Epox 8RDA+ won't POST with memory clock set to 200Mhz....

Post by **FlyingPenguin** » Sat Nov 15, 2003 10:52 pm

Anyone had any experience increasing the default memory clock on this board?

This board supports a seperate clock for the FSB and memory bus. I have PC3200 in there so it SHOULD run at 200 Mhz (DDR400). Locks on POST if I set it to 200 Mhz manually or us the "by SPD" setting.

I've also tried it at 166 Mhz with no joy, but it's rock solid at 133.

The pain is, it's not like it's easy to experiment with this mobo. When it fails to POST I have to reset CMOS - I can't get into BIOS. Then I have to setup BIOS manually again. Tried a few times and gave up.

Kind of annoying me. It's not an overclock - I'm running the memory at the spped it's supposed to run at. It's good memory (forget which brand at the moment, but it was the good stuff).

I know there probably won't be that much of a perfromance difference, but I feel a little cheated. I upgraded the ram a while back from PC2100 just to be able to do this.

PreDatoR · Post by **PreDatoR** » Sun Nov 16, 2003 12:35 am

What revision is the board. If its 1.1 yer screwed... might get lucky and it will do 195 or so but unless its a rev 2.x its not going to do 200 without some mods to the chipset voltage to get it there... Also rip off that passive heatsink and at least put on some AS9999 whatever the heck the latest one is lol... that tape they put on there is rather pathetic.

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Sun Nov 16, 2003 1:02 am

And mine posts at 190 FSB I haven't been able to get it higher than that, and I've not looked deep enough into the bios to see if the Ram timings can be bumped up mhz by mhz or if it is just that 120% blah blah blah.. I've never been able to get that to work very well. eGo

blackhawk · Post by **blackhawk** » Sun Nov 16, 2003 7:32 am

My 1.1 runs great at 200 fsb with 2700, just lucky I guess?

My 2400 is at 200 x 11 with 1.6v

Post by **FlyingPenguin** » Sun Nov 16, 2003 9:14 am

Pred you're talking about FSB, not Ram clock speed right? I'm not overclocking the FSB, just increasing the ram clock.

dadx2mj · Post by **dadx2mj** » Sun Nov 16, 2003 10:43 am

I remember reading that there was a problem running ram out of sync with the FSB on the earlier boards. Maybe a bios upgrade will help. Also if you set something in bios and it wont post hit the reset button and hold down the insert key while it is booting this should get you into bios, at least it has worked for me.

wvjohn · Post by **wvjohn** » Sun Nov 16, 2003 11:24 am

i have a 1.1 and have run it up to 210 fsb with the voltage on the ram upped to the setting beyond 2.77 or whatever

my current setup is 1 gig of 3200 but it's 3 sticks and it is not happy above about 192 - thisis straight fsb overclocking not just the memory

you will have to increase the voltage on the memory to get the higher speed

blackhawk · Post by **blackhawk** » Thu Nov 27, 2003 9:46 pm

My post above said no problems but I've got myself some new Buffalo ch5 3200 and now I cant run it at stock speed.

My old setup was 10.5/11.0 x 200fsb on a 2400 tbred(stock is 133) and the 2700 ran at 166 spd. My buffalo setup was spd(200) with the cpu the same. Boots but freezes or blue screens. Tried stock 133 cpu & ram even, plus one stick and non dual channel.

also ran it on my kt400 with same problems in any intensive operations, ran memtest and passed fine though

I'm scratching my head about getting full use of my new ram

Now I'm back with the 2700 dual channel at 166 working fine.

Post by **FlyingPenguin** » Fri Nov 28, 2003 8:00 am

I've noticed stability issues with dual channel - sometimes it won't initially POST with dual channel until you first use one stick. Try it with one stick first, see if you can get it to POST stable, then add the 2nd stick.

BillyGoat · Post by **BillyGoat** » Fri Nov 28, 2003 1:18 pm

if you can get it to post with 1 stick, but not 2 i would suggest uping the voltage to the ram slots a bump or two

blackhawk · Post by **blackhawk** » Sat Nov 29, 2003 9:20 pm

Finally rolled up the sleeves and decided to switch cpus last nite, the 2400 T'bred out and the Barton 2800 in(I've got an 8045 too so the whole mb comes out with it).

That sparked up fine and ran it to 11 x 200(same as the 2400 tbred!) and it ran fine so thought I'd give the buffalo a try again. I google'd the ch5 and came across a post about setting the mem to 10 3 3 2.5 rather than 6 3 3 2.5 and its running great at 200mz, 2.63v.

Not sure if thats what stabilized it or not.

Love the mb, might try to find another to replace the 8k9a2+ and another cheap barton.

Pretty nice combo now with the 9800 pro at 5660-2k3 and 17200 2k1.

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Epox 8RDA+ won't POST with memory clock set to 200Mhz....

Epox 8RDA+ won't POST with memory clock set to 200Mhz....

I've got a 2.x