E6750 & Gigabyte P35C-DS3R Overclocking Thread

[Conjugal Visit]

You P35-DS3R owners....I'm having real difficulty with bios versions and Ram voltage on this board. I realize the similarities with the P35C - overvolting etc - but I'm struggling. The downstairs family computer uses the P35-DS3R, and I'd had it, since the install, at a nice O/C of 3.2GHz, by setting Ram to 400FSB at 1:1 - stable in memtest and Orthos. Ram voltage set to +0.3. Then, foolishly it would appear, I go and update the bios. Since the update, I'm not stable any longer. These are the particulars:

Rig has Corsair, 2gb, 6400C4, and I'd set it it to DDR 800. At that speed, and at 4-4-4-12 timings, Corsair suggests 2.1v. Whatever the original bios version was, this was no problem - set voltage to +0.3. Now, I can't. +0.3v gives me somewhere around 2.0, which isn't enough to run stable - crashes Orthos in the blend test - but +0.4v won't post.

Unlike the P35C that is in my sig, and that I play with all the time, the P35 bios versions seem to undervolt, not overvolt. Anyone have any suggestions/feedback on the various bios versions for the P35? Currently, I've set the P35 board to 5-5-5-18 timings and left voltage at default. Perfectly stable now at 3.2GHz at 1:1 (400FSB) but I'd like to tighten the timings.

Regards,

 

[mrfatboy]

Originally posted by: JasperJ
I just startedoverclocking on my DSR3 (using an E2160 until Penryn arrive) and a question on memory settings.

I was having random errors in Orthos until I made the memory settings manual and set to 5 /5 /5 /15 and the multiplier 2.0. However Refresh to ACT Delay showed 52 0 and there was no auto value. I changed it to 52 and since it's been stable (along with the other changes).

Looking through the thread I noticed that MrFatBoy has Refresh to ACT Delay set at 42 and ConjugalVisit has it set to 0. ???

Is this even something to care about?

Maybe I'm still asleep or something but I just looked back at my OP (bios 2) picture. My Refresh to ACT Delay is set to 0 not 42. Did you confuse Conjugal and my bios readings?

I didn't touch my Refresh to ACT Delay either. Those are default settings for me.

I'm not sure what 's going on. I'm stable with setting at "0" tho

 

[Conjugal Visit]

@mtfatboy - he did get confused then. My config, posted on page 9, shows Refresh to ACT delay at 0, and it had always been there, no problem. As stated above, I've changed it to 42 because I don't have any other info, except MaDMvD above me, though he seems to suggest this setting was contributing to instability when he dropped below 35. Heck, I was at zero - you too! So I don't know what to do on this subject.

 

[MaDMvD]

@Conjugal

The 0 setting may be similar, if not the same as auto, whereas 1 or more may actually place a value on the ACT delay. As for the best P35-DS3R BIOS, I would say F9, hands down. At +0.3v, I get 2.11v and at +0.4v, I get 2.24v. They also seem to have fixed the "smart fan" idle speed in this release - if you have smart fan enabled at all.

 

[Conjugal Visit]

@MadMvD - thank you for your reply on the bios. I'll try F9 again - perhaps I'm going to have to go thru the motions of shorting out CMOS and removing the battery for it to hold, etc.

Back to Refresh to ACT - again, you're right with what you've said there. 0 (zero) isn't auto. It's just that when you go to Manual timings, that line of values on the left in White? It seems to default to 0 there - other values above it do say Auto. I should not assume that that value in White is the same as Auto, but I always did. The interesting thing, tho, is that that value seemed to effect your stability, and in my case, and mrfatboy's case, it had no impact (that we know of.)

Regards,

 

[MaDMvD]

When I set that value to something too low, I couldn't even POST. I guess I should have elaborated on what I meant by instability. I haven't actually tried putting a 0 in, I might have to see tonight what would happen then. I also went down from 42 to 40, then to 35 - mostly in increments of 5. For example, 35 is stable and 30 wouldn't POST, however, I did not try 31-34. Honestly though, I don't think it's even worth messing with any of those settings until we can find a reputable and detailed source. Not only that - chances are the performance benefits of tweaking those settings would be negligible.

