Post by ground on Jun 15, 2018 8:05:54 GMT -5
A couple months I figured out that my Rampage II is a beast regarding BCLK - with my example beating the previous known top BCLK by 15 MHz with ambient cooling. I then decided that I had a new goal regarding overclocking - reaching the highest BCLK on x58 (if my boards can handle it...)
32nm, '11:
E5606:
E5606 3128C492 273.6 (286 Dice, valid.x86.fr/b2qbur)
E5606 3152A744 264 (272 at -~30, SS valid.x86.fr/bb12hx)
E5606 3128C492 262
E5606 3152A744 261 (281 at -100, cascade: valid.x86.fr/vphh25)
E5606 3128C492 259
E5606 3128C492 258
E5606 3128C492 256
E5606 3128C492 255
E5606 3116B954 255
E5606 3128C492 254
E5606 3152A744 253
E5606 3128C492 253
E5606 3128C492 253
E5606 3128C492 252
E5606 3152A744 252
E5606 3152A744 250
E5606 3204B111 250
E5606 3128C492 249
E5606 3152A744 245
E5606 3214D005 235
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3152A744 <250
E5606 3152A744 <250
E5606 3152A744 <250
E5606 3116B954 <250
E5606 3116B954 <250
E5606 3116B954 <250
E5606 3202B183 <250
E5606 3202B183 <250
E5649x1
E5649 3147C174 269.65 (4.76 R15 @1.4V) (283 @dice)
32nm, '10:
E5640x16
Sadly most of these were on a board which maxed out at 253 BCLK, so I couldn't do as extensive testing (and I already resold most of these). Best one did 253 BCLK (this was after I was mad at the chip being unstable in 4.9 Cinebench at 1.45V). Binning Data incomplete.
E5640 3104C403 270 (4.74GHz R15 at 1.4V) (287.3 Dice valid.x86.fr/7meuwa)
E5640 3104C403 265 (4.78GHz R15 at 1.4V)
E5640 3104C403 255
E5640 3116B925 253
E5640 3104C403 243
E5640 3003B404 241
E5640 3038A995 230
E5640 L038A827 225
E5620x4 + x8 Tapakah
E5620 3201B759 256 (4.7/1.3V 32M)
E5620 3201B759 252
E5620 Unknown 238
E5620 3038B045 230
E5620 3019A816 243
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3041B447 <240
X5650x4
X5650 3038A141 244 (266 SS)
X5650 unknown 238
X5650 unknown 235
X5650 unknown 222
45nm, D0:
W3520
W3520 3849A734 238 (4.5/1.3V 32m)
W3520 3847A700 233
W3520 3949A608 231
W3520 3847A703 231
W3520 3946A269 228
W3520 3946A269 225
W3520 3946A269 225
W3520 3946A269 225
W3520 3013A424 224
W3520 3913B220 222
W3520 3946A269 221
W3520 3941B133 221
W3520 3946A269 221
W3520 3002A679 221
W3520 3003B139 221
W3520 3919A569 221
W3520 3941B113 219
W3520 3951A169 210
W3520 3844A733 150
W3530
W3530 3020A571 232 (4.5/1.4V 32m)
W3530 3101A273 225
W3530 3140B357 221
W3530 3102C311 220
W3530 3052B884 220
W3530 3043A272 220
W3530 3006B132 220
W3530 3110C700 215
W3530 3041B239 215
W3530 3109C356 210
W3530 3101A273 210
W3530 3111B660 205
i7 920
i7 920 3849A823 230 (4.5 1.4V 32m)
i7 920 3926A286 218 (4.5 1.4V 32m)
i7 920 3913B268 212
E5506
E5506 3122D673 230
I had a couple more that I resold before doing more in depth testing (W3680 that didn't manage 4.0 at 1.4V and barely managed 250 BCLK, L5640 that maxed out somewhere around 238 BCLK)
Most testing was done with the following settings:
MB - Asus Rampage 2 Extreme
RAM - 2 or 6 GB Elpida BDSE (manages 2000 MHz, shouldn't hold me back. I've now managed to find a set of Hypers rated 8-8-8 @2000, but they seem to manage 6-6-6 @1900 with relative ease. Need more testing for 6-6-6 @2000)
CPU Cooler - Alpenföhn Brocken Eco (usually weighed down by a pile of books)
Fan - fans pointed at VRM and NB
VGA - 8600 GT, maxes out at 138 PCIe
PSU - BeQuiet! L8 530W
HDD - Maxtor 61 GB IDE
----------------------------------------------
AI overclock - manual
OC from CPU level up - auto
OC from Memory level up - auto
CPU Ratio setting - 13
CPU configuration
CPU Ratio Setting - 13
C1E Support - disable
Hardware prefetcher - enable
Adjacent Cache line prefetcher - disable
Intel Virtualization tech - disabled
CPU TM Function - disable
Execute Disabled bit - disabled
Intel HT Technology - disable (though this made little difference)
Active Processor Cores - all (made little to no difference)
A20M - disabled
Intel Speedstep tech - disable
Intel C-STATE tech - disabled
BCLK frequency - 250, max the board can boot at is 261. Oddly enough the shown clock speed freaks out above 255 (I suspect an overflow)
