Ah ok no problem, I thought it was only Large FFT That's an excellent CPU you have there.
Ah ok no problem, I thought it was only Large FFT That's an excellent CPU you have there.
4 GHz @ 1.104V~1.120V / 1.3250Vtt / ddr3-1527 / 7-7-7-21-60-1T
CPU:Core i7 920 BOX 3845B027
Motherboard: ASUS P6T (BIOS 0801)
mem: APOGEE APG3-1600-2GX3GT (DDR3-1600 2GB×3)
VGA: GeForce 9400GT
SSD : Patriot PE64GS25SSDR 64GB
HDD : ST3160021A
PowerSupply: Zippy 600W
CPU Cooler : MUGEN∞2(SCMG-2000) 12cmFAN*2
OS : Windows 7 64bit
Room temperature 10℃
Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [Auto]
BCLK Frequency ...................... [191]
PCIE Frequency ..................... [103]
DRAM Frequency ..................... [1531Mhz]
UCLK Frequency ..................... [3638MHz]
QPI Link Data Rate ................. [6893MT/s]
Dram Timming Control -> 7-7-7-21-4-60-1T
CPU Voltage ........................ [1.11875v]
CPU PLL Voltage .................... [1.80v]
QPI/Dram Core Voltage .............. [1.3250v]
IOH Voltage ........................ [1.20v]
IOH PCIE Voltage ................... [1.50v]
ICH Voltage ........................ [1.10v]
ICH PCIE Voltage ................... [1.50v]
Dram Bus Voltage ................... [1.66v]
Load Line Calibration.................[Enable]
Cpu Differential Amplitude..........[Auto]
CPU Spread Spectrum ................ [Enable]
PCIE Spread Spectrum ............... [Enable]
CPU Clock Skew ..................... [Auto]
IOH Clock Skew ...................... [Auto]
GFlops 48
Last edited by momoto; 11-17-2009 at 07:19 AM.
Nice, 3845B027 is about the best batch produced so far. Seems our CPUs are virtually identical in vcore requirement for 4GHz, yours requiring only 0.008v more.
Due to your low ambient temp, your chip is running around 15 - 17*C cooler than mine under load.
I have 3923A and I say it is not your nice and friendly batch.
I'm able to reach 4439 MHz with 1.45v on CPU !!!!
I was able to cplete 8 hours of prime95 and 20 runs on LinX but couldn't like the taste of running my CPU 24/7 with that voltage.
I backed off a little and now testing the CPU @ 4305 MHz with 1.35v.
I'll post pics later tonight !
That's not too bad really. There's certainly a lot worse out there.
OK here is mine, not so sharp.
Batch # 3923A
intel Core i7 980x, ASUS Rampage III Extreme , Corsair Dominator GT DDR3 2000 CL9 3x4GB , nVidia GTX 680 FTW TriSLI , Auzentech X-Fi HomeTheater HD
4.3GHz It tries lightly. 3845B027 doesn't want electricity so much. It is a very good chip. However, it is a hot chip for a moment
Nice work guys. Yeah, mine is very hot also, low VID chips need water cooling to really shine.
Here are my results, I hope I am not wrong topic.
I speaking Tarzan English excellent.
FPO: 3939A975
GA-EX58-UD5 F9E
Mushkin XP3-15000
Prolimatech Mega Shadow + 2 PF12's
This is my first attempt after building the thing. Not messed with memory timings yet. CPU seems a bit hot. I can boot and enter Win7 at 4515 (21x215) but unstable obviously...
QPI/VTT is at 1.315v. Don't really know what to use for this as i'm new to i7's.
Any suggestions for improvements other then up vcore and pump 4300mhz in ?
Last edited by AriciU; 11-19-2009 at 06:38 AM.