Maybe we can post a topic here and ask the Gigabyte rep (Janus Yeh):

http://forums.tweaktown.com/forumdisplay.php?f=69

 

[mrfatboy]

Originally posted by: MaDMvD

Maybe we can post a topic here and ask the Gigabyte rep (Janus Yeh):

http://forums.tweaktown.com/forumdisplay.php?f=69

Don't make me laugh . The only answer that comes out of that forum is

"have you tried the latest bios?"

 

[MaDMvD]

Don't make me laugh . The only answer that comes out of that forum is

"have you tried the latest bios?"

:laugh: That's true, but there's always a very slight chance someone else may have some information about it.

 

[Conjugal Visit]

@MadMvD - I sure wish I could get the same results with ram voltage that you're getting with F9. It's not happening for me. If I apply +0.3, my results are 0.206, which doesn't appear to be enough to get me stable at 4-4-4-12 @ 400FSB. If I then apply +0.4, I never get to windows. I can't imagine it has anything to do with the board - I'm running rev 2.0 versus your 1.0.

Never had these issues with the P35C-DS3R - my main rig. Oh well. I'll simply run the "family machine at 5-5-5-18 and normal voltage, which is SPD stock.

Regards,

 

[mrfatboy]

I found this post on another forum. It has everything you wanted to know about temps with this chip.


Long answer: Temp Guide

Short answer (copied from link):

Scale 1: Duo

E4x00: Tcase Max 73c, M0 Stepping, Tjunction Max 100c, Vcore Default 1.325, TDP 65w, Delta 10c
E2xx0: Tcase Max 73c, M0 Stepping, Tjunction Max 100c, Vcore Default 1.312, TDP 65w, Delta 10c
E6x50: Tcase Max 72c, G0 Stepping, Tjunction Max 100c, Vcore Default 1.350, TDP 65w, Delta 10c
E6540: Tcase Max 72c, G0 Stepping, Tjunction Max 100c, Vcore Default 1.350, TDP 65w, Delta 10c

-Tcase/Tjunction-
--70--/--80--80-- Hot
--65--/--75--75-- Warm
--60--/--70--70-- Safe
--25--/--35--35-- Cool

 

[lenjack]

deleted

 

[mrfatboy]

What board do you have? p35C or P35? Also, depending on the website --- tw, US, international they can have different versions. Why? I have no frigg'n clue. I can only assume that all the Gigabyte divisions are not talking to each other. Typical for a big corporate company.

This thread is about the P35C board.




Edited!!!!!!

I guess lenjack figure out his problem

 

[CDC Mail Guy]

Originally posted by: mrfatboy


BIOS pic 1
BIOS pic 2

Bios Setup
-----------------
Robust Graphic Booster Auto
CPU Clock Ratio 8X
CPU Host Clock Control Enabled
CPU Host Frequencey (mhz) 450
PCI Express Frequency (mhz) 100
C.I.A.2 Disabled
!! Performance Enhanced with Turbo
System Memory Multiplier (SPD) [2.00]
Memory Frequency (Mhz) 800 900
High Speed Dram DLL Settings [option 1]
DRAM Timing Selectable (SPD) [manual]
CAS Latency Time 5 [4]
DRAM RAS# to CAS# 5 [4]
DRAM RAS# Precharge 5 [4]
Precharge delay(tRAS) 18 [12]
ACT to ACT Delay (tRRD) 3 [Auto]
Rank Write to READ Delay 3 [Auto]
Write to Precharge Delay 6 [Auto]
Refresh to ACT Delay 42 [0]
Read to Precharge Delay 3 [Auto]
tRD 7 [Auto]
tRD Phase Adjustment 0 [Auto]

System Voltage Control [Manual]
Ddr2/ddr3 OverVoltage Control [+.3V]
PCI-E OverVoltage Control [Normal]
FSB OverVoltage Control [Normal]
(G)MCH OverVoltage Control [+0.1V]
CPU Voltage Control [1.45000]
Normal CPU Vcore 1.35000V

Fixed

 

[bmf79]

