E2160 OC on GA-G41-ES2L memory multiplier

Intel core 2 / Choice between:
October 28, 2010 at 22:55:25
Specs: Windows 7, E2160 OC:2.38 / 4Gb RAM
I have an overclock question that I have not been able to see a way around (it's possible this board it too limited).
GA-G41-ES2L, E2160 and 4GB (2x2GB) Kensington DDR800 (I can look up which one if relevant)
Mainly, I cannot get the Ratio to 1:1. I can bring the speed up to 300 giving me 300x9=2700 and I am not complaining about the 2.7GHz on the processor, but with the 'System Memory Multiplier, there are only 4 options: Auto, 2.66c, 3.33c, and 4.00c. With the speed at 300 and the memory multiplier at 2.66c that gives me DDR800 which is safe for my memory, but gives me a Ratio 3:4. Now this appears to be running OK, but EVERYONE indicates that 1:1 is much better. The BIOS does not allow me to directly set the memory base speed so I cannot lower it more to begin with, but I would need an option of a memory multiplier of 2.00c. With that I would be able to lower the CPU multiplier and begin again with a speed of 400 and get a DDR800 at a 1:1 Ratio and just find a comfortable multiplier for the CPU to run at.
My individual RAM timings are on auto, but they are at factory specs for the RAM (5,5,5,18) and I do not know enough about those to play with them. Speedfan SPD lists 2 possibilities:
JEDEC#1 270MHz 4,4,4,13,15 1.8V and JEDEC#2 400MHz 5,5,5,18,22 1.8V
I do not know if the alternate settings listed here would help or hurt, it would appear that it would slow the RAM, but I do not know if it could achieve the DDR800 (or even DDR667/333) that I want to optimize this combination. Or would setting them to manual,but leaving the current settings make a difference.
[I have another computer I built after this one that uses the better GA-EP43-UD3L with an E8200 and DDR800 that sets up perfectly at 400/1600FSB DDR800 3.2GB and that one uses a memory multiplier, but it offers the 2.00c option so it was easy]
WAIT: I just realized that this board only supports FSB1333 - - - So I should still would be happy with DDR667/333/1333 IF optimizing is really THAT important, BUT how can I achieve that with this combination... How do I set up the RAM correctly... Or do I settle for a Ratio of 3:4 (300x9=2700 and 400/800DDR)????
Any thoughts?
I am sorry if I rambled a little...

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See More: E2160 OC on GA-G41-ES2L memory multiplier

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#1
October 29, 2010 at 03:41:57
mem mult=ram speed (ddr) / cpu freq (actual)
There is no way u can set mem multi to 2 (unless u have 1333fsb cpu and ddr2 667).
ratio 3:4 isn't bad (atleast memory is faster than cpu external speed)
cpu: 300 x 4 x 64 / 8= 9600mb/s
ram: 400 x 2 x 128 / 8= 12800mb/s (i assume u are running dual channel)
also 2.7ghz isn't bad for e2160

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#2
October 29, 2010 at 04:55:13
Thank you. It 'felt' like it was running well and I am not really looking to push it any higher, I was just trying to 'optimize' the ratio. It sounds like it is about where I want it to be: fast and stable. Since I tried 2.7ghz (about 2 weeks now), I only had one restart apparently by itself (I was not around at the time), so I upped the Vcore by the smallest available amount and it appears to be stable (about 3 days). This is my 'general purpose family computer' that everyone goes to for 'every little thing' so real life stability is most important on this system. Thanks again.

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If all else fails, read instructions.


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#3
October 29, 2010 at 06:06:17
Are you sure your board's model number is GA-G41-ES2L? There's no such model at the Gigabyte site. Could it be GA-G41M-ES2L? Which revision is it? Which BIOS version are you running? According to what I've read, there *should* be a BIOS setting for "(G)MCH Frequency Latch" that has to be adjusted, then the 2.00 Memory Multiplier will appear.

