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[TRINITY APU] AMD Socket FM2 - Motherboard Discussion & Gallery - Page 32

post #311 of 774
Quote:
Originally Posted by akromatic View Post

how do i OC the memory on this thing? while underclocking CPU
Quote:
Originally Posted by akromatic View Post

hmm i dont get the maths behind that. where is the multipliers and how is it calculated?
i've tried tweaking with the unknown..... i've boosted bclk and i've tweaked around by selecting a higher speed ram but both would result in no post

Default reference clock is 100MHz, the multiplier for stock clocks is 34 (34*100=3.4GHz). If your RAM speed is set to 1866Hz, your base clock (100MHz) is being multiplied by 18.66.
So if you wanted to OC the RAM speed (keeping the 1866MHz divider) and keep your cpu speed at stock clock then you can adjust your reference clock and cpu modifier so multiplied together they will equal 3.4GHz and your ram speed would be your new reference clock mulitplied by 18.66.

For example: 106MHz (ref clock) * 32 (cpu multiplier) = 3.392Ghz CPU speed (approximatley stock) and 106MHz * 18.66 = 1978MHz RAM frequency (overclocked RAM)

So in this instance a mulitplier less than 32 will be underclocking the CPU


You will also need to drop the northbridge multiplier else you're overclocking it when you up the reference clock
Edited by MustardCutter - 12/20/12 at 9:13am
post #312 of 774
This has been my experience with the ASRock FM2 mini-ITX: http://www.overclock.net/t/1337304/asrock-fm2a75m-itx-motherboard-fire/20#post_18869023 (not good)
post #313 of 774
Quote:
Originally Posted by DougieFresh View Post

This has been my experience with the ASRock FM2 mini-ITX: http://www.overclock.net/t/1337304/asrock-fm2a75m-itx-motherboard-fire/20#post_18869023 (not good)

I've emailed ASRock asking for damage compensation. I have wasted 56€ so far trying to RMA this motherboard (and I still have it at home). Pathetic.
   
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post #314 of 774
Quote:
Originally Posted by Artikbot View Post

I've emailed ASRock asking for damage compensation. I have wasted 56€ so far trying to RMA this motherboard (and I still have it at home). Pathetic.

When all is said and done I'll be looking at probably in excess of US$1000 in loss due to customer returns, shipping back and forth, replacing power boards, stock I can't sell, etc.

I am not totally in this for the money (wrong business if you want to make money). I am one guy. It's more about the fun of getting cool cases, play with stuff and helping people build mini HTPCs, etc. so that's a pretty crushing blow, especially this time of year. But, c'est la vie it's part of life trying to start a new business, right?

I can RMA the boards to ASRock but I'll just get new boards not my money back -- no one is going to buy them. Their response to me was to update the BIOS smile.gif.
Edited by DougieFresh - 12/20/12 at 12:46pm
post #315 of 774
Quote:
Originally Posted by DougieFresh View Post

When all is said and done I'll be looking at probably in excess of US$1000 in loss due to customer returns, shipping back and forth, replacing power boards, stock I can't sell, etc.

JESUS CHRIST!!

HAve you emailed them?

The most complaints they get, the more likely they are to respond.
   
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post #316 of 774
Quote:
Originally Posted by Artikbot View Post

JESUS CHRIST!!
HAve you emailed them?
The most complaints they get, the more likely they are to respond.

Wild Asrock appeared!!

DougieFresh Go!!

Use facebook attack!!

Its super effective
post #317 of 774
Quote:
Originally Posted by akromatic View Post

update: I've been experimenting with cooling options with different fan configurations
120mm intake = damn hot especially on the rear IO, its hot enough to cook you from touching it. but everywhere else is cold
120mm intake + 40mm exhaust = improvement but still fairly hot
120mm exhaust = every where cool but the metal exhaust grill is a scorcher, i still need a method to measure the VRM sinks as there is no air pushing onto it this way
note, those fans mentioned are the only fans in the system and the 120mm fan is the CPU cooling fan for the xigmatek preaton HSF

update: 120mm exhaust + 50mm intake = best results so far, boosted about 1k CPU score in 3dmark vantage with the same clocks as before

currently GPU is clocked at 1013mhz but scores arnt really improving from stock, im guessing its starved of ram
post #318 of 774
Quote:
Originally Posted by akromatic View Post

currently GPU is clocked at 1013mhz but scores arnt really improving from stock, im guessing its starved of ram

That's processor throttling.

I get the best results at 3.4GHz with 3.6GHz Turbo at 1.3V, 943MHz GPU with stock VNB. Anything higher than that causes the system to throttle.
Edited by Artikbot - 12/21/12 at 1:21am
   
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post #319 of 774
Quote:
Originally Posted by Artikbot View Post

That's processor throttling.
I get the best results at 3.4GHz with 3.6GHz Turbo at 1.3V, 943MHz GPU with stock VNB. Anything higher than that causes the system to throttle.

actually its the GPU scores that isnt improving, CPU increased by 1k+

im quite surprised how a little extra cooling helped.
Edited by akromatic - 12/21/12 at 2:38am
post #320 of 774
Quote:
Originally Posted by akromatic View Post

actually its the GPU scores that isnt improving, CPU increased by 1k+
im quite surprised how a little extra cooling helped.

Hm. In taht case... What memory settings are you running? It could be bandwidth starved.
   
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