JSLOW1: Slow Mode Booting Jumper
This jumper is used for LN2 cooling solution, that provides the extreme overclocking 
conditions, to boot at a stable processor frequency and to prevent the system from 
crashing.
Normal 
(default)
Enabled 
(Please enable this jumper 
during BIOS POST.)
 Important
 y
Users will try extreme low temperature overclocking at their own risks. The 
overclocking results will vary according to the CPU version.
 y
Please don’t switch to Enabled when power-off or the system will be un-bootable.
 Important
 y
To ensure system stability for Dual/ Triple/ Quad channel mode, memory modules 
must be of the same type, number and density. 
 y
Due to chipset resource usage, the available capacity of memory will be a little less 
than the amount of installed.
 y
The Memory DIMM voltage below 1.35V is suggested to protect the CPU.
 y
Please note that the maximum capacity of addressable memory is 4GB or less 
for 32-bit Windows OS due to the memory address limitation. Therefore, we 
recommended that you to install 64-bit Windows OS if you want to install more than 
4GB memory on the motherboard.
 y
It is recommended to use a more efficient memory cooling system for full DIMMs 
installation or overclocking.
 y
The stability and compatibility of installed memory modules depend on installed CPU 
and devices when overclocking.
* For 2990WX processor, DIMMC1, C2, 
D1 and D2 are controlled by Die1 and 
DIMMA1, A2, B1, B2 are controlled by 
Die0.