New i7 920 D0 - 3845B260
This is a discussion on New i7 920 D0 - 3845B260 within the General Intel Motherboards / CPU forums, part of the Intel motherboards / CPU category; Started testing this newest member of my week 45, 2008 batch family - i7 920 3845B260 cpu. Nice temps although ...
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29-10-2009, 11:13 PM
| #1 (permalink) |
| Administrator |  New i7 920 D0 - 3845B260
Started testing this newest member of my week 45, 2008 batch family - i7 920 3845B260 cpu. Nice temps although 4Ghz prime95 mark vcore required is slightly higher than my other cpus.   System:
4Ghz Prime95 Comparison results
i7 920 3845B260 default auto vcore and 4Ghz 1.216v Prime95   |
| Last edited by eva2000; 11-12-2009 at 02:34 PM. | |
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29-10-2009, 11:13 PM
| #2 (permalink) |
| Administrator | 4200Mhz at 1.288v Next stop 4.2Ghz at 1.288v. i7 920 3845B260 seems to be one of those higher vcore low temp cpus - it runs around 0.05v higher vcore than my Xeon 3845 cpus but runs around 3-5C cooler than my W3520 3845A935 and around 10-13C cooler than my W3540 3845B010 at same clock speeds even with higher vcore requirements!  BCLK Testing @19x211 = 4005Mhz Still early days with new i7 920 3845B260 cpu, currently testing cpu side of things = bclk testing first stop @211bclk. Gskill Trident @844Mhz 8-9-8-24 1T at 1.66v. Super Pi 8x32M  LinX 0.6.4 - quick 5 pass test   click image for full screenshots Load and Post-load Idle   |
| Last edited by eva2000; 31-10-2009 at 02:54 AM. | |
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29-10-2009, 11:13 PM
| #3 (permalink) |
| Administrator |
Trying to figure out max super pi 32M bclk headroom for this i7 920 3845B260 cpu and it looks very nice managing to boot straight from bios into windows at 227bclk bios set (226.8bclk) to run Super Pi 32M and then using Asus TurboV to push bclk to 228bclk (227.7bclk) to run Super Pi 32M. Ended up with screenie @229bclk (228.7bclk)  System:
bios set boot into windows @227bclk  TurboV bumped to 228bclk and 229bclk   Bios settings Code: **************************** AI Tweaker **************************** AI Overclock Tuner: Manual CPU Ratio Setting: 18 Intel(R) SpeedStep(TM) Tech: Disabled BCLK Frequency: 227 PCIE Frequency: 104 DRAM Frequency: DDR3-1818Mhz UCLK Frequency: 3634Mhz QPI Link Data Rate: AUTO ******************* DRAM Timing Control ******************* DRAM CAS Latency: 8 DRAM Clock DRAM RAS# to CAS# Delay : 9 DRAM Clock DRAM RAS# PRE Time: 8 DRAM Clock DRAM RAS# ACT Time: 24 DRAM Clock DRAM RAS# to RAS# Delay: AUTO DRAM REF Cycle Time: 88 DRAM WRITE Recovery Time: AUTO DRAM READ to PRE Time: AUTO DRAM FOUR ACT WIN Time: 31 DRAM Back-To-Back CAS# Delay: AUTO DRAM Timing Mode: 1N DRAM Round Trip Latency on CHA: AUTO DRAM Round Trip Latency on CHB: AUTO DRAM Round Trip Latency on CHC: AUTO DRAM WRITE To READ Delay(DD): AUTO DRAM WRITE To READ Delay(DR): AUTO DRAM WRITE To READ Delay(SR): AUTO DRAM READ To WRITE Delay (DD): AUTO DRAM READ To WRITE Delay (DR): AUTO DRAM READ To WRITE Delay (SR): AUTO DRAM READ To READ Delay(DD): AUTO