Ram channel b not working. May 9, 2023 · The RAM is on the motherboard QVL.
Ram channel b not working. SKILL Ripjaws V 2400Mhz RAM, running on a Windows 10 Pro machine. If the RAM was working (even in single channel) and now it isn't working after reapplying thermal compound then the CPU is not seating properly or pins are not making Oct 22, 2018 · If I put either ram stick in any of the slots on channel A (2 + 4) the computer refuses to boot with the long repeating beep code which means "ram is not installed correctly". 1 RAM: Team T-Force Delta RGB 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Intel XMP 2. Oct 9, 2022 · The Ballistix RAM sticks does not work in Dual Channel Mode (computer does not boot up when I have only these RAM sticks inserted). I have already tested it on two different motherboards and the B channel does not work, I think it may be a problem with the processor. 1 - not working Feb 11, 2021 · Pull the memory out slot 1. Nov 13, 2020 · As far as i know that motherboard supports dual channel mode with either 2 or 4 RAM modules. When I use 1-3 or 2-4 IT DOES BOOT. Hopefully this is all new enough for return or RMA. I have 6850k with 32gb 3600mhz gskill trident z. I get into bios with a ram in slot a1 or a2 or a1 + a2 (but thats not dual) Whats not working is: a1 + b1 (dual 1) a2 + b2 (dual 2) or all 4. Problem still persists. Troubleshooting Steps Taken So Far: - May 4, 2020 · It has a Memphis2-S motherboard that originally had BIOS revision NUT version A0-08. But when I try installing both pairs of 4gb for 16gb, my pc just keeps trying to start but shuts down and it continues to do this till I turn it off. No system post and DRAM QLED is lit. I replaced the CPU with a known working CPU. May 26, 2019 · It would be very possible for single sticks to work fine but dual channel to not work, or any number of possible glitches, with even one slightly bent pin. 30 RAM: Corsair Vengeance Lpx DDR4 2x8GB 2133 MHz Any help is very much appreciated For PC questions/assistance. I am having issues installing my 32 gb of ram as only the A1 and B1 slots work and recognise my RAM. Matched DIMM configuration in each channel. I replaced the whole motherboard, but that did not fix anything. " Nov 13, 2018 · If the failure does not follow the sticks when you move them, the pins in the memory slot may be fouled by corrosion/dust or the CPU may be faulty. The result is an signal stub where electrons are bouncing back and forth without driving into a proper load and that sort of thing causes signal integrity Nov 19, 2023 · The B channel does not work at all. Then, instead of testing a different CPU in your board, you'd need to test your CPU in a different board. However, you say that neither module works alone in the B channel. I got a hold of a 3rd cpu, but that did not fix anything. Even with default settings. but when go into slot 3 or 4 no video and quick debug led jumping from memory to cpu to memory again. Nov 14, 2020 · I noticed that my RAM mode isn't in dual channel even though I put it in slot 2 and 4 in the motherboard. My findings are: the system boots with one RAM stick in DIMMA2 OR both sticks in DIMMA1 and DIMMA2, the system attempts to boot both sticks in DIMMA2 and DIMMB2 if I set the DRAM Voltage to 1. the same dimm work flawlessly on slot 1 and slot 2 (even as gives me the warning of dual channel optimization on slot 1 but thats all). My motherboard is an ASUS PRIME H410I-PLUS/CSM which supports up to 2 x DIMM, Max. With the 2400g in, the B channel works just fine. I have this problem and I have to run a suboptimal memory configuration due to burning out memory channels after bad application of liquid metal. I built a new PC last week and while everything runs smoothly, I can only use one stick of RAM because the B1 and B2 slots don't read the second stick. Learn Electronics Repair #094This motherboard only works in single memory channel mode. Also check that there is no debris, dust, dirt etc on or among the pins and pads. 4, beginning on physically numbered Page 1-9 Dual channel? Double check the RAM slots being used. Dec 28, 2021 · The issue I am having is that one of my RAM is working in Slot 1 Channel A on it's own, the 2nd one is working in Slot 2 Channel A and Slot 2 Channel B on it's own but when pairing them in the slots that are confirmed working they do