Ram divider/overclocking question!

beast · 7 Jan 2007 at 17:27

My FSB of my 6600 is 340, and my RAM divider is set at 2, giving the RAM speed 680MHZ. but it's rated for 800MHZ. If I set the divider to 2.5, that gives 850mhz, however the System fails to start wtih this setting.

How can I increase my RAM speed, or do I just have to leave it at 680mhz? I do not wish to overclock the chip any more.

Oh finally, if I set the RAM speed to auto, it sets it as 800. Can I leave it on auto with an o/clocked CPU?

beast · 7 Jan 2007 at 17:41

Why would that alter the speed of the RAM though? as this is linked to the FSB by the looks of things?

beast · 7 Jan 2007 at 17:46

It won't run with the divider @ 2.5 (850). I could slacken the timings from 4,4,4,12, but to what though?!

beast · 7 Jan 2007 at 19:19

Doesn't like it! but it seems fine @ 5,5,5,16 so I'll leave it at that.

beast · 7 Jan 2007 at 20:13

Sorry to sound thick, the "8" in the equation, is that the figure that is currently "9" (default for the 6600) in my motherboard?! I think it's called the multiplier?!

beast · 7 Jan 2007 at 20:18

I'll give it a go Cob! restarting now...

beast · 7 Jan 2007 at 20:29

Cob = LEGEND!!!

Ram is now bang on 800mhz and running 4,4,4,12 timings, and the 6600 is at 3.2gig on standard volts. It's just what I wanted

thanks mate!

beast · 7 Jan 2007 at 20:34

Cob, sorry have you got a link to a site with the orthos blend? I have downloaded but encountered probs. I'd like to try again. Muchos thankos !

beast · 7 Jan 2007 at 20:50

Spoke too soon

I tried a re-boot because usually if it doesn't like the setup, rather than re-boot, it will turn itself off, then try to power up 3 or 4 times before putting the FSB/RAM speed back to default.

It's just done this with the RAM at 800MHZ 4,4,4,12 + 3.2 gig cpu. It is definetly the RAM at fault because if I slacken the timings to 5,5,5,18 it runs fine, reboots no problem.

Is the geil 6400 not guaranteed to run 4,4,4,12 @ 800mhz??!

beast · 7 Jan 2007 at 20:57

F9...

Your spec's pretty similar to mine actually, apart from you're on water!

beast · 7 Jan 2007 at 21:04

Last time I flashed the BIOS, windows wouldn't boot and I had to re-format. I've just spent 3 whole days re-installing stuff. Do I take the risk... :rolleyes:

beast · 7 Jan 2007 at 21:24

Ah ****

Just installed F7 using @BIOS, now the damn thing won't boot up at all :mad:

Just removed the CMOS battery, but it looks like I've just ballsed this DS3 :rolleyes:

beast · 7 Jan 2007 at 21:27

Okay well it starts now, but "a disk read error occured"

Does this mean I'm on for my 9th re-format?!

beast · 7 Jan 2007 at 21:31

Can't believe I have to re-format again :mad:

Your fault Cob!

Just kidding.

beast · 7 Jan 2007 at 21:50

Phew, I'm back on my own PC! because the BIOS defaulted to the preset settings, the IDE/RAID wasn't changed, and it couldn't pick up my RAID disks. But I changed that and it's fine

so I'm now on F7 and it's running windows fine, which is good. Shall I give the 8 multi/400 fsb a go with 800/4,4,4,12 RAM again you reckon?

beast · 7 Jan 2007 at 22:03

Okay I'm running the settings I want. Now going to try the reset test, then the power off/on test....

beast · 7 Jan 2007 at 22:05

Reset test good, now for the biggie (power off/on)

beast · 7 Jan 2007 at 22:08

I think we've cracked it! booted up first time. I'll just do it once more to make double sure...

beast · 7 Jan 2007 at 22:11

Yay! Cob = LEGEND (x2) it just boots up straight off with no hiccups. The RAM is kicking ass in sandra's benchies, and the CPU is fine at 3.2gig. Going to run Orthos Blend overnight, and if that's fine then I've achieved the PC I wanted :cool:

Only took 2 months lol!

beast · 7 Jan 2007 at 22:18

Wahey! Went from doom 'n' gloom (messed up BIOS, reformat, maybe dodgy RAM) to spot-on in just over 10 minutes. Oooh it's a rollercoaster ride with tweaking PC's