DRAM READ To READ Delay(DR): AUTO DRAM READ To READ Delay(SR): AUTO DRAM WRITE To WRITE Delay(DD): AUTO DRAM WRITE To WRITE Delay(DR): AUTO DRAM WRITE To WRITE Delay(SR): AUTO **************************** CPU Voltage: 1.29375v CPU PLL Voltage: 1.80 QPI/DRAM Core Voltage: 1.50 IOH Voltage: 1.22 IOH PCIE Voltage: 1.50 ICH Voltage: 1.10 ICH PCIE Voltage: 1.50 DRAM Bus Voltage: 1.70 DRAM DATA REF Voltage on CHA: AUTO DRAM CTRL REF Voltage on CHA: AUTO DRAM DATA REF Voltage on CHB: AUTO DRAM CTRL REF Voltage on CHB: AUTO DRAM DATA REF Voltage on CHC: AUTO DRAM CTRL REF Voltage on CHC: AUTO **************************** Load-Line Calibration: AUTO CPU Differential Amplitude: 1000mv CPU Clock Skew: Delay 300ps CPU Spread Spectrum: Disabled IOH Clock Skew: AUTO PCIE Spread Spectrum: Disabled CPU Advance Settings C1E Support: Disabled Hardware Prefetcher: Enabled Adjacent Cache Line Prefetcher: Enabled Intel (R) Virtualization Tech: Disabled CPU TM Function: Disabled Execute Disable Bit: Disabled Intel (R) HT Technology: Enabled Active Processor Cores: ALL A20M: Disabled Intel(R) SpeedStep(TM) Tech: Disabled Intel (R) C-State Tech: Disabled **************************** Express Gate: Disabled |
| Last edited by eva2000; 01-11-2009 at 11:34 PM. | |
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29-10-2009, 11:13 PM
| #4 (permalink) |
| Administrator |
Surprised the cpu handles benchable high bclk 228 and even 6x2GB at high mem frequencies. How's 12GB @DDR3-2000-2112Mhz ? Full results at 12GB A-DATA 2000X DDR3 testing 12GB A-Data 2000X to 8x32M Pi stable @DDR3-2000Mhz 8-9-8-25 2T at 1.62v vdimm with 1.50 QPI/DRAM uncore voltage with max validation at same voltages @DDR3-2112Mhz 8-9-8-25 2T!  System:
12GB - 6x2GB A-Data 2000X @DDR3-2000Mhz 8-9-8-25 2T at 1.62v (Kit 1 + 2: module #1 + #2 + #4 + #3 + #5 + #6) tRFC = 110 tFAW = 38 B2B = 4 HyperPi v0.99b - 8x32M Pi  Single Super Pi 32M  Everest Bandwidth  12GB - 6x2GB A-Data 2000X @DDR3-2112Mhz 8-9-8-25 2T at 1.62v (Kit 1 + 2: module #1 + #2 + #4 + #3 + #5 + #6)   Messing around with Arena2 Chess to see how it handles, only using 3x2GB A-Data 2000X @DDR3-2000Mhz 8-9-8-24 1T at 1.64v for this.  Code: FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1 Cyclone xTreme II: 1/1 00:00 2 0 +0.08 Nb1a3 1/1 00:00 3 0 +0.51 Nb1c3 2/2 00:00 43 0 +0.20 Nb1c3 Nb8c6 3/3 00:00 150 0 +0.51 Nb1c3 Nb8c6 Ng1f3 4/4 00:00 260 0 +0.20 Nb1c3 Nb8c6 Ng1f3 Ng8f6 5/6 00:00 893 0 +0.09 Nb1c3 Nb8c6 Ng1f3 Ng8f6 d2d4 6/11 00:00 1.895 0 +0.20 Nb1c3 Nb8c6 Ng1f3 Ng8f6 d2d4 d7d5 7/11 00:00 3.795 0 +0.12 Nb1c3 Nb8c6 Ng1f3 Ng8f6 d2d4 d7d5 Bc1f4 8/12 00:00 8.316 0 +0.20 Nb1c3 Nb8c6 Ng1f3 Ng8f6 d2d4 d7d5 Bc1f4 Bc8f5 9/16 00:00 10.687 0 +0.17 Nb1c3 Ng8f6 Ng1f3 d7d5 d2d4 Bc8f5 Nf3h4 Bf5e4 Nc3xe4 Nf6xe4 10/16 00:00 15.463 0 +0.20 Nb1c3 Ng8f6 Ng1f3 d7d5 d2d4 Bc8f5 Bc1f4 Nb8c6 e2e3 h7h6 11/19 00:00 21.622 0 +0.12 Nb1c3 Ng8f6 Ng1f3 d7d5 d2d4 Bc8f5 Nf3h4 Bf5c8 Bc1f4 Nb8c6 Nh4f3 11/23 00:00 120.459 0 +0.19 e2e4 Nb8c6 d2d4 d7d5 e4xd5 Qd8xd5 Ng1f3 Qd5e4+ Bc1e3 Ng8f6 Nb1c3 Qe4g4 Nf3e5 12/23 00:00 269.741 0 +0.20 e2e4 e7e5 Nb1c3 Ng8f6 Bf1c4 Nb8c6 Ng1f3 Bf8c5 OO OO d2d3 d7d6 13/27 00:00 508.446 