View Full Version : About Dominator 1800 C7
noobzed
04-01-2008, 01:09 AM
In fact, wonder what are the exact spec for this ram, I know this is
7-7-7-20 but after I do not know 1T 2T ?
and all the other timings tRC and so on, do you have all these timings
Yellowbeard ?
tRRD
tRC
tWR
tWTR
tREF
?
bachus_anonym
04-02-2008, 07:32 PM
Our specification for TWIN3X2048-1800C7 calls for DDR3-1800 7-7-7-20-2T (tCL, tRCD, tRP, tRAS, tCMD). On your 790i motherboard, set tRRD, tRC, tWR, tWTR and tREF to AUTO, which will work just fine for 1800C7. This will ensure that your motherboard BIOS is properly set up for 1800C7 and at the same time will be a baseline for your further OCing adventures...
Simply put, BIOS code will calculate clock cycles for each of above 4 timings you set to AUTO at DDR3-1800 based on minimum cycle times (in nanoseconds) included in base SPD of TWIN3X2048-1800C7. And tREF is 7.8 microseconds. Your modules do not contain any profile supported by EPP2.0.
From the top of my head, you should be seeing 6-44-12-18-7.8
noobzed
04-03-2008, 01:53 AM
Our specification for TWIN3X2048-1800C7 calls for DDR3-1800 7-7-7-20-2T (tCL, tRCD, tRP, tRAS, tCMD). On your 790i motherboard, set tRRD, tRC, tWR, tWTR and tREF to AUTO, which will work just fine for 1800C7. This will ensure that your motherboard BIOS is properly set up for 1800C7 and at the same time will be a baseline for your further OCing adventures...
Simply put, BIOS code will calculate clock cycles for each of above 4 timings you set to AUTO at DDR3-1800 based on minimum cycle times (in nanoseconds) included in base SPD of TWIN3X2048-1800C7. And tREF is 7.8 microseconds. Your modules do not contain any profile supported by EPP2.0.
From the top of my head, you should be seeing 6-44-12-18-7.8
clear answer :up:
and on my mb I have a timing named: tFAW (18 on Auto)
what's this tFAW ?
wonder ( even if auto set is all right ) the exact spd specs of my ram..
have you ability to give this bachus ?
is it necesarry to cool the 1800c7 at his rated speed and spec ?
( airflow fans are too noisy for me ... )
AN00BIS
04-19-2008, 04:20 PM
uhm, i gots a problem with my Corsair Dominators too, i bought the DDR3 1800CFIN7 ones, and run them on an Asus Maximus Extreme Mainboard. and there, they do only run at 1333. Everytime, i try to set them at 1800, the board Auto-overclocks the cpu too(to 4.3 GHZ) where it is bootable, but not stable enough to run Apps. how can i solve this problem?
Maarten-NForce
04-20-2008, 01:58 AM
@^^
What are your timings, and which Vdimm?
AN00BIS
04-20-2008, 06:10 AM
oh well, i found out, they run on 1.5 V, :rofl: but the timing were silly lose too, i think, i ll first up the voltage to the 1.9 ,which they are specified for:shakes:
on my Striker II Extreme they auto installed @ 1T and have been there for ever, they easly went to 1800MHz @ 7-7-7-20 1T / 2.0v for me, I would like to know if any one set other timings or is best just to leave them on auto?
Yellowbeard
04-21-2008, 06:06 AM
We recommend leaving them at auto.