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Ram help

cooper22768
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I made a small cpu upgrade and got a really good motherboard but after a bench mark it said my ram which is corsair vengeance 2 16 gb sticks are running way bellow average for its average is there anything like any settings in bios or anything at all that could limit my ram 

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maybe xmp settings arent applied?

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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What are the specific CPU (old and new), what motherboard, and what is the exact memory speed spec? 

 

More than likely XMP just isn't enabled, but there are some other things that it would be useful to know this sort of thing. 

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Make sure your RAM sticks are inserted into the slot furthest from the CPU, then the next one after a gap. It should look like this, with X being where the RAM should be placed:

(CPU) [0][X][0][X]

 

In other words, make sure that your RAM is installed in slots A2 and B2. For some reason I couldn't get XMP to stick with them being in A1 and B1 (1 and 3, with 1 being closest to the CPU), using the same RAM kit you are. Make sure to set your XMP setting and not just the bit that says "memory frequency" or something like that. On ASUS or ROG boards, it may be referred to as DOCP. This needs to be enabled in the BIOS menu, and can generally be found near where the memory frequency is listed in the BIOS.

 

Hope this helps!

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On 8/2/2023 at 3:18 PM, CyprusMiraque said:

Make sure your RAM sticks are inserted into the slot furthest from the CPU, then the next one after a gap. It should look like this, with X being where the RAM should be placed:

(CPU) [0][X][0][X]

 

In other words, make sure that your RAM is installed in slots A2 and B2. For some reason I couldn't get XMP to stick with them being in A1 and B1 (1 and 3, with 1 being closest to the CPU), using the same RAM kit you are. Make sure to set your XMP setting and not just the bit that says "memory frequency" or something like that. On ASUS or ROG boards, it may be referred to as DOCP. This needs to be enabled in the BIOS menu, and can generally be found near where the memory frequency is listed in the BIOS.

 

Hope this helps!

Always check the manual. While A2 B2 is normal for most 4 slot boards, sometimes its the other way around. Sometimes it straight up doesn't matter due to the topology design.

 

Also what @RONOTHAN## forgot to ask would be this: Where do you get the numbers? In CPU-Z, Speccy, and some other identification apps, they use effective bandwidth which are usually half the true speed. So something like 1600MT/s on a 3200MHz kit isnt a bug, its just stating its true speed. Thats the D in DDR, Double Data Rate. 1600*2=3200.

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