Hello all, I have been a lurker here for about a week and read so many pages of this forum, so here it goes. This is my first pc build (parts listed in sig) and I have never OC'd a pc before. I played around with some of the setting that I have seen in this forum and haven't had much sucess. It could be that I was trying setting that were too aggressive and that I should have gradually increased speed, etc. I tried setting the processor to 3.0 Ghz and changed memory timing to 4-4-4-12 from 5-5-5-18. After trying severl different configurations, ways to do this I have not had much luck. After one attempt, my PC froze on the windows loading screen. After the memory timing change the pc seemed jumpy to me, and it froze each time I changed the processor speed. I tried changing settings in the Bios and with Easytune 5. I have decided I really don't care for Easytune and prefer using the Bios method. In all attmepts I never change any of the stock voltage setting, since I don't know what I'm doing and don't want to fry something. I am waiting for New Egg to deliver my PC Power & Supply Silencer 750 and I will replace the Earthwatts 500. Nothing wrong with it, just should have bought this last week when I started. You all seem very knowledgeable and have had much sucess with overclocking so I come to you for help. Anyone want to take a newb under his/her wing and share the OC knowledge? I am very eager to learn and see what my new PC can do.

 

[MaDMvD]

Originally posted by: bmf79
I tried setting the processor to 3.0 Ghz and changed memory timing to 4-4-4-12 from 5-5-5-18. After trying severl different configurations, ways to do this I have not had much luck. After one attempt, my PC froze on the windows loading screen. After the memory timing change the pc seemed jumpy to me, and it froze each time I changed the processor speed.

First of all, welcome. I'm sure you will be able to overclock just fine with a little more knowledge. I'm actually surprised to hear you haven't been stable at 3.0GHz with Corsair RAM. You stated you tried 3.0GHz @ the default voltage, which should be achievable, yet you could not boot into Windows? Try leaving your memory settings at stock values (timings and such) and just upping the speed of the FSB in 25MHz steps. At 3GHz (using 375 x 8), your RAM should be running at 900MHz, which should easily be achieved with your XMS2 stick. If not, you may want to run some Memtest sweeps on that RAM, or simply add some voltage. As far as frying your E6750 - not likely unless you start messing with 1.5v+. You shouldn't need anything more than 1.375v for 3.0GHz though, so set it to that and if it's stable, go back find out the least amount of voltage you are stable on (using Orthos). I'd say anything up to 1.45 is safe for extended usage, although obviously, the less current, the less amount of heat. By the way, what CPU cooler are you using. If you're still on stock, I wouldn't go much beyond 3.2GHz. Let us know!

 

[bmf79]

Ok, I'll give that a shot and let you guys know. Thanks for the info. FYI, I'm still using the stock CPU Cooler. I thought about switching it, but I'm not sure if I really need to being that (1) I'm not sure how much I plan on pushing the processor since this is my first OC experience and (2) I'm not sure how to remove the stock CPU cooler from my mobo. I paid to have a post test at store of purchase, so I didn't install the CPU or fan cooler. I know that there are the tabs that go through the mobo once pushed down, but I'm not sure how to remove them. If I did switch I would definitely buy a Zalman CPU cooler. BTW, where can I get Orthos?

 

[mrfatboy]

Welcome to the forum!

Your rig should be able to do 3.0 or most like 3.2 without any effort and it should do it on stock voltage.

Robust Graphic Booster Auto
CPU Clock Ratio 8X
CPU Host Clock Control Enabled
CPU Host Frequencey (mhz) 400
PCI Express Frequency (mhz) 100
C.I.A.2 Disabled
!! Performance Enhanced with Turbo
System Memory Multiplier (SPD) [2.00]
Memory Frequency (Mhz) 800 800
High Speed Dram DLL Settings [option 1]
DRAM Timing Selectable (SPD) [manual]
CAS Latency Time 5 [4]
DRAM RAS# to CAS# 5 [4]
DRAM RAS# Precharge 5 [4]
Precharge delay(tRAS) 18 [12]
ACT to ACT Delay (tRRD) 3 [Auto]
Rank Write to READ Delay 3 [Auto]
Write to Precharge Delay 6 [Auto]
Refresh to ACT Delay 42 [0]
Read to Precharge Delay 3 [Auto]
tRD 7 [Auto]
tRD Phase Adjustment 0 [Auto]

System Voltage Control [Manual]
Ddr2/ddr3 OverVoltage Control [+.2V]
PCI-E OverVoltage Control [Normal]
FSB OverVoltage Control [Normal]
(G)MCH OverVoltage Control [Normal]
CPU Voltage Control [1.35000]
Normal CPU Vcore 1.35000V



Try these settings in your Bios. This would be a 3.2 OC at 1.35v and vdimm 2.1v @ 4-4-4-12 timings.

