I ended up with batch # 3838B552 I haven't seen anything on it yet, and just got everything set up yesterday. Ram is running correctly at rated speeds, but dam I need to do my homework on all these new i7 bios settings.
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I ended up with batch # 3838B552 I haven't seen anything on it yet, and just got everything set up yesterday. Ram is running correctly at rated speeds, but dam I need to do my homework on all these new i7 bios settings.
I see people here with the QPI/VTT above 1.40 for speeds above 4.0ghz, is this 24/7. I wanted to know if 1.41v QPI/VTT & a Vcore of 1.40v is safe for 24/7 use for 4.2 ghz. Intel reccomends 1.35v for the QPI/VTT voltage.
My new 3841A554 is 20 run linkpack & 8 hrs prime64bit stable @4158 with a Vcore of 1.35v & QPI/VTT 1.335v but for 4.2 I need 1.41v QPI/VTT & Vcore of 1.40v load. temps are: prime 67c & linkpack 84c.
Should I go for it ?
hi there.Quote:
Originally Posted by hlonipha
I am using 1.29vtt for my 4.0 daily settings. Ive been stable at this setup for about a bit over a month already since I achieved it., been crunching for about a week like this, and real temp has been open for a few days as you see the time its been running.
http://img.techpowerup.org/090226/Capture084.jpg
So is there any way to tell what a likely batch from Newegg might be these days? Can't decide if I should roll the dice or track down a used chip.
My problem is not 4.0ghz. try to raise your bclk to 198-200 and run linkpack or prime. A hole different story.Quote:
Originally Posted by Chicken Patty
sorry I misread your post.Quote:
Originally Posted by hlonipha
above 4 GHz the most stable setup ive tried to achieve was 4.2 GHz @ 1.42v. VTT at 1.4v.
That is what I mean, thanksQuote:
Originally Posted by Chicken Patty
Is it ok to run that high of a qpi/vtt
well I know intel says to stay under 1.35v, but my chip ran like that for the first month, then I lowered to it to 4.0 because the extra voltage was not worth the extra 200 MHz. my CPU is still here in perfect conditions, no degration what so ever.Quote:
Originally Posted by hlonipha
Just got mine from newegg yesterday and it was a 3842A613.Quote:
Originally Posted by methimpikehoses
Looking forward to testing my 3844A361 the only thing I've found about that batch was very very good. The person got 8 hours prime 3.8Ghz at 1.125v.
Wow...you got the same batch I have as well! What mobo does 'that' person have?Quote:
Originally Posted by ewitte
3842A321 i7 920
So far so good at 4GHz 191x21 HT on.
Passes 5 LinX passes with 1.38v in E-LEET, set to 1.34 in bios (vdroop disabled in bios)
VTT 1.39
CPU PLL 1.85
QPI PLL 1.35
RAM 1.68 (1.65 bios)
I'm going to try for the lowest vcore possible at 4GHz. I tried to keep the same vcore and go up, but it seems not to like to go higher than 4GHz. I tried 195x21 and it bluescreened.
I'll post screenshots and temps once I get closer to the final 24/7 settings.
good going zlojack, keep us posted :up:
Go on zlojack. I also have 3842A. Since i would like to run either 20x200 or 21x200 to have DDR3 2000 plz check if its possible. Do you think 4.2Ghz is out of the question?
4.2 GHz is reachable with basically any i7. THe variation is in voltages, but as far as speed very few Ive seen that cannot go above 4.0 Ghz stable.Quote:
Originally Posted by ChaosAD
Chicken what i mean is if he can attain 4.2 stable at a reasonable vcore. If i am going to need 1.55v for 4.2 i think its out of the question even if i watercool it.Quote:
Originally Posted by Chicken Patty
Gotcha.Quote:
Originally Posted by ChaosAD
Well most of them do achieve it at a reasonable vcore. I need 1.42v. That is ok for 24/7 use.
DDR3 2000 on this chip will be very difficult, I think. That's 4000 uncore! 4400 QPI!Quote:
Originally Posted by ChaosAD
Maybe for benchmarks on a different divider, but I don't think on 200 bclk.
I can get up to about 1800 (180 bclk) to boot on the 2:10 divider, but not any higher than that.
