Asus P5KC first look

[jeffyjaixx]

Nice.

Did you have to update the bios or did it ship with bios 0701?

[Fr3ak]

I am testing this board right now. Voltage damper exists in the bios, but does not work at all. Same vdroop with it being enabled and disabled.

Vdroop is driving me crazy. 1.4875V set in bios results in 1.448V idle and 1.4V under load...

It seems to clock DDR2 quite good, but I haven't tested these GMH in another board, so I cannot compare their performance.

I can boot into Windows and run 32M with 450MHz, but 32M stable is just 420MHz, no matter what FSB or chipset voltage I set. 420 seems to be rockstable with all voltages to the lowest possible.

I am using a E6750ES for the record.

I am not allowed to do any mods on the board, so I cannot vdroop-mod the board :/

If I have the time, I will make some DDR3 tests when I am done with DDR2.

[jeffyjaixx]

I am testing this board right now. Voltage damper exists in the bios, but does not work at all. Same vdroop with it being enabled and disabled.

Vdroop is driving me crazy. 1.4875V set in bios results in 1.448V idle and 1.4V under load...

It seems to clock DDR2 quite good, but I haven't tested these GMH in another board, so I cannot compare their performance.

I can boot into Windows and run 32M with 450MHz, but 32M stable is just 420MHz, no matter what FSB or chipset voltage I set. 420 seems to be rockstable with all voltages to the lowest possible.

I am using a E6750ES for the record.

I am not allowed to do any mods on the board, so I cannot vdroop-mod the board :/

If I have the time, I will make some DDR3 tests when I am done with DDR2.

I just bought this board as well... vdroop is high as well. 1.60 in bios and 1.50 idle and 1.4 load. Is it my psu?

[Jasy]

Thanks Fr3ak! I'll wait for your next tests

[over@locker886]

I am testing this board right now. Voltage damper exists in the bios, but does not work at all. Same vdroop with it being enabled and disabled.

Vdroop is driving me crazy. 1.4875V set in bios results in 1.448V idle and 1.4V under load...

It seems to clock DDR2 quite good, but I haven't tested these GMH in another board, so I cannot compare their performance.

I can boot into Windows and run 32M with 450MHz, but 32M stable is just 420MHz, no matter what FSB or chipset voltage I set. 420 seems to be rockstable with all voltages to the lowest possible.

I am using a E6750ES for the record.

I am not allowed to do any mods on the board, so I cannot vdroop-mod the board :/

If I have the time, I will make some DDR3 tests when I am done with DDR2.

#20 <-- vdroop mod

[Fr3ak]

#20 <-- vdroop mod

I am not allowed to do any mod on this board, it's not my own board.

[Achill3uS]

i want to know if the voltage damper works on this model.

dont works, like in P5K "V"

Fr3ak:
could you test the mobo with DDR3?
and one more thing with DDR2, in the yellow slots except the 1:1 dont works fine the other memory settings, hell stable clocks like 1000cl4 dont give me signal after saving.. only on the black slots..
this is the only problem what I've find, maybe later will be corrected..

upper was question with Quad CPU's, yes they overclocks fine..

[Fr3ak]

The yellow slots seem to work fine for me, but I will trythe black ones to see if it makes any difference. I am using a X6800 retail now to test max FSB of the board, but it seems to OC worse with that CPU then it did with the E6750ES . . .
I thought the CPU was limiting with the E6750 as just 1 core failed and I could not get it stable above 420MHz FSB no matter what voltage settings of the board I used. 420 runs with everything at lowest values.

What bios are you using btw? I am using the stock bios that came with the board, which is 0502.

[bichi]

Achill3uS,

Can you do me a favor and tell me what the part number of the BIOS chip is?
- or take a closup of that part?

Thanks!

[Fr3ak]

Fr3ak,

Can you do me a favor and tell me what the part number of the BIOS chip is?
- or take a closup of that part?

Thanks!

It says:
25X80VAIZ
0714

[Jasy]

bichi, why do you want to know that?

[Fr3ak]

btw the 701 bios looks like a winner. With the old 502, I could not clock the X6800 higher than 400MHz FSB (dual 32M stable that is). Now 430MHz FSB has just passed, so there is even room for more.

I will do some DDR3 tests, most likely tomorrow. But no heavy OC stuff, just some tests to see if it works ok with the board.

[bichi]

It says:
25X80VAIZ
0714

Many Thanks, Fr3ak!

bichi, why do you want to know that?

Jasy,
- appears some P5K series boards have BIOS chips soldered to board (might be a cost saving trend for future boards)
- part number verifies it's in Winbond's 25X80 serial flash family (8-Pin PDIP (socketed) and the SOIC 208mil (surface mount, soldered)
- if I do decide on a PK5 board with soldered BIOS chip, I know which part to have as backup, in case I pooch a BIOS flash
- (only pooched one BIOS flash in 20yrs, but when it did happen, it was at the absolute wrong time...)