You can post some screen shots of your bios so we can see how you are setup.


good luck

 

[bmf79]

@ MFB
Ok, tried your settings. This is what I'm experiencing. I set the System Memory Multiplier to 2.00 but the Memory Frequency said this 800 667 not 800 800. I changed it to 2.40 and then it said 800 800. I do not have an option that says High Speed Dram DLL Settings. I'm not sure how to print out a screen shot of my BIOS. How do I know if my pc is overclocked? I have CPUZ but it shows factory CPU speed and memory timing.

 

[mrfatboy]

Make sure your settings look like I stated above, especially the following

CPU Host Clock Control Enabled
CPU Host Frequencey (mhz) 400
PCI Express Frequency (mhz) 100
C.I.A.2 Disabled
!! Performance Enhanced with Turbo
System Memory Multiplier (SPD) [2.00]
Memory Frequency (Mhz) 800 800


To take a screen shot you would need a digital camera then post it. That's what I did.

Let me know how that works for you.

 

[bmf79]

How do I post pic?

 

[bmf79]

Here you go.

http://i269.photobucket.com/al...1/bmf79/Picture005.jpg

http://i269.photobucket.com/al...1/bmf79/Picture004.jpg

http://i269.photobucket.com/al...1/bmf79/Picture003.jpg

http://i269.photobucket.com/al...1/bmf79/Picture002.jpg

http://i269.photobucket.com/al...1/bmf79/Picture001.jpg

 

[fausto412]

Originally posted by: bmf79
@ MFB
Ok, tried your settings. This is what I'm experiencing. I set the System Memory Multiplier to 2.00 but the Memory Frequency said this 800 667 not 800 800. I changed it to 2.40 and then it said 800 800. I do not have an option that says High Speed Dram DLL Settings. I'm not sure how to print out a screen shot of my BIOS. How do I know if my pc is overclocked? I have CPUZ but it shows factory CPU speed and memory timing.

to take screen shot of your bios....you get a digital cam and snap one! lol

dude, you jumping into this the wrong way...you sure u did your reading?

anyways, if you set your fsb to 400 and your ram multiplier to 2.0 then it is impossible for ram to show 667.
fyi 400x8 gives you 3.2ghz. 375 fsb x 8 cpu multiplier gives you 3.0 ghz.
you should be able to do that on stock volts...i did 3.4 on stock voltage.
do some more reading before you fry something.

go read at
http://www.xtremesystems.org/f...howthread.php?t=142340
http://forums.anandtech.com/me...AR_FORUMVIEWTMP=Linear
http://forums.anandtech.com/me...AR_FORUMVIEWTMP=Linear
and
http://www.hardforum.com/showthread.php?t=1169366
this one will get you primed on how your bios works.

if you still have questions...then ask.

 

[fausto412]

ok, saw your pics, you do not have cpu host clock control enabled. it needs to be enabled for it to be effecting and the ram and cpu to be overclocked. set your ram timings back to stock settings and leave on auto. if you want low timings you have to buy ram that's rated for performance. 5-5-5-18 is not what i would call performance ram.

 

[mrfatboy]

@bmf79
lol, hmmmm, I gave you exactly what you needed to change in your bios. From your pics that you posted you did not make the changes. Make the changes I suggested and then start from there. Reading what Fausto gave you would be a good idea also

Whatever you do... Don't put 1.75 in the CPU overvoltage control, lol, :laugh:


@fausto
I thought Corsair XMS2 would do 4-4-4-12 timings. Maybe I remembered incorrectly.

 

[fausto412]

Originally posted by: mrfatboy

@bmf79
lol, hmmmm, I gave you exactly what you needed to change in your bios. From your pics that you posted you did not make the changes. Make the changes I suggested and then start from there. Reading what Fausto gave you would be a good idea also

Whatever you do... Don't put 1.75 in the CPU overvoltage control, lol, :laugh:


@fausto
I thought Corsair XMS2 would do 4-4-4-12 timings. Maybe I remembered incorrectly.

well, i don't know the ram spec but that motherboard is detecting pretty loose timings. loose timings would make it easier to be stable right away. he can set them at spec too