9590 16gb ram setup

The advice the previous poster had about your CPU and RAM is not correct.

The FX-9590's stock clock speeds are 1.4 GHz for idle, 4.7 GHz for multiple-core loads, and 5.0 GHz for single or dual-core loads. You are seeing the CPU function normally as it goes between idle and full speed. Your actual clock speeds aren't going to be exactly 1400 MHz or 5000 MHz since clock generators are usually a few fractions of a MHz off. It sounds like yours is 199.8 MHz or so rather than exactly 200.0 MHz. Bump up the HT reference clock to 1 MHz to 201 in your BIOS if you want to see a top speed that is just a touch over rather than a touch under 5000 MHz.

Maximum attainable memory frequency is HEAVILY dependent on exactly what type of RAM you have. This is true for both Intel and AMD CPUs and has gotten worse over time as supporting ever-higher clock speeds becomes progressively more difficult from a physics perspective. AMD only officially supports up to DDR3-1866 operation with AM3+ CPUs and that's only with a motherboard with two DIMM slots. If your board has four slots, you can only officially run up to DDR3-1600 even if two of the slots are empty due to the extra wiring for the two additional slots adding a load to the memory controller. Having four memory modules puts a much bigger load on the memory controller than having two modules, and having memory modules with 16 chips (dual-ranked modules) puts a bigger load than having a module with eight chips (single-ranked modules.)

Here's the table for official speeds supported by AMD AM3+ processors:
1. Board with two DIMM slots, both filled: DDR3-1866 regardless if the module has one or two ranks
2. Board with four DIMM slots, two filled: DDR3-1600 regardless if the module has one or two ranks
3. Board with four DIMM slots, four filled: DDR3-1600 if all four are single-ranked modules, otherwise DDR3-1333

Also remember that nearly all overclocker memory like your DDR3-2400 defaults to running at DDR3-1333 when you first plug it in. Most boards give the actual clock speed, which for DDR is half of the "rated" speed- your about 666 MHz means DDR3-1333. So you would need to cut the number "in half" to get the proper speed setting. Setting the figure at 2400 MHz would be DDR3-4800 which is absolutely goofy and should definitely cause a BSOD. You will need to go and set the memory to the "proper" higher speed manually. I would set your RAM at the official settings I posted above at first and then go from there. I'd guess based on the size and speed of memory you have that you're probably running four 4 GB single-ranked modules or two 8 GB dual-ranked ones so I'd set the speed at 800 MHz (DDR3-1600) and go from there. You may get away with running at DDR3-1866 but I wouldn't push it as there's little benefit in pushing RAM speeds above about DDR3-1600 on AM3+ CPUs. I'd tighten up the latencies at DDR3-1600 before I'd go for raw clock speed. Leave everything else alone such as the northbridge.

I'd also keep the GPUs as the 7950s are still pretty new and should be more than powerful enough for driving your single 2560x1440 monitor. Your PSU will be just fine.

well at idle and at ballanced windows power option there will be flactuation i agree. but is it? i assumed he refers to high loads and not idle. also temps should be stated at idle and under load. insufficient cooling can easily result on throttling with such cpu.

The instability is the reason it's not officially supported by Asrock.

Asrock site: I think they would have it listed.

