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Very specific question about ram mixing

Go to solution Solved by Jurrunio,

it doesnt matter, just make sure you clear CMOS after that so the board trains the memory (or else it would try the old settings which could be unstable)

I have quite a specific situation I want to ask about.

My motherboard is gigabyte b250 hd3p. The RAM slots channels are (when looking from left to right) AABB, or DDR4-4, DDR4-2, DDR4-3, DDR4-1, with 4 AND 2 BEING CHANNEL A, and 3 AND 1 BEING CHANNEL B.

I currently have 2x4gb sticks of Kingston HyperX Fury RAM running in dual channel mode (put in the DDR4-2 and DDR4-1 slots).

I found a really good deal for another 2x4gb sticks with the exact same model number, timings, latency, and exact same revision number. I am aware that this is often a gamble, but I want to try.

My question is: should I put the NEW ram into the remaining slots available (slots DDR4-4 and DDR4-3)? - in this case in channel A slots there would be 1 stick of the NEW ram I bought and 1 stick of the OLD ram I currently have, and the same would also apply to channel B.

OR should I make the configuration in a way that the OLD ram I currently have populates only channel A slots, and the NEW ram I bought populates only channel B slots?

OR does it not matter?

I hope I am being clear, if something is confusing I'll try to clear it up.

Thanks in advance!

Gigabyte GA B250 - HD3P

Intel i5 7400 3.00 GHz

Zotac Gtx 1050 ti 4 gb OC

8 gb Kingston Fury HyperX DDR4

1 TB Western Digital Purple HDD

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I have two same kits of 2x16GB and they work fine in any combination.

But its generally recommended to have the first kit in slot 2 and 4 (so as you have right now) and the other kit in the remaining slots. Shouldn't be an issue either way though.

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have sticks from the same kit in 1 slot apart

meaning, run one stick from each kit in different channel

 

mixing RAM might not always work, though

and you can clear CMOS to see if it'll help

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it doesnt matter, just make sure you clear CMOS after that so the board trains the memory (or else it would try the old settings which could be unstable)

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: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally 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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4 minutes ago, Jurrunio said:

it doesnt matter, just make sure you clear CMOS after that so the board trains the memory (or else it would try the old settings which could be unstable)

Do I need to clear cmos by removing the battery/shorting the 2 cmos pins or can I simply load optimized defaults in bios?

Gigabyte GA B250 - HD3P

Intel i5 7400 3.00 GHz

Zotac Gtx 1050 ti 4 gb OC

8 gb Kingston Fury HyperX DDR4

1 TB Western Digital Purple HDD

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7 minutes ago, Jaga848 said:

Do I need to clear cmos by removing the battery/shorting the 2 cmos pins or can I simply load optimized defaults in bios?

Need to remove battery or short pins, loading defaults doesn't work.

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: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally 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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7 minutes ago, Jurrunio said:

Need to remove battery or short pins, loading defaults doesn't work.

Thanks, just one more question:

 

Since I want to test the two NEW sticks before I combine them with the ones I currently have, do I need to clear CMOS before turning on the PC with only the NEW ram sticks plugged in, and then again after combining all 4 of them, or do I need to clear CMOS only before using all 4 sticks combined, and not when testing the two NEW sticks?

Gigabyte GA B250 - HD3P

Intel i5 7400 3.00 GHz

Zotac Gtx 1050 ti 4 gb OC

8 gb Kingston Fury HyperX DDR4

1 TB Western Digital Purple HDD

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1 minute ago, Jaga848 said:

Since I want to test the two NEW sticks before I combine them with the ones I currently have, do I need to clear CMOS before turning on the PC with only the NEW ram sticks plugged in, and then again after combining all 4 of them, or do I need to clear CMOS only before using all 4 sticks combined, and not when testing the two NEW sticks?

every time you change the sticks used, you should clear CMOS.

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: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally 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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