AMD Phenom ii 1090T Cant get ANY stable OC Water cooled

[drsnazzy]

I have been trying to get my 1090t overclocked for some time now. I am running a Corsair H100i Closed loop system on it. I have tried bumping up the Voltage, Nb-cpu, Fsb, Doing just the multiplier and voltage, basically if theres a guide for the 1090t ive read it haha.

No matter what when i stress test the CPU after OC ( my target goal is 4ghz which i know is 100% capable with this cpu) windows always ends up freezing shortly after any test begins. Id say around 5 minutes in length. Ive messed with the ram as well. Set the timings to 9-9-9-24 , Manually set the V at 1.5, tried the XMP 1.3 profile and set it to 1600 and even tried 1333, kinda stumped.

Heres my setup:

CPU: Phenom II 1090t
MEMORY: 8gb (2x 4gb sticks)Corsair GOLD series Vengeance 1600 DDR3
MOBO: ASROCK 990FX Extreme3
PSU: Rosewill 1000w 80+ Bronze
GPU's: 2x EVGA 760

 

[dwatterworth]

Have you checked your chipset and power delivery temperatures? I've read that Asrock recommends a down-draft cooler on this motherboard to get adequate cooling on the power delivery circuitry. That matches up reasonably closely with the 5 minute range for the failed overclock.

There's a big problem with the AMD boards being able to supply the wattage for the top tier CPU's and their 125W+ requirements. It doesn't help that most manufacturers in no way share the wattage support, especially when they market them as overclocking boards.

 

[drsnazzy]

Have you checked your chipset and power delivery temperatures? I've read that Asrock recommends a down-draft cooler on this motherboard to get adequate cooling on the power delivery circuitry. That matches up reasonably closely with the 5 minute range for the failed overclock.

There's a big problem with the AMD boards being able to supply the wattage for the top tier CPU's and their 125W+ requirements. It doesn't help that most manufacturers in no way share the wattage support, especially when they market them as overclocking boards.

I can try that, the whole mobo was on my mining rig rack with plenty of ventilation before and still had the problem. Ill try something more direct as i did notice the NB heatsink gets damn hot. Think it would be worth adding a NB block when i build my custom loop?

 

[dwatterworth]

Definitely keep those chipsets as cool as possible. Those NB blocks are pretty inexpensive and don't add any real resistance or much heat to the loop, so if the tubing setup for the position of it is workable, go for it.

 

[drsnazzy]

Definitely keep those chipsets as cool as possible. Those NB blocks are pretty inexpensive and don't add any real resistance or much heat to the loop, so if the tubing setup for the position of it is workable, go for it.

Just to keep this alive, im going to put some time into OC'ing again this week. Will post after i try doing an OC with better cooling on the mobo.