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Help selecting fast Memory for a Striker II Extreme (nforce 790i)

post #1 of 9
Thread Starter 
I have an E8400 Wolfdale processor with a Striker II Extreme motherboard. What I'm wondering is why I can't raise the CPU frequency above 1600 at all without it not booting?

It's completely stable at 1600 and I can even raise the voltages from stock, but it still won't post any higher. My temps are all sub 50 degrees and the processor limits me to 9x multiplier, so frequency is all I have.

Nvidia's tool seems to allow me to get it a little bit higher according to CPU-Z, but anything above a 405 reference MHz and it freezes and sometimes even that will do it.

My settings:
FSB: 400 MHz linked
Multiplier: 9x (max supported by CPU)
Vcore: 1.35V currently bouncing up to around 1.376

I'm a bit of a noobie on overclocking, but in the past it's always been tinker until the heat is above 65-70 degrees under stress and adjust accordingly until you get there. Now it seems like I can't even possibly get it to stress enough to reach 65. I'm starting to regret my enormous Vendetta CPU Heatsink/fan purchase. frown.gif I would at least like to hit 4.0ghz
Edited by Lasherz - 7/1/12 at 9:02pm
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post #2 of 9
What you'll need to do is read up on overclocking guides for your CPU, I'm on the move ATM so I can't really link you right now. But I think what you need to do is tweak your NB voltage since your CPU is from the chipset era. You will also need to watch your RAM speeds as well since increasing the fab will drive your RAM speeds up as well.
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post #3 of 9
Thread Starter 
Hey thanks for the reply.

I was able to finally achieve a speed higher than 1600 with your help, although it's so weird that it was unable to go past 1600 exactly, seriously not even 1601 would work. I figured that since it was such a nice round number that it was a hard lock rather than a voltage problem.

I noticed that FSB was the only way I could work this up, and I've heard that unlinking the CPU from the FSB is a very bad idea performance wise, so right now I'm sitting at around 1710Mhz FSB maximum and my CPU is still lower than 60 degrees, the vendetta heatsink and fan are doing wonders for it.

My goal is to reach 4ghz processor speed, so with a 9x multiplier I need to get to 1777.7 FSB, but with my current memory modules it's not possible. I've been thinking of upgrading my memory anyways since they're just the two sticks remaining from a previously 4 stick set (I had incorrect voltages set for a while and shortened their life because I didn't realize at the time that the timings they mentioned were with 2t timing instead of 1t, which could only be achieved with 1.8v on a 1.35v set).

Anyways, is there a certain set of sticks that can run with my board without any conflict as well as push 1800+ FSB? It would be great if they could do slightly more than that, but a vast majority of the sticks faster than that on newegg seem to be designed for intel chipsets specifically and I've got a 790i Nvidia chipset. I'd really prefer to be able to achieve 16gb of memory over 4 slots, but the schematics don't really matter, mainly I just need to know about any chipset compatibility problems. I'll give you a ram set as an example of something that I'm not sure if I could put in my motherboard without issues.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820220650 (It says "Only compatible with Intel x79 chipsets at one point, but the english isn't completely clear how they said it)

I monitor the shell shocker deals, and I've actually seen that set on there for a very reasonable price, but the wording scared me away and I ended up not buying it. Was I wise to avoid it?
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post #4 of 9
Fillout your rig specs in your profile so we can see what you are using
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post #5 of 9
Thread Starter 
Went ahead and filled them out the best I could.
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post #6 of 9
Thread Starter 
Still not totally sure about that RAM I asked about if someone would elaborate for me please? I don't want to get RAM that's going to be unstable under my motherboard after all.

I did a memtest today and luckily my current two sticks are running perfectly fine, so there's not much of a rush right now, but it would definitely be nice to have more than 4gb since it's a gaming system.

My computer specs should be correctly filled out, let me know if there's any more information you need please. I check my email every day at least once.
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post #7 of 9
Quote:
Originally Posted by Lasherz View Post

Still not totally sure about that RAM I asked about if someone would elaborate for me please? I don't want to get RAM that's going to be unstable under my motherboard after all.
I did a memtest today and luckily my current two sticks are running perfectly fine, so there's not much of a rush right now, but it would definitely be nice to have more than 4gb since it's a gaming system.
My computer specs should be correctly filled out, let me know if there's any more information you need please. I check my email every day at least once.

