparently they can do 1600 8-8-8-24 but no less... Have not tried if they can also do that with less voltage. Should I try to find lower timings at 1333 to ease up the Northbridge? Any insight guys?

Alaric, Kenrou, Mr.Scott, Dr. McCoy, storm-chaser, caddi daddi, anyone else?

 

[Mr.Scott]

My take:
There is no advantage in anything overclocking the HT link. Keep it around 2000.
CPU MHz is king. Never give any away for memory timings or speed.
NB frequency does help in some things, but not so much in real world usage.
2600-2800 is comfortable on Thuban's.
Memory speed and timings you'll have to play with. Typical AMD is tight timings over speed, but I personally wouldn't go slower than 1500-1600, and if you're going under 1600 you better be at CL7 or less.

 

[older&dirtier]

My take:
There is no advantage in anything overclocking the HT link. Keep it around 2000.
CPU MHz is king. Never give any away for memory timings or speed.
NB frequency does help in some things, but not so much in real world usage.
2600-2800 is comfortable on Thuban's.
Memory speed and timings you'll have to play with. Typical AMD is tight timings over speed, but I personally wouldn't go slower than 1500-1600, and if you're going under 1600 you better be at CL7 or less.

Thanks!

From looking the results I posted, I think I 've pretty much determined that:
2600NB_1.25V - 2200HT
2800NB_1.30V - 2200HT
3000NB_1.35V - 2400HT (probably not, as more heat on the die)
, are the combination that work best, at least on my system.

Isn't 1600MHz a little hard on the NB and maybe limit the maximum CPU clock?
I am currently trying to find CL7 timings at 1333MHz, to see if I get any better on real world usage.
The next step is to find if I can get to 3.9-4.0(19.5-20x) with not much voltage.
If I can keep the core temp at 52-53C, do you believe that I will cause strain to the CPU, if I need 1.5V for these frequencies? Because we determined that my CPU is not that high-grade, is there a chance that something will kick it?

 

[Mr.Scott]

1600-1800 is the sweet spot on Thuban.
If you're down to 1333MHz, you better be at CL6 or it's not worth the loss in speed.
1.5v ain't that bad as long as you can keep it cool. Rule of thumb is no more than 1.55v on ambient and you have to stay under 60c. Lower would be better if you can find the means.

My 960T on water





My current daily driver. 1055T on air.

 

[storm-chaser]

What Mr. Scott said and 1600MHZ ram will not effect top clock speed of the CPU. Here is an example of an ideally configured Thuban (on air):
-CL7 1600Mhz RAM
-2800-3000Mhz CPU-NB @ 1.3-1.35v (no more than 1.4v)
-2000-2200Mhz HT (no performance or reliability boost from increasing HT speed)

In finding the sweet spot of your CPUs MAX clock, keep your FSB at 200, set your core voltage to 1.485 and try for 3.8Ghz. If it's not stable just dial it back 100Mhz and call it good.
Does the computer POST at all with your CPU @ 4.0Ghz? If your heart is really set on the magic 4.0 number you might try 4.0Ghz @ 1.515v core and forego the torture tests. It is quite often the case that you may still have a reliable system that runs all the games and programs you need, just doesn't pass 2 hours of prime. And that's totally A-Okay in my book if you have solid reliability for your purposes. What type of cooler are you running? What are you seeing for peak temps?

 

[older&dirtier]

Thanks a lot for the tips guys!

1600-1800 is the sweet spot on Thuban.
If you're down to 1333MHz, you better be at CL6 or it's not worth the loss in speed.
1.5v ain't that bad as long as you can keep it cool. Rule of thumb is no more than 1.55v on ambient and you have to stay under 60c. Lower would be better if you can find the means.

