[Solved] X399 Taichi Won't Boot / No CPU Fan |
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APDrones
Newbie Joined: 12 Mar 2018 Location: Michigan Status: Offline Points: 16 |
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Posted: 12 Mar 2018 at 2:52am |
Hi All,
Let me preface by saying I have read 2 other threads on here for similar issues where I did learn but did not solve my issue. My set-up: ASRock X399 Taichi 1950X TR CPU Corsaid RM 850X PS EVGA GTX1070 FTW GPU Vengeance LPX 4x8 GB RAM Vengeance LPX 2x16 GB RAM (more on this later) Samsung 850 EVO 250GB SSD for OS WD 5TB HDD for storage I'm updating my previous set-up with plans to go to more cores and more RAM. Previous was EVGA X99 FTW K151 with i7-6800K Broadwell-E and the 4x8 Vengeance RAM. So far what I know / have tried:
So.... what else do I try or look at? Thanks in advance!
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MisterJ
Senior Member Joined: 19 Apr 2017 Status: Offline Points: 1097 |
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APDrones, you must use a GPU, your processor/board provide no graphic support. What shows up in your Dr Debug display? Do you have both the 4-pin and 8-pin CPU power connectors plugged? Please make sure the 4-pin is not rotated and they are CPU and not PCIe. Have you tried the CPU_FAN1 connector? If still not booting, please insert one stick of memory in A1, the video card and nothing else and see if it will boot or at least post a debug code. Try all memory slots and all sticks, one at a time. Enjoy, John.
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Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD
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wardog
Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447 |
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Also, what two specific mem kits, by P/N's.
Double check your mem placement against pg20 of your manual. Prolly best to troubleshot using slots A2 and B2 populated to get her booting. ! Clear the BIOS EVERY TIME you lift and move any memory ! |
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APDrones
Newbie Joined: 12 Mar 2018 Location: Michigan Status: Offline Points: 16 |
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MisterJ, yes 4 and 8 pins are connected and confirmed 4 pin is in correct orientation and is a cpu harness not a PciE. I have not been able to get any error code on my Dr Debug which concerned me. Will remove all but one memory and try. I was using slots D1 / D2 using the manual going down by priority.
Wardog - will provide mem P/N?™s in a few hours when I get home. |
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Xaltar
Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 24653 |
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Threadripper CPUs are notoriously troublesome to install correctly. If it is out of alignment, not torqued down enough, torqued down too much it will not POST. The fact that your CPU fan header will not power up when you power on the system, I suspect an issue with the CPU mounting. Follow the instructions carefully, take your time and make sure the CPU is installed correctly. Threadripper is a beast but it takes a little more fiddling sometimes to get it to seat properly.
Also make sure you don't have any shorts under the board, the non functioning CPU fan could also be the result of shorting somewhere, an errant standoff or loose screw etc.
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TANWare
Newbie Joined: 24 Sep 2017 Status: Offline Points: 120 |
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I'll confirm these are a pain to get seated properly. You have to get all three bolts just started and then torque down the plate. I started mine then snugged up in order the three bolts before the final torqueing of them in order. A pain but worth it in the end.
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APDrones
Newbie Joined: 12 Mar 2018 Location: Michigan Status: Offline Points: 16 |
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APDrones
Newbie Joined: 12 Mar 2018 Location: Michigan Status: Offline Points: 16 |
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Tanware and Xalter - I agree the initial install took me almost an hour of headache to feel confident in the CPU?™s seating. This second time felt pretty good, I can get the front screw engaged with a little pressure then snug all 3 and tighten in order. The initial install I did not go all the way to the prescribed torque in the provided T20 because I was worried it was too much, I did go to it the second time I checked the CPU and it felt good / I wasn?™t worried.
I also suspected CPU issues from the fan not powering on. This board mounted the same as my old x99 so I reused fasteners and double checked they were tight when I installed the mobo this second time. What?™s the best way to do basically a bench top check of CPU before installing mobo in case? |
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APDrones
Newbie Joined: 12 Mar 2018 Location: Michigan Status: Offline Points: 16 |
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No luck with 2x8GB mem in A2 and B2 either.
Is clear CMOS process to hold the clear/reset cmos button for 10 sec as you unplug ps with everything turned off? Looks like next step will be to try to get CPU reseated... I guess as long as I have it on a grounded surface I can power it and see if CPU fan comes on at start.... that?™d be progress from current state |
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MisterJ
Senior Member Joined: 19 Apr 2017 Status: Offline Points: 1097 |
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APDrones, see your manual for the exact Clear CMOS procedure. You can also open the UEFI and hit F9 then F10. Do not place your board on a conductive, much less, grounded surface. You could mount it on a few of the standoffs and sit it on an insulating surface. Try powering it up like this before tearing into the CPU again. Good luck and enjoy, John.
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Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD
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