not post (also the EZ Debug LED's don't go past DRAM and go back and forth to CPU and DRAM). For some reason, even though I have both sticks installed and recognized in the system (I have 16GB of available RAM), it is marking them as Single Channel in CPU-Z. Whatever was recommended. I also tried everyone individually and they allwork on either a1 + a2 or individually on a1 or a2 Then I updated bios to 2. The following conditions do not need to be met: Same brand May 9, 2014 · Memory Supported memory is listed on Page vi. Would probably try to source some loaner DDR4 to try before moving on to the other aspects. I tested it with the new pair of 3600mhz RAM sticks so I'm kind of losing hope now. Amd asked me for the s/n (yes my cpu is having weird behaviours) and when i sent it from gmail the photo looked out of focus/comrpessed but when i download it it was perfect and the s/n was crystal clear but my cpu was already in my hand when amd sent the email saying it was Jun 5, 2020 · Hello! I am unable to run dual channel on my build even though my motherboard detects both slots and acknowledges that the ram sticks are properly seated in the specified slots. e. A2/B2 are the primaries and need these slots operational for dual channel and also less complications getting xmp to run Jun 6, 2020 · Mobo is a dual channel, 4 slot RAM config (A1/A2/B1/B2). Support setup a RMA on the board. May 3, 2021 · first checking if the memory (brand new sealed), was bad. I looked it up and both CPU and Motherboard are compatible with this RAM. Sep 27, 2020 · Hello all, I am having RAM issues. Also Reference Section 1. It works the same as Dual-Channel RAM and just boosts raw Megatransfers, it doesn’t actually boost the performance in Megahertz of RAM either. The computer would run all day no problems. The RAM could still work but it won't take advantage of double memory bandwidth. 4 GHz MB: ASRock A320M-HDV R4. While the same brand with the same config will probably work, it's not definite. For instance, if you are using two similar RAMs, then these should go inside the A1 and B1 slots or A2 and B2 slots . From what I can see in you board manual, for two RAM sticks to work in dual channel, you should populate both black RAM slots. Put the memory back in slot 1 BSOD. Bad RAM sticks - Will confirm with old Apr 20, 2023 · Btw the memory channel b worked until i reseated the cpu 3 days ago. No matter the ram stick, B1 and B2 did not work. It just uses 4 RAM sticks instead of 2 RAM sticks. Dec 7, 2021 · So I have a PC right now that doesn't work in dual channel at all and I just wanna make sure it is a motherboard problem (Don't want to keep sending stuff for returns) So my question is these should be the only things that can cause a PC to not work in dual channel right? (Most common to least common) 1. If I install into both slots it also works, bios detects 16gb ram but windows says only 8gb is usable. If there are no bent pins at all and nothing looks burnt or discolored on the motherboard or CPU electrical contacts, then I would RMA the motherboard or return it for replacement. The “Extremist” and “Monstrous” tiers are the only rows which have four memory Oct 23, 2019 · I recently upgraded to Ryzen 5 3600X and while I was installing my old 2133MHz RAM I noticed that the B channel didn't work so I had to put up with it running in single channel. I've tried all 4 slots separately with a single stick of ram and again the computer boots just fine with 1 stick in a channel B slot. Matched in symmetrical memory slots. 1. I put one of the dims on any slot. Jun 28, 2021 · The problem is when I install into first ram slot, it appears to be working but if I try the second slot the fans spin but there's no image. If you have a specific Keyboard/Mouse/AnyPart that is doing something strange, include the model number i. Verify that your RAM modules are supported. This can come from different sources. Jul 10, 2020 · Hello everyone, I'm currently working on my first build. I tried it with different sets of ram, and problem still persisted. If not, use your PC until all the RAM slots die eventually and then replace MoBo. Check that channel B memory slots have NOT been disabled in BIOS. The PC originally came with one stick of 4 GB RAM, installed into Channel A. There are PLENTY of things that can cause the memory to fail Memtest that are not explicitly "bad memory". After much trial and error, both of the sticks work standalone in either slot A1 or A2 Tried to put 1 stick at a time on Channel A (no boot) Tried to put 1 stick at a time on Channel B - PC boots Tried the other RAM stick on both slots on Channel B - PC boots Tried to reseat CPU - brushed - then tried to use dual channel RAM but the PC still won't boot with to sticks Now, I'm left with a single 8GB of RAM. Put the memory in just like you have it the computer again would run all day. Let's have a look at the common causes of this fault and see if we c Jan 11, 2024 · Now, that's just a theory. 