DS3 - New RAM

markyp23 said:
Hi.

Got some new RAM (which is fully memtest working on another PC) 1000MHz stuff.

I took out the old 2x256MB of PC2-4200 (533MHz) and reset the CMOS before putting the new stuff in.

The new RAM goes in and sometimes it will POST but I'm mainly getting the restarting problem that is so common on the DS3. Initially it was working fine and so I went to the BIOS. In the MIB, it says "memory frequency" and then has two values:

Memory Frequency: 533 1000

(1000=400x2.5 - the settings I'm running).

What does the 533 mean?

I'm suspecting the board is "stuck" on the old RAM's settings and as such is trying to run it too fast which is causing BSODs (which I was having when it was working). Currently using the old 2x256MB 533MHz sticks at the moment in that PC which is working fine.

Thanks for any help.

EDIT: Using F10 BIOS and it's rev 3.3 if that makes a difference.

The 533 is the FSB I think, its so then you can get it running 1:1.

I also get this restarting problem, is there a fix?
 
This is typical of pc2-8000 or 8500 like mine is...

PC28500 + is just overclocked PC2-6400 so should detect as 800mhz, which mine does, however i find it hard to get orthos stable with ram speed over 800mhz, this is a problem with the mobo and specific memory chip type.

Ive tried many differing speeds and fsb, and come to this conclusion , also based on info from other forums.
 
The RAM and motherboard are working correctly.

You need 2.1-2.3V usually to run PC8000 speeds, but motherboards are set to boot at 1.8V, so the memory manufacturers all got together and decided that they would set their RAM to run at a crappy speed and loose timings (often 667MHz, 5-5-5-15) to make sure they would boot up at 1.8V.

Once you start the machine up, then you can adjust the voltage upwards and increase the speed.

If you haven't increased the voltage, that might explain your BSODs.

Depending on what kind of CPU you have you'll want to vary the multiplier somewhere from 2:1 (2.0) to 3:2 (2.5) and then crank up the CPU FSB.

This is pretty basic stuff and is covered in many DS3 overclocking threads, so you really ought to read at least one of those before you get really frustrated, or worse, potentially damage something expensive.
 
I've got some Patriot 800mhz in my DS3. Just cant get it Orthos stable on any overclock what so ever. I've tried jsut about every bios version out there and i've slackened timings, increased voltages etc.

So I thought maybe its the RAM. Took it round to a friends house and stuck it in his DFI mobo and OC'd it to 1001mhz straight away Orthos stable.

Moral of the story is - don't buy a DS3 cos they are cack. (and the bios is absolutely useless)
 
ManCuBuS said:
Moral of the story is - don't buy a DS3 cos they are cack. (and the bios is absolutely useless)

Er... I think you're a bit late. Half the Core2Duo overclocks in the world are probably on a DS3, it's probably the most widely recommended overclocking motherboard in history. I suspect you've missed something in the BIOS that's causing your overclock to fail, or your PSU is poor or something. It's unlikely to be the DS3. Most likely it's you. ;)
 
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