Yeah I was thinking the same thing. No point flogging it to death for an extra 100-200 Mhz. I'm really happy with the setup. Took me a little time to fine tune my memory timings but everything is rock solid now. And relatively quiet.
For the P35-DS4 owners out there, a new F6 BIOS has been posted for the DS4. You can find it here:
http://www.gigabyte.com.tw/Sup...ProductName=GA-P35-DS4
I've just installed and benchmarked the F6 BIOS on my DS4. While they state that 'Enhance system performance' is one of the features in the download page, my benchmarks are showing no significant difference...well within the margin of error. Some higher, some lower, but the changes are miniscule.
So no difference from a performance perspective.
http://www.gigabyte.com.tw/Sup...ProductName=GA-P35-DS4
I've just installed and benchmarked the F6 BIOS on my DS4. While they state that 'Enhance system performance' is one of the features in the download page, my benchmarks are showing no significant difference...well within the margin of error. Some higher, some lower, but the changes are miniscule.
So no difference from a performance perspective.
Slackenerny I have a few questions. Btw, Nice overclock.
1. What are your 100% load temps at while you have your 3.4ghz overclock with the 1.39 voltage?
2. I have a E6750 also running at 400 x 8 = 3.2ghz overclock at 1.30 voltage. My ram is in my sig and it's running at 1:1, 800mhz with 4-4-4-12 timings, and my system is rock solid. My 100% load temps get up to about 54-55deg celsius. Do you think I could get a 3.4 ghz overclock with this setup? Air cooled with the AC Freezer 7 Pro.
I'm pretty sure that if I go further I'd probably go above 60deg celsius under load. Is this a bad thing? Too hot?
3. If I go the 425 x 8 route to achieve 3.4, what should I set my memory too as far as the frequency? It's set to 2 right now for the 1:1. Do I need to change that going to 425 FSB?
Thanks for the help.
1. What are your 100% load temps at while you have your 3.4ghz overclock with the 1.39 voltage?
2. I have a E6750 also running at 400 x 8 = 3.2ghz overclock at 1.30 voltage. My ram is in my sig and it's running at 1:1, 800mhz with 4-4-4-12 timings, and my system is rock solid. My 100% load temps get up to about 54-55deg celsius. Do you think I could get a 3.4 ghz overclock with this setup? Air cooled with the AC Freezer 7 Pro.
I'm pretty sure that if I go further I'd probably go above 60deg celsius under load. Is this a bad thing? Too hot?
3. If I go the 425 x 8 route to achieve 3.4, what should I set my memory too as far as the frequency? It's set to 2 right now for the 1:1. Do I need to change that going to 425 FSB?
Thanks for the help.
Originally posted by: joejccva
Slackenerny I have a few questions. Btw, Nice overclock.
1. What are your 100% load temps at while you have your 3.4ghz overclock with the 1.39 voltage?
2. I have a E6750 also running at 400 x 8 = 3.2ghz overclock at 1.30 voltage. My ram is in my sig and it's running at 1:1, 800mhz with 4-4-4-12 timings, and my system is rock solid. My 100% load temps get up to about 54-55deg celsius. Do you think I could get a 3.4 ghz overclock with this setup? Air cooled with the AC Freezer 7 Pro.
I'm pretty sure that if I go further I'd probably go above 60deg celsius under load. Is this a bad thing? Too hot?
3. If I go the 425 x 8 route to achieve 3.4, what should I set my memory too as far as the frequency? It's set to 2 right now for the 1:1. Do I need to change that going to 425 FSB?
Thanks for the help.
1. Load temps for 100% TAT for in-between core sensor are around 55C with an ambient temp of 20C. Inside core temps adjusted +15C are around 67-68C.
2. Are those load temps you quote in-core or between core? Adjusted or unadjusted? Are you at the maximum OC for that voltage?
3. The memory freq is correct. You can't go any lower in divider. Test the memory can take 425 by dropping the multiplier to x6 and Orthos (or new Prime95) blend test overnight.
Originally posted by: Slackenerny
Originally posted by: joejccva
Slackenerny I have a few questions. Btw, Nice overclock.
