DIMM_A2 DIMM_B1 DIMM_B2 DIMM_A1 DIMM_A2 OR Step 1 Step 2 Step 7 Step 4 Step 5 Step 7 Step 6 Step 3 Quick Start Guide Кратко упътване за бърз старт Stručná příručka Quick Start-vejledning Snelstartgids Lühijuhend Guide de démarrage rapide Pikakäynnistysopas Schnellstarthilfe Οδηγός γρήγορης. Cancel Post. 184,590. Method 4. Share. After much trial and error, both of the sticks work standalone in either slot A1 or A2. When change DIMM slots to DIMM B2 and D2 the PC starts and everything looks fine. ) 4 x DIMM, Max. B1. • Visit the ASUS. 2 SSD screw package Application DVD 1 x Support DVD Documentation 1 x User manual If any of the above items is damaged or missing, contact your retailer. The memory sockets have direct connections to the CPU. SKILL Ripjaws V Series (Intel XMP) DDR4 RAM 32GB (2x16GB) 3200MT/s CL16-18-18-38 1. Check with the vendor to get the correct memory modules. Free shipping. Click [Manual & Document], in [Manual], select the corresponding user manual, and click [Download]. Chapter 1: Product introduction 1-10. In the highest density DIMMs with x4 DRAMs, this allows each group of 5 DRAMs (single rank,. It looks like the issue is with DIMM A2. Firs start - message: "Error: Memory initialization warning detected. As you already replaced DIMM with another slot and still see the error, you can check by not installing DIMM on A2 and B2 and see whether that make any difference. with both 16 GB memory modules installed (2x16GB - 32 GB total) set to. Already tried the following steps: Both RAM sticks seperatly in slots A1 & A2 - working Recommended setting A2 & B2 - not working Single RAM in B1 or B2 - not working. Major . try losing the cooler see if anything changes. 40GHz, 2400 MHz) and 64. DIMM_B1: 4GB 2Rx8 RDIMM; DIMM_B2: 4GB 2Rx8 RDIMM; DIMM_B3: (empty) DIMM_B4: (empty) We want to upgrade the server to have a total of 32GB, so I (possibly incorrectly) purchased two 8GB 1Rx4 RDIMM's. 2. Channel 1 - slot 2. Ensure that each memory channel has at least one memory DIMM inserted, and that the memory size for each is at least 4GB. 2=DIMM_A2. 5) Last option is to try alternative memory kits until a compatible combination is found. Traditional-Eye-8783. If you have four RAM sticks, all four available slots on the motherboard can be used for insertion. • Press the reset button on the system chassis. 3=DIMM_B1. [email protected] x4 & SATA) 6 3 HDMI 2. 0. then i put only one in a dimm and checked every dimm socket with only one modul. 16gb (2x8gb) 3600mhz cl16 RAM dual channel kit. 7. Hopefully this is all new enough for return or RMA. In an attememp to increase total memory, i've 2x addition 16GB DDR3 UDIMM QuadRank. 06. Open the downloaded user manual and search for. Okay thanks, thats better for cpu cooler ram clearance then. Q-Code showed 35 which according to manual is "CPU Post-Memory Initialization". - If both A2 and B2 DIMM slots are populated the default memory profile works fine (2133Mhz); if I enable XMP or XMP2. if i put dimm in socket a1 and a2 the system is starting. 1) Get the BIOS update. For each channel, there are two sockets, DIMM_A1, DIMM_A2 for channel A, and DIMM_B1, and DIMM_B2 for channel B. Recommended memory configurations DIMM_A1 DIMM_A2 DIMM_A2 DIMM_A2 DIMM_B1 DIMM_B2 DIMM_B2 PRIME Z790-A WIFI. I want to install a matched set of 2x48GB DDR5 RAM sticks (Corsair or Gskill) for 96GB total DDR5 RAM on a new build Asus Maximus Hero Z790 MB with an Intel-i9 13900K CPU. • For CPU1 configuraton, install DIMMs from the orange slots and in the order as follows: DIMM_A2 -> DIMM_C2 -> DIMM_B2 -> DIMM_D2. 1 Rank x4 Planar with or without Address and Command Parity. 40GHz) Thanks in Advance. It appears that in no instance can a stick be in DIMM B1 nor DIMM B2. Uncorrectable memory errors may also be reported on the affected slot/DIMM. Once that is done, swap B5 with A5. Feb 20, 2016. Top. 2, USB 3. A. DIMM_C2 4GB Installed80Operational . I have reset the CMOS. While trying to solve the problem, I updated to the latest bios 0703 (issues present since at least 0502), ME firmware, did CPU and RAM re-install countless times. See illustration below: Based on your current configuration, you will need four of 16GB RDIMM modules (4X16GB) and not one in order to have a. Reseat memory. NOTE: 16 GB DIMMs must be installed in slots numbered A1, A2, A3, A4, B1, B2, B3, and B4 and 8 GB DIMMs must be installed in slots A5, A6, A7, and A8. 