PCIE frequency - 118 (max the board can boot)
DRAM frequency - DDR3 1504MHz
UCLK frequency - 3510MHz
QPI frequency - Slow Mode (this starts being necessary above ~225-240 BCLK)
Dram timing control
Fairly lose timings for BCLK testing
EPU II phase control - full phase
Load-line calibration - disable
CPU differential amplitude - 1000mV
Extreme OV - disabled
Current voltage 1.45v - 1.812v - 1.375v (May be different)
Cpu voltage - 1.45V
CPU PLL voltage - 1.812V
QPI-Dram voltage - 1.375V (haven't had a CPU die with these settings, basically no scaling even if upped to 1.5V. I have a couple basically useless E5606s that I want to test with up to 1.8V and see if that makes any difference...)
Current voltage 1.139v - 1.508v - 1.26v - 1.508v
IOH voltage - 1.39166v (without slow mode this is extremely important, can bring 10-20 MHz)
IOH PCIE voltage - 1.51106v
ICH voltage- 1.25916v (this can help booting more PCIe, but it requires about 0.2V/MHz and isn't really worth touching)
ICH PCIE voltage - 1.51106v
Current voltage 1.8v
DRAM Bus voltage - 1.64356v
DRAM REF voltage - auto
Debug mode - string
Keyboard TweakIt control - disabled
CPU spread spectrum - disabled
PCIE spectrum - disabled
CPU clock skew - auto (for binning these remain on auto, manually tweaking them can yield 2-3 MHz and isn't really worth the time while binning)
IOH clock skew - auto
After that, I booted into windows, started SetFSB, selected ICS9LPRS916JGLF, upped PCIe to close to the max the current setup can handle (135-138 MHz) and then upped BCLK in small steps (1-3 MHz at a time).
PCIe formula:
Rough formula for PCIe scaling: (BCLK-221)*0.445+100
(I also have a couple other boards, a DFI x58 DK-T3eH6 with a dead BIOS and a Gigabyte x58a-oc that maxes out at a usable 266 BCLK/268 very unstable)
If anyone has any questions, more ideas or experience feel free to share
Temperature scaling:
Going with very limited information (2 CPUs, air, SS and LN2):
Scaling on x5650:
Very inaccurate representation, but enough to see a general trend with just the 4 given points. It is possible there are settings we missed (was just helping out a teammate maxing out his x5650 - top 3 for an entire platform seems fair for a random CPU). Peak BCLK on this CPU is somewhere between -35°C and -50°C, while peak benchable clocks are closer to the cold bug. Will do more testing once I get my own source of cold - currently only backseat benching with a member of my team. Btw, if anyone wants me to join them for for their own session with any 1366 CPU under cold I would be up for that for sure, I need more data
Information found elsewhere:
high vtt can change the coldbug, usually in an unwanted way
www.techpowerup.com/forums/threads/picking-cpus-by-batch-cherry-picking.157547/
www.overclockers.com/forums/showthread.php/592186-i7-920-max-bclk-on-AIR-230Bclk
www.xtremesystems.org/forums/showthread.php?214381-DFI-X58-i7-920-max-bclk-on-AIR-230Bclk
extreme.pcgameshardware.de/overclocking-prozessoren/359269-how-uebertakten-mit-rw-everything-auf-non-oc-boards-alternative-zu-setfsb.html
forums.tweaktown.com/gigabyte/39229-gigabyte-award-x58-bios-led-debug-codes.html
www.xtremesystems.org/forums/showthread.php?223694-222-Bclk-quot-wall-quot-help-me-out-here&p=3769982&viewfull=1#post3769982 <--- reason for PCIe requirement and some extra data
www.xtremesystems.org/forums/showthread.php?209143-Team-AU-Gigabyte-X58-UD5-3GB-Corsair-1866MHz-CAS8-Core-i7-920-Testing-thread/page4&p=3794415#post3794415 more pcie stuff
www.xtremesystems.org/forums/showthread.php?261643-I7-uncore-dram-rule
www.madshrimps.be/vbulletin/f10/mass-msi-x58-eclipse-sli-64610/ Slowmode explained
www.madshrimps.be/vbulletin/f10/core-i7-thoughts-findings-one-thread-combine-them-65704/
i4memory.com/showthread.php?t=15908 x58 + Hyper tricks
Stuff to test on a CPU basis after initial binning:
45nm VTT voltage scaling (impact almost not noticeable for 32nm, heard there are chips that scale up to 1.65V VTT at ambient which needs more testing.
