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nb wont go over 13x

post #1 of 15
Thread Starter 
hey i have the asus m4a78lt-m with the 955be @217x18.5 and the ram is g skill ripjaw4x2 1333 @ 1449 and the ram ond the cpu are stable.. buti can get the nb over 13x with it is at 2820 but if i go to 14x it will not boot windows.. the voltage is at 1.25 any help would be nice... anything i am missing just ask...
post #2 of 15
You need need voltage then 1.25v.
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HTPC
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SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
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post #3 of 15
The 2820 NB may just be your chips limit. You can try raising the CPU/NB Voltage. The max I would run would with that chip is 1.4-1.45v max.

As far as your mobo is concerned I'd strongly suggest you read this thread as to the likelihood of mobo failure when OC'ing this high. http://www.overclock.net/amd-motherb...hase-list.html
I'd be doing a little research before going any higher with your OC!!!!
 
Bruce
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Bruce
(14 items)
 
Ryzen Build
(20 items)
 
CPUMotherboardGraphicsRAM
FX 6350 Asus M5A99FX Pro R2.0 GTX220 G.Skill Ripjaws X F3-17000CL9D-8GBXLD 9-11-9-28... 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro WD20EFRX 64M Red x4 raid 10 WD5001AALS Blk Asus DRW-24B1ST 
CoolingOSMonitorKeyboard
Hyper 212 Evo R2 Windows Server 2008 R2 Standard Asus  Logitech MK300 
PowerCase
Corsair HX500 Corsair 330R Titainium 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
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Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
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post #4 of 15
Thread Starter 
well i dont want to up the chipvoltage anymore as it runs to hot with the cooler i have.. so i should keep it at 4gig... and my board is not on there it is micro so the powerphase is likely 4-1 or 3-1 .. and got another question how do i get the timings tighter with the ramas i dont know what to set in the bios do to this it shows more setings then cpu-z shows...
post #5 of 15
You might want to sure the MOSFETs are properly cooled before overclocking that 125W 955. Not that it'll cause you any danger, but you may not be able to test properly since OCP may very well kick in and too often. Right now they are unheatsinked and probably completely uncooled due to the TX3 tower cooler - and pushing over 125W - so they may get hot enough for OCP protection to kick in and throttle your CPU during load or even shut down the board.
As for the NB, at 2820 I'd say you're about at the limit for C3 revision IMCs

The main timings for RAM (CL, tRCD, tRP, tRAS, tRC, Command Rate) are the ones you try to lower. One at a time or for the first three values (CL, TRCD, tRP) three at a time (except maybe the middle value). Overclocking your RAM by speed or timings will also depend on your particular kit, rated speed/timings, and ICs if you can find them.
post #6 of 15
Thread Starter 
alright thanks i read the post about the power phase and i cant find anything on my board at what it is but if i am looking in the right spot and everything is it 8-1 or am i looking in wrong place right beside the chip.. do u have a pic of what they look like i can seam to get i good pic from the internet.and what is ocp becasue when i tryied to push to 4.2 the cpu would drop to 800.. and what is ic..sorry new to the overclocking thing... and do u any good mosfet heatsinks for a board that dont have clips or holes for a nice one...
post #7 of 15
It's to the left of the socket.
OCP = over current protection; ASUS boards all use this to protect the motherboard from damage, that's why there are never any ASUS VRM failures. The CPU speed dropping to 800Mhz during load at 4.2Ghz overclock is probably part of this protection and your VRMs are indeed getting too hot/overloaded to keep up. The CPU is already 125W TDP at stock and you are pushing it further.
You'll have to make do with individual heatsinks i.e. the Enzotech MOS-C1, but there are other models as well.
post #8 of 15
Thread Starter 
hey alright i i was looking in right spot and i belive it is 8-1 witch is not bad right??.. and i was thinking of this one.. and should i change the northbrigde heatsink... and do u know any good heatsinks for the 6850
http://www.newegg.ca/Product/Product...82E16835708012



was thinking somthing like this for heatsink
http://ncix.com/products/?sku=32191&...e=Thermalright
Edited by skyline_king88 - 4/6/11 at 5:50am
post #9 of 15
No, it is a 4+1 phase motherboard. Those MOSFET heatsinks are about the one I'm talking about. I notice you're also in Canada, I might be able to make a nice suggestion from NCIX later today after school.

The Thermalright heatsink is for the northbridge, it won't fit the MOSFETs; you don't really need northbridge chipset aftermarket heatsinks anymore unless they have an iGP on board and you use it and you want to overclock it just for kicks. This is not 775 when the mem controllers were on the northbridge.
post #10 of 15
Thread Starter 
alright thanks was not sure... and i was wondering should i wait to by a am3+ baord and spend 200$ or get the crosshair 4..
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