2.6 from newegg won't overclock for ***t

[lxie123]

My bad, my is7 bios is 16, i was thinking of ic7.


Just got a fry's cpu today with sl6ws stepping but it was packed 1 week earlier 10/1/2003

and it oc to 3.25 gigs.
Still needs 1.675 volts to pass prime95. Not sure why I always need such high voltage, with this voltage my temps get to 65~70 under load.
I bumped my agp voltage to 1.6 like duvie suggested, made no difference.


I'm using stock hsf.

 

[lxie123]

My bad, my is7 bios is 16, i was thinking of ic7.


Just got a fry's cpu today with sl6ws stepping but it was packed 1 week earlier 10/1/2003

and it oc to 3.25 gigs.
Still needs 1.675 volts to pass prime95. Not sure why I always need such high voltage, with this voltage my temps get to 65~70 under load.
I bumped my agp voltage to 1.6 like duvie suggested, made no difference.


I'm using stock hsf.

 

[Duvie]

Those temp are a bit too high even for an abit mobo...

What is your power supply like??? Also you know that many of the Abit mobos undervolt so that 1.675v bios is actually like 1.63-1.65v actual.....

Also what brand and speed are your memory sticks and what vdimm are they set at and what cas timings???

It seems funny the wall on that chip is right at the magic number of 250fsb!!! A well known wall for many...You may wish to look at the northbridge cooling like i need to. You would be surprised how that can hold you back. These chipsets run a lot hotter then the old i845d chipsets.

 

[lxie123]

I got that famous buffalo ram pc3700.. bh-5. Running them @ 2.8 vdimm, highest i can set on the is7.


They will do up to 210 [1:1 or 5:4] ratio at 2.8vdimm with tight ass timing, but won't run pass 215 no matter how much i relax the timings.. ( 3-4-4-8)

It did 2-2-2-5 turbo @ up to 210 fsb. when I tested 1:1

The ram past 18 hour prime 95 when i ran it with a 2.6c stock speed 1:1 2-2-2-5 turbo @ 200 mhz



PSU is a antec 400W True power

 

[Duvie]

Personally I am starting to think these abit mobos suck!!! I just tested my system and with a 3:2 ratio and same 2,7,3,3 timings vs 5:4 ratio with 2,7,3,3 timings I was a whopping 1.4% slower in my tmpgenc test file though I was giving up 700mb in sandra mem and 80mhz ddr speed...Something ain't right with these mobos!!!! I mean that is 400mhzddr cas 2,7,3,3 vs 333mhzddr cas 2,7,3,3....It should be closer to 5%. from what I use to see in the past.

I agree when these chips stop at cas 2,7,3,3 stable you would think you would have some range at 2.5 or cas 3 but instead nothing and you are forced then to change the ratio....cas 2.5 or cas 3 means absolutely nothing for me even at 1:1 and around the 210-215 range....

I know these boards vdimm is too low and the susequent vtt is too low and hence the reason ppl buy max3's or do the volt mod. I think the ram and the northbridge are being underpowered....

I am going to start a thread to show some of the anamolies...

 

[oldfart]

Originally posted by: Duvie
Personally I am starting to think these abit mobos suck!!! I just tested my system and with a 3:2 ratio and same 2,7,3,3 timings vs 5:4 ratio with 2,7,3,3 timings I was a whopping 1.4% slower in my tmpgenc test file though I was giving up 700mb in sandra mem and 80mhz ddr speed...Something ain't right with these mobos!!!! I mean that is 400mhzddr cas 2,7,3,3 vs 333mhzddr cas 2,7,3,3....It should be closer to 5%. from what I use to see in the past.

I agree when these chips stop at cas 2,7,3,3 stable you would think you would have some range at 2.5 or cas 3 but instead nothing and you are forced then to change the ratio....cas 2.5 or cas 3 means absolutely nothing for me even at 1:1 and around the 210-215 range....

I know these boards vdimm is too low and the susequent vtt is too low and hence the reason ppl buy max3's or do the volt mod. I think the ram and the northbridge are being underpowered....

I am going to start a thread to show some of the anamolies...

The deal is, mem BW does not make as much difference as people think. I've been trying to pound this into peoples heads for awhile, but no one listens! People get too wrapped up in the meaningless SiSoft mem benches. For many applications like TMPGEnc, its all about CPU speed. Mem BW just does not matter that much. There are some applications that it does matter more, but is never more than a few %. When you overclock and get up in the FSB, it matters even less.

Its amazing what happens when people actually test it for themselves using real applications instead of SiSoft.

 

[jpetermann]

Its amazing what happens when people actually test it for themselves using real applications instead of SiSoft.

Couldn't have said it better! <-----And this comes from a guy that runs high fsb and 1:1 (280+). I am actually hoping to get some good 3500 bh-5 based ram to test this on my own board again.

 

[Duvie]

I need to swicth to bios ver14 cause abit has fvcked up something....tell me how 1:1 and ram at 440mhz memtested and posted at GAT turbo but no other timings with 5:4 or 3:2 will now post even though memory is clocked as low as 120mhz ddr less....

My Geil PC3500 sticks post all the way to 472mhz ddr cas 2.5,7,3,3 then it stops cas 3 doesn't make a difference though at this point it undoubtedly has to be need for more vdimm....

I can do 2,5,2,2 5:4 at 250mhz (memtested) but cant do any GAT settings even if memory was set to cas3...


Also when using 3:2 versus 5:4 both now at cas 2,5,2,2 they get less then 1% difference and with all respects oldfart I tested at enough speeds to see that in fact even tmpgenc should have been effected by 600mb less of sissoft and 66mhz less of ddr a bit more then 1%....

I will try older bios cause something is hosed...I think I may try the asus mobo next!!!

 

[Duvie]

Just as I thought...Flashing back to Bios version 14 I was now able to run GAT turbo with 5:4 and 3:2 settings though F1 or steet racer was still unattainble. Turbo was only attainable by disabling the CPC which then resulted in worse results then if no GAT and CPC enabled.

I didn't see if I could do any better the the (233fsb) 466mhz ddr on a 1:1 with my geil ultras ae memtest stable at now becuase it is clear after testing for it to be better then my performance at 3.2ghz I would need to be 3.1ghz or more for multimedia apps...

Also funny thing is I can run 2,5,2,2 at 5:4 for 394mhz ddr but it actually scores worse in sissoft and in a couple of my test then leaving it at 2,7,3,3....

I tell you abit definitely has something all goofy...