Last night I reflashed my bios back to S2Z2 from 80 ....so I had to do all my setting over again..temps outside are already getting crazy warm here so I decided to just keep my cpu at 4.2Ghz ...Sadly it took more vcore than it had before....1.37v on load to get folding stable...still thats much better than my normal 1.44v for 4.3Ghz....Sucks im on water so I know my volts might not work for you..Im running 6Gb of G.Skill PIs at 1600Mhz 6-8-6-20 1.6v .....I got my uncore at 17x not the normal 16x so my VTT is at +300 (1.5v)...In linx I get in the low 55glfop range... for me messing with the VTT is what messes with the GFlops the most..When im linx stable I usually up the VTT and see how it affects the GFlops than lower it if my GFlops go down etc...
 
....And Flyers beat Buffalo !! Sweeettt!!!!

HalloweenWeed

OK here's the situation v1ral: I'm exactly in the same hole you are in, but I'm stuck at 203 (stable) instead of your 199 (or 197?); and my VTT at that speed is 1.125V, and CPU 1.35Vcore set, actual is a bit lower; 53.26 Gflops, but I got 54.4 Gflops W/202. And I have a little core temp wiggle room (you don't). I've tried seemingly just about everything. I even tried jumping to 211, no luck, BSOD 124 after 40sec every time I run LinX. I cranked it up to CPU 1.4Vcore for that, dozens of settings. Core temps not bad, Vreg not alarming until I reach VTT 1.4V.

No matter what I do, as I raise CPU Vcore above 1.35V the Gflops drop.

But I am very stubborn, don't give up easily. The thing is, I think my prob is also yours, and when I find the solution it may help you too. I may post my own help thread for it, but first I want to transcribe all the settings I have tried to a spreadsheet for ppl to check out, to see just exactly what I have tried and the results for each try. This will take me a few days, perhaps I will do it over the weekend, IDK. I will keep you posted. Hang in there.

 
Have you tried lowered VTT and QPI PLL with the VCore around 1.35? I'm talking between 1.2 and 1.3 QPI PLL and +100 to +175 VTT.

direraptor22

Have you tried lowered VTT and QPI PLL with the VCore around 1.35? I'm talking between 1.2 and 1.3 QPI PLL and +100 to +175 VTT.

Lower than VTT 1.125? BIOSes after mine (2009) can't even set VTT that low. My default QPI PLL is 1.1, yes I tried 1.1, 1.2, and 1.3 in conjunction with VTT 1.125V - 1.4V in many steps, at 207 and 211 Bclock. All I get is BSOD 124 except the one odd 0A. Are you saying I should try less than 1.1V for QPI PLL (I don't even know if that is possible)? When I put these on spreadsheet, you will be able to see exactly all that I have tried, I hope someone has the initiative to actually look it over (there will be maybe a hundred lines of settings).

Also I am wondering if maybe I have a Bclock "hole" problem and just need to jump a little farther than 211 (this "hole" could also be v1ral's prob). If so, I don't know what my settings should be to do so, that's quite a bit faster than 203.
 

ill be test higher frequencies when.I.get off.
I.seem to have gotten my 197 baase clock.tightened up passed 20 passes of .linx so doing a quick.run of.prime while I am at work.
yeah my glfops range from 52-53 is that normal also is there a way to make that higher.

again I honestly think ky temps will hold me back

HalloweenWeed

direraptor22

Have you tried lowered VTT and QPI PLL with the VCore around 1.35? I'm talking between 1.2 and 1.3 QPI PLL and +100 to +175 VTT.

Lower than VTT 1.125? BIOSes after mine (2009) can't even set VTT that low. My default QPI PLL is 1.1, yes I tried 1.1, 1.2, and 1.3 in conjunction with VTT 1.125V - 1.4V in many steps, at 207 and 211 Bclock. All I get is BSOD 124 except the one odd 0A. Are you saying I should try less than 1.1V for QPI PLL (I don't even know if that is possible)? When I put these on spreadsheet, you will be able to see exactly all that I have tried, I hope someone has the initiative to actually look it over (there will be maybe a hundred lines of settings).

Also I am wondering if maybe I have a Bclock "hole" problem and just need to jump a little farther than 211 (this "hole" could also be v1ral's prob). If so, I don't know what my settings should be to do so, that's quite a bit faster than 203.

I'm not here with any earth-shattering news, just a suggestion, as I was in a very similar situation at bclk 208 (I think).
 
Without going into all the gory details, I tried dozens of combinations of VTT and CPU Vcore.  Nothing would help.  101's and 124's all over the place.  For some unfounded reason (based on the BOSD codes, which pointed to VTT and Vcore), I decided to put the RAM at "Auto" settings (which brought me to 11-11-11-30-128 1T) and, VOILA! 20 Linx passes.  HOWEVER, my Gflops were at 52-53.  I set my RAM back at 7-9-8-18-86 and started bumping up the DIMM voltage and had to go from 1.65 to 1.68, but that finally got me stable and got my Gflops up to 65-66.
 