 

Regarding the computer specs, now you can get them to display in your signature.  To do that, begin editing your signature and select your system's name from the first drop-down menu on the bottom-left underneath the signature editor.  After that, click Submit.

 

I want to try to help with this because it looks like either no one is interested, or maybe the title of this thread isn't attracting the right people.  If it's the title, then I would choose something like "Help overclocking both E8400 and memory on Striker II Extreme (nForce 790i)" or something.  If you decide to change the thread title, then click "Edit Thread" underneath the title (in the normal thread view, not inside the full page editor).

 

Back in the day when the nForce 680i was hot, I had an E8400 @ 4.0 GHz in an EVGA 680i SLI (122-CK-NF68).  I had this even through the release of the nForce 700 series.  I bought this board after I joined OCN (they helped me build my first system).

 

Throughout that time, I learned something about the nForce chipset that I think may be able to apply here:  set the FSB Memory Clock Mode to Unlinked, and don't overclock the memory, but instead tighten the timings.  Even choose a Command Rate of 1T instead of 2T to see if the memory is ok with that.  Mine was, and let me tell ya:  just the simple switch from 2T up to 1T gave me a noticeable improvement in general system performance!  Now, I had to increase the memory voltage from the stock of about 2.1V to about 2.25V, but it was worth it.  I also had to loosen my CAS latency by 1ms, but like with the voltage, it was worth it.  I kept the other timings at their stock values (that is, I manually entered them to match the stock specs).

 

I think this also required me to increase the SPP voltage (northbridge), but that was worth it too.

 

For my core voltage, I remember needing a core voltage under load (as displayed by CPU-Z) of about 1.368-1.376V.  I had the FSB to 1.4V (I was advised that 1.5V would have been unsafe for my delicate 45nm CPU).

 

Although, I feel that it's worth repeating to 'Unlink' the memory and FSB clocks and to leave the memory at stock and focus on the timings - especially the Command Rate.  Keep in mind again that if your memory can do 1T instead of 2T, then the CAS latency may need to be loosened by 1ms or perhaps even 2ms at the most, and the memory voltage may need to be increased a bit.

 

To be honest, I don't know if this can apply to the 790i chipset, but I know that this applied to all the other nForce chipsets, especially the 680i, 750i, and the 780i.

 

I sincerely hope that this helps!

    
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post #8 of 9
Thread Starter 
Hey, thanks a lot for the reply, TwoCables. I noticed that about other people not being too interested so I took your advice and changed the thread name to something more suiting of my current issue. I also took your advice on the signature thing for my rig, I hadn't noticed that option before. Thanks for the clarification smile.gif

I was able to finally achieve 4ghz this morning after some very long trial and error in the settings. I swore by Anandtech's BIOS guide which they made specifically for my board and after a few memory latencies had been eased up it didn't take much. I had a little trouble figuring out how much voltage to assign the Vcore, but I was able to figure it out after a few blue screens smile.gif My computer and I are no worse for wear at the moment.

My problem now is that in order to go beyond 4ghz with a processor locked at 9X multiplier I need my RAM to operate at the motherboard's maximum speed comfortably (I have horrible history with overclocking ram, I find that it's best to just get a kit that's actually rated for the speeds it's going to run at). After a quick read-up on Anandtech's review of the Striker II I found that its limitation is right around 2ghz for FSB speeds (after being multiplied by 4 for DDR yadda yadda). So what I'm wondering mainly is if those kits that I linked in my previous post would do well in my motherboard, or should I go for a slightly older kit such as one that's rated for DDR3-1866? I'm pretty sure that a kit rated for that could do 2ghz fairly easily, but again I'd prefer to not overclock my RAM if I can help it. As mentioned earlier, the reason why I'm weary of those kits is because their wording about being designed for intel chipsets. Mine being Nvidia if that's truly the case then I'm a fish out of water with those kits.