4) Once M-Flash (the updater) is loaded, it will show a. Open the downloaded user manual and search for [Recommended memory configuration] as below. On the back of the server cover you have a schematic which explains how to populate memory slots. Product Model: Form Factor: Chipset: Memory: HDDDDR4 DIMM_B1 (64bit, 288-pin module) DDR4 DIMM_B2* (64bit, 288-pin module) DDR4 DIMM_A1 (64bit, 288-pin module) DDR4 DIMM_A2* (64bit, 288-pin module) DIGI+ VRM AIO_PUMP CHA_FAN3 CHA_FAN2 LED1_CON CHA_FAN1 CPU_FAN CPU_OPT BOOT VGA CPU DRAM M. You can also use the coloring scheme of the DIMM slots: Notice A1 and B1 are the same color? By installing the RAMs there you will enable the dual-channel. Edit: A motherboard usually has DIMM A1, DIMM A2, DIMM B1, DIMM B2. I rebooted and reset the memory speed and. . If you actually read the manual for the Maximus XI series boards, it clearly states, that when using 2 memory modules they should be installed in DIMM A2 and B2 (for dual channel). #11. I bought 8 GB (2x4) of GSKILL RIPJAW X DDR3 2133MHZ and wanted to put in dual channel but i cant because the yellow slots (DIMM_A2 and DIMM_B2) dont work. 2. Also, regarding A1/B1 A2/B2 slots, the slots farthest away from the CPU socket usually works better, as they terminate the memory channel. A lot of the time, the fourth and second slots (DIMM_A2, and DIMM_B2) are what the manufacturer will recommend, in order to give you access to the wonders of dual-channel memory. DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2. It is a kit with two 16MB slot. The memory sockets have direct connections to the CPU. Every component is brandnew. 00 total, including shipping. 35V Desktop Computer Memory UDIMM - Black (F4-3200C16D-32GVK)Both sticks work when plugged into DIMM A2 but when I plug the second into DIMM B2, the computer will fail to POST. 8525 . (I have built several PC's before, with no issue, so I am somewhat experienced) The motherboard is TUF B560M- Plus. dimm_a2, dimm_b2 + dimm_b1 It simply looked like I had a single failing RAM Stick running the ASUS motherboard + Ryzen 2700x + DRAM at default BIOS settings. PLEASE HELP. . Closed, Resolved Public Request. 1. Price is for each stick of RAM - I have 3 available. Dual processors (d)So at first I thought the stick of ram that I had in B2 was doa. 2 Gen 2x2. HyperX Fury RGB DDR4 3200 MHz 16GB. Check with the vendor to get the correct memory modules. 2 slot on the bottom probably will be best, sometimes the upper ones deactivate SATA lanes. wmnet. This way you can reseat the DIMM and test the slot with another stick that isn't having issues. Did you read it and made everything according to the manual?11. 0, four M. Specifies the total width, in bits, of the memory, including any check or error-correction bits. Hello. 0. Both stick work together in A1+A2 but run in single channel mode. SKILL Flare X DDR4 3200 C14 2x8GB near the. 0 Gb/s x 4, USB3. SKILL Flare X DDR4 3200 C14 2x8GB near the top of the comparison list. I was able to solve this by putting a regular SATA SSD and connecting it to the. Go to the official ASUS website, click the [Search button], and enter the [Desktop PC Name] you need to query in the [Search Box], such as: D900SD. I've just built a new PC with an Asus Z370-A Prime motherboard and I'm unable to get the RAM to work in the first two slots (DIMM_B1 and DIMM_B2). Hardware and Memory Requirements. Uncorrectable memory errors may also be reported on the affected slot/DIMM. (or two sets of three in triple channel for the X58 board). DIMM_B2 failed self test (BIST). DIMM_C2 failed self test (BIST). 8523 . cpu1_dimm_c1 32768mb ddr4 2666mh samsung 23f848ef sh5724g4unc26p2-sc. I requested if Corsair could simply replace 1 of the sticks by sending me a replacement stick as close as possible to the RAM used in the kit. Page 18 (D/C) from the same vendor. RELATED: Which Slot To Put RAM In – A Guide To Optimal RAM Placement. 2) Increase DRAM Voltage in BIOS to no more than 1. I recently installed a new CPU cooler (Noctua NH-D9L). According to manual led indicator means there's an problem with DRAM. 假如我没有猜错的话，应该是16G*8条内存，因为识别不了A8的16G，所以还剩余112G。. its only dimm 3 and 4 which are not working anymore. Dual Channel DDR5：4*DIMMs with XMP 3. DDR3 Training Failure - FPT - Write Leveling DIMM B2 Memory Training Failure detected. This method is used to find damaged ramslots. I am almost wondering if the case is shorting the motherboard somehow or SOMETHING. The result is that I only have single channel enabled. return the Extreme, Â*do so. The latest-generation Intel ® Core ™ i7 processor and 5G connectivity combine to deliver the fast and responsive performance you need, while a dual SO-DIMM upgradable. Replace DIMM_C1. Support Intel ® Core™ 14th/ 13th/ 12th Gen Processors, Intel ® Pentium ® Gold and Celeron ® Processors for LGA 1700 socket. like if you had a bunch of harddrives. My company use a Dell Poweredge 730 rack server. 99. a2 b2 first then a1 b1 if 4 modules are used. Setting up CIMC for 5520 and 8540 Wireless Controller. Now i am getting processor 1 ierr. I've just done a fresh windows install all seems fine so far but yesterday It lasted for like 8 hours when I was playing games, then when I got off and went on youtube, it started happening again, I'm confused how it says on my motherboard DIMM B1 DIMM B2 DIMM A1 DIMM A2, but when typing in cmd " wmic memorychip get devicelocator, speed " it tells. SKILL Sniper X 8GB 3200MHz CL16-18-18-38 (Samsung) The XMP profile worked out of box!Swapping DIMM A1 (marked in blue) with DIMM B1 (marked in red) puts the DIMM on an altogether different memory controller (CPU). Major. DIMM is used in desktop machines, laptops, printers, servers, and high-end workstations. Page 19: Chapter 2: Bios InformationQuestion in title. Keep trying different combos to narrow down the problem slot. 所以你把3支全部插上去就是了. Replace DIMM_C2. Major. Reply reply jamvanderloeff • Note A B vs 1 2 numbering differs by manufacturer, easiest way is just count em physically, for modern boards the two closest to the CPU are one channel, then the further pair are the other channel. (You could mess up and use something as A1/A2 above, loosing dual channel completely, but I see no good reason why A1/B1 and A2/B2 would not offer this. Table 2 DIMM Rules for C220, C240, B200 M6 Servers DIMM Parameter DIMMs in the Same Channel DIMM in the Same Slot1 Notes: 1. c. Login to Download center and input the Motherboard model name in the search bar. When ram is seated in slot 2 it won't boot at all. 2. This is an excellent result which ranks the G. DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2. 32GB (two sticks of 16) trident z rgb DDR4 and. We currently have one CPU (Intel (R) Xeon (R) CPU E5-2640 v4 @ 2. Installing a memory DIMM. Press the buckle of the memory slot, refer to below picture. The software reports the populated DIMM slots are the furthest two to the right, DIMM_A1 and DIMM_A2. Vendor: Cisco Systems, Inc. Page 18 Installing a DIMM To remove a DIMM 1‑10 Chapter 1: Product introduction. Why I'm asking: my CPU cooler (Thermalright Peerless Assassin 120 SE) is huge and the plastic sides of the literally-strapped-on fan is occluded by both sticks of RAM, but if I shift them over it will all fit nicely, lol. DIMM_A2 failed self test (BIST). cpu1_dimm_c1 32768mb ddr4 2666mh samsung 23f848ef sh5724g4unc26p2-sc. 16gb (2x8gb) 3600mhz cl16 RAM dual channel kit. PowerFlex Software, Ready Node Series. 