My problem right now are my temps...I think I need to reseat my waterblock, but this chip seems to be much hotter than my 3837A chip with the same volts. We're talking about 10C difference when crunching at the same volts!
So as much as I'd like to take this one up to 1.5v or something, it's not possible right now given my temps.
I know DDR3 2000 is difficult to achieve for 24/7. It mainly depends on the cpu chip. How good or bad it is.
Why did you change your 3837A in the first place then? Since you have 4GHz @ 1.38 i think you are ok. I wish i can achieve this. Now 4.2Ghz will be even better ofc :)
right now man I am still in testing I have the same batch as you... I picked mine up at comp usa, was the only decent batch they had. So far I am at 3.77ghz HT, and Turbo enabled with a lapped thermaltake 120 True Black 1.289v tested for 24hrs on prime95 all 8 threads in blend. I will have to post all my specs for you but my systemQuote:
Originally Posted by hlonipha
Case: Cooler Master Stacker 830 EVO
CPU: Core i7 920@3.77ghz HT/Turbo On, Vcore 1.289v
Mobo: EVGA X58 Vreg temp yet to exeed 57c
Video Cards:3x EVGA 280 GTX FTW's
Ram: 12gigs Corsair Dominator Tri-chn 1600 Ram at stock timings with a 2:8 mem Freq
Hard Drive:10x 1TB Segate Hard Drives
PSU: Thermaltake ThoughPower 1000w, and a 450 Supplimental
But I was able to get up to 3.6ghz with ht/turbo enabled with my Vcore 2 notches down from above... temps where aobut 2-6c cooler per core, and about 3-4c cooler on the vreg I think once I start pushing past 3.7ghz it will be the slow turtle attack on overclocking playing with my Vcore, QPI and cpu VTT atm my cpu VTT is at +125mv
I started overclocking with this... mind you its for an EVGA X58 board... There is a guy on the EVGA forums that is pretty good at giving you a starting point I had to tweak a few settings on what he originally gave me and have been slowly doing the turtle ninja attack on my oc since I got it stable at 3.4ghz
CPU Clock Ratio ( 20)
CPU Host Frequency (Mhz) ( 164 )
CPU Uncore Frequency (Mhz) ( 20x )
MCH Mhz (1600) <-- only if on the SZ1N BIOS
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
Memory Feature
Memory Control Setting ( Enabled )
Memory Frequency ( 2:8 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Parameters
tCL Setting ( 8)
tRCD Setting ( 8 )
tRP Setting ( 8 )
tRAS Setting ( 24 )
tRFC Setting ( 74 )
Command Rate ( 2T ) "since I have12gigs of ram"
Voltage Control
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.28125 )
CPU VTT Voltage ( +125 )
CPU PLL VCore ( 1.8 )
DIMM Voltage ( 1.6 ) "put it to this to stay below intels 1.65v while oced"
DIMM DQ Vref ( +0 )
QPI PLL VCore ( 1.15 )
IOH VCore ( 1.225 ) <<--- good if you have triSLI 260 cards otherwise AUTO
IOH/ICH I/O Voltage ( 1.6 ) <<--- good if you have triSLI 260 cards otherwise AUTO
ICH VCore ( 1.15 ) <<--- good if you have triSLI 260 cards otherwise AUTO
PWM Frequency ( 800 )
CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled)
Virtualization Technology ( Disable)
Logical Processor Setting
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Settings
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.8GT/s )
Just wondering why on earth you have ht disabled that is what makes an i7 an i7 and sperates it from a q9xxx, Plus to have the full potential of the 200 series you need to have it enabled.... esp on a duel gpu card, it helps big time in sli,tri sli and quad sli over prev gen cpus.
Why did I change it?Quote:
Originally Posted by ChaosAD
I saw a new batch number while I was at the store looking at something else. :p:
I did a quick Google and found some interesting results on a Korean site, so I thought I'd give it a go.
