X99M Extreme4 and X99 Extreme3 not booting
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=1428
Printed Date: 24 Dec 2024 at 3:56am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X99M Extreme4 and X99 Extreme3 not booting
Posted By: scottgus1
Subject: X99M Extreme4 and X99 Extreme3 not booting
Date Posted: 05 Dec 2015 at 12:12am
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I ordered these parts for two new pc builds: http://www.neweggbusiness.com/product/product.aspx?item=9b-19-117-402" rel="nofollow -
http://www.neweggbusiness.com/product/product.aspx?item=9b-20-231-965" rel="nofollow - http://www.neweggbusiness.com/product/product.aspx?item=9b-14-125-774" rel="nofollow - video card http://www.neweggbusiness.com/product/product.aspx?item=9b-17-438-030" rel="nofollow - regular Intel 2/5" SSDs & SATA optical drives One PC has the X99M Extreme4 (BIOS P1.80) and the other has the X99 Extreme3 (BIOS P1.40) (I wanted to get two of the same but the store ran out on Black Friday). The intent with 2x16GB memory sticks was to allow another 2x16 set if we needed to go to 64GB. When I turn the builds on, the Xtreme4 shows a DrDebug code of B0 (memory problem), and the Extreme3 just toggles on and off. Troubleshooting, I found that the Asrock website says these motherboards require RDIMM memory. Turns out the G.Skill is UDIMM. Is this a problem? (Crucial's memory finder offers UDIMM memory for these boards, and in a chat they say they successfully tested these boards with UDIMM memory.) And FWIW, the "G.Skill F4-2133C15Q-32GRR" mentioned on the Asrock X99 Extreme3 memory list shows as unbuffered on the G.skill website ( http://www.gskill.com/en/product/f4-2133c15q-32grr" rel="nofollow - http://www.gskill.com/en/product/f4-2133c15q-32grr ). I also did a forum search and found a brief mention of some folks running another X99 version board and having problems running 2x16GB earlier this year. Is the 2x16GB the problem? I find that non-ECC memory (for the I7 cpu's) doesn't seem to come in RDIMM. Can I use UDIMM on these boards, and do I have to give up on 2x16GB and go to 4x8GB? |
Replies:
Posted By: Xaltar
Date Posted: 05 Dec 2015 at 12:59am
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Welcome to the forums. Try using a single module of RAM and make sure it is seated properly then clear CMOS using http://forum.asrock.com/forum_posts.asp?TID=630&title=how-to-clear-cmos-via-battery-removal" rel="nofollow - this method for both systems. If this fails then try the RAM in each slot in turn repeating the above process. If you still cannot achieve post then you may want to try with different RAM, preferably something from the http://www.asrock.com/mb/Intel/X99M%20Extreme4/?cat=Memory" rel="nofollow - memory support list for your board/s. Also make sure the CPU is seated correctly and that the CPU cooler is not pressing down on the CPU hard enough to cause pins to missalign, the memory controller is on the CPU so it not being seated properly can cause this issue.
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Posted By: scottgus1
Date Posted: 05 Dec 2015 at 1:03am
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Thanks, Xaltar, for the info. I'll try the slot swap & clear CMOS procedure you mentioned & report back. How would I determine if the CPU cooler is pushing down too hard?
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Posted By: Xaltar
Date Posted: 05 Dec 2015 at 1:25am
| Checking the CPU will involve removing it and checking the slight scratch marks the pins leave on the contact pads, if any of them extend onto the substrate then your cooler was too tight. Reinsert the CPU and attach the cooler again so that it is tight but not so tight it cannot be rotated slightly without too much effort. |
Posted By: scottgus1
Date Posted: 05 Dec 2015 at 2:12am
| Very good, I'll check that too. Muchas Gracias! |
Posted By: wardog
Date Posted: 05 Dec 2015 at 3:39am
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EDITED TO REFLECT A BONER I MADE IN BIOS REVISION NUMBERING If you can find that one stick that allows each to boot, first update both BIOSes. The X99 platform is new and manufacturers have been pumping out new BIOSes to keep up with the ever expanding supply of new DDR4 sticks that include I just looked at both of your boards download pages. You are way way behind on both in respect to BIOS revisions. I don't normally suggest people update to BETA BIOS but in this instance, newness of X99, I will. The Extreme3 has a BETA, 2.05, dated Dec 03 2015, that states "Improve DRAM compatibility" The Extreme4 has a BETA, 1.95, dated Dec 03 2015, that states "Improve DRAM compatibility" You are good to go with the F4-2133C15Q-32GRR Kits according to G.Skills Memory Configurator. I'm betting a "simple' BIOS update solves both boards issues < id="kpm_plugin" ="application/x-KPMPlugin">
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Posted By: scottgus1
Date Posted: 05 Dec 2015 at 3:54am
| Thanks, Wardog. I'll look at the BIOS updates too. I suppose I will need some form of working memory to flash the BIOS, huh? (So far all we have of DDR4 anything is these 16GB sticks.) |
Posted By: wardog
Date Posted: 05 Dec 2015 at 4:16am
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Yea. Hopefully you find one of the four to be "magical' and allow them both to boot and flash with. < id="kpm_plugin" ="application/x-KPMPlugin">
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Posted By: scottgus1
Date Posted: 09 Dec 2015 at 1:52am
| I got 32GB (4x8) UDIMM from Crucial and have successful boots on both boards, one with the cooler loosened a bit and one tightened to cooler's instructions. Yay!! I'm going to take the CPUs out & look at the pin scratches anyway, and I'll try BIOS updates & report back.. |
Posted By: scottgus1
Date Posted: 09 Dec 2015 at 2:39am
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Well, I'm happy to report the 2.05 BIOS for the Extreme3 allows all 64GB of G.skill to show up! Yay again! I did the BIOS update on the Extreme4, and the 32GB still shows just fine, but I haven't tried the 64GB there yet. I'll let you all know how it turns out if my boss lets me try. (He's taking the 64GB PC, of course :) )\ Thanks to Xaltar & Wardog for your help, it's really appreciated!
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Posted By: Xaltar
Date Posted: 09 Dec 2015 at 2:50am
Happy to hear you have it sorted out. Enjoy the new build 
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