1. The yellow indicator led lights up on “dram”, which is the first of the four indicator led’s. Trying to use slot. Compare. Just finished my ryzen build with that mobo. Was: $8. M. Table 2. If you enable DIMM blacklisting, Cisco UCS Manager monitors the memory test execution messages and blacklists any DIMMs that encounter memory errors in the DIMM SPD data. I want to note that on the tuf gaming x570-plus. - Updated the bios to the latest version. Click OK when done. After a few minutes of reading the manual and troubleshooting I was able to get it to boot by removing the RAM from B1 & B2 slots and only using the other 2 or just one of them. Click Manual & Document. It should work in A1/B1, maybe A2/B2 but not in dual channel. 02/day) Jan 3, 2023. Page 19 Installing a DIMM To remove a DIMM Chapter 1: Product introduction 1-10. I look online and see people saying both things so im confused and i cant find where its located in the manual. 3D printable modules for ultimate customizability. but the server didn't like this. Las memorias RAM pueden ser de dos tipos dependiendo de su tamaño, y estos tipos son la memoria RAM DIMM y la SODIMM. For Cisco B. Memory configurations—two processors. 2. 1. Removing one of the video cards nets the same result. 1、. Jul 2004. scope server x/y -> show memory detail. 内存条SPD可以说是内存条生产技术里最核心的技术之一。. 另外主機板有分dimm a1(籃1)/dimm a2(黑2) 及 dimm b1(籃3)/dimm b2(黑4),要跑雙通道是否要將2g分別插在a1及b1?感恩 2010-12-30 10:06 #1. 中填充四列 rdimm 时，具有绿色释放拉杆的通道中第三个 dimm 插槽无法填充。 • 无论列数是多少，最多可以安装三个 lrdimm。 • 仅在安装处理器时填充 dimm 插槽。对于单处理器系统，插槽 a1 至 a12 可用。对于双处理器系统，插槽 a1 至 a12 和插槽 b1 至. In this case, upgrading the system to 16 GB of memory would mean replacing the two 4 GB. 8524 . . But when I rebooted to install the OS again, the same thing. Critical Mem ECC Warning: Memory Sensor, transition to. Then delete those three commented out lines in /etc/fstab. 2 2280 installed in the M. Can’t figure out which DIMM slots to use. Correctable errors mean you are using ECC RAM, the server detected that one of the bits in the memory it tried to read was wrong, and it was able to use ECC to figure out what it was supposed to be. 98. 3) Enter the BIOS by pressing DEL during boot, go to "M-FLASH" in the BIOS. Version. My computer would POST with my ram in slot DIMM_A1, DIMM_A2, or both. Replace DIMM_A1. 6. Click Manual & Document. To achieve dual-channel pairing, it is necessary to have either two or four identical RAM sticks. 请问在log中能看到 Memory 容量和频率. . Replace DIMM_B2. So my B2 ram slot fix worked for a while, but now the computer is no good. To double check this slot, I tried two more tests with the seemingly proven good ram 1 and 2 in B2 and could not get past the DRAM LED in the EZ debug. R430 have 8 DIMM slots for CPU1 and 4 DIMM slots for CPU2. 8521 . Reseat memory. Method 4. if the new cooler on to tight it can crush the lid into the cpu chip and cause errors. codfw. That was about a week ago, no word since. Since it only tripped once for me, I cleared the memory errors using OMSA (dcicfg32. A1/A2 share the same channel. Example of Errors seen during Boot: UEFI0339: The Dual Inline Memory Module (DIMM) in the memory slot <XX> is disabled because of initialization errors caused by. When I first installed it, my computer wouldn't POST as the motherboard couldn't detect the M. B1/B2 share the same channel. Touch the static-protective package that contains. Step 5 Step 6 Step 7 Step 8 Step 9. In Manual & Document page, select the manual in local language , and then click [DOWNLOAD] 3. cpu1_dimm_b2 32768mb ddr4 2666mh micron 173a4913 36asf4g72pz-2g6d1. B2 - Fully Working (mean with XMP too) and all ram installation combo's which include's {A1/B1} {A2/B2} {A1,A2,B1,B2} not working. What I’ve tried: 1 st I cycled through the different input selections on the monitor, 2 nd I tried and HDMI cable and tried plugging it into different spots, 3 rd removed my graphics card, 4 th moved RAM from DIMM’s A2/B2 to A1/B1, 5 th I tried each of the RAM by itself, 6 th removed SSD and HDD, I also cycled power, reseated RAM. Use the BIOS Setup program to. Das Angebot beinhaltet zwei RAM-Module zu je 2 GB pro Modul, welche als 1 Einheit verkauft werden. Running iCue Software Version : 4. DIMM_B1 failed self test (BIST). Legacy memory troubleshooting steps incorporate moving failing DIMMs to a different slot to confirm whether or not the errors follow the DIMM or remain with the DIMM slot. But the pc dosent recognize the