Closed DDR2 RAM causing a no-boot issue Tags: ASRock DDR2 RAM Boot Motherboards Last response: January 10, 2012 7:10 AM in Motherboards Share mickane001 December 31, 2011 12:55:35 AM I have realized an issue building a system with an ASRock G31M-GS rev 1.10 mobo and have narrowed the problem down to the RAM. (Old, but new equipment). Symptoms: Fans and lights go on, but no 'beep' and no signal out to the monitor. When RAM is removed the expected beep error signal occurs. Swapped RAM with another system and this board seems to start booting fine (VGA signal) ... I'm typing this before continuing with the install. RAM that is not working: Corsair XMS (CM2X2048-6400C5) 5-5-5-18 latency, 2 x 2 GB modules. This is PC6400, 800mhz DDR2 RAM. RAM that works is Kingston KVR800D2N5/1G; 2 x 1GB modules. This also PC6400, 800 mhz DDR2 RAM. I obviously have to buy more RAM for the mobo - it supports a maximum of 2 x 4GB modules, but I would really like to learn why this error could exist. Can anyone out there enlighten me? Thank you More about : ddr2 ram causing boot issue Best solution treefrog07 a c 78 V Motherboard January 2, 2012 4:20:57 AM Share Sometimes specific RAM chips were not compatible with the board, which is why most motherboard manufacturers maintain a list of compatible RAM, this condition seemed to occur more often two or three years ago. mickane001 January 3, 2012 12:44:08 AM A colleague suggested that I try each RAM module separately. One RAM module worked fine, while the other presented the same no-boot issue. Conclusion: One of the two RAM modules is defective. I'm now opening an RMA with Corsair as the RAM has a lifetime warranty. I looked into 2x4GB modules of PC6400 RAM ... whoa!! nope ... won't go up to $100 / module (I remember paying $45 per MB for my old 286 mobo). Thanks for the answer - it was a good idea. I had already verified the rev 2.0 of the mobo was certified; mine is rev 1.1. Cheers Can't find your answer ? Ask ! Get the answer mickane001 January 9, 2012 11:05:20 PM Best answer selected by mickane001. Can't find your answer ? Ask ! Publish Related resources : ForumHP a6300f noboot - Beep Sequences W/Clips ForumNo Video/Post - Gigabyte GA-EP35-DS3L ForumIs it RAM or the GPU Causing The Issue ? ForumIs High End DDR2 Ram Worth it? ForumFailed setting RAM timings.. e6600, ddr2 800 Forumcan my ddr2 ram cause my video driver to crash ForumHelp with New Build Random POWER-ON ISSUE ... ForumIssue with new DDR2 RAM ForumNewly built ForumECS 915P-A ddr2 533 ram issues ForumSolving what is causing my computer to freeze. ForumFaulty RAM causing crashes? ForumMixed memory sizes and speeds? (NOT an overclocker). ForumDDR, and DDR2 RAM is running at 3/4 full speed ForumNew hardware causing issues ForumFed up!!!! ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumIssue with line out on Gygabyte GA-Z68X-UD3H-B3 Forum[Solved] Is this RAM compatible with my computer? ForumHelp Optimizing GSkill Ram plz. More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !