ASUS P5K-E/WiFi-AP can't handle 1066 RAM

I have been posting like mad over on the ASUS forum ever since I discovered this is a known issue. The numorous threads I have dug up and been posting on are located below. What I am looking to know is has anyone on here who has this mobo specificly been able to get it to run correctly with 1066 ram. It keeps downclocking the proc as well as the ram putting the ram at 800 even when you manually set the BIOS to 1066 for DRAM Freq. I am about to RMA this pig but looking to the hardcores to see if anyone has found a work around.

http://vip.asus.com/forum/topic.aspx?board_id=1&model=P5K-E/WiFi-AP&SLanguage=en-us

also further digging has found there are other ASUS boards with this issue, if you have one please speak up if you found a work around.

I get constant 'overclocking failed' posts from mine even when I run at stock. Hence no overclocking attempts on this rig yet. I'm gonna make an angry call to ASUS one of these days when I'm not putting in 11+ hours at work.

My advice, dump that pos board. I know I'm gonna.

have you tried updating the bios? i've run 2gb of ocz 8800 ram at 1066 in the p5ke before. i applied the maximum recommended voltage and set the latencies to 5-5-5-15.

Did you check the recommended voltage of the RAM? That can sometimes cause instability issues.

One other thing, make sure your power supply is up to running the board + cpu + video card you have.

I have manually set the voltages for the ram which was 2.2v as well as the timings. Since I am not overclocking and using only one 8800GTX the 650W Antec should handle the power. Please school me if you have info I am all ears. For the one who has 1066 ram running on a P5K-E, which proc are you using? Admittedly I am using 1066 ram and a 1333 FSB 2.66 because it was 100 cheaper then it's 1066 counterpart. However I asked well before if this was okay and could the dividers handle the difference and everyone said should be peachy. Does anyone know different? I just don't want to go buying random parts on hunches is all

Motherboard:
http://www.newegg.com/product/product.aspx?Item=N82E16813131196
Ram:
http://www.newegg.com/product/product.aspx?Item=N82E16820145043
Processor:
http://www.newegg.com/product/product.aspx?Item=N82E16819115029
Power Supply:
http://www.newegg.com/product/product.aspx?Item=N82E16817371001
Video Card:
http://www.newegg.com/product/product.aspx?Item=N82E16814127281

i ran an [email protected].

rennyf77 said:

i ran an [email protected].

Click to expand...

and that is an 800 fsb chip by nature chief, that's my point is that this mobo is rated for 1066 and even 1333 but people are only able to get stable using 800fsb parts to start out. Now my big question is is your ram either 1066 or 1333? If it's DDR2-800 that only further proves the point. Your get rock solid numbers sticking to 800 parts which wouldn't be a big deal if they didn't advertise this board as being 800/1066/1333.

My P5KE refuses to overclock [DDR 1000, 2x2Gb Gskill]. It also completely shuts down the computer when stressed (Crysis/Hellgate). The Fortron 600W should be able to handle my E6750 and Radeon 3850 with ease.

I'm tearing my hair out here. Question: Can Bad RAM really just straight up turn my Vista PC right off?

Yes and worse. I am finding that though it looks stable at the desktop the minute you start running a P5K-E board into a heavy game that if you are running a 1333fsb proc (your e6750 is the same chip I'm using and I'll bet if you look in either Everest or PCWizard you'll see it's being downclocked) and ram above DDR2-800 that you have an unstable beeotch on your hands. If your in any power to RMA that board for a refund towards something else DO IT. If your stuck with that board then your next option much like mine is to buy some 800fsb ram and possibly chip. Most I've talked to on the ASUS forums and here are having no probs as long as they stick with 800FSB parts. I have some DDR2-800 ram coming by next week and I'll post back how that goes. Worst case I'll have to downgrade the chip as well.

Definately let us know how it goes. I'd much rather fork out for some 800 DIMMs than install a new MB. Thought I could get a little more headroom out of DDR 1000, not less! Hate to downgrade my 6750 too...

1- 9x333 is better than 8x400, look at a tread here, you should look for the highest fsb at the highest cpu multiplier

2-Ram has a better performance with LOWER latency than with higher frequencies, at anadtech there is an article on the new ASUS Rampage Formula that destroys the Myth of DDR 1066.

3- 1:1 Multiplier makes for better REAL WORLD performance, the only reason to overclocking if you dont have ego issues and needs to make bragging rights to compensate for a small friend.

4- anything above stock voltage skyrockets the power demands AND heat dissipation, degrading ALL components life

So the first step is: find the max stable fsb with the 1:1 memory divider at stock voltages. It will probably be at the 333-400 range, and the memory will be running at DDR2-667/DDR2-800, but (hopefully) with 4-4-4-12 or better timings, and with less than 2,2V !

Sorry to destroy your dreams of 550Mhz fsb, DDR2-1100, 6x multiplier, 7-7-7-21 timings. I have 4Gb of DDR2-1066 running at 668Mhz 4-4-4-12 without any complains: it CAN go further, but its just useless outside the Super-Pi World.

I have the Asus P5K-E, Intel E6850, Thermalright Ultra 120 Extreme, OCZ PC2 8500 Premium @ 2.1v, Asus EN9600GT 512, 250 Gig Seagate 7200.10 S-ATA 300, LG 20 X DVD+/-RW S-ATA, CoolerMaster Real Power Pro RS750 PSU, Ultra XBlaster Mid Tower with 3 120mm Fans, I added a Chipset Fan on the NB, just to help cool it, as it is a passive solution. So Far it's Posted Into BIOS no Problem, recognized the CPU, and set the RAM correctly. What should I be looking for?

Running 4gb of 1066 just fine. Didn't need a workaround or anything special at all.