Questions regarding GeIL PC6400 DDR2
- Thread starter mishima
- Start date
1. You should set the voltage of the RAM (Vdimm) to 2.1V to obtain the 4-4-4-12 timings it is rated at.
2. You an see the settings and change them in the BIOS - usually press Del key during the initial startup of your computer (called POST). Alternatively download a program called CPU-Z and run it from windows and it will tell you what you memory is running at.
3. What programs? If CPU-Z says 4-4-4-12 then the RAM is set at the correct timings but it is safer to up the voltage to 2.1V if it is not already.
I see from your sig you use an ABIT board - text is rather small and can't make out the exact model number. Anyway I am not conversant with that motherboard so maybe someone else can provide detailed instructions if you need them.
Also read the memory stickys - http://forums.overclockers.co.uk/showthread.php?t=53160
http://forums.overclockers.co.uk/showthread.php?t=17454111
cheers
2. You an see the settings and change them in the BIOS - usually press Del key during the initial startup of your computer (called POST). Alternatively download a program called CPU-Z and run it from windows and it will tell you what you memory is running at.
3. What programs? If CPU-Z says 4-4-4-12 then the RAM is set at the correct timings but it is safer to up the voltage to 2.1V if it is not already.
I see from your sig you use an ABIT board - text is rather small and can't make out the exact model number. Anyway I am not conversant with that motherboard so maybe someone else can provide detailed instructions if you need them.
Also read the memory stickys - http://forums.overclockers.co.uk/showthread.php?t=53160
http://forums.overclockers.co.uk/showthread.php?t=17454111
cheers
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I'm using my laptop at the moment which is 1600 by 1200 resolution. All text is fine except your sig has a smallish font but also the colour is a little difficult to distinguish against the background image. Or I'm going blind.
Your motherboard manual is here by the way
http://www.abit.com.tw/page/uk/down...&pTITLE_ON_SCREEN=AB9+Pro&pSOCKET_TYPE=LGA775
So, according to the manual you need to press Del when you see the POST screen (it will say somewhere press Del to enter setup). You will then be presented with several options. You need to enter the μGuru utility. Near the bottom under Voltage controls there is DDR2 voltage - it should read 2.1V. If not change it.
The memory timings are in the Advanced Chipset Features section in the main BIOS screen.
cheers
Your motherboard manual is here by the way
http://www.abit.com.tw/page/uk/down...&pTITLE_ON_SCREEN=AB9+Pro&pSOCKET_TYPE=LGA775
So, according to the manual you need to press Del when you see the POST screen (it will say somewhere press Del to enter setup). You will then be presented with several options. You need to enter the μGuru utility. Near the bottom under Voltage controls there is DDR2 voltage - it should read 2.1V. If not change it.
The memory timings are in the Advanced Chipset Features section in the main BIOS screen.
cheers
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Ok.
I have been into uGuru and set the DDR2 voltage to 2.10V.
I have attempted to change the timings but, come against some problems that I hope you (or someone else) can help me with.
Below are two screenshots of inside Advanced Chipset Features:
I need to set 4-4-4-12 (As I want stock timings). But here there are 6 different items.
I have been into uGuru and set the DDR2 voltage to 2.10V.
I have attempted to change the timings but, come against some problems that I hope you (or someone else) can help me with.
Below are two screenshots of inside Advanced Chipset Features:
I need to set 4-4-4-12 (As I want stock timings). But here there are 6 different items.
From the sticky
CAS (4) - CAS latency
tRCD (4) - RAS to CAS delay
tRP (4) - RAS Precharge
tRAS (12) -Precharge delay
Leave the rest at Auto for the moment. In future if you can change the command rate to 1T you can gain some small performance gains but you will need to test for stability.
cheers
CAS (4) - CAS latency
tRCD (4) - RAS to CAS delay
tRP (4) - RAS Precharge
tRAS (12) -Precharge delay
Leave the rest at Auto for the moment. In future if you can change the command rate to 1T you can gain some small performance gains but you will need to test for stability.
cheers
The picture you've shown is what info is stored on a chip on the RAM, SPD (Serial Presence Detect), which is used to instruct the BIOS on how to set the speed and timings but it doesn't show what the actual settings are.
If you want me to see the actual speed and memory timings you will need to post a picture of the memory tab.
cheers
If you want me to see the actual speed and memory timings you will need to post a picture of the memory tab.
cheers
No problem.
The timings are set correctly and with 2.1V you should have no stability problems.
I see the frequency is at 408MHz and because it is DDR2 it runs at twice the speed 816MHz. Technically the RAM is rated as 800MHz but don't worry about it your RAM will easily run at the slightly higher frequency.
Good going. cheers
The timings are set correctly and with 2.1V you should have no stability problems.
I see the frequency is at 408MHz and because it is DDR2 it runs at twice the speed 816MHz. Technically the RAM is rated as 800MHz but don't worry about it your RAM will easily run at the slightly higher frequency.
Good going. cheers