Intel i7 920 d0 @ 4410MHz @ 1.36v :: Prolimatech Mega Shadow :: Gigabyte EX58-UD5 F9K :: 6GB Mushkin XP3-15000 :: HIS 5870 :: Corsair 1000W :: HannsG 27.5" :: Lian Li V1010B
► ASUS P8P67 Deluxe (BIOS 1305)
► 2600K @4.5GHz 1.27v , 1 hour Prime
► Silver Arrow , push/pull
► 2x2GB Crucial 1066MHz CL7 ECC @1600MHz CL9 1.51v
► GTX560 GB OC @910/2400 0.987v
► Crucial C300 v006 64GB OS-disk + F3 1TB + 400MB RAMDisk
► CM Storm Scout + Corsair HX 1000W
+
► EVGA SR-2 , A50
► 2 x Xeon X5650 @3.86GHz(203x19) 1.20v
► Megahalem + Silver Arrow , push/pull
► 3x2GB Corsair XMS3 1600 CL7 + 3x4GB G.SKILL Trident 1600 CL7 = 18GB @1624 7-8-7-20 1.65v
► XFX GTX 295 @650/1200/1402
► Crucial C300 v006 64GB OS-disk + F3 1TB + 2GB RAMDisk
► SilverStone Fortress FT01 + Corsair AX 1200W
emertX,thats incredible,but with a chip like this
you really should consider moving somewhere
like iceland or alaska so you can keep that OC
24/7.it not fair to the chipJust kidding
but seriously thats a great OC,good job
_________________________________________________
............................ImAcOmPuTeRsPoNgE............................
[SIGPIC][/SIGPIC]
MY HEATWARE 76-0-0
Last edited by Sam_oslo; 11-22-2009 at 09:03 AM.
► ASUS P8P67 Deluxe (BIOS 1305)
► 2600K @4.5GHz 1.27v , 1 hour Prime
► Silver Arrow , push/pull
► 2x2GB Crucial 1066MHz CL7 ECC @1600MHz CL9 1.51v
► GTX560 GB OC @910/2400 0.987v
► Crucial C300 v006 64GB OS-disk + F3 1TB + 400MB RAMDisk
► CM Storm Scout + Corsair HX 1000W
+
► EVGA SR-2 , A50
► 2 x Xeon X5650 @3.86GHz(203x19) 1.20v
► Megahalem + Silver Arrow , push/pull
► 3x2GB Corsair XMS3 1600 CL7 + 3x4GB G.SKILL Trident 1600 CL7 = 18GB @1624 7-8-7-20 1.65v
► XFX GTX 295 @650/1200/1402
► Crucial C300 v006 64GB OS-disk + F3 1TB + 2GB RAMDisk
► SilverStone Fortress FT01 + Corsair AX 1200W
@ emertX
very good job bro, that is a might fine CPU you got there my friend
Yep, 4.6x is max I have seen prime or linx for any length of time. And most use abnormally low ambients to get 4.6, including myself.
At 4.4ghz, my i950 is very stable whether 72 load or 90C load (turned fans off on rad to get 90s).
At 4.5, got 11+ hrs prime and linx max mem, but with indigo tim and 23C ambients and 2rads to keep load temps in mid 70's. If load gets in high 80s = bsod.
At 4.6, I can get prime only few hours, and linx 20 run max mem, but with 15C ambients (outside temps). Inside temps = bsod.
Yeah, specially with 920 or w3520, a couple of BCLK up, and many motherboards won't even boot at 222+ with x21 multi.
It takes a really good CPU-batch (+ good MB, RAM and cooling too) to get it Prime-stable at @4.6GHZ+.
It is the ultimate 24/7 OC on the current platform, I guess.
Last edited by Sam_oslo; 11-22-2009 at 10:05 AM. Reason: Corrections
► ASUS P8P67 Deluxe (BIOS 1305)
► 2600K @4.5GHz 1.27v , 1 hour Prime
► Silver Arrow , push/pull
► 2x2GB Crucial 1066MHz CL7 ECC @1600MHz CL9 1.51v
► GTX560 GB OC @910/2400 0.987v
► Crucial C300 v006 64GB OS-disk + F3 1TB + 400MB RAMDisk
► CM Storm Scout + Corsair HX 1000W
+
► EVGA SR-2 , A50
► 2 x Xeon X5650 @3.86GHz(203x19) 1.20v
► Megahalem + Silver Arrow , push/pull
► 3x2GB Corsair XMS3 1600 CL7 + 3x4GB G.SKILL Trident 1600 CL7 = 18GB @1624 7-8-7-20 1.65v
► XFX GTX 295 @650/1200/1402
► Crucial C300 v006 64GB OS-disk + F3 1TB + 2GB RAMDisk
► SilverStone Fortress FT01 + Corsair AX 1200W
Only up to page 26..........by time I've read this thread you'll all be posting in the Gulftown thread
Visit The Boinc Bar Today
Boinc Boinc......The first 50 mil is the hardest!
POEM U.K number one.....woot
^^^
Bookmarks