Phenom II X4 805

[Arkaign]

Hi, just upgraded from an overclocked E5200 to an X4 805 on a Gigabyte UD4P 790X Mobo. Have 500W Antec, 4GB DDR2-800 4-4-4-15, any advice on overclocking? Have a 120mm air cooling from Cooler Master.

 

[phantom404]

I have the 810 but I really haven't tried to work with it. I did the auto detect on the AMD overclocking tool and it didn't move it up much at all. I really haven't tried to mess with it manually through the bios but I doubt I'll get far.

 

[veri745]

Increase your Vcore as much as you feel comfortable, and then just start upping the bus freq. until it won't boot and back it down a bit.

The sticky on this topic is pretty good.

 

[Arkaign]

Originally posted by: veri745
Increase your Vcore as much as you feel comfortable, and then just start upping the bus freq. until it won't boot and back it down a bit.

The sticky on this topic is pretty good.

Thanks, I'll start messing around. I looked for a sticky related to PhII overclocking, but haven't seen anything. I searched for Phenom II 805, 810, and so on, but the 800 series is sort of rare I guess. Most people seem to go for the 700 triple-cores, or the full-fledged 900 series. I got this combo at Fry's for ~$250, just hoping that it will turn out decent. So far, it seems a lot more sluggish than my old E5200 in Windows use, but then again I was running about 3.6Ghz on the 5200, and I'm still stock 2.5Ghz on the PHII for now.

I was really hoping someone had some direct experience with a 800 series overclock on the 790X chipset, and better yet, someone with this UD4P mobo. The BE PhII's have unlocked multis, so overclock on those is a lot easier. I haven't overclocked an AMD for a while I was one of the unlucky few who got a bum Octy 165 that wouldn't do more than 2.1Ghz or so, and that was on an DFI Lanparty NF4-SLI mobo that was supposed to be awesome. Same exact build that a friend did and hit 2.8Ghz. I guess the YMMV thing is always true

 

[veri745]

There is effectively no different between overclocking an Athlon 64 X2 and a Phenom/Phenom II. Both had integrated memory controllers.

 

[richierich1212]

Try ACC Hybrid Auto, you may get your L3 cache unlocked.

 

[cusideabelincoln]

Just look for people who've overcloked a Phenom 710, 920, or any other non-BE processor. It'll be the same process for overclocking your 805.

 

[Arkaign]

Well, after a few days of playing with it, I pretty much think Phenom II sucks balls. Now at 3.4Ghz with tight ram timings, but SATA performance is still about 15% slower than with the old setup, and general Windows use is sluggish. Guess I'll sell this off and pony up for the real deal, either Q9000 series or i7.

 

[richierich1212]

wow so you are comparing an 805 with Q9000 or i7??? LOL

Why did you even buy the 805 knowing it didn't even have as much L3 cache?

 

[richierich1212]

Have you even tried overclocking the NB?

 

[Arkaign]

Originally posted by: richierich1212
Have you even tried overclocking the NB?

I've got the cpu overclocked from 2.5Ghz to 3.4Ghz, and have the ratios set to run the ram as close to 800mhz as possible (with 4-4-4-12 1T), and the HT as close to 2ghz as possible.

 

[Arkaign]

Originally posted by: richierich1212
wow so you are comparing an 805 with Q9000 or i7??? LOL

Why did you even buy the 805 knowing it didn't even have as much L3 cache?

I guess I should have paid closer attention. The packaging at Fry's said 6MB L2, but it has 4MB, and I wasn't too familiar with the PhII. Just thought it should be at least equal to the old E5200 w/2MB.

 

[richierich1212]

You need to overclock the NB to @ least 2400-2600MHz to see very nice results. Try it.

 

[richierich1212]

And what software are you using to compare systems? Which OS?

 

[Arkaign]

Originally posted by: richierich1212
You need to overclock the NB to @ least 2400-2600MHz to see very nice results. Try it.

Thanks!

Using XP Pro SP3 and Vista Ult SP2. Part of my problem is probably that I don't use any software that can really take advantage of QC.

 

[richierich1212]

What mobo are you using?

Maybe you should try out Windows 7 RC. It utilizes memory and quad-core processors more efficiently than Vista.

 

[Arkaign]

Originally posted by: richierich1212
What mobo are you using?

Maybe you should try out Windows 7 RC. It utilizes memory and quad-core processors more efficiently than Vista.

I'm using the Gigabyte MX790X-UD4P. I'll definitely jump on Win7 when it hits OEM, my brother has an install of it and it flies.

Got XP running pretty good with the new setup, but SATA performance is still pretty slow.

 

[richierich1212]

Have you tried running ACC-Hybrid-Auto in the BIOS to try to unlock extra 2MB of L3 cache?

 

[reallyscrued]

I've got the same mobo. Make sure you have F5 bios. Also make sure you are not using the GSATA ports unless you are RAIDing, I can't get those to work at decent speeds, but I haven't really tinkered with it that much. Run HDTune real quick if you think general windows is sluggish. I'm not sure how that's even possible unless your hard drive or the SATA controller is slowing you down. Can people tell the difference between 2.5 ghz and 3.0 ghz in general windows tasks?

This mobo also sets HT (i think?) at 2 Ghz when it should be 2.5. There's so many damn settings in the BIOS that I can't remember everything of what you're supposed to do, but read up on that a little and find the safe way to set it at 2.5 while keeping all the dividers in check. (Someone correct me if I'm wrong here.)

 

[richierich1212]

HT needs to be around 2000-2200MHz for stability

 

[Arkaign]

Just ran HDTune 2.55 on the Vista install :

Minimum 2.6 MB/sec
Maximum 62.1 MB/sec
Average 50.8 MB/sec
Access Time 18.7 ms
Burst Rate 133.6 MB/sec
CPU Usage 1.1%

 

[richierich1212]

HD Tune: WDC WD5000AAKS-07A7B0 Benchmark

Transfer Rate Minimum : 35.9 MB/sec
Transfer Rate Maximum : 94.7 MB/sec
Transfer Rate Average : 72.8 MB/sec
Access Time : 17.3 ms
Burst Rate : 123.5 MB/sec
CPU Usage : -1.0%

Windows 7 64-bit


Your minimum seems really messed up. You sure your HD isn't dying?

 

[theAnimal]

Originally posted by: richierich1212
Your minimum seems really messed up.

Ditto for your CPU usage.

 

[formulav8]

You need to check and make sure that DMA is checked and enabled for your hd. Running in PIO will Kill hd and cpu performance since the hd has to go through the cpu instead of bypassing the cpu and going directly to memory.

That minimum is screwy. If DMA is checked AND Enabled, you may have a bad hd or something.


Jason