Okay, here is a short report on my brother's CPU, batch #842A594. Saturday night I finally had a chance to try to put his rig together, but after waiting for two weeks, we found out that the case was a returned one, therefore missing all the screws and stand-offs necessary to mount the board in the case. What's more, on the mobo, Micro Center's "POST IT" service screwed up one of clips that holds the NB/SB Heatsink (broken and loose in the mobo bag), so we had to bring it back and they had to take one out from a different board to use on our board. To make the story short, this batch should OC good if you have DDR3-12800 (or better) memory. Since we only have DDR3-10600 memory, we weren't able to get it past 20x167 (or 21x167 Turbo). It OCs similar to my batch (844A361) but requires .100V more vcore. It was stable with 1 Hour OCCT Test. Lacking proper memory (and I don't want to kill his CPU with high vcore), I won't force it to go any higher than that. Perhaps when he buys better memory (I doubt it as he is just a casual PC user so no OCing) we'll try it some more. I, on the other hand, will try to acquire speedier memory to use and see how far mine can go. Sorry to disappoint you guys...
Hello ppl, my first post.
Since a couple of days i own a i& 920 system.
Oc'ing this system doesnt go without any problem
Setup:
920 batch 3837B387
msi x58 pro
ocz 3x1gb 12800 7-7-7-1t
Stress temps are 60-65 degrees with Scythe Mugen 2
The following settings are prime stable.
BLCK = 185 (3700Mhz)
HT= off
C1E = off
EIST = off
TB= off
Multi = 20x
memoru = auto (1110 mhz cpuz)
6-6-6-1t (cause of the low mem mhz)
uncore = auto (2970mhz cpuz)
CPU v = 1.376 (bios)
CPU PLL v = auto
QPI v = +0.1 = 1.045+0.1 = 1.145v
DRAM v = 1.59 (diffirence within 0.5v to QPI v)
NB v = auto
ICH v = auto
The following changes do not improve stability
- lock dram ratio on 4 and uncore on 8 system not stable. also when i put 1.65v on dram.
- BLCK 190 system not stable.
- HT on
I dont want go higher than 1.376 with cpu voltage. But i see many ppl that hit 3800 with 1.25-1.3v
I know that not everyone cpu is the same. But i guess understand my stress with B batch cpu.
Any tips are welcom you need more info about setup just let me know.
Not posting complete specs until I can get a Prime screenshot (can't leave running that long on the stock cooler). 3844a361 booted and ran spi 19x211 1.2v but prime failed. Seems fine on 1.225v though ;) Not bad for air even if I had to go to 1.25!
what do letters and digits in batch stand for?
and what the relevance between batch and born date? for ex, mine 3841A579 has pack date 01/26/09
What mobo are you using? Does your CPU defaults to 1.08V Vcore as well when you leave everything at stock? Mine does...but my brother's defaults to 1.16V Vcore when everything is left at Auto (stock) and his is 3842A594 (vs. mine is the same as yours). I think the latest batch defaults to a lower Vcore when everything is set to Auto. It would be interesting to know IF the latest batch really defaults to a lower Vcore or if mine is the only one.Quote:
Originally Posted by ewitte
p6t deluxe. Yes it says 1.08v in BIOS on auto. Right now until I get better cooling its actually looking stable 2.67Ghz .95v BIOS (.944v shows CPU-z with 8 cores going in prime).Quote:
Originally Posted by jcniest5
http://s150233688.onlinehome.us/primeLowVolts.jpg
Not sure if it makes any difference if I use a different mobo than yours (Asus P6T Deluxe vs. MSI X58 Platinum SLI) but I might try the .950V VCore as well to see if it's stable. It would be cool IF I can get it to run with that low VCore. It would stay pretty cool. What kind of temp do you get with that low VCore?Quote:
Originally Posted by ewitte
Its still getting in the 70's under prime. This intel HSF is sucking. Those push pins are not holding it very good against the heat spreader. Its barely touching and I had to apply thermal compound to both sides just for that or the gap is too much. Its definately getting better cooling ASAP.Quote:
Originally Posted by jcniest5
Yeah, the stock cooler sucks. I have an Ultra 120 Extreme and even that still doesn't quite cool it properly.Quote:
Originally Posted by ewitte
Shouldn't be too hard to find something to handle 4Ghz @ 1.225 which looks like what my 24/7 will be :up:Quote:
Originally Posted by jcniest5
What memory do you have anyway? My memory sucks...I should get 1600Mhz memory but the price just went up about $40 within the last few days. Is there something going on with memory chip makers?