P.S. One thing that you may be interested in knowing from the Anandtech site review is that unlinked apparently causes huge performance penalties when compared to linked and this is regardless of the speeds you achieve with the CPU or the Ram too. Not bashing your methods, I just now read all of this today. Might be worth a look since the 680i is almost identical to the 790i as I recall in my shopping days. They seem to know their stuff, it helped wonderfully when it came to timings and CPU settings that I've never heard of.

http://www.anandtech.com/show/2500/15
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post #9 of 9
Quote:
Originally Posted by Lasherz View Post

Hey, thanks a lot for the reply, TwoCables. I noticed that about other people not being too interested so I took your advice and changed the thread name to something more suiting of my current issue. I also took your advice on the signature thing for my rig, I hadn't noticed that option before. Thanks for the clarification smile.gif

 

You're welcome!  I like the new title.  :)  I hope this little reply of mine helps bump it up and attract new attention!

 

 

Quote:
Originally Posted by Lasherz View Post

I was able to finally achieve 4ghz this morning after some very long trial and error in the settings. I swore by Anandtech's BIOS guide which they made specifically for my board and after a few memory latencies had been eased up it didn't take much. I had a little trouble figuring out how much voltage to assign the Vcore, but I was able to figure it out after a few blue screens smile.gif My computer and I are no worse for wear at the moment.

 

Oh nice!  Congratulations.  smile.gif

 

 

Quote:
Originally Posted by Lasherz View Post

My problem now is that in order to go beyond 4ghz with a processor locked at 9X multiplier I need my RAM to operate at the motherboard's maximum speed comfortably (I have horrible history with overclocking ram, I find that it's best to just get a kit that's actually rated for the speeds it's going to run at). After a quick read-up on Anandtech's review of the Striker II I found that its limitation is right around 2ghz for FSB speeds (after being multiplied by 4 for DDR yadda yadda). So what I'm wondering mainly is if those kits that I linked in my previous post would do well in my motherboard, or should I go for a slightly older kit such as one that's rated for DDR3-1866? I'm pretty sure that a kit rated for that could do 2ghz fairly easily, but again I'd prefer to not overclock my RAM if I can help it. As mentioned earlier, the reason why I'm weary of those kits is because their wording about being designed for intel chipsets. Mine being Nvidia if that's truly the case then I'm a fish out of water with those kits.

 

I have to confess that this sort of thing feels like it's over my head.  I've never overclocked memory before.  The closest I ever came was when I had the 680i SLI.  I overclocked the memory a bit, but I didn't notice any difference at all.  I had 800 MHz memory overclocked past 1066 MHz somewhere, but all performance still felt the same as before.  The first time I noticed any difference was when I finally learned about putting the memory back to stock and changing the Command Rate to 1T.

 

However, there's more below:

 

Quote:
Originally Posted by Lasherz View Post

P.S. One thing that you may be interested in knowing from the Anandtech site review is that unlinked apparently causes huge performance penalties when compared to linked and this is regardless of the speeds you achieve with the CPU or the Ram too. Not bashing your methods, I just now read all of this today. Might be worth a look since the 680i is almost identical to the 790i as I recall in my shopping days. They seem to know their stuff, it helped wonderfully when it came to timings and CPU settings that I've never heard of.

http://www.anandtech.com/show/2500/15

 

There used to be an active member on here named G|F.E.A.D|Killa who is a great guy and even a member of Overclock.net's Performance Computing Team.  He once taught me that the 790i is unique in that it's not like the other nForce boards.  You see, I am remembering right now that back when I first learned about this 1T thing, I was telling nearly everyone who posted a thread asking for help with their nForce boards.  One day, someone with a 790i board came along and I told them the same thing.  Minutes later, he came into the thread and taught me that unlike the other nForce boards, the 790i actually does better with the memory overclocked with the Command Rate at 2T, much like Intel chipsets.

 

Impressed, I bowed out of the thread. hehe

 

So yeah, I think I need to leave this up to those who know how to do it.  redface.gif

    
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.384 - 1.392V) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (C:) 250 GB Samsung 840 EVO (D:) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail Samsung 2253BW (1680 x 1050) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Microsoft Intellimouse Optical (not 1.1A) Basic, but premium round 
AudioOther
X-Fi Titanium HD Altec Lansing VS4121 (2.1 speaker system) 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.384 - 1.392V) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (C:) 250 GB Samsung 840 EVO (D:) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail Samsung 2253BW (1680 x 1050) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Microsoft Intellimouse Optical (not 1.1A) Basic, but premium round 
AudioOther
X-Fi Titanium HD Altec Lansing VS4121 (2.1 speaker system) 
  hide details  
Reply
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