AM3+ FX FD8350FRW8KHK 125W Piledriver 4000MHz 2200MHz 2MBx4 8MB C0 All
AM3+ FX FD8320FRW8KHK 125W Piledriver 3500MHz 2200MHz 2MBx4 8MB C0 All
AM3+ FX FD8300WMW8KHK 95W Piledriver 3300MHz 2200MHz 2MBx4 8MB C0 All
AM3+ FX FD8150FRW8KGU(BE) 125W Bulldozer 3600MHz 2200MHz 2MBx4 8MB B2 All
AM3+ FX FD8140WMW8KGU 95W Bulldozer 3200MHz 2200MHz 2MBx4 8MB B2 All
AM3+ FX FD8120FRW8KGU(BE) 125W Bulldozer 3100MHz 2200MHz 2MBx4 8MB B2 All
AM3+ FX FD8120WMW8KGU(BE) 95W Bulldozer 3100MHz 2200MHz 2MBx4 8MB B2 All
AM3+ FX FD8100WMW8KGU(BE) 95W Bulldozer 2800MHz 2000MHz 2MBx4 8MB B2 All
AM3+ FX FD6350FRW6KHK 125W Piledriver 3900MHz 2200MHz 2MBx3 8MB C0 All
AM3+ FX FD6300WMW6KHK 95W Piledriver 3500MHz 2000MHz 2MBx3 8MB C0 All
AM3+ FX FD6200FRW6KGU 125W Bulldozer 3800MHz 2200MHz 2MBx3 8MB B2 All
AM3+ FX FD6130FRW6KGU 125W Bulldozer 3600MHz 2200MHz 2MBx3 8MB B2 All
AM3+ FX FD6120WMW6KGU 95W Bulldozer 3500MHz 2000MHz 2MBx3 8MB B2 All
AM3+ FX FD6100WMW6KGU(BE) 95W Bulldozer 3300MHz 2000MHz 2MBx3 8MB B2 All
AM3+ FX FD4350FRW4KHK 125W Piledriver 4200MHz 2200MHz 2MBx2 8MB C0 All
AM3+ FX FD4320WMW4MHK 95W Piledriver 4000MHz 2000MHz 2MBx2 4MB C0 All
AM3+ FX FD4300WMW4MHK 95W Piledriver 3800MHz 2000MHz 2MBx2 4MB C0 All
AM3+ FX FD4200FRW4KGU 125W Bulldozer 3300MHz 2200MHz 2MBx2 8MB B2 All
AM3+ FX FD4170FRW4KGU(BE) 125W Bulldozer 4200MHz 2200MHz 2MBx2 8MB B2 All
AM3+ FX FD4150WMW4KGU 95W Bulldozer 3900MHz 2000MHz 2MBx2 8MB B2 All
AM3+ FX FD4130FRW4MGU 125W Bulldozer 3800MHz 2000MHz 2MBx2 4MB B2 All
AM3+ FX FD4100WMW4KGU(BE) 95W Bulldozer 3600MHz 2000MHz 2MBx2 8MB B2 All

READ THE NOTE on that site.

Note: please treat this list as a guide; while we strive to maintain accuracy for all our components we cannot guarantee that our data is 100% accurate.

I suggest get rid of that space heater of a cpu and that motherboard and get a better system for your money. For the money wasted on inferior components, you could have purchased a far better setup, that used less power.

This would have been about the same cost and far superior, even if you were to never overclock it.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($339.98 @ SuperBiiz)
Motherboard: ASRock Z97 Extreme3 ATX LGA1150 Motherboard ($119.99 @ Newegg)
Total: $459.97
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-23 16:09 EDT-0400

go through this. it is rather interesting http://www.kitguru.net/components/cpu/zardon/amd-fx9590-5ghz-review-w-gigabyte-990fxa-ud5/ (proper hardware but still some tweaking had to be done, afterall).

I made my suggestion, enjoy your overpriced space heater. It should keep you warm in the winter. Not even AMD fans recommend that cpu. Most say pick up an FX 8350 and clock it yourself. An FX 9590 just barely beats a 4770k in certain multithreaded benchmarks. It won't beat a 4970k, that is another 500mhz faster.

well, since you have a very good psu and capable cooling, switching mobo can be an option, if you want to give your build a second chance.also as said, switching to fx8350 and overclock it is another!

You don't need the six core Intel. The quad i7's handle 8 threads and are better chips. If you insist on staying with AMD, I would go with an FX 8350 and clock it yourself. If not comfortable with overlocking, go with the Asrock 990fx extreme9.