bwh Posted August 14, 2014 Share Posted August 14, 2014 I have an i7-4930K overclocked to 4.33GHz. In AIDA64, the DDR3 speed is showing as 1280MHz (the system has 2133MHz installed). At first I thought it might just be a similar thing to CPU-Z where the speed shown must be doubled for dual-channel DDR3, but other example systems in the attached are listed with correct speeds. Is this a problem with my system that needs to be put right (I didn't do the overclock - the system builders did, so I'd need to contact them because I'm a bit of a tech chump), or a misreading or other oddity that I can ignore? Many thanks in advance. Quote Link to comment Share on other sites More sharing options...
Fiery Posted August 15, 2014 Share Posted August 15, 2014 Please right-click on the bottom status bar of AIDA64 main window --> System Debug --> PCI Dump. Copy-paste the full results here. Thanks, Fiery Quote Link to comment Share on other sites More sharing options...
bwh Posted August 16, 2014 Author Share Posted August 16, 2014 Hello Fiery - many thanks. I've attached it as a text file (it was too long for the forum box)... pcidump.txt Quote Link to comment Share on other sites More sharing options...
Fiery Posted August 17, 2014 Share Posted August 17, 2014 Thank you. Please let me know the exact configuration of your CPU and memory, like BCLK frequency, CPU core multiplier, and DRAM:BCLK ratio as configured in the BIOS Setup. Quote Link to comment Share on other sites More sharing options...
bwh Posted August 18, 2014 Author Share Posted August 18, 2014 BCLK Frequency is 159.97MHz (verified in BIOS) CPU Core multipliers are all set at 27 (verified in BIOS) Other details from CPU-Z in the attached CPU image - they seem to accord with entries I could see in the BIOS. DRAM details I've included in the attached from CPU-Z which also seem to match the entries in the BIOS as far as I can see (BIOS n00b at large!) CPU-Z also seems to be reporting an odd MHz (it's certainly not 2133MHz halved). I removed the modules and checked their part numbers online - they're definitely 2133MHz modules. A few other numbers from CPU-Z..... Timers ------------------------------------------------------------------------- ACPI timer 3.580 MHz HPET timer 14.318 MHz Perf timer 4.219 MHz Sys timer 1.000 KHz Processors Information ------------------------------------------------------------------------- Number of cores 6 (max 16) Number of threads 12 (max 32) Name Intel Core i7 4930K Codename Ivy Bridge-E Specification Intel® Core i7-4930K CPU @ 3.40GHz Package (platform ID) Socket 2011 LGA (0x2) CPUID 6.E.4 Extended CPUID 6.3E Core Stepping S0/S1 Technology 22 nm TDP Limit 130 Watts Tjmax 95.0 °C Core Speed 4319.2 MHz Multiplier x Bus Speed 27.0 x 160.0 MHz Rated Bus speed 5119.0 MHz Stock frequency 3400 MHz Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX L1 Data cache 6 x 32 KBytes, 8-way set associative, 64-byte line size L1 Instruction cache 6 x 32 KBytes, 8-way set associative, 64-byte line size L2 cache 6 x 256 KBytes, 8-way set associative, 64-byte line size L3 cache 12 MBytes, 16-way set associative, 64-byte line size FID/VID Control yes Turbo Mode supported, disabled Max non-turbo ratio 27x Max turbo ratio 39x Max efficiency ratio 12x Min Power 60 Watts O/C bins unlimited Ratio 1 core 39x Ratio 2 cores 37x Ratio 3 cores 37x Ratio 4 cores 37x Ratio 5 cores 36x Ratio 6 cores 36x Ratio 7 cores 36x Ratio 8 cores 36x TSC 4319.8 MHz APERF 4319.8 MHz MPERF 4319.8 MHz DIMM (numbers from 2nd module) SMBus address 0x54 Memory type DDR3 Module format UDIMM Manufacturer (ID) Kingston (7F980000000000000000) Size 8192 MBytes Max bandwidth PC3-10700 (667 MHz) Part number KHX2133C11D3/8GX Serial number 6C1BDB52 Manufacturing date Week 20/Year 14 Number of banks 8 Nominal Voltage 1.50 Volts EPP no XMP yes XMP revision 1.3 AMP no JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency JEDEC #1 6.0-6-6-17-23 @ 457 MHz JEDEC #2 7.0-7-7-20-27 @ 533 MHz JEDEC #3 8.0-8-8-22-30 @ 609 MHz JEDEC #4 9.0-9-9-24-33 @ 666 MHz XMP profile XMP-2132 Specification PC3-17100 Voltage level 1.600 Volts Min Cycle time 0.938 ns (1066 MHz) Max CL 11.0 Min tRP 10.31 ns Min tRCD 11.25 ns Min tWR 15.00 ns Min tRAS 28.13 ns Min tRC 45.00 ns Min tRFC 260.00 ns Min tRTP 7.50 ns Min tRRD 6.56 ns Command Rate 1T XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage) XMP #1 6.0-7-6-17-27-1T @ 581 MHz (1.600 Volts) XMP #2 7.0-8-8-20-31-1T @ 678 MHz (1.600 Volts) XMP #3 8.0-9-8-22-35-1T @ 775 MHz (1.600 Volts) XMP #4 9.0-10-9-25-40-1T @ 872 MHz (1.600 Volts) XMP #5 10.0-11-10-28-44-1T @ 969 MHz (1.600 Volts) XMP #6 11.0-12-11-30-48-1T @ 1066 MHz (1.600 Volts) XMP #7 12.0-12-11-30-48-1T @ 1066 MHz (1.600 Volts) XMP #8 13.0-12-11-30-48-1T @ 1066 MHz (1.600 Volts) XMP #9 14.0-12-11-30-48-1T @ 1066 MHz (1.600 Volts) XMP #10 15.0-12-11-30-48-1T @ 1066 MHz (1.600 Volts) XMP profile XMP-1600 Specification PC3-12800 Voltage level 1.500 Volts Min Cycle time 1.250 ns (800 MHz) Max CL 9.0 Min tRP 11.25 ns Min tRCD 11.25 ns Min tWR 15.00 ns Min tRAS 33.75 ns Min tRC 45.00 ns Min tRFC 260.00 ns Min tRTP 7.50 ns Min tRRD 6.00 ns XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage) XMP #1 6.0-6-6-18-24-n.a @ 533 MHz (1.500 Volts) XMP #2 7.0-7-7-21-28-n.a @ 622 MHz (1.500 Volts) XMP #3 8.0-8-8-24-32-n.a @ 711 MHz (1.500 Volts) XMP #4 9.0-9-9-27-36-n.a @ 800 MHz (1.500 Volts) Is this sufficient? Let me know what else if not. Quote Link to comment Share on other sites More sharing options...
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