[Fr3ak]

OK I have to admit that he board is not as bad as I originally thought. Surprisingly the vdroop is not as heavy as it seems. The readings of CPU-Z and Asus Probe 2 are lower than what the actual voltage is.
For example:
1.5250V set in bios
1.440V according to the bios hardware monitor
1.408-1.424V CPU-Z load, CPU-Z reads the wrong voltage when idling
1,46V Asus Probe 2 idle
1.42V Asus Probe 2 load
1.487-1.488V idle measured
1.460-1.470V load measured

Too bad I am not allowed to do the pencil mod right now. I bet it would help a lot. But then again the question is why Asus doesnt replace that single resistor. I bet its worth less then a cent. . .

[Jasy]

They don't do it because people instead of buying deluxes(etc.) would buy this one... Not a board for enthusiasts (by now).

If you could do the mod...

[Achill3uS]

OK I have to admit that he board is not as bad as I originally thought. Surprisingly the vdroop is not as heavy as it seems. The readings of CPU-Z and Asus Probe 2 are lower than what the actual voltage is.
For example:
1.5250V set in bios
1.440V according to the bios hardware monitor
1.408-1.424V CPU-Z load, CPU-Z reads the wrong voltage when idling
1,46V Asus Probe 2 idle
1.42V Asus Probe 2 load
1.487-1.488V idle measured
1.460-1.470V load measured

Too bad I am not allowed to do the pencil mod right now. I bet it would help a lot. But then again the question is why Asus doesnt replace that single resistor. I bet its worth less then a cent. . .

try to do the pencil mod, for me it helps much, vdroop is more than bios set 1.40 is real 1.41-1.42v

and yes, I'm using 0701 too.

I'm waiting for your DDR3 tests how your mobo like's them.. "May the Force Be With You"

[Jasy]

Can you oc it with all the vmods to see the maximum fsb?
When you post ddr3 scores, post ddr2 too. Please

[Liquid3D]

What's the best DDR3 overcklock? I've been on the fence and have an order waiting for a X3210 and a P5KC from my friends the Nooks up North, great prices but then they pull the Canadian "Hat trick" on your arse.

1.) Shipping prices all of which add a minumim of $23 ~ $37

2.) must buy insurance $5.50 ~ $11

3.) Even with $37.50 FedEx Priority Air it's five ~ seven days.

Total $410 for X3210 (which might not even work in the board, 775 platform or not) and P5KC for me that's no eat this month and pay half cable bill (I'm disabled and I can add Menatl Disability if I do this)

EDIT: should have got it instead of the Slacker Q6600

[Achill3uS]

Can you oc it with all the vmods to see the maximum fsb?
When you post ddr3 scores, post ddr2 too. Please

the vmod points are not the same as P5K Vanilla or Deluxe, I've find the vdroop & vdimm mods, vcore and vmch still not, but if you are not extreme overclocker you dont need them, I post one result from my maxfsb, easy 530 for the mobo, but the cpu has there fsb wall. Today the P35 boards max fsb is usually more than your cpu.
btw what ddr2 test you want to see?

[Jasy]

That's a good fsb
I just want to know the max you can get with the ddr2 and some superpi 1M/32M.
Comparing this board with the p5k wich one is the best?

edit: When you find all the vmod/reading points, post some images.
Thanks

[dinos22]

i have this board for testing along with corsair PC10000 DDR2 and Corsair 1600MHz CAS7 DDR3 sticks

i've had some quick tests with DDR3 and pushed it to ~850 but seems there is a frequency limit of some sort as it was around 2v with CAS7/8/9

will do a pencil mod as droop reported in CPUz is bad and my E6700 has trouble booting at 4GHz which it should not

will do some decent tests and post some results in a new thread to avoid clutter here

[Liquid3D]

Can't thank you enough for that update, you may hve just saved me many hours of headaches and the money which I don't have to spen on the board.

This is what DIY community should be all about. Of course I do hope your able to correct the problem.

[coldpower27]

Are there any undervolting options for the CPU voltage on this board, this looks like the perfect board for me, and since this is P5K standard with DDR3 support is this 4 phase Power?

[Eldonko]

the vmod points are not the same as P5K Vanilla or Deluxe, I've find the vdroop & vdimm mods, vcore and vmch still not.

The vmods aren’t the same as vanilla? Do you have some vmod pics to share plz?

[Liquid3D]

i have this board for testing along with corsair PC10000 DDR2 and Corsair 1600MHz CAS7 DDR3 sticks

i've had some quick tests with DDR3 and pushed it to ~850 but seems there is a frequency limit of some sort as it was around 2v with CAS7/8/9

will do a pencil mod as droop reported in CPUz is bad and my E6700 has trouble booting at 4GHz which it should not

will do some decent tests and post some results in a new thread to avoid clutter here

When you say 850 do you mean 1700MHz or literally 850MHz