As I see a few P5N-T threads appearing and am having difficulty with my own board I thought I'd make this thread and try and turn it into a general P5N-T overclocking experience thread… or pit of depression, whichever you'd like!
The idea being that everyone share their current specs, settings and clocks so hopefully we can all get a bit more from our setups, particularily with Quads and high FSBs, or at least confirm its limitations…..
My original thread: http://www.tomshardware.co.uk/forum/page-251147_11_0.html
So, I have a Q9550 and the P5N-T (BIOS 1303 I think), 4 sticks of 1066 RAM and 2 8800GTs. Try as I might I cannot get this board remotely stable past 1685 QFSB. At 1650-1685 QFSB (3.5-3.58Ghz) it will complete a 3dmark run but at current settings is not prime95 stable. I did manage to get windows loaded with 1700Mhz QFSB but it crashed soon after. Here are my results so far:
-------------------------100% Stable----------3dMark Run----------Best Boot--------------My Target
CPU--------------------3.4Ghz-----------------3.58Ghz---------------3.4Ghz-----------------3.6-3.8Ghz
Multi--------------------8.5---------------------8.5----------------------8.0
Vcore-------------------1.29v------------------1.3062v----------------1.3062v
N/b Volts---------------1.48v------------------1.62v------------------1.68v
FSB---------------------1600-------------------1685--------------------1700-------------------1700-1800
RAM--------------------1066--------------------842---------------------850
Vdimm-----------------2.11v-------------------2.11v--------------------2.11v
(All other voltages set to auto, all C1E etc turned off. Memory timings are set to 5-5-5-15@1066 or 4-4-4-12 when between 800-900Mhz.)
It seems the N/b volts have to go pretty high on this chipset, in Jdocs' response to my first thread he mentions using more than 1.7v on his northbridge which seems huge.
At my 3.4Ghz clock it would boot with lower n/b volts than 1.48 but I actually found a several hundred point increase in 3dmark06 score when going from 1.42v-1.48v (but none from going any higher) so that's where I left it.
I am not a patient overclocker either and I haven't properly tested for stability at lower volts, so it may be that I could use less on the CPU and the northbridge at the 3.4Ghz clock.
I would really like to get somewhere up near my target speed of 3.6-3.8Ghz as I know the Q9550 should easily be capable of it on good air (TRUE). I shall be trying over this weekend and hopefully will be able to post something positive.
If you have an Asus 780i board then please post your experiences!
The idea being that everyone share their current specs, settings and clocks so hopefully we can all get a bit more from our setups, particularily with Quads and high FSBs, or at least confirm its limitations…..
My original thread: http://www.tomshardware.co.uk/forum/page-251147_11_0.html
So, I have a Q9550 and the P5N-T (BIOS 1303 I think), 4 sticks of 1066 RAM and 2 8800GTs. Try as I might I cannot get this board remotely stable past 1685 QFSB. At 1650-1685 QFSB (3.5-3.58Ghz) it will complete a 3dmark run but at current settings is not prime95 stable. I did manage to get windows loaded with 1700Mhz QFSB but it crashed soon after. Here are my results so far:
-------------------------100% Stable----------3dMark Run----------Best Boot--------------My Target
CPU--------------------3.4Ghz-----------------3.58Ghz---------------3.4Ghz-----------------3.6-3.8Ghz
Multi--------------------8.5---------------------8.5----------------------8.0
Vcore-------------------1.29v------------------1.3062v----------------1.3062v
N/b Volts---------------1.48v------------------1.62v------------------1.68v
FSB---------------------1600-------------------1685--------------------1700-------------------1700-1800
RAM--------------------1066--------------------842---------------------850
Vdimm-----------------2.11v-------------------2.11v--------------------2.11v
(All other voltages set to auto, all C1E etc turned off. Memory timings are set to 5-5-5-15@1066 or 4-4-4-12 when between 800-900Mhz.)
It seems the N/b volts have to go pretty high on this chipset, in Jdocs' response to my first thread he mentions using more than 1.7v on his northbridge which seems huge.
At my 3.4Ghz clock it would boot with lower n/b volts than 1.48 but I actually found a several hundred point increase in 3dmark06 score when going from 1.42v-1.48v (but none from going any higher) so that's where I left it.
I am not a patient overclocker either and I haven't properly tested for stability at lower volts, so it may be that I could use less on the CPU and the northbridge at the 3.4Ghz clock.
I would really like to get somewhere up near my target speed of 3.6-3.8Ghz as I know the Q9550 should easily be capable of it on good air (TRUE). I shall be trying over this weekend and hopefully will be able to post something positive.
If you have an Asus 780i board then please post your experiences!