1. What are your 100% load temps at while you have your 3.4ghz overclock with the 1.39 voltage?
2. I have a E6750 also running at 400 x 8 = 3.2ghz overclock at 1.30 voltage. My ram is in my sig and it's running at 1:1, 800mhz with 4-4-4-12 timings, and my system is rock solid. My 100% load temps get up to about 54-55deg celsius. Do you think I could get a 3.4 ghz overclock with this setup? Air cooled with the AC Freezer 7 Pro.
I'm pretty sure that if I go further I'd probably go above 60deg celsius under load. Is this a bad thing? Too hot?
3. If I go the 425 x 8 route to achieve 3.4, what should I set my memory too as far as the frequency? It's set to 2 right now for the 1:1. Do I need to change that going to 425 FSB?
Thanks for the help.
1. Load temps for 100% TAT for in-between core sensor are around 55C with an ambient temp of 20C. Inside core temps adjusted +15C are around 67-68C.
2. Are those load temps you quote in-core or between core? Adjusted or unadjusted? Are you at the maximum OC for that voltage?
3. The memory freq is correct. You can't go any lower in divider. Test the memory can take 425 by dropping the multiplier to x6 and Orthos (or new Prime95) blend test overnight.
I don't know if the load temps are in-core or between core. I downloaded the .95.4 coretemp beta program which I've been told has the accurate core temps now, and that's what I was seeing as 54c under 100% Orthos blend test load. I haven't adjusted anything, and I manually set my cpu voltage to 1.30 in the bios. However cpu-z reads the voltage as something like 1.26 instead of 1.30. Not sure why.
I'm a little confused on your #3 response. If I bump my FSB to 425 and keep my multiplier at 8 I get 3.4ghz, but if I lower the muliplier like you said to 6, thats only 2.5ghz (425x6). Confused. I was going to keep 425x8 (3.4ghz), but should I keep my ram settings in the bios the same? At the 2 setting for 1:1? I think that doesn't make it 800mhz anymore 1020mhz I believe. That is where I get all confused.
Thanks.
what's the highest voltage you would give the CPU in order to overclock without significantly risking the life expectancy of the e6750? You guys think 1.6v is way too much?
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
I ran mine in bios at 1.64 overnight when I first got it to test my max oc. I had it 3.704, vdroop was down to 1.59. I ran orthos blend for an hour and 2 x seti the rest of the night with no problems. Well, no problems except the neighbors complained that I was heating up the neighborhood seriously, my temps were actually fine, didn't get over 66c on orthos, but I have a tuniq and an antec 900, so my cooling is pretty solid. I have been warned by many people that 1.64 on air is incredibly stupid, so I'll pass it on to you. Most people say actual voltage after vdroop of 1.5 on really good air, 1.55 h20, and 1.60 on tec or other more exotic solutions.
I'm now running at 3.512 at 1.52 in bios and heat is MUCH more reasonable. load temps are 50c with all case fans on low.
seriously, my temps were actually fine, didn't get over 66c on orthos, but I have a tuniq and an antec 900, so my cooling is pretty solid. I have been warned by many people that 1.64 on air is incredibly stupid, so I'll pass it on to you. Most people say actual voltage after vdroop of 1.5 on really good air, 1.55 h20, and 1.60 on tec or other more exotic solutions. I'm now running at 3.512 at 1.52 in bios and heat is MUCH more reasonable. load temps are 50c with all case fans on low.
Originally posted by: joejccva
I don't know if the load temps are in-core or between core. I downloaded the .95.4 coretemp beta program which I've been told has the accurate core temps now, and that's what I was seeing as 54c under 100% Orthos blend test load. I haven't adjusted anything, and I manually set my cpu voltage to 1.30 in the bios. However cpu-z reads the voltage as something like 1.26 instead of 1.30. Not sure why.
I'm a little confused on your #3 response. If I bump my FSB to 425 and keep my multiplier at 8 I get 3.4ghz, but if I lower the muliplier like you said to 6, thats only 2.5ghz (425x6). Confused. I was going to keep 425x8 (3.4ghz), but should I keep my ram settings in the bios the same? At the 2 setting for 1:1? I think that doesn't make it 800mhz anymore 1020mhz I believe. That is where I get all confused.
Thanks.