45nm DFI vs Asus, have a semi-dead Lanparty board that needs a resurrection...
High DRAM volts (1.8+)
Board Limitation:
Given that on other BCLK platforms the board is often the limiting factor, I've been trying to find more data on this; currently I only have 4 boards worth noting on the list:
1: x58a-oc: 268; limited by board (seems like I've hit a dud there, the CPU did, at the time, 269.65)
2: Rampage II Extreme: 271; likely limited by CPU
3: Rampage II Extreme: 276.5 COLD; either limited by board, CPU, or just by cooling (SS wasn't as cold as it could've been)
4: Rampage III Formula: 277.59 COLD; likely limited by CPU/temp precision
Likely best boards for the platform/bclk (only listing boards I’ve heard reports/had myself/can extrapolate from experience with very similar boards)
Top tier: Rampage III Black Edition, x58a-oc
High mid tier: x58a-ud9, x58a-ud7, Rampage III Extreme/Formula, Foxconn Bloodrage(needs hardmod!), MSI Big Bang, Evga Classified,
Mid Tier: Rampage II Extreme, x58a-ud3r, x58a-ud5, P6T WS variants, Rampage III/II Gene
Lower tier: P6T SE, Asus Sabertooth, gigabyte EX58 (need hardmods), Evga non-classified, MSI x58 Pro-E
-Ground
32nm, '11:
E5606:
E5606 3128C492 273.6 (286 Dice, valid.x86.fr/b2qbur)
E5606 3152A744 264 (272 at -~30, SS valid.x86.fr/bb12hx)
E5606 3128C492 262
E5606 3152A744 261 (281 at -100, cascade: valid.x86.fr/vphh25)
E5606 3128C492 259
E5606 3128C492 258
E5606 3128C492 256
E5606 3128C492 255
E5606 3116B954 255
E5606 3128C492 254
E5606 3152A744 253
E5606 3128C492 253
E5606 3128C492 253
E5606 3128C492 252
E5606 3152A744 252
E5606 3152A744 250
E5606 3204B111 250
E5606 3128C492 249
E5606 3152A744 245
E5606 3214D005 235
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3128C492 <250
E5606 3152A744 <250
E5606 3152A744 <250
E5606 3152A744 <250
E5606 3116B954 <250
E5606 3116B954 <250
E5606 3116B954 <250
E5606 3202B183 <250
E5606 3202B183 <250
E5649x1
E5649 3147C174 269.65 (4.76 R15 @1.4V) (283 @dice)
32nm, '10:
E5640x16
Sadly most of these were on a board which maxed out at 253 BCLK, so I couldn't do as extensive testing (and I already resold most of these). Best one did 253 BCLK (this was after I was mad at the chip being unstable in 4.9 Cinebench at 1.45V). Binning Data incomplete.