Just a thought.  Since I was stuck "inside the box" with the 101, 124 BOSD codes and, apparently, it turned out NOT to be the VTT or CPU Vcore.

Have you tried 200X20 with all your same settings, but set to "without" v-droop?

techno-mancer

From what I understand, the Gflops (FLoating Point Operations per Second), is an indication of "overall" system performance.

You could, conceivably, end up with a high over-clock and lower Gflops (see the 4.2 club standings and you'll see some members with higher clocks and lower Gflops than the members below them) and have a less "snappy" computer.

Maybe someone else can explain it better, or correct me, if I've misunderstood the information I've read.

 
Unstable voltages from my experience can hinder GFlops. I believe I had a + or -25 VTT bump that made my GFlops go from 54 to 44 one time... lol. Same goes with any other voltages... QPI PLL, VCore, VDIMM, etc.

lulz

v1ral, it is possible your board is undervolting your RAM, and giving you fits as the result. The only way to find out for sure is DMM. You could try giving your RAM 0.5 or 0.75V more to see...

HalloweenWeed


When you raise your VTT up 100 you should try lowering your CPU Vcore back down.

Im not sure what you said no to since this is what you said....

ahhh....got it now Thanks...
With Bios 80 I never had a 4.2Ghz overclock so im not sure what the vtt was/woulda been...but at 4.3ghz it was about +350 and 4.5ghz was about +400 ....

Well guys..
I am stuck on 197 base clock, for temps sake..
I tried goign to 200 base clock.. temps shot up to 93!!:(
I will be getting that water block when funds allow.. gonna be getting the EK LT the newest iteration.

Hey v1ral,
I've had some success - 20 passes LinX @ 207. But the temps are quite high I need to experiment with them to get them down. In the meantime, could you please report what AIDA64 reports under Motherboard --> Spd --> Extreme memory profile --> 800MHz. This is a key to going faster. As an alternative, rafale says CPU tweaker also give the tRFC spec we are looking for.

Field    Value
Memory Module Properties   
Module Name    G Skill F3-12800CL8-2GBPI
Serial Number    None
Module Size    2 GB (2 ranks, 8 banks)
Module Type    Unbuffered DIMM
Memory Type    DDR3 SDRAM
Memory Speed    DDR3-1333 (667 MHz)
Module Width    64 bit
Module Voltage    1.5 V
Error Detection Method    None
DRAM Manufacturer    G Skill
   
Memory Timings   
@ 666 MHz    9-9-9-24  (CL-RCD-RP-RAS) / 33-74-4-10-5-5  (RC-RFC-RRD-WR-WTR-RTP)
@ 592 MHz    8-8-8-22  (CL-RCD-RP-RAS) / 30-66-4-9-5-5  (RC-RFC-RRD-WR-WTR-RTP)
@ 518 MHz    7-7-7-19  (CL-RCD-RP-RAS) / 26-58-4-8-4-4  (RC-RFC-RRD-WR-WTR-RTP)
@ 444 MHz    6-6-6-16  (CL-RCD-RP-RAS) / 22-49-3-7-4-4  (RC-RFC-RRD-WR-WTR-RTP)
   
Extreme Memory Profile   
Profile Name    Enthusiast (Certified)
Memory Speed    DDR3-1600 (800 MHz)
Voltage    1.60 V
@ 800 MHz    8-8-8-21  (CL-RCD-RP-RAS) / 30-60-2-6-10-6-6  (RC-RFC-CR-RRD-WR-WTR-RTP)
   
Memory Module Features   
Auto Self Refresh    Supported
Extended Temperature Range    Supported
Extended Temperature Refresh Rate    Not Supported
On-Die Thermal Sensor Readout    Not Supported
   
Memory Module Manufacturer   
Company Name    G.Skill International Enterprise
Product Information    http://www.gskill.com/products.php

okay i am lost, what was the point of the memory specs?
anyways..i will try again,ive reread this whole thread and i sorta see what i am doing wrong.
i have my qpi pll at 1.275 for 197 base clock vtt is at 250 or was it 200 i dont remember. but my question is this my vreg temps never reach past 60c is that good?
also if i raise it a bit will it affect my core temps... i wouldnt see why it would but messing with vtt changes core temps cause its tied to the imc.
i actually got a 4.0 overclock that is 20 pass linx stable temps were around 74c, with higher gflops than my 4.1 stable overclock. can some chime in on this. should i dial in qpi pll and vtt of my 4.1 then work my way straight to 4.2 and beyond