Ok. The maximum TAT generated temp I would let the in-core temps get to (as measured by your CoreTemp 95.4 would be around 70C. This is equivalent to a around a 55-56C reading from the in-between core sensor. No real use will get as high as TAT so it you stay under 70 on TAT it's fine. Orthos tends to generate 2-3C lower than TAT so you have about 12-14C headroom for overclocking. That's a lot. This means you can safely increase your voltage a bit. You're not even running at stock voltage which is 1.35V for this chip.
The CPU voltage readings are to due with voltage droop which is normal on these motherboards and Intel chips. Don't worry about it.
In regards to comment #3, I suggested that you lower your multiplier so that the CPU is not under strain when raising the FSB. This allows you to evaluate the ability of your RAM to OC independent of your CPU. If you left you're CPU at 8x and you encountered problems at a certain FSB, how do you know if its the RAM or the CPU? By reducing the CPU multiplier you are eliminating that from the equation. Test your RAM independently by increasing the FSB till you know what it can do. Then you can find out what your CPU can do.
Yes. The general consensus is around 1.5V for these chips. Even if you're cooling is good, there is a thing called 'electromigration' (see here http://en.wikipedia.org/wiki/Electromigration) which in basic terms means that the more voltage you pump though your chip, the shorter its life before strange stuff starts happening (see here for example of what can happen http://en.wikipedia.org/wiki/E...ric_Dreams_%28film%29).
So I'd bring it down a bit. But that's just me. If you're really going to run it at 1.6V then lap the thing for better heat transfer as you won't be able to sell it later (in good conscience anyway).
Originally posted by: bryanW1995
I ran mine in bios at 1.64 overnight when I first got it to test my max oc. I had it 3.704, vdroop was down to 1.59. I ran orthos blend for an hour and 2 x seti the rest of the night with no problems. Well, no problems except the neighbors complained that I was heating up the neighborhood
I'm now running at 3.512 at 1.52 in bios and heat is MUCH more reasonable. load temps are 50c with all case fans on low.
I can't say 1.64V on air isn't a lot. See my post above for details. 1.52V in BIOS sound much better.
Hi!
Nice overclocks.
I found this thread through Google as I just build my new system yesterday.
I am a newbie overclocker so I wanted to ask some advice.
My system:
Intel Q6600
Gigabyte DS4 P35
Corsair 6400C4 CL4 memory (4x 1gig) (a real narrow fit because of the sidepanel on it)
Enermax 720 w PSU
Thermatake Mozart cabinett (5 fans so plenty of cooling)
Zalman 9500LED Aircooler
(Several harddrives and one dvd-burner)
Gainward 8600GTS (I am not really a gamer)
I know my way around the BIOS and computers but I havn't overclocked muchbefore (past ten years at least)
Since I am a real newbie I wanted to ask what kind of values I would have to change to reach 3.2 Ghz of a stable build and how I should overclock my memory.
ATm I have changed the CPU multiplier to 6x and left everything on Auto, and changed FSB to 300. This gives me a 2.7 Ghz.
Should I just change the FSB to 400? Should I raise the CPU modifier to 9x again?
What should I do about the ram?
Thanks for any patient answer
Nice overclocks.
I found this thread through Google as I just build my new system yesterday.
I am a newbie overclocker so I wanted to ask some advice.
My system:
Intel Q6600
Gigabyte DS4 P35
Corsair 6400C4 CL4 memory (4x 1gig) (a real narrow fit because of the sidepanel on it)
Enermax 720 w PSU
Thermatake Mozart cabinett (5 fans so plenty of cooling)
Zalman 9500LED Aircooler
(Several harddrives and one dvd-burner)
Gainward 8600GTS (I am not really a gamer)
I know my way around the BIOS and computers but I havn't overclocked muchbefore (past ten years at least)
Since I am a real newbie I wanted to ask what kind of values I would have to change to reach 3.2 Ghz of a stable build and how I should overclock my memory.
ATm I have changed the CPU multiplier to 6x and left everything on Auto, and changed FSB to 300. This gives me a 2.7 Ghz.
Should I just change the FSB to 400? Should I raise the CPU modifier to 9x again?
What should I do about the ram?
Thanks for any patient answer
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
you're going to have major heat problems at 3.2 with that zalman. You should ditch that and get a high end air cooler. Tuniq tower and thermalright ultra 120 extreme are both excellent, tuniq can be had for $50 online, ultra 120 for closer to 80 since you have to buy the 120mm fan separately.
Ok, Tunique Tower it is.
