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Changing RAM Timings

post #1 of 14
Thread Starter 
I recently got 2gb of Gskill DDR2800 and I wanted to change the timings on it. Is it necessary to change things such as processor FSB or the Mhz at which my RAM runs at in order to change the timings? Or is it as simple as going into my BIOS and manually changing the timings? Also, does changing timings easily make the system unstable and if so will it have all the normal side effects of an unstable system? (crashing, etc.)

Thanks,
R3TR3C
    
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post #2 of 14
You can just go to bios and start adjusting. Then run memtest for a few passes and see if you get any errors.
post #3 of 14
Lowering timings too far WILL make your system unstable. That is why you lower ONE timing by ONE clock at a time, then run memtest (3 runs of test #5 is most time-efficient way of testing stability, although doesn't ensure 100& stable settings). Then repeat if stable.
post #4 of 14
Thread Starter 
ok so just to make sure that I understand:

The timings ARE NOT in some sort of ratio that needs to be kept? What I mean is like if the timings are 4-4-4-12 and I want to OC them is it ok if they end up being like 2-3-2-8, etc.?
    
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post #5 of 14
No, not at all. Just begin with the first timing, and go through one at a time.
post #6 of 14
CAS4 timings are very good with DDR2 and venturing below that (or tighter) will only cause you grief when OCing.
    
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post #7 of 14
Quote:
Originally Posted by The Duke View Post
CAS4 timings are very good with DDR2 and venturing below that (or tighter) will only cause you grief when OCing.

agree with you bro
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post #8 of 14
Thread Starter 
So would it be best to just change the timings to 4-4-4-12 (from 5-5-5-15) and not go any lower?
    
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post #9 of 14
Gskill HZ's can do 4-4-4-10 easy on 2.1v..even 2.0 if your lucky. If you want to run 2.2-2.3v, you can go as low as 4-4-4-5 or 4-3-4-4 @ 800mhz...some people claim they can do CAS3 on 2.4v...I havent tried though...1030mhz @ 4-4-4-12-4 on 2.25v is fine for me!
post #10 of 14
Thread Starter 
So if I went into BIOS like...right this minute, changed my voltage to 2.1 (if its not already there) and changed to 4-4-4-10 timings and ran memtest for errors you think id be alright? Or would you suggest still changing one setting at a time and running memtest #5 3 times like others have suggested?
    
CPUMotherboardGraphicsRAM
Amd Athlon 64 X2 5600+ Windsor 2.8 Ghz ASUS M2R32-MVP 580x Chipset/Socket AM2 Sapphire ATI Radeon X1950XT G.Skill 2 x 1g DDR2 800 4-4-4-12 @ 1.9v OCed 
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ATA Seagate 200gb and SATA Seagate 320gb CD/DVDR/RW Windows XP MCE NEC Opticlear Multisync 90GX2 19" w/ gloss finish 
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umm...its basketball shaped 
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CPUMotherboardGraphicsRAM
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Hard DriveOptical DriveOSMonitor
ATA Seagate 200gb and SATA Seagate 320gb CD/DVDR/RW Windows XP MCE NEC Opticlear Multisync 90GX2 19" w/ gloss finish 
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