Mode F3-16000CL9T-6GBRH with Evga X58 SLI MoBo

[TorqueT1]

Hello.. I sent a email to G.Skill about this issue last week but got no response yet..

Anyways I have the F3-16000CL9T-6GBRH from Newegg Link ->http://www.newegg.com/Product/Produc...82E16820231306
And I have the Evga X58 SLI Motherboard and the Intel Core i7-930 Bloomfield 2.8GHz

My question is simple I would like to know how to change my bios without messing something up, To the right specs the memory is labeled for at 9-9-9-27-2N my Bios shows the memory as 8-8-8-20

Here is my Screen shots...




If A G.Skill worker can tell me what to change on my screen shots I'd be thankful.

[GSKILL TECH]

CPU Clock Ratio - 17X
CPU Host Frequency - 167
CPU Uncore Frequency - 4000
Spread Spectrum - Disabled

Memory Feature (submenu)
Memory Control Setting - Enabled
Memory Frequency - 2000MHz / 2:12

tCL Setting - 9
tRCD Setting - 9
tRP Setting - 9
tRAS Setiing - 27
Command Rate - 2T
The rest can be AUTO.

Voltage Control (submenu)
CPU VCore - 1.30V
CPU VTT Voltage - +250mV
DIMM Voltage - 1.60V

CPU Feature (submenu)
Intel SpeedStep - Disabled
Turbo Mode Function - Disabled
CxE Function - Disabled
Execute Disable Bit - Enabled
Virtualization Technology - Enabled

Intel HT Technology - Enabled
Active Processor Cores - All

QPI Control Settings - Enabled
QPI Link Fast Mode - Enabled
QPI Frequency Selection - AUTO

Thank you
GSKILL TECH

[TorqueT1]

I'm still a learner when it comes to messing around with the bios but the changes you told me to do for my CPU it won't downgrade my system will it?

[GSKILL TECH]

Downgrade?? never from us! We only help you upgrade!

Thank you
GSKILL TECH

[TorqueT1]

I was in my bios today trying the change but my CPU Uncore Frequency can't be 4000 exactly It has the option for 4016 (24 x). Also when I changed my CPU clock ratio from 21 to 17 like you said my target cpu frequency droped from 2933 down to 2844.. would that make my cpu slower then before?

And my Memory Frequency - 2000MHz / 2:12 doesn't have that option either in my Bios is says 1600Mhz / 2:12, The closest one to 2000Mhz is 2133Mhz / 2:16. =(



Got some before and after photos..

Here is before the change


and now after the bios changes, I guess the memory seems faster but my cpu speed lowered it looks like to me.

[TorqueT1]

well I did the change and did a intel burntest and I got this blue screen instantly =(

[GSKILL TECH]

Yes, frequencies will always be slightly off as they are not precise numbers. Well, technically they are too precise but the BIOS just doesn't show it, it just rounds up.

OK, so yea since you were using the 22X CPU Ratio, you were slightly overclocked, so I had you revert them back to default. You can simply raise it later.

12X is the ratio. So initially 133 x 12 gives you 1600. But if you set BCLK to 167, 167 x 12 gives you the 2000.

In addition to all this, you need to find the stable CPU VTT Voltage at your target memory frequency.

Once that is complete, everything will be stable.

Also, try not to use large pictures, it's difficult to follow. =)

Thank you
GSKILL TECH

[TorqueT1]

Sorry I couldn't find a way to resize the pics.

But all that seems pretty confusing to me just to get the right timings and stuff.. I've never overclocked or underclocked a thing in my life. I'd rather just consider buying different RAM or something.

[GSKILL TECH]

Well, you just don't need to operate at such high frequency. Set it to DDR3-1600 with 7-7-7-21 timings and this would be just as fast without the headache of finding the precise memory controller voltage necessary.

Thank you
GSKILL TECH

[wevsspot]

Dear GSkill Tech.
Just a couple of questions relative to his settings. You recommended a vdimm of 1.60v, my original kit came rated at 1.60v (according to the sticker on the RAM), but the very latest kit I purchased earlier this week came rated at 1.65v

It has been my experience that at anything over 1900Mhz a minimum of 1.62-1.65v is necessary to hit 2000Mhz

I also have a question about uncore frequency. I've always read and followed the golden rule that uncore frequency should be exactly twice DRAM frequency. Is there a particular reason that you recommend 4000?

I know that eva did some testing showing that higher uncore frequencies could help improve performance a little bit, but at the cost of stability.

Last but not least, on the three kits of this RAM i've purchase I have had to run a 3N command rate at the higher frequencies or my particular combination wont boot at all.

Following this particular kit of RAM on the net (and the Tridents as well) the eVGA boards don't seem to respond too well to high CPU VTT, exactly the opposite of most other motherboards.

Just my thoughts and hope that it helps.

[TorqueT1]

Well, you just don't need to operate at such high frequency. Set it to DDR3-1600 with 7-7-7-21 timings and this would be just as fast without the headache of finding the precise memory controller voltage necessary.

Thank you
GSKILL TECH

When you say set it to DDR3-1600 do you mean Memory Frequency - 1600MHz / 2:12?

[wevsspot]

I'm not the GSkill tech, but yes that's exactly what he is saying. You can approach the bandwidth and latency performance of this kit operating at 9-9-9-27 2N or 3N/2000Mhz by tightening the timings and running it at 7-7-7-21 1N/1600Mhz.

I've tested the kit both ways and benchmark performance is within fractions with the slight nudge going to the high frequency bandwidth. But the rigs actually feel "snappier" at 1600Mhz and 7-7-7-21 1N timings.

[TorqueT1]

Ok thanks for the advice. So to make it clear I'll set my settings to


Memory Frequency - 1600MHz / 2:12

tCL Setting - 7
tRCD Setting - 7
tRP Setting - 7
tRAS Setiing - 21
Command Rate - 1T
The rest can be AUTO.

DIMM Voltage - 1.60V


and everything else I'll leave as default?

[wevsspot]

You got it

[wevsspot]

Check post #4 at this thread here for an Everest shot of my memory (same as yours) running at 1900Mhz 8-9-8-24 3N timings.

http://www.gskill.us/forum/showthread.php?t=5919

It will give you a baseline to compare to.