ram module at dimm_A2 ( A1+A2 ) . Skill DIMM - A2 Corsair DIMM - B1 G. Major . Press the buckle of the memory slot, refer to below picture. c. 0. In Manual & Document page, select the manual in local language , and then click [DOWNLOAD] 3. In this video, I'll show you how to diagnose and fix memory failure. Gebraucht und funktionsfähig ausgebaut. $5 off. 4. But—and I. exe) and so far so good. DIMM errors are usually caused by a faulty DIMM, or sometimes by a bad Motherboard; Notes. I ran a hardware diagnostic test on my system, and got these error messages: System firmware: memory sensor (Mem ECC. 2% lower than the peak scores attained by the group leaders. So, I believe what I have is a bad DIMM that just decided to die and the memory controller on the CPU is shot, too, since the motherboard seems to be just fine with the memory using the old chip. Now total memory is 24GB with two CPU. To setup the CIMC interface follow the given steps: Step 1 Connect the CIMC cable to the 10/100/1000 port in base T. hw troubleshooting: DIMM_B2 for mc2040. DDR3 240Pin Laptop PC SO-DIMM to 204 Pin Desktop Memory Adapter Converter Card. 0) [email protected]. A_1 and B_1. Mainboard: Asus Tuf gaming B550-Plus (Wi-fi) Cpu: Amd Ryzen 5 3600 Ram: Trident Z RGB 3200MHz 2x 8Gb GPU: Asus Gtx 980. None; Additional Information. Does not complete POST, as far as I can tell. Then reboot the system and verify operation. also see that the cpu still locked in al lthe way. It appears that the only viable setup is by using either 1 or both RAM sticks in the DIMM slots. El término DIMM seguro que lo has escuchado en más de una ocasión, o lo habrás leído en alguna de las características de placas base, memorias RAM, etc. Confusion exists because motherboard manuals are misleading due to unexact. 2. Replace DIMM_B1. Your motherboard clearly supports 4 dual rank DDR4 modules. A1 and B1 f. Re: WLC 5520 Standby system status amber light blinking. Open the downloaded user manual and search for [Recommended memory configuration] as below. 10. . It connects to the computer motherboard via pins. 128GB ATX 7 1 1*ARGB, 2*RGB V V Realtek® S1200A V Realtek RTL8111H 1GbNumber of DRAM: item 1: item 2: itme 3: itme 4: one: Install as recommend: install in other slot : two: Install as recommend: exchange each slot: install singe DRAM in recommend slotPRO Z690-A WIFI. I just bought a Dell Poweredge R710, it came with 18x 2GB DDR3 UDIMMs, so 36GB total memory. - checked all DIMM slots are enabled on BIOS. With XMP on, every stick worked individually in A2 and B2 but wouldn't POST in A1 or B1. The OP should be using A2 and B2, never using two sticks in the same channel. Jul 2004. In the case that you only had two RAM modules, you would want to put them in DIMM B1 and DIMM B2 (the black slots). Out of the box i wasnt able to get into Post at all with any ram configuration and the yellow RAM light would be lit. This connector is mainly found on ASUS ROG or ASUS Maximus motherboards, thus. cpu1_dimm_c2 32768mb ddr4 2666mh samsung 23ee703e sh5724g4unc26p2-sb. Replace DIMM_B2. . 774 Description: DIMM DIMM_B2 on server 24 operaState: disabled `show server memory detail` (locate impacted DIMM PID)- Example:. (Waited for the last 15 seconds and placed bid at the bottom dollar, all together, including shipping, was $95. The BIOS recognized the RAM in slot B2, and so did Windows. How to install DRAM? a. processor: Processor sensor (Status) IERR "CPU2" Uncorrectable ECC error, DIMM_A6For dual-channel memory configuration, install the DIMMs in slots DIMM_B1 and DIMM_A1 (orange slots); install another pair of DIMMs in slots DIMM_B2 and DIMM_A2 (black slots). Unsupported Memory Vendor : DIMM_B0 Warning 5186 Unsupported Memory Vendor : DIMM_B1 Warning 5187 Unsupported Memory Vendor : DIMM_B2 Warning 5188 Unsupported Memory Vendor : DIMM_B3 Warning 5189 Unsupported Memory Vendor : DIMM_B4 Warning 518A Unsupported Memory Vendor : DIMM_B5 Warning 518B. please refer to the information based on the source that we noted. A1. 