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Discussion Starter · #1 ·
I reach FSB limit for this mobo is 140mhz any more have no effect simple after reboot in bios setup I will see for example 145 but when I boot windows cpu-z will detect only 140 (exactly 139,92)
140 FSB, of course, is fully stable.
I would understand if the higher FSB was not stable but it clearly looks like a lock.
And about Ram Voltages I want push a bit more but 1.65V ( mobo limit) it to low for more OC

System Specs
CPU: AMD Althon X4 740 @4,47Ghz Max temp 54C
Stepping: 1
Revision TN-A1
Frequency: 4477Mhz
Ref* Mulitiplier: 139.85 * 32 ( Under Bios is 140)
CPU Voltage: 1.45V
NB Frequency: 2238.8Mhz
NB-Volts- + 0,1V
RAM: 8GB 1866Mhz DDR3 CL8 @ 1.65V ( Corsair Vengeance CMZ8GX3M2A ) CL8-8-9-22
Motherboard: Asus A88XM-A + added heat sinks on power section
GPU: Sapphire Radeon R7 260X 1GB GDDR5 OC
Cooling: Air Cooling/ CPU Cooler Master Hyper TX2 + AAB Cooling Thermal Grease 2 Max Temp 54C
O.S. : Win 7.1 Home 64bit

 

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Turtle Lives Matter
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4,953 Posts
Nice VRM sinks
smile.gif
 

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Discussion Starter · #3 ·
Before I added them lowest stable Vcore was 1.535 the are small but do work done + Cooler directing some airflow on VRM
smile.gif

First I want bigger and longer but pcb elements on VRM have different heights and this capacitor in middle has in my way to
mad.gif

Almost forget i add heatsink to ram VRM
rolleyes.gif

 

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Discussion Starter · #4 ·
Hm... no one have any Idea ?
Any one have any experience with AMD UEFI ?
 

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Turtle Lives Matter
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Not many people can keep the system stable when raising the reference clock. 140 is rather epic for FM2.
 

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Discussion Starter · #6 ·
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