6GB OCZ 1333 7-7-7-20. BTW I just got a Hyper N520 for the CPU. Needed something to fit in my Cosmos S with the fan on and I'm not going crazy on the volts anyway.
My mild OC low volts results. Still hot but much better than the stock HSF.
http://s150233688.onlinehome.us/prime36lv.jpg
3844a361
i920 Asus p6t deluxe
cpu in BIOS - 1.085v
qpi 1.35v
mem 1.66v
HT on
C1E on (to keep idle temps low)
CState on (to keep idle temps low)
Memory OCZ 1333 7-7-7-20 running same timings at 1524.
Coolermaster Hyper N520
Seems with the temps under control this chip will do
2.67Ghz - 0.95v
3.6Ghz - 1.085v
3.8Ghz - 1.135v
4.0Ghz - 1.225v
Quote:
Originally Posted by ewitte
Ummmm, might want to leave p95 run a little bit longer than 15 mins to even think temps are under control. 8K does not load the cores at all.
Didn't have much time and have kinda been taking it a little easy as you see they are still in the 80's. Hoping the TIM settles and gives me slightly lower temps as well. Trying to decide if I want to go ahead and upgrade the HSF again or start the design phase for watercooling.Quote:
Originally Posted by hlonipha
EDIT: I'm going to play around with the fans from a few diagrams I saw on the watercooling forum. One suggestion there may help a lot because when I had the q9550 the temps DID go up like 10C when I installed the GTX 295. If I can get fresh air out from the top the situation may be a lot better.
Batch: 3837B290
http://img145.imageshack.us/img145/3959/402ghzoc.png
http://img145.imageshack.us/img145/4...ng/1/w1680.png
I have no real need for Hyperthreading, so I turned it off.
Full specs:
Processor: Core i7 920
Motherboard: ASUS P6T WS Professional
Memory: OCZ 1600MHz 7-7-7-20-1T 6GB DDR3
Graphics Card: ASUS EN8800GT
PSU: OCZ GameXStream 700W
Cooling: Zalman Reserator 1 Plus (Koolance CPU 350 Waterblock, Zalman GPU and GPU-RAM water blocks in the same loop) With a pump mod (D-Tek DB-1 Pump).
I haven't tried for a higher overclock than this, because the Reserator compounds the heat, which makes it get worse as time goes on.
The Batch Number's above the picture.
EDIT: I know I didn't leave Prime 95 running for long in that picture, but I had it running for at least a few hours when I first started overclocking it. I don't often run my i7 at that OC because of the heat compounding issue with the Reserator. I let it run as long as I felt safe to let it run at the temps it was getting to (the first time I ran Prime95 for a few hours).
Handle it good at those settings? Kinda looking at the reserator XT. Though I only have to deal with 1.225v for 4Ghz. Or just spending the next 2 months trying to pick out parts. Thing is I prefer it to look more professional.Quote:
Originally Posted by Nemaster203
Welcome to XS Nemaster203. Seems like you found yourself a nice chip. Im rather sure it wil do 4ghz with HTT disabled at lower vcore :up:
Oh sweet until I get better cooling (or fix what I have) it looks like 4Ghz doesn't totally thermally crap out with HT off. With C1E and CState on it drops into the 40's when idle as well.
Well i have been doing some Prime95 and LinX testing of my running setup..
Found a nice place of stability after about 50 passes of Linx and a couple of hours of Prime95...i would say it's considerably stable
Specs
i7 920 @ 4.0Ghz 1.3625V Bios (1.399V Load Windows) 191x21 w/ HT on. #Batch 3839A613
3 x 1GB 1600Mhz G.Skill @ 1.6V
EVGA X58 w/ SZ21 Bios
W/C loop made up of the Swiftech Apex ultima Kit.