Can I set FSB to 333 and multiplier to 9X and leave everything else on Auto?
Can I set FSB to 333 and multiplier to 9X and leave everything else on Auto?
hi Slackenerny,
thanks for your review. i'm new here and found it helpful yesterday. and quite intriguing -- i built very similar system two weeks ago, except memory brand (geil) and power supply (seasonic).
at this moment, i'm running e6750 @ 3.2Ghz (400x8) @ 1.30V (after vdroop. bios 1.3375v, vid 1.3125v), memory 800Mhz 4-4-4-12 @ 2.15v, F6 bios. my HS is thermalright ultra-120 with ultra quiet noctua fan, 800-1300 rpm.
i read carefully the excellent link on thermal specs you provided.. and here comes my question: my Tjunction is ~45'c (idle, ~25'c ambient temp), but Tcase is just 3'c to 7'c lower. interesting.. the delta should be 15 +- 3'c.
at load, Tjuntion is ~61'c and Tcase is ~57'c, so the delta remains basically the same (5 +- 2'c).
Tjunction is surely correct: core temp and everest show the same values and when i add 15 deg offset in speedfan, it's the same, too.
now Tcase: both speedfan and gigabyte's ugly EasyTune utility show the same value and i believe bios also shows the same.
so, i'm confused: the delta between Tcase and Tjunction is 1/4 to 1/2 of what it "should" be.
any explanation? i even reseated the heatsink today (with no problems -- i used coollaboratory liquid pro, maybe you read some bs about it). heatsink isn't lapped. i should do it when i have some spare time.
PS: my case is open as i'm waiting for antec p182 delivery. there are only 3 fans: noctua cpu fan, power supply fan and the sapphire x1950pro stock vga fan.
PS2: for those interested in OC.. i had it running @ 3.6Ghz (8x450), mem 900Mhz 4-4-4-12 @ 2.2v. Vcore just ~1.35v, maybe more, but less than 1.4v, can't remember now. with F5g bios. with turbo mem settings in bios, everest showed ~9000 MB/sec memory read and 54ns latency. 1:1 fsb/dram ratio. quite a boost from standard 7,3GB/s and 76ns. wasn't quite stable though. probably the memory was failing..
thanks for your review. i'm new here and found it helpful yesterday. and quite intriguing -- i built very similar system two weeks ago, except memory brand (geil) and power supply (seasonic).
at this moment, i'm running e6750 @ 3.2Ghz (400x8) @ 1.30V (after vdroop. bios 1.3375v, vid 1.3125v), memory 800Mhz 4-4-4-12 @ 2.15v, F6 bios. my HS is thermalright ultra-120 with ultra quiet noctua fan, 800-1300 rpm.
i read carefully the excellent link on thermal specs you provided.. and here comes my question: my Tjunction is ~45'c (idle, ~25'c ambient temp), but Tcase is just 3'c to 7'c lower. interesting.. the delta should be 15 +- 3'c.
at load, Tjuntion is ~61'c and Tcase is ~57'c, so the delta remains basically the same (5 +- 2'c).
Tjunction is surely correct: core temp and everest show the same values and when i add 15 deg offset in speedfan, it's the same, too.
now Tcase: both speedfan and gigabyte's ugly EasyTune utility show the same value and i believe bios also shows the same.
so, i'm confused: the delta between Tcase and Tjunction is 1/4 to 1/2 of what it "should" be.
any explanation? i even reseated the heatsink today (with no problems -- i used coollaboratory liquid pro, maybe you read some bs about it). heatsink isn't lapped. i should do it when i have some spare time.
PS: my case is open as i'm waiting for antec p182 delivery. there are only 3 fans: noctua cpu fan, power supply fan and the sapphire x1950pro stock vga fan.
PS2: for those interested in OC.. i had it running @ 3.6Ghz (8x450), mem 900Mhz 4-4-4-12 @ 2.2v. Vcore just ~1.35v, maybe more, but less than 1.4v, can't remember now. with F5g bios. with turbo mem settings in bios, everest showed ~9000 MB/sec memory read and 54ns latency. 1:1 fsb/dram ratio. quite a boost from standard 7,3GB/s and 76ns. wasn't quite stable though. probably the memory was failing..
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
don't bother upgrading your cooling if you're only going to run at 9x333. you can probably get that with all settings on auto.