Nice systems Mr. Scott! Thanks for showing, I got the idea!
Yeah, I 've found that my ram can't do lower than 7-7-7-22 at 1333MHz.
But they can do 8-9-8-25 at 1600MHz ultra stable, so I will stay with that. 8-8-8-24 also passed IntelBurn but crashed on OCCT.
Also, from previous testing max temp is 52-53C at 1.55V.

What Mr. Scott said and 1600MHZ ram will not effect top clock speed of the CPU. Here is an example of an ideally configured Thuban (on air):
-CL7 1600Mhz RAM
-2800-3000Mhz CPU-NB @ 1.3-1.35v (no more than 1.4v)
-2000-2200Mhz HT (no performance or reliability boost from increasing HT speed)

In finding the sweet spot of your CPUs MAX clock, keep your FSB at 200, set your core voltage to 1.485 and try for 3.8Ghz. If it's not stable just dial it back 100Mhz and call it good.
Does the computer POST at all with your CPU @ 4.0Ghz? If your heart is really set on the magic 4.0 number you might try 4.0Ghz @ 1.515v core and forego the torture tests. It is quite often the case that you may still have a reliable system that runs all the games and programs you need, just doesn't pass 2 hours of prime. And that's totally A-Okay in my book if you have solid reliability for your purposes. What type of cooler are you running? What are you seeing for peak temps?

Well, I have it at 3.8GHz(19x200) at 1.45V for a week now, has passed Prime blend 12hours with max temp 48C. Maybe it will be stable with less voltage, but haven't tried because I was trying ram settings.
The cooler is Silentium PC Fortis 2 XE1226 with 2 Akasa Piranha push-pull.
Yeah, it has posted at 4 and above, don't remember voltage. I forego that efforts because I tried to get it stable at max 1.45V (3.8 but not 3.9) and find a good NB-HT relation and good memory timings. I am glad you confirm what I've found, 2800NB-2200HT and 3000NB-2200HT as the best.
The thing is, miscalculations make me nervous! I want it ultra stable, no matter what! In the past, it has happened to me to game for hours and then crash while rendering...

Thank you, my hopes are up now!

 

[Alaric]

I've been following along for two pages. Now bookmarked for the coming weekend, when I hope to join in the PII X6 shenanigans.

 

[MaddMutt]

I've been following along for two pages. Now bookmarked for the coming weekend, when I hope to join in the PII X6 shenanigans.

^ Make sure you have a good mobo. The PII x6 1045 can only be OCed by the FSB as the Multi is locked.
Go easy on the criticism as this was my 1st and 2nd time OCing with DICE.
http://hwbot.org/submission/2968653_maddmutt_cinebench___r11.5_phenom_ii_x6_1100t_be_8.37_points.
http://hwbot.org/submission/2966668_maddmutt_superpi___1m_phenom_ii_x6_1100t_be_13sec_852ms. I forgot to take a screen shot for CPU Freq but this is about it without LN2
The Following is an EXAMPLE and every memory OC differently. For me on doing memory that is slower that what the memory sticks can do are :
If the memory is rated for 8-10-10-27 @ 2133 (Corsair Dominator Platinum 2 x 4GB sticks) - I would try the following
7-9-9-24/25 @ 1866
6-8-8-20/22 @ 1600
5-7-7-18/20 @ 1333

I would work to see which combination gave me the best performance/stability. It only has to be stable for 5 - 10 minutes, Benching is a Sprint NOT A Marathon


Thank You

 

[Alaric]

I have an 1100T on the way, courtesy of caddi_daddi. As for mobo, I have available a Asus M3N78-VM, Asus M5A99FX Pro, a Gigabyte 990FXA-UD3, and a Saberkitty R2.0. I think I'm covered on that. The M5A99 will get the workout until my beast of a PSU and a decent air cooler show up later this month. Also expecting a 1045T and M4A785-M this month. I love those boards and plan on some fun with it, as well. I hit 3038 MHz with a Phenom X4 9850 on one with nothing but FSB and horribly mismatched memory in all 4 slots.

I'm gonna miss Rgone for this, though.