Bios Template
i7-920@4.0GHz
Mother Board ( EVGA X58 X3 SLI )
Drivers ( 9.1.0.1013 )
Bios ( SZ21 )
CPU ( 920 )
CPU Cooler ( Swiftech Apex Ultima )
Memory ( G.Skill 1600Mhz 9-9-9-24 NQ )
PSU ( Antec TPQ 1000W )
GPU ( Powercolor HD4870X2 )
Drivers ( 182.08 )
Operating System ( XP Pro )
Frequency Control
CPU Clock Ratio ( 19X ) ( x21 With Turbo Enabled)
CPU Host Frequency (Mhz) ( 191 )
MCH Strap ( 1333Mhz )
CPU Uncore Frequency (Mhz) ( 16X )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
Memory Feature
Memory SPD ( XMP )
Memory Control Setting ( Enabled )
Memory Frequency ( 2:8 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( Auto )
tCL Setting ( 9 )
tRCD Setting ( 9 )
tRP Setting ( 9 )
tRAS Setting ( 21 )
tRFC Setting ( 70 )
Command Rate ( 1T )
Voltage Control
EVGA VDroop Control ( With VDroop )
CPU VCore ( 1.3625 ) 1.376V On idle, 1.399V Load
CPU VTT Voltage ( +225 )
CPU PLL VCore (Auto )
DIMM Voltage ( 1.600 )
DIMM DQ Vref ( +0 )
QPI PLL VCore ( 1.325 )
IOH VCore ( 1.2 )
IOH/ICH I/O Voltage ( 1.55 )
ICH VCore ( 1.10 )
PWM Frequency ( 933 )
CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.800 )
Temps
Well considering it's summer in Aus. Temps are quite brilliant
Note: Rad has 2 x 2000rpm Scythe Ultra Kazes (Pull) + 2 CM 90CFM Fans (Push) (All on medium speed via Fan controller) + OCZ Freezer Xtreme TIM.
Idle: Core 1 - 39 , Core 2 - 35 , Core 3 - 38, Core 4 - 35
Load: Core 1 - 66-68 , Core 2 - 63 , Core 3 - 65, Core 4 - 66
Vreg Temps at full load are 63 (w/ 60mm fan on Vreg)
System Temps at full load are 33
I think i have found my new 24-7 Clock :)
What do you guys think?
Look decent enough?
Ill get back with results later, just got my first i7 parts today, batch is 3841A522. I cant find anything apart from something Spanish about this batch:confused:
Here is how 3841A579 breaks down...Quote:
Originally Posted by rioja
3 - factory
8 - year (2008)
41 - week in year (week 41 in year 2008)
A579 - lot number
All the Reserators except the Reserator XT are passive cooled; basically just a giant reservoir with fins on it. The Reserator XT is a hybrid of the passive Reserator design, and more traditional Active Radiator cooling. I believe the Reserator XT actually has 2 radiators built-in to it, with a small reservoir in one end. As I've said, the passive Reserators compound heat, unless you place them in a cold area or an air-conditioning duct. I have the fankit for my Reserator, but it still compounds heat. The XT will probably work nice though, since it's made for both passive and active cooling.Quote:
Originally Posted by ewitte
For those that don't know what a Reserator is, it's a Reservoir, a Radiator, and a Pump combined into one unit, which makes it a Reserator.
Thanks. I can't get my Core i7 to run stable at lower voltages than this, but I'm still fairly new to overclocking. I'm only changing the memory ratio, bclk, and the Vcore, so there's probably something else I could do that I don't know about to get it higher, everything else is on auto.Quote:
Originally Posted by loc.o
P.S.- My motherboard won't let me change any multipliers/ratios except the CPU Multiplier and the Memory Multiplier (no Uncore or QPI ratios or multipliers). I only get 3 options at what I want the QPI to run at, in MT/s. The Uncore automatically changes depending on my Memory Multiplier.
i920 3838A505 HT on TURBO off
Processor: Core i7 920
THERMALRIGHT COOPER 120XTREME + FAN ULTRA KAZE
Motherboard: ASUS RAMAPGE II XTREME
Memory: GSKILL 6G KIT GBHK 8-8-8-18 1T 1.6 VOLT
Graphics Card: ASUS ENTGX 295
PSU: ANTEC SIGNATURE 850 WATT
http://img27.imageshack.us/img27/209...1425votwo8.jpg
3842a951
someone know somethink about this batch?
thanks
I have ab 3842A atm I just found that i can trade it with an 3836B124. Do u think i should go for it?
but How is your actually 3842A?Quote:
Originally Posted by ChaosAD
I wish i knew. I havent opened it yet. If i open it i cant make the trade at the shop :mad:Quote:
Originally Posted by diablos
Ok, i decided to stay with the 3842A. And just bought a shinny new DFI T3eH8. Currently running all stock volt at 21x150. I check the max stable with stock volt 1st cause i run at intel air cooling. Lets see.