0 P2. Today I upgraded it to version 10 (dated 1/5/2016), which appears to be the latest version. Both ram is detected on the motherboard but dual channel is not working. testing each RAM separately in 2nd slot (NO ERRORS) Dec 7, 2022 · Not doing so may result in the issue of the memory stick not being detected by the system or running the system in a single memory channel, thus causing the mentioned problem. Where as if I move the ram currently in the B1 to the A2 slot the computer doesn’t POST and has the DRAM led in the mobo go orange for 5 seconds then the CPU LES flashes red and continues. RAM B Channels not working Troubleshooting Hey guys, Recently bought a Ryzen 5 3600, B450 PRO AM4 and 16 gb ddr4 3200 RAM. I had a bit of trouble putting the CPU Jan 22, 2024 · The memory channels are independent, if a couple pins for memory channel A are bent, channel B will still work perfectly. The sequence of LEDs is like so: shorter CPU, longer RAM, shorter CPU, longer RAM, after few cycles only RAM LED is on and nothing else happens. But if the stick is in a channel A Oct 17, 2013 · Since you can get your PC to work, when using 2nd RAM channel, it's up to you, if you want to RMA your MoBo, if you have any warranty left on it. Jun 22, 2023 · After a bit of testing I've found that it won't boot if I have a DIMM in the B channel. When you put two sticks in A1 and A2 (not dual channel), the bios boots up with a message to configure in dual channel (DDR4_B2 and DDR4_A2), and this doesn't work. Jan 31, 2022 · PC originally booted fine with 2x8GB RAM sticks using this setup: CPU: AMD Ryzen 3 2200g Motherboard: Gigabyte B450 Aorus M Rev. AS I was working with support I had order another board the same one I was working with. My build: CPU: AMD Ryzen 5 2600 Six-Core Processor 3. If suddenly both memory channels work again, it would likely be a contact problem between CPU and board, and the CPU would probably not be defective. Anyways my RAM works just fine if I put it on slots 1-3 or 2-4 (single channel), but whenever I try to use 1-2 or 3-4 (dual channel according to my MOBO), my computer won't boot. And again, it's not an exact same RAM stick, it's exact same branding. I will get no display when I insert the second ram stick (in any combo). The four memory sockets are divided into two channels and each channel has two memory sockets as following: Channel A: DDR4_2, DDR4_4 Channel B: DDR4_1, DDR4_3 Dual Channel Memory Configurations Table Nov 4, 2019 · With two different modules, there is no guarantee that it will work, and if it works, it might not work too well. Channel A is not posting. I can have one or both sticks in the A channel and it boots without issue, but any combination that includes the B channel won't post. I've tried 2 dimms and I'm able to post both in B, and D I believe. You would check for bent cpu pins. Apr 2, 2021 · Yes it does, but for some reason it doesn't detect all RAM slots -could be some bent pin on CPU, bad contact on RAM slot (on board backside) or bent pin inside RAM slot. Jan 20, 2021 · I have a Ryzen 5 3600 with 2 x 16GB 3200Mhz kit and the dual channel does not work because channel B (B1 and B2) does not work, only channel A of Ram. I brushed it off as it just being a Ryzen thing and ordered a set of 2x8GB Corsair CMK16GX4M2B3200C16 (3200MHz 16-18-18-18-36 1. Dec 16, 2014 · When only using two RAM modules in the P8Z77-M PRO you are suppose to place the two modules in DIMM_A2 and DIMM_B2. Channels B,C,D all are functional. This repeats if I have a RAM stick in slots 1 or 2 whereas 3 and 4 both work just fine. Nov 9, 2018 · 2x8GB G. bad RAM Slot buty they work one at a time so should be OK Ram slots one and three work together but not in Dual