Good luck.
ya give it a try.
Gentle Typhoon 1850rpm.![]()
Good luck.
ya give it a try.
Gentle Typhoon 1850rpm.![]()
Advanced CPU Features:
CPU Clock Ratio ................................ 20x
Intel(R) Turbo Boost Tech .................. Enabled
CPU Cores Enabled ............................ All
CPU Multi Threading .......................... Enabled
CPU Enhanced Halt (C1E) ................... Disabled
C3/C6/C7 State Support .................... Disabled
CPU Thermal Monitor ......................... Disabled
CPU EIST Function ............................ Disabled
Virtualization Technology ................... Enabled
Bi-Directional PROCHOT ..................... Enabled
Uncore & QPI Features:
QPI Link Speed .............................. 36x
Uncore Frequency .......................... 16x
Isonchronous Frequency ................. Enabled
Standard Clock Control:
Base Clock (BCLK) Control
BCLK Frequency (MHz) 200
PCI Express Frequency (MHz) 102
C.I.A.2 [Disabled]
Advanced Clock Control:
CPU Clock Drive 900mV
PCI Express Clock Drive 800mV
CPU Clock Skew 0ps (I think this is what it says for default?)
IOH Clock Skew 0ps (same as above)
Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [AUTO] 8x
DRAM Timing Selectable (SPD) .......... [Manual]
Channel A + B + C
Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time 8
tRCD 8
tRP 8
tRAS 24
##Channel A Advanced Timing Control##
tRC 41
tRRD 6
tWTR 6
tWR 12
tWTP 24
tWL 8
tRFC 88
tRTP 6
tFAW 30
Command Rate (CMD) 2T
##Channel A Misc Timing Control##
Round Trip Latency ................... Auto
Advanced Voltage Control:
CPU
Load Line Calibration Enabled
CPU Vcore I am just about to test with 1.2875v it passed LinX with it set to 1.3500v in the screen above.
QPI/VTT Voltage 1.255v
CPU PLL 1.300v (I read that lowering this can help gain stability, I have tested it with 1.800 and 1.860v and it doesn't make any difference to my o/c)
MCH/ICH Auto
PCIE Auto
QPI PLL 1.100v (tested this using every increment from 1.100v to 1.240v made no difference)
IOH Core 1.140v (again played with this right up to 1.240v)
ICH I/O Auto
ICH Core Auto
DRAM
DRAM Voltage 1.66v
DRAM Termination Auto
Ch-A Data VRef. Auto
Ch-B Data VRef. Auto
Ch-C Data VRef. Auto
Ch-A Address VRef. Auto
Ch-B Address VRef. Auto
Ch-C Address VRef. Auto
__________________________________________________ _______________
I should think I could get 4.2GHz Prime stable, I don't understand why my chip will be rock solid @ 200x20 with only 1.248v Vcore under load, yet I struggle to find stable settings for 4.2GHz and need to crank Vcore in order for it to pass LinX???
Like I said, I am about to test again with Vcore at 1.2875v instead of 1.3500v..
If you guys have any suggestions I would be happy to try them out!
::edit::
I've got some Arctic Cooling fans 12025PWM fans coming on Thursday hopefully, these will be getting used on my triple rad once I setup my WC loop, but I will try them out on my TRUE until I get my HK 3, I imagine they will be better than these Xigmatek fans I have atm, as they have got high static pressure, which should make a difference I've been told..
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
No problem Patty, I will try out your suggestions to see how I get on.. I have never tried using anything more than 1.66v on the RAM because of the Intel warning thing, but I see lots of others pushing more VDimm than 1.65v, so I guess I should try going for more..
I will let you know how I get on though, but I am going to bed now, as it is midnight here, and I am shattered!!!
Take it easy guys.
Every chip hits a point where the next increment of performance takes a large amount of voltage to accomplish. That is a good sign that you are approaching the overclock limit for that chip.
It will be interesting to see your result. It is a big drop down from 1.35 to 1.2875. I will be surprised if it works unless you were significantly over volted at 1.35.
My DO chip requires 1.36 vCore at 4200 and 1.44 to get to 4400 and that is with HT off (on for 4200). Every chip is different.
i7 920 DO 3850A849 @4410 under custom water.
Asus P6T deluxe V2
3X2gb Mushkin DDR3 1600 998691
Sapphire 4870 1g
Corsair Hx 850 psu
2 G.Skill titan 128gb SSDs in RAID0 Data
Intel X25-M OS drive
Windows 7 Home Premium 64
goodnight dude, keep us posted. and as far as Dram, it won't hurt.
This is very true, my C0 did 3.8 Ghz @ 1.292v, then for 4ghz it need 1.36v. 4.2 ghz needed 1.45v. at this point, its better to look for a balance of performance / voltages.