Some results for my i7 920. In my eyes (anyone may think different) an overclock is only an overclock when it's at least 8 hours prime stable (on all cores).
Results so far:
4GHz boot(official CPUz)
Overclock: 3570MHz (21x170) - Primed
Bus speed test: 210MHz
Results sheet
Hardware used:
Processor: Intel Core i7 920
Batch: Batch: 3841 A628
Cooling: Swiftech Apogee GTX, BIX, SW MCP600, 6L water reservoir (old pic)
Mainboard: Gigabyte GA-X58 UD5
Memory: 6 GB (2 x 3) MUSHKIN PC12800 (1600 MHz cas 9, 1.5-1.6v)
Graphics Card: ATI Readon HD4870
Case: Antec Twelve Hundred
PSU: Corsair TX-750W
Taking it easy in prime until I upgrade the cooling but here are some longer run low vcore sessions.
http://s150233688.onlinehome.us/prime36lv.jpg - Almost 24 hours hit 82C max with HT off at one point dropped back to whats in the screen shot when I turned the AC on 76F - 1.085v in BIOS
With a small change in case fan configuration and tiny drop in vcore
http://s150233688.onlinehome.us/prime36lv2.jpg - 1.075v BIOS - 8 hours - stopped at the hottest part of the day about 10C less than before
http://s150233688.onlinehome.us/prime38.jpg - 1.145v - 10 hours - temps 80/77/88/73
Results posting for the 3.8Ghz run
3844a361
i920 Asus p6t deluxe
cpu in BIOS - 1.145v
qpi 1.35v
mem 1.6v
HT off
C1E on (to keep idle temps low)
CState on (to keep idle temps low)
Memory OCZ 1333 7-7-7-20 running same timings at ~ 1200
Coolermaster Hyper N520
Why is it hardly anyone is running above 4Ghz anyway? Although I notice you need quite a bit more Volts at some point for every step you take, Im right now testing 4.3Ghz with 1.408V and my cores are between 50C and 57C:cool:
I understand that not every board or CPU can do what others do, but I guess there should be more people getting those results. Since this is well in Intel's spec'd values Im slightly confused why no one is seriously going above 4Ghz according to the spreadsheet:confused:
Either you have much better cooling, room temps, etc or less amps leakage. Pay attention to the peoples temps that are running below 4Ghz ;) If I run prime it will hit 100C and throttle right away even though I'm only at 1.225v for 4Ghz. Single threaded I can run benchies all day long (look at CPU-z because Cstate already dropped on coretemp). Believe me I will eventually switch to water cooling again and not have a problem with 4.2-4.4 24/7.Quote:
Originally Posted by Rammsteiner
http://s150233688.onlinehome.us/spi43.jpg
http://s150233688.onlinehome.us/spi4275-32mb.jpg - yes thats 32M pi at 4275Mhz and only 1.3v ;)
Cooling is in sig. Although quite a few people with WC use a Thermochill PA3.120, I guess the difference wouldnt be that shocking compared to my TFC X-Changer 480. Then again some people put other stuff in their loop too, but would that like justify a 20~30C rise of the temps:confused:Quote:
Originally Posted by ewitte
Being on water is the reason you don't have temperature problems ;)Quote:
Originally Posted by Rammsteiner
I'm on water, and I have temp problems with my Core i7 when overclocking, although I don't have a huge radiator like you do.
I have the same one. I'm going to give it a try.Quote:
Originally Posted by Renegade5399
Good to know it's a good one...
Anyone know if this comes from a good batch by any chance
3841A395
Guyz do u use Prime small FFts to check the vcore?
Batch # 3839A529 (Can't find this batch mentioned anywhere).