Mode. If the RAM doesn't work, would go next best (cheap) route and triple check the socket for damage or ram channel B not working Tech Support Yesterday i built my first pc, it didn’t want to boot up and i thought i had dead gpu, found out ram didn’t work cuz they were mounted in dual channel, (and cpu was’t all the way in), Nov 13, 2020 · Putting the following build together: 5600x Asus rog strix b550-f wifi 16gb (2x8gb) 3600mhz cl16 RAM dual channel kit Of the 4 DIMM slots, B1 and B2 are not working. Configurations that do not match the above conditions revert to single-channel mode. I've inserted them into corrects slots (2nd and 4th DIMM slot counting from CPU). I've tried RAM from my main computer in this motherboard which works the same as above (posts in Channel A but not when in Channel B). RAM 2x16G installed in slot A2/B2 (A1/B1 same situation) Recently my PC stopped booting - hanged/rebooted during POST diagnostics. Dec 13, 2022 · Swapped sticks in channel A and B -> the 4 sticks are still recognized, but channel A still shows up empty; BIOS reports 12GB RAM removed the stick that was in channel B (the one originally from channel A, and presumably the faulty one) -> the 4 sticks are still recognized, channel A still shows up empty (has RAM stick in it), channel B shows Apr 10, 2021 · sudo dmidecode --type memory should show you if your hardware supports dual channel (look at Locator / Bank Locator for dual channel motherboards it will say something like ChannelA-DIMM0 ChannelB-DIMM1 etc. 35v) which arrived today. As I understand your post the RAM modules may not be correctly installed. The reason for this is because those two slots are located at the ends of each channel of the memory bus and provides proper termination of the memory bus to prevent digital signal reflections from possibly causing memory errors from signal interference. Jan 10, 2021 · So then, no, it's not a matched set, and as a result, it can be fiddly in different motherboards or configurations. I tri If I remove the ram from the B1 and B2 slots I can boot up fine. It could be an issue with the RAM itself, although less likely. May 26, 2020 · The motherboard's EZ Debug LED reaches the RAM light, waits a second and goes back to CPU and then loops back to RAM. I tried multiple combinations of RAM and mobo slot and eventually found that inserting one of the RAM in slot B allowed it to POST and boot up Windows. I have already tested it on two different motherboards and the B channel does not work, I think it may be a problem with the processor. boju. If I have 1 or 2 ram sticks in channel B and none in A the computer boots just fine. Examples: 1 GB, 2 GB, 4 GB. When I put RAM into slots A2/B2 (as the mobo manual said to for dual channel) I get a 'memory PMU training error at socket 0 channel 0 Sep 1, 2020 · #1. I have a Ryzen 5 3600 with 2 x 16GB 3200Mhz kit and the dual channel does not work because channel B (B1 and B2) does not work, only channel A of Ram. Sep 9, 2019 · On Intel’s side, every LGA 1151 motherboard has two memory channels, and every LGA 2066 motherboard has four memory channels. Be sure to check the QVL as recommended on the page. I read somewhere that a bent pin on the cpu socket might be the Mar 7, 2022 · On my most recent build I'm struggling to get my dual channel RAM working and have no idea on what next steps to take. 45V but ultimately "memory overclocking fail," and the system never boots in any other RAM configuration. Mar 14, 2023 · The reason for this is that A2 is likely the end of the channel A chain and therefore by fitting in slots A1 first you are ending up with a memory stick with a long length of wire after it. I'm assuming the channel b slots are broken cuz when I put ram in tthem my pc refuses to start. The pins in the socket, a lot of them go directly to the contacts in the RAM slots, all the contacts there correspond to an individual pin in the CPU socket. I have tried to update bios, reset bios, removed cpu, inspected pins, loosen cpu fan, turned on xmp before and after cmos reset, boot system up with only 24 pin connected and ram. The configuration that as working with 2 sticks was when you put then in the most closest channels (gray DDR4_B1 most close to CPU and silver DDR4_B2 second most close) May 3, 2022 · After a bit of fault finding i concluded the RAM was the issue. May 