看多了好消息來看一點不好的消息吧QQ
https://forums.overclockers.co.uk/posts/30533843/
http://i.imgur.com/4PSNqMR.jpg
A comment from Asus:
"
I’ve decided to provide some recommendations on DDR4 limitations concerning
AM4 currently.
As it stands the AMD code has restricted RAM tuning options which means many
RAM kits at launch will not be compatible. This is the same for our
competitors also.
What we recommend is the following:
If fully populating a system with 4 DIMMs (2DPC), use memory up to a max of
2400MHz.
If using 1DPC (2 DIMMs) ensure they are installed in A2/B2 and use memory up
to max of 3200MHz.
The indication I have received from HQ is that AMD has focused all their
efforts on CPU performance so far and will release updated code in 1~2 months
when we expect improved DDR4 compatibility and performance."
In short if filling all 4 DIMM's set your speed to 2400MHz and work up from
there.
If using 2 DIMM's put them in the A2/B2 slots and a max of 3200MHz should be
possible.
In our testing only the Crosshair board achieved 3000-3200MHz, the others
were in the 2400-2666MHz range.
BIOS updates will come!
--
插滿四條最高支援到 2400Mhz（2DPC）
插兩條在A2/B2最高支援 3200MHz (1DPC)
其他板廠的情況也一樣
只有 Crosshair 支援到 3000Mhz~3200Mhz的DRAM
其他AM4主機板只支援 2400Mhz~2666Mhz
AMD 會在之後1~2月內推出新的BIOS更新來改善DDR4的表現
--
https://forums.overclockers.co.uk/posts/30533843/
http://i.imgur.com/4PSNqMR.jpg
A comment from Asus:
"
I’ve decided to provide some recommendations on DDR4 limitations concerning
AM4 currently.
As it stands the AMD code has restricted RAM tuning options which means many
RAM kits at launch will not be compatible. This is the same for our
competitors also.
What we recommend is the following:
If fully populating a system with 4 DIMMs (2DPC), use memory up to a max of
2400MHz.
If using 1DPC (2 DIMMs) ensure they are installed in A2/B2 and use memory up
to max of 3200MHz.
The indication I have received from HQ is that AMD has focused all their
efforts on CPU performance so far and will release updated code in 1~2 months
when we expect improved DDR4 compatibility and performance."
In short if filling all 4 DIMM's set your speed to 2400MHz and work up from
there.
If using 2 DIMM's put them in the A2/B2 slots and a max of 3200MHz should be
possible.
In our testing only the Crosshair board achieved 3000-3200MHz, the others
were in the 2400-2666MHz range.
BIOS updates will come!
--
插滿四條最高支援到 2400Mhz（2DPC）
插兩條在A2/B2最高支援 3200MHz (1DPC)
其他板廠的情況也一樣
只有 Crosshair 支援到 3000Mhz~3200Mhz的DRAM
其他AM4主機板只支援 2400Mhz~2666Mhz
AMD 會在之後1~2月內推出新的BIOS更新來改善DDR4的表現
--
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