取消. . Where should you install the new DDR 4 DIMM modules into the motherboard? a. Both sticks are both recognized in A1 and A2 together. Step 2 Use the command imm dhcp enable on. 137. The direct cause could be a few things, but replacing the dimm is the path of least resistance. - Plug the power cord and power on. As it turns out, these are the gray slots. 4 x DIMM, Max. Major [email protected] process outlined in the post you mentioned was to identify the Dimm with the issue, since you know the issue involves Dimm B1, the process won't be nessacary. So have all my parts and I’m preparing to do my first build, and want to have everything straightened out before I start. Both stick work together in A1+A2 but run in single channel mode. $7. 65V 8GB (2x4GB) G. . Page 19: Chapter 2 Bios Information To enter BIOS Setup after POST: • Press <Ctrl>+<Alt>+<Del> simultaneously. Dimm B1 empty Dimm B2 16 GB RAM Dimm A1 empty Dimm A2 empty This is the only way the computer boots. by putting it in A1 with B1 or A2 with B2. A2, A3 - marked blue) with another bank (B1, B2, B3 - marked red) tests the whole bank of DIMMs in a new bank, on a new memory controller. Overview This motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. 1. The PMem module firmware and BIOS releases are available from the system provider"MEMBIST failure – The following DIMM has been disabled by Bios: DIMM B2" I know the memory module is ok, if I try it on another slot, it work just fine. Open the downloaded user manual and search for. The C220/C240/B200 M5 servers support different memory reliability, availability, and. Okay thanks, thats better for cpu cooler ram clearance then. If you have 2 processors, swap DIMM_A7 with DIMM_B7 and see if the problem moves with the DIMM or stays with the slot. 3. Replace DIMM_A2. For Dual-Channel Mode, Channel 1 MUST equal Channel 2. Otherwise, the slots A3, A6, B3 &B6 are supposed to be empty hence: A1, A2&B1, B2 = 2GB. Free shipping. Hello there fellow hardware nerds! My ram has 4 dimm slots, it's dual channel and it's colour coded. Supports DDR5 Memory, up to 6400+ (OC) MHz. You may have listed your current memory configuration incorrectly. My details: AMD Ryzen 5 3600 @ 4398. Click [Manual & Document], in [Manual], select the corresponding user manual, and click [Download]. I have, RYZEN 2700x. The motherboard does turn on and all the fans are spinning, but the display stays black. B550 motherboard. Version: C220M4. Swap with DIMM_A1 if there isn't a B side. 0 x4 M. Here is the online link to the system memory map of dimm slot locations:. 8b. jedec_dimm_support@elpida. Nothing will boot from B1 or B2. Dell R710 Hardware Diagnostics Errors. You can use below link for those details. B C Attach the main power connector. b. or Best Offer. scope server x/y -> show memory-array detail. 2. I have 2 other cards H310 mini raid and H710 mini raid and when I installed them fans run normally at 10%. DIMM_A2 DIMM_A1 DIMM_B2. 0 x 6, COM x 5 PCI-Express[x16] x 1, PCI-Express[x4] x 1, PCI x 2 Onboad TPM Function EuP/ErP Compliance• E. Would probably try to source some loaner DDR4 to try before moving on to the other aspects. DIMM_B1 and DIMM_B2 Slots - My Computer Won't POST. XMP is enabled on the first bios screen and everything else in Ai Tweaker is just left to auto, in the bios the XMP profile says DDR4-3200. Upgrade Bios to (2. The ram should be in A1 and A2, or in B1 and B2, showing to be 1st and 2nd to the left from the CPU, or in 3rd and 4th to the left from the CPU in order to run in dual channel. • For Quad Ranks DIMMs, when installing less than or equal to. 1 Layout Content List Slots Label Function Note Page DIMM_A1 240-pin DIMM slot 1 DIMM_A2 240-pin DIMM slot 2 DIMM_B1 240-pin DIMM slot 3 DIMM_B2 240-pin DIMM slot 4 PCIEX1_1 PCI express x1 slot PCIEX16 PCI express x16 slot. And if the DRAM bus width does not match, the system may not run on. 1. Hopefully this is all new enough for return or RMA. Most of the time, an ATX form factor motherboard is equipped with 4 sets of DIMM memory slots, and the micro-ATX or mini-ITX form factors are mostly equipped with 2 sets of DIMM slots.