16, 2022 · This could be a result of CPU or mobo. 0 Desktop Memory Model TF3D416G3200HC16CDC01 Today, I switched the R Enabling Dual Channel memory mode will double the original memory bandwidth. So this means the whole memory channel B is out, and this could be due to a number of things, even a partly defective IMC inside the CPU. I thought the memory channels were bad. I agree it's a good practice to follow once the memory is actually working in the slots it belongs in, but otherwise, it's kind of pointless. So I assume its just a bad board, but here's the weird part. This means that, on our main chart, every configuration up to and including the “Enthusiast” tier has two memory channels. If I switch my ram sticks around so the B channel ram is installed in the A channel slots it boots fine so I am pretty sure it's a motherboard ram slot issue and not an issue with the RAM sticks. Nov 10, 2020 · It would seem like some of your memory channels are not working. Oct 17, 2012 · I'm trying to put together a PC and for some reason the first channel (channel A) stops the PC from booting if any ram stick is present there. I tightened the CPU fan screws until they were fully in, but not overtightened. This has nothing to do with RAM compatibility. Jan 14, 2022 · Solution. After assembling everything together, it wouldn't POST and had an orange Q-LED lit up, indicating a problem with the RAM even though both RAM were inserted and had glowing RGB. Jan 2, 2024 · What about Quad-Channel RAM? Quad-Channel RAM is…well, pretty much exactly what it sounds like. But that does not show if the ram is working at a particular bandwidth. The general issue is as follows All slots are fine on their own Slot 1 and 3 work together Slot 2 and 4 do not work together Slot 1, 3 and 4 work together Slot 1, 2 and 3 do not work together All slots do not work together (Worded this part badly so edited it to just say the Slot Nov 3, 2017 · Intel System not working in DUAL channel suggest BAD ram, but they work one at a time so should be OK. Jan 10, 2016 · Ram channel b in my pc isnt working. After some tests and switching the memory DIMM cards around, I noticed that they were working correctly (all 4 of them), BUT ONLY ON THE B CHANNEL (B1 and B2). Yeah, 95% of the time "dual channel RAM not working" is going to be "used the wrong slots - RTFM," or "used RAM not rated for your motherboard - RTFM," or "combined RAM of different sizes, different brands, or different speeds - read the RAM, RTFM. May 9, 2023 · The RAM is on the motherboard QVL. Make sure there are no damaged or bent pins. Feb 25, 2020 · Check this first! It seems there are problems when trying to use B channel memory slots. What have I already checked? I've just made a lot of memory tests using memtest86. RAM is binned, there's no factory pumping out X RAM at Y speed. I've tried switching dimms. Memtest cannot boot (hangs/reboots on SPD reading) When I put memory into slots A1/A2 everything is working (of course in single channel mode), Memtest passes with 0 errors. I've removed the CPU fan, reseated the CPU, reapplied paste and reinstalled fan. Is there any way to fix this because previously the dual channel was working fine (before the windows install and clean)? Any help would be appreciated, thank you. Jan 14, 2022. Nov 17, 2022 · After lots of boot issues and A/B testing I found that 2 RAM slots A1 and A2 (the first 2 from the left side) are not working and the PC will not boot if a RAM stick is plugged into any of these slots. When asking a question or stating a problem, please add as much detail as possible. Aug 2, 2021 · To achieve dual-channel mode, the following conditions must be met: Same memory size. 64GB, DDR4 2666/2400/2133 MHz Non-ECC, Un-buffered Memory (From their website). . My mobo even warned me pre-boot that I wasn't using a dual-channel slot configuration. I don't see any settings in the BIOS to enable "Dual-Channel" mode for my RAM so I'm not sure how to fix this. Jan 6, 2020 · That's not accurate really Calvin. But you could try to re-seat your CPU. Remove the CPU and check very carefully the CPU and its socket. Any suggestions? Motherboard= Gigabyte GA-Z97X-SLI RAM= 2x4gb Kingston HyperX Sep 13, 2018 · I had my old ram in same slots as I put my new ram and the new ram worked. yskoaz fmjth hdb crtzo kui emmg aqtujc umph xoiw hmgahd