E5640 3104C403 270 (4.74GHz R15 at 1.4V) (287.3 Dice valid.x86.fr/7meuwa)
E5640 3104C403 265 (4.78GHz R15 at 1.4V)
E5640 3104C403 255
E5640 3116B925 253
E5640 3104C403 243
E5640 3003B404 241
E5640 3038A995 230
E5640 L038A827 225
E5620x4 + x8 Tapakah
E5620 3201B759 256 (4.7/1.3V 32M)
E5620 3201B759 252
E5620 Unknown 238
E5620 3038B045 230
E5620 3019A816 243
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3019A816 <240
E5620 3041B447 <240
X5650x4
X5650 3038A141 244 (266 SS)
X5650 unknown 238
X5650 unknown 235
X5650 unknown 222
45nm, D0:
W3520
W3520 3849A734 238 (4.5/1.3V 32m)
W3520 3847A700 233
W3520 3949A608 231
W3520 3847A703 231
W3520 3946A269 228
W3520 3946A269 225
W3520 3946A269 225
W3520 3946A269 225
W3520 3013A424 224
W3520 3913B220 222
W3520 3946A269 221
W3520 3941B133 221
W3520 3946A269 221
W3520 3002A679 221
W3520 3003B139 221
W3520 3919A569 221
W3520 3941B113 219
W3520 3951A169 210
W3520 3844A733 150
W3530
W3530 3020A571 232 (4.5/1.4V 32m)
W3530 3101A273 225
W3530 3140B357 221
W3530 3102C311 220
W3530 3052B884 220
W3530 3043A272 220
W3530 3006B132 220
W3530 3110C700 215
W3530 3041B239 215
W3530 3109C356 210
W3530 3101A273 210
W3530 3111B660 205
i7 920
i7 920 3849A823 230 (4.5 1.4V 32m)
i7 920 3926A286 218 (4.5 1.4V 32m)
i7 920 3913B268 212
E5506
E5506 3122D673 230
I had a couple more that I resold before doing more in depth testing (W3680 that didn't manage 4.0 at 1.4V and barely managed 250 BCLK, L5640 that maxed out somewhere around 238 BCLK)
Most testing was done with the following settings:
MB - Asus Rampage 2 Extreme
RAM - 2 or 6 GB Elpida BDSE (manages 2000 MHz, shouldn't hold me back. I've now managed to find a set of Hypers rated 8-8-8 @2000, but they seem to manage 6-6-6 @1900 with relative ease. Need more testing for 6-6-6 @2000)
CPU Cooler - Alpenföhn Brocken Eco (usually weighed down by a pile of books)
Fan - fans pointed at VRM and NB
VGA - 8600 GT, maxes out at 138 PCIe
PSU - BeQuiet! L8 530W
HDD - Maxtor 61 GB IDE
----------------------------------------------
AI overclock - manual
OC from Memory level up - auto
CPU Ratio setting - 13
CPU configuration
CPU Ratio Setting - 13
C1E Support - disable
Hardware prefetcher - enable
Adjacent Cache line prefetcher - disable
Intel Virtualization tech - disabled
CPU TM Function - disable
Execute Disabled bit - disabled
Intel HT Technology - disable (though this made little difference)
Active Processor Cores - all (made little to no difference)
A20M - disabled
Intel Speedstep tech - disable
Intel C-STATE tech - disabled
BCLK frequency - 250, max the board can boot at is 261. Oddly enough the shown clock speed freaks out above 255 (I suspect an overflow)
PCIE frequency - 118 (max the board can boot)
DRAM frequency - DDR3 1504MHz
UCLK frequency - 3510MHz
QPI frequency - Slow Mode (this starts being necessary above ~225-240 BCLK)
Dram timing control
Fairly lose timings for BCLK testing
EPU II phase control - full phase
Load-line calibration - disable
CPU differential amplitude - 1000mV
Extreme OV - disabled
Current voltage 1.45v - 1.812v - 1.375v (May be different)
Cpu voltage - 1.45V
CPU PLL voltage - 1.812V
QPI-Dram voltage - 1.375V (haven't had a CPU die with these settings, basically no scaling even if upped to 1.5V. I have a couple basically useless E5606s that I want to test with up to 1.8V and see if that makes any difference...)
Current voltage 1.139v - 1.508v - 1.26v - 1.508v
IOH voltage - 1.39166v (without slow mode this is extremely important, can bring 10-20 MHz)
IOH PCIE voltage - 1.51106v
ICH voltage- 1.25916v (this can help booting more PCIe, but it requires about 0.2V/MHz and isn't really worth touching)
ICH PCIE voltage - 1.51106v
Current voltage 1.8v
DRAM Bus voltage - 1.64356v
DRAM REF voltage - auto
Debug mode - string
Keyboard TweakIt control - disabled
CPU spread spectrum - disabled
PCIE spectrum - disabled
CPU clock skew - auto (for binning these remain on auto, manually tweaking them can yield 2-3 MHz and isn't really worth the time while binning)
IOH clock skew - auto
After that, I booted into windows, started SetFSB, selected ICS9LPRS916JGLF, upped PCIe to close to the max the current setup can handle (135-138 MHz) and then upped BCLK in small steps (1-3 MHz at a time).
