HTT limit?

[Zak33]

Hi guys,

Anyone found a limit on there Asus mobo?

I have tried lowering multi to 5x and HT to 3x...but still find my CACJE won't boot on anything over 250.

The chip itself will run at 10x250 with 3x HT no trouble, with just a fractional voltage increase, and runs 3d mark 2003 no efforts at that speed (2500mghz)

But I cant get the thing to go beyond the BIOS at anything over that, even dropping my multi to 5x and HT to 2x!!

Ram is set at 266, so that divider aint the problem.

Bit confused.....EXCEPT that I have all SCSI stuff, and the SCSI controller runs on a PCI board.

The bios has a 33.33 option, which I've chosed, but maybe it doesn't lock the PCI slots to that.

Any idea's , greatly appreciated. Not the end of the world, as 2.5mghz is nice But to ge that the ram timing begins at 266, and therefore endas up at 25% higher so only at 333. Was hoping to get this higher, but seems its not to be at the mo.

Could it be the SCSI stuff? Only way to find out is to take it all out I guess and boot off a floppy into summit like Mem test.

[Zak33]

took the SCSI drive out and with a 5x multiplier, it'll go to 275.
But raise the multi to 5.5 or more, it wont boot again....

drop the HTT to 250 and it'll go to 10x multi no trouble.

Maybe a BIOS issue?

[Zak33]

after playing for a while I reckon it's just the natural limit on this chip. I'll tweak hell outta the rest of it, and go with as close to 2500 mghz as I can and get that mem speed back up a tad to save wasting it.

These things are hellish fast , huh? Pifast in 52 seconds is nice

[DR]

What cooler do you have? & how much volts?

What ram too?

[Zak33]

cooler....just ya average huge lump of Akasa alloy. Not a special one, just big. Don't "think" it's a temp issue....its not getting above 40c even after 3d mark 05.
http://www.scan.co.uk/Products/Produ...oductID=171615
Ram is value selelct PC3200 Corsair...probably more important is that it's 4x512, so prolly not quite as fast as 2x1gig. Cas is 2.5, though have tried 3. Have loosened the other timings right out on the ram.

Volts are at 1.53 in BIOS< showing at 1.58 in Asus probe.

Funny thing is that at a really low multi of 5x it will run to HTT of 275. That only gives a cpu speed of 1375. Soon as you go above 5x multi it wont run over 260HTT.

Right now it's at 250, ram set at 266, and with 250 HTT, that's a 25% overclock from stock 200, so ram is also over by 25% making it 333.
HT multiplier is happy at 4x, wont do 5x (no suprise really)

Very fast like this, just would have liked to drop the multi and raise the HTT but it's not to be. It does POST just wont go into XP.

I took the SCSI card out totally and didn't help.

WOnder if it's the sound card in the other PCI slot.

By the way.....X800 XT PE is lovely ..thanks

[nvening]

TBH you should nto be checking temps with 3dmark as its not really a huge test on the cpu, run sp2004 to have a look at temps for sure, but then again that would not stop it booting. But its a much better test for stability anyway, 100% stable is 10 hours imo

[kushtibari]

Try it with 2 sticks of ram and see what your limits are - sometimes funny with 4 sticks for overclocking.

[rainbow]

are we talking wat htt that people have got stable?
if so my board does 300 x 9 to give me 2.7 on my opty 144

[piranha]

Running 4 sticks of value RAM is'nt helping.