New P4P800 -- 245fsb some questions...

Hey all.

I finally got around to upgrading from my old P3 tualatin system.

Got a P4 2.4C and the P4P800 mb last week.

Been running ok, but the cheesy generic 512mb PC3200
chip I got dont like running much over 210fsb at the 1:1 setting.

So today I got all crazy and set the mem to 5:4 ratio and
cranked up the fsb to 245 so my CPU was at 2940mhz and
the memory at 196 2.5-2-2-6.
Left CPU volts at default, and put mem at 2.65.

Seems to be fine with that. Passed Memtest86 fine, and
seems ok in windows. (98SE)

Idle temps according to the Asus probe about 33c and only
47c full load running prime95.

Am I risking that Northwood sudden death syndrome with
these speeds or am I ok since it is doing it at default core
voltage ? (1.568v according to the probe...)

I turned it back down to 1:1 at 200mhz cause I got scardt...

just keep your vcore below 1.7
have been running my 2.6C at 3.3 since a week after i got it

ya one of the biggest factors SNDS was the voltage going above 1.7v and cooling the chip

Cool. So it looks like I got a good CPU then.

FPO/Batch #L321A696 -- SL6WF

So if this thing boots and runs at 3g at default voltage I should
be safe from the death thingy ?

Now I am mad because I need to buy some PC4000 memory !!!

Doh !

great stuff

gonna try this on my comp when I get home from work

Hi,

You can run it @3.0GHz w/default voltage and 5:4 divider. You needn' t PC 4000 if its enough. But if your goal is 3.6GHz with a little increase in Vcore (1.65 perhaps) than you may need PC 4000.

Regards

My goal with the ram upgrade would be to get it running
at a 1:1 ratio dual channel at the 251fsb I got now.

3012mhz seems plenty fast for playing UT. haw

Well I'm at 251FSB right now and I've got the good BH5 HyperX stuff but it won't post at 1:1 with the loosest timings and 2.85Vdimm. Seems like the board needs a Volt mod to do this and I don't think it's worth it (risking the board and my RAM) compared to my current 5:4 with the tightest timings...

Lancelot said:

Well I'm at 251FSB right now and I've got the good BH5 HyperX stuff but it won't post at 1:1 with the loosest timings and 2.85Vdimm. Seems like the board needs a Volt mod to do this and I don't think it's worth it (risking the board and my RAM) compared to my current 5:4 with the tightest timings...

Click to expand...

The volt mod for the Asus boards are easy and if you don't want to solder then use SMD grabbers. Just take your memory out when adjusting the VR during installation. There is a sticky at Intel Asus boards.

The BH-5 LOVE 3.2+volts!

Using Mushkin lvl. 2 pc3200 my cpu is @ 295 fsb @ default voltage. vdimm is 2.85, 2-2-2-5, 3:2