I REALLY need to switch out my Zalman.
I am now at Q6600 @(9X333) 3.0ghz @1.275 V.
My idle temps are around 45 degrees C and my load temps are 69C which I feel is way to high.
This is in a very well ventilated case (5 120mm fans).
My memory is supposed to run at 2.1V, I run it at Normal(1.8V) now and it's fine and stable running Prime95. Should I up the voltage or will that only generate more heat and no additional performance?
I am now at Q6600 @(9X333) 3.0ghz @1.275 V.
My idle temps are around 45 degrees C and my load temps are 69C which I feel is way to high.
This is in a very well ventilated case (5 120mm fans).
My memory is supposed to run at 2.1V, I run it at Normal(1.8V) now and it's fine and stable running Prime95. Should I up the voltage or will that only generate more heat and no additional performance?
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
sorry, I missed that you are running a Q6600. definitely go for the tuniq. I got mine for 55 shipped from newegg, I heard recently of sombody getting one for 47 shipped from mwave. I don't know if the 47 was shipped or plus shipping. what are your full system specs (see my sig for example)?
If memory is not giving your problems then leave it at 1.8v. at what speed are you running your memory?
If memory is not giving your problems then leave it at 1.8v. at what speed are you running your memory?
I'm not sure about this one. Mine isn't exactly ~15 either. Have you tried increasing the fan speed on your CPU cooler. Maybe the heat isn't being drawn away fast enough? That's just a guess though. In terms of temp control, I'd work with in-core temps (use can use the CoreTemp 95.4 beta version now which has the correct offset).
My system:
Intel Q6600 @1.275V (333*9)
Gigabyte DS4 P35
Corsair 6400C4 CL4 memory (4x 1gig) (a real narrow fit because of the sidepanel on it)
Enermax 720 w PSU
Thermatake Mozart cabinett (5 fans so plenty of cooling)
Zalman 9500LED Aircooler
(Several harddrives and one dvd-burner)
Gainward 8600GTS (I am not really a gamer)
I am running the memory at 800. (333*2,4 if I remember correctly).
I am thinking of picking up the Thermalright 120 Extreme as that has gotten the best reviews by Anandtech.
There is certain mechanical issue with TR ultra 120 Extreme -- without some additional work, the bracket won't fix the HS firmly in place.
Follow this link for possible solution: http://www.exoid.com/?page_id=94. And from my own experience (I have Ultra 120, not extreme)
the heatsink surface is less than ideal.
Alternatively, consider Scythe Infinity or Tuniq Tower. Infinity is less expensive and comes with decent fan already.
Concerning the memory, 800Mhz data rate is best when running your FSB at 1600 (2x memory multiplier). It reduces the memory
latency significantly. In my own experience: from ~75ns to 58ns (with turbo setting in BIOS).
If you have low latency memory like 4-4-4-12, be sure to specify it in BIOS manually (press CTRL-F1 in BIOS to show hidden settings).
Though, you wil have to up the DDR2 voltage to something like ~2.1V (check your memory specs).
Follow this link for possible solution: http://www.exoid.com/?page_id=94. And from my own experience (I have Ultra 120, not extreme)
the heatsink surface is less than ideal.
Alternatively, consider Scythe Infinity or Tuniq Tower. Infinity is less expensive and comes with decent fan already.
Concerning the memory, 800Mhz data rate is best when running your FSB at 1600 (2x memory multiplier). It reduces the memory
latency significantly. In my own experience: from ~75ns to 58ns (with turbo setting in BIOS).
If you have low latency memory like 4-4-4-12, be sure to specify it in BIOS manually (press CTRL-F1 in BIOS to show hidden settings).
Though, you wil have to up the DDR2 voltage to something like ~2.1V (check your memory specs).
I'm not sure either. Maybe you're right. On the other hand, as the low delta seems to be constant, it could as well mean that the heat is being drawn very efficiently -- considering in-core temp is OK. And it is. Idling at 42'C, full load at 60'C (according to Core Temp). Ambient temp 24'C.
So I'll stick with in-core temps. What is the highest in-core temp you find acceptable?
I'm running the same freq and mult as you, 425Mhz x 8 @ 1.31V (BIOS), 850Mhz memory data rate @ 2.1V.
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
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