Running comfortably at 3.8 (19x200). Prime95 for 11 hours... Can't seem to get IntelBurnTest to run (fails instantly). Linx however runs for as long as I want it to.
Edit: Forgot to mention vcore=1.264v (CPU-Z)
i7-920 - ASUS RampageII Extreme - CM V8
Corsair XMS3 1600MHz 6Gb
XFX 9800GT 512Mb
WD BLack Caviar 1TB
LG 22x DVD Writer w/-Lightscribe
Corsair HX1000 PSU
CoolerMaster HAF932
Maybe when the new DOs come out we will see more above 4GHz.Quote:
Originally Posted by Rammsteiner
So when is VTT Voltage needed the most? AFAIK when you run high RAM speed you'll need it, I guess this has partly to do because of Uncore=2xhigh RAM speed. Blck? Big or small increases in VTT needed? General CPU OC'ing, needed at all?
Is the Heat!! The majority have conventional air cooling and 3.8 is what we are limited in terms of temp wise.Quote:
Originally Posted by Rammsteiner
Ok this was it. Call my processor dead. Died while swapping my cooling paste. I did not do anything special but clearly it was still enough.
Hey guys can I ask you how i can find the lowest possible QPI/DRAM Voltage? 1.35V is the max but with what kinda programs, tests I can test specific for the QPI stuff???
NEVER back off to where its more than .5v lower than your DRAM voltage.Quote:
Originally Posted by Astratuner
i7 920 Batch #3841A586 -- seems pretty good.
http://i156.photobucket.com/albums/t...g?t=1236581590
(obviously those temps are not at load)
^^^
Is that prime stable?
If there's one thing I learned with i7, a little hour OCCT or Prime doesnt say anything at all.
Run Intelburn Test and Prime95 Small FFT's together, let that run for a few hours, then you can be pretty sure it's stable;)
I got 4.3Ghz stable, but the extra Volts required over 4.2Ghz is insane. Ill just go with 4.2Ghz, testing minimal Volts now:cool:
I have a choice to select from these i7 920 batches:
3841A709
3841A712
3836B177
Which one should I go for if I want to go over 4GHz?
A little update from my i7 920
http://img.photobucket.com/albums/v4...5hrs_prime.jpg
Haven't tried yet.Quote:
Originally Posted by Fafeifa
Quote:
Originally Posted by sparks.oc
hey i have the exact same batch as you.
gtz cpu block and a feser 360rad. But now i'm busy trying lowering my Vcore on my 4.02Mhz overclock with HT on.
what kinda Vcore you need for an oc?
Im on air cooling and my temps stay below 70C while stress testing.Quote:
Originally Posted by Rammsteiner
I am only at 3.9ghz @ 1.232v load
I have tried going higher, but to pretty much get anything higher I noticed I was having to put the voltage up significantly more. So, I figure its not worth the extra heat and voltage especially...considering the small amount of gains I would get from here on out(even if it was like 200mhz extra). Its simply not worth the additional stress.
going from 2.66ghz to 3.9ghz with hardly a voltage increase is more than enough for me!! =) These things are insanely fast lol
Yeah, starting to notice the same thing. Only one core barely hits 60C with 4.2Ghz @ 1.36Vcore under load (CPU-Z). I feel like there's more but if I need a special nuclear power plant for another 100~200Mhz and/or my CPU/motherboard doesnt want to run at a higher Blck, there's not much left for me:p:Quote:
Originally Posted by GenTarkin
I had an 3841 A628 and 4GHz was hard to get prime stable (not succeeded yet). I won't now anymore this the processor is dead (no cause known, I didn't do anything extreme at that moment).Quote:
Originally Posted by Allsop
Quote:
Originally Posted by Astratuner
Look here
I am not happy to say I just had to RMA my processor. I sent my mobo also just in case.
Switched out N520 for a Coolermaster V8 and now get lower temps WITH HT on. About 75C max and most things besides prime don't go over the 60's. I can be happy with 3.8 and HT on until the water cooling gets installed. At 4Ghz prime brings it into the mid 80's and it gets less stable around 85C at that point unless the vcore is bumped up even more and adds even more heat.Quote:
Originally Posted by ewitte
Eric
If your ever lookin for a nice cooler really inexpensive compared to all the other 1366 high end ones and performs as well or better...Quote:
Originally Posted by ewitte
Scythe Mugen 2 I have it and its amazing, can be had for around 45$ shipped.