0 +0.08 e2e4 e7e5 Nb1c3 Ng8f6 Bf1c4 Nb8c6 Ng1f3 Bf8c5 OO OO d2d3 d7d6 Bc1e3 Bc5xe3 f2xe3 13/27 00:00 567.126 0 +0.13 Nb1c3 Ng8f6 Ng1f3 d7d5 d2d4 Nb8c6 e2e3 e7e6 Bf1b5 Bf8d6 OO OO Bb5xc6 b7xc6 14/27 00:00 721.586 0 +0.14 Nb1c3 Ng8f6 Ng1f3 Nb8c6 e2e4 e7e5 Bf1c4 Bf8c5 OO OO d2d3 d7d6 Bc1g5 Bc8e6 Bc4xe6 f7xe6 15/27 00:01 1.230.256 8.678.501 +0.14 Nb1c3 Ng8f6 Ng1f3 Nb8c6 e2e4 e7e5 Bf1c4 Bf8b4 OO OO Qd1e2 d7d6 d2d3 Bb4xc3 b2xc3 Bc8e6 16/34 00:02 2.524.028 8.560.158 +0.14 Nb1c3 Ng8f6 Ng1f3 Nb8c6 e2e4 e7e5 Bf1c4 Bf8b4 OO OO Nc3d5 Rf8e8 Nd5xb4 Nc6xb4 d2d3 d7d5 e4xd5 Nb4xd5 17/36 00:07 8.215.681 8.453.085 +0.05 Nb1c3 d7d5 d2d4 Ng8f6 Ng1f3 e7e6 Bc1d2 Nb8c6 e2e3 Bf8d6 Bf1d3 OO OO Nc6b4 Nf3e5 Nb4xd3 c2xd3 Bd6xe5 d4xe5 17/40 00:10 10.711.961 8.402.367 +0.13 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 Bf8c5 OO Ng8f6 d2d3 OO Nb1c3 d7d6 Bc1e3 Bc5xe3 f2xe3 Bc8e6 Bb5xc6 b7xc6 Nf3g5 18/40 00:18 20.154.353 8.494.412 +0.31 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8c5 b2b4 Bc5d6 Qf3g3 Qd8f6 Bc1b2 Ng8e7 19/40 00:23 25.389.233 8.524.140 +0.23 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8c5 b2b4 Bc5d6 Qf3g3 Qd8f6 Bc1b2 Ng8e7 Nb1a3 20/41 00:37 39.905.953 8.606.180 +0.19 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8c5 b2b4 Bc5d6 Qf3g3 Qd8f6 Bc1a3 Ng8e7 Nb1c3 OO 21/48 01:14 80.606.063 8.613.655 +0.29 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8c5 d2d3 Qd8f6 Qf3e2 Ng8e7 Bc1e3 Bc5d6 Nb1d2 OO Nd2c4 22/48 01:46 114.437.924 8.601.123 +0.27 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8d6 Qf3b3 b7b5 Nb1c3 Ng8f6 d2d3 OO Bc1g5 Qd8e7 a2a4 Bd6c5 23/54 03:43 242.284.086 8.658.380 +0.31 e2e4 e7e5 Ng1f3 Nb8c6 Bf1b5 a7a6 Bb5xc6 d7xc6 OO Bc8g4 h2h3 Bg4xf3 Qd1xf3 Bf8d6 d2d3 Qd8f6 Nb1d2 Qf6xf3 Nd2xf3 Ng8f6 c2c3 Ke8d7 Bc1e3 h7h6 a2a4 Rh8g8 |
| Last edited by eva2000; 30-04-2010 at 06:41 AM. | |
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29-10-2009, 11:13 PM
| #5 (permalink) |
| Administrator |
Time to start pushing this i7 920 3845B260 before my Xeon W3570 arrives First stop Super Pi 32M @4510Mhz at 1.464v and CPUZ max validation @4685Mhz at 1.464v. Will push it more tomorrow as today it's 31-32C room ambients. Load temps for Pi were around 66-73C. System:
4510Mhz at 1.464v  4685Mhz at 1.464v   |
| Last edited by eva2000; 18-11-2009 at 01:15 AM. | |
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29-10-2009, 11:14 PM
| #6 (permalink) |
| Administrator |
Swapped to my trusty 6GB Corsair Dominator GT 2000C7 for pushing max Super Pi 32M Pi and for HT enabled and disabled max cpuz validations System:
i7 920 @4616Mhz HT enabled at 1.536v  Max CPUZ Validation @4760Mhz HT enabled at 1.568v   i7 920 @4700Mhz HT disabled at 1.568v  Max CPUZ Validation @4785Mhz HT disabled at 1.568v Probably hit a bclk limit and/or cpu cooling limit for water cooling ?  Time to make way for my Xeon W3570 with unlocked cpu multiplier which should arrive tomorrow |
| Last edited by eva2000; 18-11-2009 at 11:36 PM. | |
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| Tags |
| 3845, 3845b260, asus p6t6, ddr3, gskill trident, i7 920 |
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