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
quick test on 4.2GHz 21x200 prime95 5 minutes only
![]()
Intel Core i7 920 D0 @ 4.2GHz 1.248v | EVGA X58 SLI Classified 760 | G.SKILL Perfect Storm F3-16000CL9T-6GBPS @ 2000 C8| 2x EVGA GeForce GTX 480 SLI | LG 37" FullHD 1080p LCDTV 37LH50YR TruMotion 200Hz | X-Fi Titanium Fatal1ty Pro | Logitech Z-5500D THX | Intel SSD X25-M G2 160GB + 8x WD Green 2TB | Pioneer DVR-S18LBK DVD-RW 22X SATA | Thermalright Venomous-X + Scythe S-Flex S-FDB 1600 | SilverStone TJ09 | Enermax Revolution 85+ 1250W | Microsoft Windows 7 Ultimate x64
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
Intel Core i7 920 D0 @ 4.2GHz 1.248v | EVGA X58 SLI Classified 760 | G.SKILL Perfect Storm F3-16000CL9T-6GBPS @ 2000 C8| 2x EVGA GeForce GTX 480 SLI | LG 37" FullHD 1080p LCDTV 37LH50YR TruMotion 200Hz | X-Fi Titanium Fatal1ty Pro | Logitech Z-5500D THX | Intel SSD X25-M G2 160GB + 8x WD Green 2TB | Pioneer DVR-S18LBK DVD-RW 22X SATA | Thermalright Venomous-X + Scythe S-Flex S-FDB 1600 | SilverStone TJ09 | Enermax Revolution 85+ 1250W | Microsoft Windows 7 Ultimate x64
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
Well, I finally got 4.2GHz Prime95 Blend Test stable!!
I have to set Vcore to 1.34v in the BIOS, but QPI is only 1.335v, CPU PLL is 1.300v, IOH Core 1.160v, QPI PLL 1.160v, VDimm on 1.66v and all other voltages are on auto.
Been running Prime95 for just over 6 hours now, and it is still going, so I would say it is stable, however, I am going to leave it running overnight just to be sure.
Temps are a little high for my liking, but I'm putting my chip under water in the next couple of weeks, I have got my 120.3 rad, fittings and fans being delivered tomorrow, so the only thing I need to get after that is my Heatkiller 3 copper, and I will be all set to start planning my loop layout, I don't know whether I should use both my 120.2 and 120.3 rad in the loop or not, I will need to have a think about it, and see where everything is going to go, as it might be tricky for me to fit both rads inside my current case, however, I will be getting the Silverstone TJ07 in November to replace my TJ10, so I know that I will have plenty of room in the TJ07 for both rads, and I won't need to hack it up in order to make things fit..
Nice Blunt, good results, you have LLC disabled?
Anyone have experience with this batches?
3912B351
3913B192
congratulations on getting it stable bro, temps are ok for now, they don't get that high with nothing else. For now you'll be fine with the 120.3. When you get the TJ07 just add the other rad, and maybe at the time you might want to add your motherboards NB to the loop or something, with both rads that wouldn't be a problem.
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
Thanks guys, I just stopped it to double check the BIOS settings were what I posted in that last comment, and everything was right, apart from QPI PLL, it is set to 1.240v, not 1.160v.
I have dropped Vcore down to 1.315v in the BIOS and I will try running Prime again to see if it is stable there, I saved the previous profile just incase it isn't though.
I think the main thing with o/cing these i920's is finding the right balance between all the main voltages, because I have tried running Prime with 1.35v Vcore and 1.415v QPI before, and it would crash after an hour, but I have considerably less QPI this time, and Prime ran for hours without any issues, and I have also been browsing at the same time to..
@phsinc, I have LLC enabled mate, if I didn't I would have to compensate for .09v of Vdroop, so that would mean I would have to set Vcore to 1.39v or something ridiculous like that, I have a 4GHz stable profile with it disabled, but tbh, I don't see the point in having it disabled, lots of guys on another forum I frequent say that it can damage chips, but I asked people here about it, and they said unless I am using xtreme voltages then it isn't going to cause any damage at all...
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
Kept it @ 8x, I didn't want to underclock my RAM by 400MHz!
I just tried it with 1.315v, and got a BSOD immediately.. so I have put it back to 1.3500v again, and I will leave it running Blend Test overnight just to be absolutely sure it is stable..
Once I get it under water I will probably push for more, I would love to have 4.5GHz for 24/7 use, I just hope I get decent temps once it's under water.
What kinda temps do you think I should get, any idea?
I will be using these components in my loop:
Aqua Computer airplex XT 360 rad
XSPC DDC Pro 10w Pump/Res
Watercool Heatkiller 3 Copper
EK FC-GTX280 block and backplate
With 7/16" ID 5/8" OD XSPC tubing and 1/2" DTek high flow barbs.
