P4P800 Will not boot with memory divider

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Hi, I just got some Hynix DDR500 from someone. It's actually made by Hynix and is only available in Korea. It's a 2x512MB kit.

Whenever I set a memory divider in the BIOS, it will not boot. I reached 285 FSB 3:2 with my generic Nanya PC3200 1x512 before but with this one I can at most reach 265 1:1. It's really weird, no matter how low the RAM speed it just won't start (or POST) with a divider. I have 2.85V vdimm which is the same that the person who sold it to me used to get to 284 5:4 on an ABIT board with the same processor (a P4 2.4C).

The P4 is on stock voltage and at 265 1:1, it's rock solid. My board is an Asus P4P800 Deluxe. Any ideas? I've tried enabling and disabling Asus' version of PAT, I disabled Turbo, I adjusted voltages, nothing works if I put a memory divider.

Usually when I turn on my computer, the CPU fan starts at full speed and then throttles down. But when I try to set a memory divider, it doesn't do that. Which is weird, it seems to imply that the BIOS or whatever isn't loading at all. I basically have to turn it off, wait 15 seconds, and turn it on again (at which point it will have reset itself to stock settings as is normal following a "failed overclock")

Any ideas? Input much appreciated.

 

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Still wondering. Putting it in single channel or even removing a DIMM doesn't help either. This is really weird.

 

[Ollin]

I one question for you.....I have a p4p800 SE and I can't find the ram:cpu ratio in the bios where can i change it because i wanna put it at 3:2 because my ram sucks and it can't keep up with my cpu because right now its a 225 1:1 and i want to go higher

 

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I one question for you.....I have a p4p800 SE and I can't find the ram:cpu ratio in the bios where can i change it because i wanna put it at 3:2 because my ram sucks and it can't keep up with my cpu because right now its a 225 1:1 and i want to go higher

I've never seen anything other than my P4P800 DLX but it's in "Jumperfree->Memory Speed/Frequency (or something like that) and 400 MHz=1:1, 320=5:4 and 266=3:2. Took me quite a few failed boots to figure that one out

 

[Ollin]

Nope it doesn't boot damn

I tried to get it higher than 3.4ghz I guess its because my ram. The only stable boot is 3.4ghz
@225mhz which runs at 1:1.

 

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Nope it doesn't boot damn

I tried to get it higher than 3.4ghz I guess its because my ram. The only stable boot is 3.4ghz
@225mhz which runs at 1:1.

Weird. I ran it perfectly at 285 FSB 3:2 (3.4GHz). It was very nice and stable, but then I got new PC4000 RAM and though it'll run at 267FSB (3.2 GHz) it just won't work with a memory divider! I still get about the same performance though.