PCIe formula:
Rough formula for PCIe scaling: (BCLK-221)*0.445+100
(I also have a couple other boards, a DFI x58 DK-T3eH6 with a dead BIOS and a Gigabyte x58a-oc that maxes out at a usable 266 BCLK/268 very unstable)
If anyone has any questions, more ideas or experience feel free to share
Temperature scaling:
Going with very limited information (2 CPUs, air, SS and LN2):
Scaling on x5650:
Very inaccurate representation, but enough to see a general trend with just the 4 given points. It is possible there are settings we missed (was just helping out a teammate maxing out his x5650 - top 3 for an entire platform seems fair for a random CPU). Peak BCLK on this CPU is somewhere between -35°C and -50°C, while peak benchable clocks are closer to the cold bug. Will do more testing once I get my own source of cold - currently only backseat benching with a member of my team. Btw, if anyone wants me to join them for for their own session with any 1366 CPU under cold I would be up for that for sure, I need more data
Information found elsewhere:
high vtt can change the coldbug, usually in an unwanted way
www.techpowerup.com/forums/threads/picking-cpus-by-batch-cherry-picking.157547/
www.overclockers.com/forums/showthread.php/592186-i7-920-max-bclk-on-AIR-230Bclk
www.xtremesystems.org/forums/showthread.php?214381-DFI-X58-i7-920-max-bclk-on-AIR-230Bclk
extreme.pcgameshardware.de/overclocking-prozessoren/359269-how-uebertakten-mit-rw-everything-auf-non-oc-boards-alternative-zu-setfsb.html
forums.tweaktown.com/gigabyte/39229-gigabyte-award-x58-bios-led-debug-codes.html
www.xtremesystems.org/forums/showthread.php?223694-222-Bclk-quot-wall-quot-help-me-out-here&p=3769982&viewfull=1#post3769982 <--- reason for PCIe requirement and some extra data
www.xtremesystems.org/forums/showthread.php?209143-Team-AU-Gigabyte-X58-UD5-3GB-Corsair-1866MHz-CAS8-Core-i7-920-Testing-thread/page4&p=3794415#post3794415 more pcie stuff
www.xtremesystems.org/forums/showthread.php?261643-I7-uncore-dram-rule
www.madshrimps.be/vbulletin/f10/mass-msi-x58-eclipse-sli-64610/ Slowmode explained
www.madshrimps.be/vbulletin/f10/core-i7-thoughts-findings-one-thread-combine-them-65704/
i4memory.com/showthread.php?t=15908 x58 + Hyper tricks
Stuff to test on a CPU basis after initial binning:
45nm VTT voltage scaling (impact almost not noticeable for 32nm, heard there are chips that scale up to 1.65V VTT at ambient which needs more testing.
45nm DFI vs Asus, have a semi-dead Lanparty board that needs a resurrection...
High DRAM volts (1.8+)
Board Limitation:
Given that on other BCLK platforms the board is often the limiting factor, I've been trying to find more data on this; currently I only have 4 boards worth noting on the list:
1: x58a-oc: 268; limited by board (seems like I've hit a dud there, the CPU did, at the time, 269.65)
2: Rampage II Extreme: 271; likely limited by CPU
3: Rampage II Extreme: 276.5 COLD; either limited by board, CPU, or just by cooling (SS wasn't as cold as it could've been)
4: Rampage III Formula: 277.59 COLD; likely limited by CPU/temp precision
Likely best boards for the platform/bclk (only listing boards I’ve heard reports/had myself/can extrapolate from experience with very similar boards)
Top tier: Rampage III Black Edition, x58a-oc
High mid tier: x58a-ud9, x58a-ud7, Rampage III Extreme/Formula, Foxconn Bloodrage(needs hardmod!), MSI Big Bang, Evga Classified,
Mid Tier: Rampage II Extreme, x58a-ud3r, x58a-ud5, P6T WS variants, Rampage III/II Gene
Lower tier: P6T SE, Asus Sabertooth, gigabyte EX58 (need hardmods), Evga non-classified, MSI x58 Pro-E
-Ground