This is the first ever time I will have used water cooling, so I have been reading up like crazy trying to learn as much as possible before I set everything up, so I don't make any mistakes!!!
I just want to have temps that are below 80c, though I have seen guys with similar WC parts clocked to 4GHz and their load temps don't even reach 70c, and there are guys on OcUK with that Corsair H50 thing getting around 72c at 4GHz, and that thing only has a 120.1 rad, so I imagine using a 120.3 should give much better temps than the H50??
Well at 4.2 GHz @ 1.256v load is like mid 60's. I have a 120.4rad, check below link to see my components.
http://forums.techpowerup.com/showthread.php?t=82607
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
LoL, a quad rad just for the CPU!!!
I don't think my temps will be as good as this because I will have my GPU in the loop, and I need much higher Vcore to get 4.2GHz..
I was wondering, would a different mobo allow lower Vcore, or would it just be the same?
I'm thinking about getting the Classifed at some point in the near future.
In the past I have had chips on one mobo do 2.8GHz, but then when I got a new board, I wasn't able to get the clocks I could previously, so that tells me that the mobo does play a part in how high you can clock a chip, but I am unsure about the voltages needed.
yeah I went all out in the rad in case, this rad can handle the CPU and board perfectly fine, and when I get a HK block in the future, temps should improve by 4-5ºc, this block kinda sucks on the i7, but at the time it was one of the few choices, so I went with it, only to discover it's not great on i7's.
Well from what i've read and seen the UD5 is the most solid X58 board, the classified is nice, but I think your limiting factor here is your CPU.
AMD Ryzen 7 7800X3D // ASUS ROG Crosshair X670E Hero // ARCTIC Liquid Freezer III 360 A-RGB // G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL30 // ZOTAC Gaming GeForce RTX 4090 AMP Extreme AIRO // Samsung Pro 980 2TB NVMe (OS and Games) // WD Black 10TB HDD (Storage)
I had some time yesteday so I reset my cooler with 2 lines thermal compound method which gave me 4C improvement and new 24/7 overclock.
3922A415 batch
CPU - 1.296V (1.328V load)
VTT - 1.26V
RAM - 1.65V (1.66V shows in Everest) 7-7-7-20 (8-8-8-24 stock - I love this RAM)
IOH - 1.1V (1.12V shows in Everest)
here's my 1M SuperPi
![]()
Last edited by McDown; 09-10-2009 at 12:57 PM.
3770k @4.9ghz | ASUS Maximus V Forumla | Mushkin 994008 16gb @2133mhz | Zotac GTX 680
Nice Oc
Nice tight RAM timings, I can only get my Dominators to do 8-7-7-21-1T, can't get CAS7 at all, though I have only tested with 1.65v VDimm, I guess if I were to raise it to 1.70v they might just do CAS7?
You say you have your Vcore set to 1.296v in the BIOS but it shows 1.328v in CPUZ?
My board does the total opposite of this, if I set Vcore to 1.275v in the BIOS, it will end up being like 1.263v idle in CPUZ and under load it would be 1.248v..
quick test on 3dmark06 cpu test
4.4GHz @ 1.36v
![]()
Intel Core i7 920 D0 @ 4.2GHz 1.248v | EVGA X58 SLI Classified 760 | G.SKILL Perfect Storm F3-16000CL9T-6GBPS @ 2000 C8| 2x EVGA GeForce GTX 480 SLI | LG 37" FullHD 1080p LCDTV 37LH50YR TruMotion 200Hz | X-Fi Titanium Fatal1ty Pro | Logitech Z-5500D THX | Intel SSD X25-M G2 160GB + 8x WD Green 2TB | Pioneer DVR-S18LBK DVD-RW 22X SATA | Thermalright Venomous-X + Scythe S-Flex S-FDB 1600 | SilverStone TJ09 | Enermax Revolution 85+ 1250W | Microsoft Windows 7 Ultimate x64
I'm very impressed too. I never had Kingston before and always thought they make cheap value stuff. I only got it because OCZ was out of stock and Kingston was on sale (original price $240, sale $149) and I'm so not sorry I did it. I can run it 1700mhz at 8-8-8-20 stable as rock.
No I set 1.315V in bios, it shows 1.296V idle and 1.328V load in Windows. I think that's a Bloodrage thing. I call it VjumpYou say you have your Vcore set to 1.296v in the BIOS but it shows 1.328v in CPUZ?
My board does the total opposite of this, if I set Vcore to 1.275v in the BIOS, it will end up being like 1.263v idle in CPUZ and under load it would be 1.248v..![]()
3770k @4.9ghz | ASUS Maximus V Forumla | Mushkin 994008 16gb @2133mhz | Zotac GTX 680
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