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Prime95 runs fine for 8hrs, OCCT fails??? - Page 2

post #11 of 27
Large FFT is the stress test under Prime 95.

Large FFT isnt a seprate program lol..
post #12 of 27
Quote:
Originally Posted by fr0stman View Post
Winginit, my RAM are 4x1GB Kingstons-DDR800

I set the RAm @ 667, but CPU-Z recorded the ram speed @ 320Mhz, which defeats the purpose of me buying fast ram i think RAm @ 300Mhz is ultra slow.
So i set the RAM @ 800 (as it is) in BIOS and CPUZ calulated RAM speed @ 440Mhz.

I might try an extra .1V on my ram to 1.95V

this is my RAM Specs:
http://www.kingstonmemory.net.au/dow...0D2N5K2-2G.pdf
The idea would be to underclock your ram now and work on stability.... after you stabilize things, then you can work on bringing your ram speed up.
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post #13 of 27
Thread Starter 
Quote:
Originally Posted by Benny99 View Post
Large FFT is the stress test under Prime 95.

Large FFT isnt a seprate program lol..
lol... that was


Quote:
Originally Posted by winginit View Post
The idea would be to underclock your ram now and work on stability.... after you stabilize things, then you can work on bringing your ram speed up.
Ok ill take your word for it, but im not happy with these ram speeds.
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post #14 of 27
I dont bother with stability anymore cause its not consistent with real world usage at all I can play 8 or 10 hours of crysis and not have a single problem then go and run prime 95 on cold boot and it will last about 4 minutes
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post #15 of 27
Large FFT is the only test i use now combined with memtest and ive been rock solid at 3.7ghz for over 6 months now.
post #16 of 27
fr0stman.... check out this thread on ram dividers:

http://www.overclock.net/amd-memory/...-dividers.html

.... the charts show what ram speeds you'll get with certain CPU multi's, bus speeds and dividers.

As far as stability testing, I use Memtest, Orthos blend (priority 10) and OCCT. My 5000 Black is currently running stable at 3289 MHz.
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post #17 of 27
Thread Starter 
Quote:
Originally Posted by cleverchris View Post
I dont bother with stability anymore cause its not consistent with real world usage at all I can play 8 or 10 hours of crysis and not have a single problem then go and run prime 95 on cold boot and it will last about 4 minutes

hmm...u serious? ur pc crashes with prime95 but can run crysis for ages?
hmm... well im gonna try a few things the boys here suggested if it still crashes im not lowering my CPU power to match Prime95

its a damn 2.6Ghz up to 3.1 ita not a massive hike.

Quote:
Originally Posted by winginit View Post
fr0stman.... check out this thread on ram dividers:

http://www.overclock.net/amd-memory/...-dividers.html

.... the charts show what ram speeds you'll get with certain CPU multi's, bus speeds and dividers.

As far as stability testing, I use Memtest, Orthos blend (priority 10) and OCCT. My 5000 Black is currently running stable at 3289 MHz.
Winginit, ive tried to understand this to no avail
i have my mutlix13 and RAm set to 800 and FSB 239 (lets suppose 240)
the chart says=891 on this config... looks like im bottlenecking my RAM...

fair enough, lets look at 667@x13@239 = 780 - but this isnt the speed of my ram, if u dvide that by 2 u get 390Mhz which is fairly slow true???
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post #18 of 27
CPU-Z will show it as 390 MHz, but you're running DDR2 (which doubles it), that means your ram is at 780 MHz.... close to your stock speed of 800 MHz. The charts show the actual ram speed for each divider.
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post #19 of 27
Thread Starter 
Oh kool ur a legend then... that sums it up for me...
ill set it to 667 in that case.

Do i still up the DrAm voltage as u suggested?
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post #20 of 27
Thread Starter 
Quote:
Originally Posted by MADMAX22 View Post
Use memtest before you even boot into your OS to check yoru ram and see if its even stable enought to try out.
how do you get that to work b4 boot?

This site lists my RAM running @ 5-5-5-15 @ 2V

http://www.hardware.info/productdb/b...B_DDR2800_kit/

Should i trust it? because it says it was tested on an Intel, not an AMD
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