Your CPU will easily do 3.0GHz (9 x 333MHz). Try updating your BIOS.


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#4
October 29, 2010 at 07:16:20
Yes, I accidentally left off the 'M' from the model number. I will look into the version and the BIOS version as well as look for the "(G)MCH Frequency Latch". Thank you.

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If all else fails, read instructions.


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#5
October 29, 2010 at 07:42:43
OOPS!! I actually mixed up the numbers on the 2 different boards I have from them. The actual model number is: GA-G41M-ES2H - Sorry. The version is Rev 1.0 and BIOS version is F1. I unfortunately cannot find the "(G)MCH Frequency Latch" so it probably is not on this model/version. There is an F2 BIOS version available, but they only list the addition of support for quick charging iPhones, etc. Do you think this will also give me those other options? Is it worth the risk of a BIOS update (I have updated other BIOS before, for specific other reasons)?

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#6
October 29, 2010 at 10:00:27
that the problem with cheap boards (g31, g41 etc). Friend of mine own asrock g31m-s with e2220 and 1.5gb ddr2 667. I tried to oc his system and i fail (bcause i can't underclock memory) later i found out about mem mult (in his case minimum mem multi was 3.33). u will never find mem mult issues with perfomance boards (p35, p45).

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#7
October 29, 2010 at 10:46:50
Ff the Memory Multiplier choices are tied in with the CPU Frequency setting, having it set to 300MHz *should* be the same as having it at 266MHz, therefore the 2.00 multiplier isn't an option. However, if you set the CPU Frequency to 333MHz, the 2.00 multiplier *may* become an option.

Try these settings temporarily:

CPU Clock Ratio = 8x
CPU Host Clock Control = enabled
CPU Host Frequency (Mhz) = 333
PCI Express Frequency (Mhz) = 100
Performance Enhance = standard

Save these settings immediately, then check the multiplier options:

System Memory Multiplier = 2.00?


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#8
October 29, 2010 at 12:58:32
I tried those settings and the RAM speed was over 800DDR2, but I did not think to save them and then reopen the BIOS without allowing to fully post to check to see if the multiplier options changed. I will give this a try and hope there is not RAM damage if I open it right back to the BIOS set up.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#9
October 29, 2010 at 13:47:17
I tried them, but there is no change. I still only get 2.66 as the smallest multiplier option and the system is trying to run the RAM at a setting that is too high. Granted that getting faster RAM would allow me to try 333/1333FSB (board max) and 3.0GB, but it will not get me the better Ratio I am looking for and I am not really trying to push for any maximum, just fast and stable (not to mention the money I would waste for no significant improvement).
Another thing that is annoying about this board, the GA-G41M-ES2H only runs the PCIe 16x graphics slot at 4x speed when the GA-G41M-ES2L version runs it at the full 16x speed and that is the board I intended to purchase.... Oh well. Way too late now.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#10
October 29, 2010 at 21:19:28
I guess that with this board, it's memory multiplier, it's retarded graphics interface (XFX-GTS9600), I cannot expect much more out of this system. If it remains stable as it appears to be, it will be a good fit for my purposes.
At the time, I thought I could get away with the onboard graphics, thereby saving a little money (not good enough graphics and I understand now that OC'ing is not really possible with the onboard graphics anyway), otherwise I would have gone for the P43 board with no onboard graphics but better chipset for maybe $20. more.

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If all else fails, read instructions.


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#11
October 30, 2010 at 01:00:12
Hey i have the idea but i don't know if it will work or not.

U have ddr2 800 and e2160 (fsb 800), find a ddr2 400 and install it with ddr2 800 (this will force ddr2 800 to run @ ddr2 400 in otherwords mem mult will be 2) then pump cpu freq to (333 x 9), ram should run at 667 ddr save settings and exit bios, immediatly shutdown the system and remove ddr2 400 stick then start the system go to bios and check mem frequency.


