Tom's Hardware > Forum > Overclocking > Memory > [Solved] Getting Speed on the ram

[Solved] Getting Speed on the ram

Forum Overclocking : Memory [Solved] Getting Speed on the ram

List of things I've done till now -
Put the voltage to 1.65v
Put it to 1600mhz in the bios, booted,it set the bank cycle time to 40 from 33 and command rate from 1T to 2T, it was 9-9-9-24
Checked for stability, it was stable.
Next tried to lower tRCD, tRP to 8 each by AMD Overdrive, caused a BSOD.
Tried a 1333mhz with 7-7-7-21 and bank cycle 33, command rate 1T, turned out stable.

Might as well bump more volts into it and try getting a CL8 out of 1600mhz or a CL6 out of 1333mhz, which is better?

Specs -
AMD 955 BE at stock (c3 if anyone is curious)
ASUS M5A99X EVO
4x2gb Kingston DDR3 ram, the stock settings are 1333mhz, 9-9-9-24 @ 1.5v, 1T
Right now the northbridge is at 2.6ghz.

If I want a 2.8 - 3.0ghz out of my northbridge, which voltages are to played with?
I'm following the path RAM,NB,CPU.
Please no comments on changing my path.

Reply to amd955be5670

use this '1333mhz with 7-7-7-21 and bank cycle 33, command rate 1T'
and use fsb to make it to 1600, this way you will have 1600mhz at cl7
or
8-8-8-24-36-1t at 1333 and use fsb to make it to 1600 at cl8

play with cpu-nb voltage only

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http://i1228.photobucket.com/albums/ee458/realygenius/Gogeta_super_kamehameha.gif

Reply to truegenius

Thanks for the fast reply, but I have a doubt
my NB is set at 13x, so increasing the fsb from 200 will make the nb go beyond 2600mhz, well thats practically what I want but I think I must meddle with voltages first, so the current CPU-NB is 1.35v, should I rev it upto 1.4v?
There are also NB HT, NB 1.8v settings available.
According to your theory, I'll have to do a 240mhz on fsb (that makes it 3840mhz, so I'll have to pull few multipliers down my cpu to make it 3.5 or 3.6ish since I don't have the cooling to have 3840mhz just yet)
A 240mhz would make the NB 3120mhz, so I'll have to make it a 12x multiplier, did I get it right?

In a nutshell, I need to rev up the CPU NB voltage, reduce the cpu multiplier, reduce the NB multiplier, rev up the fsb to 240mhz?

Reply to amd955be5670

do not change these settings
NB HT, NB

yes you have to 'rev up the CPU NB voltage, reduce the cpu multiplier, reduce the NB multiplier, rev up the fsb to 240mhz'

or you can use x11 nb if you want to keep your nb around 2600 without changing the voltage and to keep it a little cool

Message edited by truegenius on 01-07-2012 at 11:33:47 AM

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Reply to truegenius

How much voltage increase on the CPU NB are we talking about?
like I said its currently 1.35v

what I am to do if I don't post?

Reply to amd955be5670

keep it below or equal to vcore
first try your fsb to 230 with x11 nb, then try voltage (if unstable)

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Reply to truegenius

How about going CL5 on 1333mhz itself?

Reply to amd955be5670

okay I just tried CL6 with 1333mhz, hanged and have suffered a reboot, I still wonder if the 1600mhz at CL7 using a 240mhz fsb is going to be stable, or 230mhz.

And you still haven't indicated, what do I do if I don't POST? the last time I had tried 210mhz FSB on a different board, I had to do a reboarding before my PC would boot up, I hope that doesn't happen this time.

Message quoted 1 times

Reply to amd955be5670

Best answer

i prefer more mhz rather than low latency
but you can try this too, by setting 1066mhz ram and using cl5

have you tried those settings that i have stated above?

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Reply to truegenius

amd955be5670 wrote :

in that case you will have to clear the cmos (take a look at manual)

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Reply to truegenius

The last time I tried that(CMOS Reset), it didn't work. So I am quite hesitant to try out what you said.

But a 230mhz and 12x nb multiplier along with cpu-nb and cpu vcore voltages to 1.45 sounds quite healthy to me, but if I don't post its going to be a pool of worry for me.

Reply to amd955be5670

first try to clear cmos to check that if it is working correctly, do it now

Message edited by truegenius on 01-07-2012 at 12:14:02 PM

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Reply to truegenius

Alright it didn't post, I think this ram ain't built to work at 1600mhz, CL7.

Though the NB works at 2800mhz by upping the voltages to 1.45v.
So I guess I achieved the goal I wanted to.

Thanks once again.

Reply to amd955be5670