Done with air ;) Specs so far what I'm looking atQuote:
Originally Posted by GenTarkin
EK-Supreme LT
Black Ice GTX360 or Xtreme360
Haven't figured out what else I want yet. Last time I did water ended up not insulating good enough and killed my board with condensation. I had the water running at -25C :D Don't plan on dropping the temps this time.
If that's your loop, should be allright. Although bigger rads are even better, a single 360mm for CPU should be doing its job just fine;)Quote:
Originally Posted by ewitte
Well, you know, subzero WC is a whole different level of cooling than WC, I wouldnt be doubting to get WC just because you failed at insulation jobs for sub zero cooling:p:Quote:
Originally Posted by ewitte
Although, just sod it and do it good this time:rolleyes: If I ever have too much money left Ill certainly get another TJ07, some board+CPU, 3 rads and TEC:cool:
Keeping the 295GTX on air.Quote:
Originally Posted by Rammsteiner
Good good, same as me:p: Well... the idea, not the GPU:rofl:Quote:
Originally Posted by ewitte
Seriously, a big ass rad for only the CPU is awesome:shocked:
3844a361
MSI X58
Vcore, BIOS setting +0.17, idle 1.27, prime 1.25
Bclock=200Mhz, multiplier 20
http://i41.tinypic.com/9unp1f.jpg
raptord - While that looks nice, you need to run LinX with the All button pressed. i7's will pass Linx when not all the RAM is being used.
+1 for what Renegade said. But while i run Linx 3.8Ghz@1.2v and it fails almost instantly (stock cooler atm), i can run and game on this setup for 48 hours continously without a problem. Strange.
Raptor, what memory do you use? And what exactly is your MSI X58 mobo (they have a few X58 boards, you know)?
How exactly did you manage to kill your CPU with changing cooling paste? Did you apply too much or too little paste? Or did you not tighten it properly or overly too tight? What CPU cooler do you have? I would understand if you are using the stock cooler as sometimes it's hard to have the four prongs seated proper. Still, the CPU's thermal protection sensor should kick in if it ever gets way too hot.Quote:
Originally Posted by sparks.oc
jcniest5 is correct. Most likely the pins in the socket either get damaged or the CPU shifts ever so slightly off center and some pins don't make a good connection. Try re-seating the CPU before starting an RMA.
it's a X58 Plat and super talent ddr3 1333 6gb.Quote:
Originally Posted by jcniest5
I am using water cooling (Swiftech Apogee GTZ, 6 litre water reservoir etc...). I did not do anything special, everything went ok when changing the thermal paste. It just won't boot anymore. It's a big riddle to me. Nothing like this happened before in my 25 years of pc experience.Quote:
Originally Posted by jcniest5
then you haven't experienced enough TIM changes in those 25 years ;)Quote:
Originally Posted by sparks.oc
If you haven't already, pull it, clean everything with 99% iso and inspect your board for bent pins.
How Much do i gain with HT , I beleive that HT on is overall better for the system.. What do you people thing? its mor a "thing" to get it stable with that on, its not getting things worse, some thing might run as usual but a good deal of stuff runs pretty better with it ON... someone with good experience with this?
regards.
Encoding, folding, etc will be MUCH better with HT on. Gaming would do better with higher clocks.Quote:
Originally Posted by Infa
Not careful are we ;) Holding my fingers but haven't killed anything with TIM changes out of probably 50 times.Quote:
Originally Posted by ReverendMaynard
lol I'm very careful, but I've also changed maybe 10,000 cpus in my day.:up:Quote:
Originally Posted by ewitte
Is it the regular Platinum or is it the SLI version? The reason for asking is because I have the same batch and the SLI version of the Platinum. So far I haven't been able to OC that high yet. I have Corsair DDR3-1333 6GB memory.Quote:
Originally Posted by raptord
Here's some comparisons.Quote:
Originally Posted by Infa
http://ixbtlabs.com/articles3/cpu/ci7-turbo-ht-p1.html