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#12
October 30, 2010 at 09:04:46
I did a little digging & found the following explanation for the memory multiplier & "(G)MCH Frequency Latch" relationship. I hoped that by changing the CPU frequency to 333MHz, the BIOS would consider it to be a 1333MHz FSB CPU & enable the extra multipliers, but obviously it doesn't work that way. It appears that the BIOS auto-detects the default CPU FSB & uses that to determine the A, B, C, D / multiplier options.

http://www.overclockers.com/forums/...

I wonder if there's a mod that would trick the BIOS into thinking you have a 1333MHz FSB CPU?


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#13
October 30, 2010 at 16:09:38
Jam,
So according to that chart, I will only get the 2.00 multiplier if I use a 1333FSB CPU, but although I have more options for the multiplier (2.00 & 2.40 will give me 667DDR2 and 800DDR2) , I will not be able to OC the CPU due to the higher FSB. Or a 1066MHz CPU and get a 2.50 multiplier and run it at 320 for 800DDR2... not much better.
Thank you very much for all of the input and research. I will probably run this one just where it is.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#14
November 1, 2010 at 20:22:20
I was looking to see if I could pick up a good buy on another CPU....
The first one I came across: E6850 3GHz 1333MHz 4MB L2 cache (currently $31.)
The second one is: E8400 3GHz 1333MHz 6MB L2 cache (new@$79.)
Then I found this one: X6800 2.93GHz 1066MHz 4MB L2 cache (currently $108+)
What do you think about it/them? The Extreme twin core with unlocked multiplier? It is an extreme though an older one, it leaves room for OC'ing if needed, it has a decent cache, it reportedly has an unlocked multiplier (default 11).
Thoughts.....

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#15
November 1, 2010 at 22:15:40
core 2 duo e8400 (wolfdale) outperform both cpu listed. Are u sure it's $79 US?

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#16
November 2, 2010 at 06:05:47
Never mind, our refrigerator was at 60 degrees this morning and we are going out to purchase a new one this morning..... The computer is running fine so I cannot justify the expense right now.
Kuwese: Yes, it is up for bidding on ebay and as of now has a few more hours left. The seller has a 100% rating by buyers if you are interested. (I paid more than that for an E8200 a couple of months ago, pricing Tigerdirect and Newegg)

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#17
November 8, 2010 at 11:18:42
UPDATE:
I have been researching and reasoning this out for the past week (and before that) and decided that the E8400 (E8200-E8600) would be about the most I could use in a dual core considering the limits of this board IF I left it at stock settings (no OC overhead left on this board). I then turned my attention to the E7500 (E7400-E7600) and calculated that I would still have a reasonable amount of overclock headroom. I looked around and found that the E7xxx's were still very close to the E8xxx's in price range. After Googling around to see others OC experiences with this CPU series, I accidentally ran into a sale on the E7500 at MicroCenter (89.00+tx for the boxed version), I ordered it on line for pick up on long island.

Right now I am running it at: 320x11=352GHz with 320x2.50A= 800MHz DDR2 at stock voltages. This is a major improvement that I can already see over the E2160 since I hit the board's limits for that CPU. I know that I am not running the memory in sinc', but I am having a hard time rolling back my memory speed.

Next Week I may try: 333x10.5= 3.4965GHz, then 333x11=3.663GHz, if I can get myself to try the memory at 333x2.00A= 667 MHz DDR2 (Yes, with this CPU, the options for the memory multiplier are: 2.00A, 2.50A, and 3.00A). [unless many believe that I can safely run my Corsair 4096MB PC6400 DDR2 800MHz (2x2048MB) (prior mention of memory above was apparently incorrect memory of mine) at 333x2.50A=832DDR2.... probably not.]

In theory, this CPU should run at 400x11=4.4GHz with memory at 400x2.00A=800MHz DDR2, with the 1600FSB, but I doubt that this board will let me do that (1333FSB should be this board's limit).

*** Any thoughts?.... Any suggestions? ***

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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