Highest recommended voltages for 24/7

**hedge** · 10-02-2003, 01:33 PM

What is the highest voltage you guys would recommend running an Intel 2.4c and 2 sticks of HyperX 3500? Right now the cpu is at stock voltages and the ram has 3.15v (need to mode the psu for more). How much higher could I go without instantly killing them?

**hedge** · 10-02-2003, 05:55 PM

Bump...

Anytime fellas, don't be shy.

**hollywood** · 10-02-2003, 05:57 PM

CPU: no higher than 1.6v for 24/7

Memory: You're near max...keep it there

AGP: 1.8v is ok

**Rio71** · 10-02-2003, 06:48 PM

1,70v for the cpu should be ok.
my rigs running 24/7 seti, all northwood p4/c4 @ 1.70v.

jepp, the mem is near max. but you have bh-5 go higher.

**speedstream5621** · 10-02-2003, 07:00 PM

As for the CPU...he has and AMD. They themselves have stated that it is safe to increase the voltage .5v.

It is very different for Intels, however, with their SNDS.

I don't know how much juice I would pump through the RAM though...2.9v is good enough for me.

**Rio71** · 10-02-2003, 07:05 PM

SNDS was only for the B0 stepping.

**speedstream5621** · 10-02-2003, 07:08 PM

Originally posted by Rio71
SNDS was only for the B0 stepping.

What was the max voltage for it anyway? I want to say 1.8v, but for some reason that doesn't sound right...

**neyoung** · 10-02-2003, 07:44 PM

Originally posted by Rio71

jepp, the mem is near max. but you have bh-5 go higher.

Those hyperX sticks are not for sure bh-5. I have 4 sticks of hyperx and none of them are bh-5

**STEvil** · 10-02-2003, 09:44 PM

3.15 for ram will do you fine for 24/7 use.

2.0v is fine for AMD's.

**Semper Fi** · 10-02-2003, 11:52 PM

I have my 2.4c @ 1.725v, my temps @ full load are 41c, does power mater as long as temps stay low?

Ram is also at 3.2, too much for 24/7?

**xDUCK** · 10-03-2003, 12:17 AM

Originally posted by Semper Fi
I have my 2.4c @ 1.725v, my temps @ full load are 41c, does power mater as long as temps stay low?

Ram is also at 3.2, too much for 24/7?

Voltages matter even if your temps are low - for example, even if you're on LN2, putting 2.5v through a CPU (especially a P4) will kill it. No questions asked.

That having been said, 1.725v should be fine (as long as SNDS is no longer a concern with P4's - can anybody with more Intel experience that I confirm this? [I'm more of an AMD guy myself

]).

That RAM is running at pretty much the safe limit. Some people run their ram much higher 24/7 (Macci and his 3.6v HyperX 3000 comes to mind), but it's definately not safe for the vast majority of memory. Of course, these suckers carry lifetime warranties (unless you bought generic RAM

), so it's not THAT big of a concern.

**Semper Fi** · 10-03-2003, 12:36 AM

Not tryin to hijack this thread, but whats a safe agp voltage on a 9800pro with watercooling and a sidepanel 190cfm delta

**saaya** · 10-03-2003, 02:58 AM

didnt some people loose their 9800s with 1.6-1.7v agp voltage?

**Creative** · 10-03-2003, 03:30 AM

Ive run my agp at 1.65 on every board for the past 4-5 months :thumbsup:

Ive also been running my P4Cs at 1.70 for mosly 24/7 and even 1.80 for benching....

**mrzee** · 10-03-2003, 03:58 AM

I run my AMD setup at 1.9vc, 3.2vdimm,2.0 nb,1.8vagp.
Been this way for over a year, never a problem.
9700pro core@1.85, mem@3.3, of course the whole
setup is water cooled.
XP1700 running at 11.5x227@2615mhz, NF7-S w/
vdimm and vdd mods, 2x256 Hyper X 3500.
One of the first things I do with a new setup is
run the vagp up to the maximum.
I've been through 5 9800pros on my main rig,
all due to extreme volt mods , excessive cooling
and hard benching.Thank God for Comp USA's
return policy.

**mrzee** · 10-03-2003, 04:19 AM

Originally posted by hedge
What is the highest voltage you guys would recommend running an Intel 2.4c and 2 sticks of HyperX 3500? Right now the cpu is at stock voltages and the ram has 3.15v (need to mode the psu for more). How much higher could I go without instantly killing them?

If you're on air, like Hollywood says, 1.6vc max for everyday use.
Hyper X loves voltage, unless you have a vdimm mod on your board you can't give it too much. I have ran my Hyper X as high as
3.3v for days at a time without any problems.

Semper Fi, run your vagp at the max, no worries, it won't hurt your 9800pro.

**Narbo** · 10-03-2003, 05:12 AM

The Intel datasheet for the the P4 states no more then 1.7V should ever reach any pin of the CPU. For 24/7 air I would suggest following thier guideline and keep it below 1.7V. After setting a few systems up for friends and my own I find that 95% of the P4C overclock potential can be reached at below 1.6V. Sure you can get another 100-200Mhz from that last little bit but the heat and power dissapation really start to skyrocket.

**hedge** · 10-03-2003, 07:36 AM

Thanks guys. This is just the information I need for when my maze4 shows up. I believe that this chip has something to it. My hyperx may be bh-5, it may not though. Right now it won't go over 240 with 3.15v because it will fail in prime95 and memtest. I am still burning them in to see if there is more.

**FlyingHamster** · 10-05-2003, 05:42 PM

Hi guys,

I use all air cooling with my setup, so what do u think would be a safe agp voltage to set my 9800 to run at 24/7? should I just leave it at 1.5 or increase it? does increasing allow a better OC basically? Oh, and by how many increments in my NF7-S bios does it allow me to increase it?

Thnx in advance..

**Semper Fi** · 10-05-2003, 06:54 PM

Now if I could just work up the balls to vmod the memory on my NF7-S, we'd be in business

**hatemi** · 10-06-2003, 06:56 AM

I wouldn`t recomend uppig the VAGP too much! I`m pretty sure I fried two 9000PROs at 1.8v on my EP-4PDA2+

**mrzee** · 10-06-2003, 07:51 AM

Raising vagp gives better stability when overclocking.
For what it's worth, I run all my rigs at max vagp 24/7.
As I said earlier, I've killed 5 9800 pro's on my benching rig,
due to extreme vmods, excessive cooling and hard benching,
but my other 2 rigs, both overclocked, have run at max vagp for over a year, no problems.

**Silversink** · 10-06-2003, 12:34 PM

Originally posted by Rio71
SNDS was only for the B0 stepping.

Show me proof of that

**FlyingHamster** · 10-06-2003, 01:36 PM

Originally posted by mrzee
Raising vagp gives better stability when overclocking.
For what it's worth, I run all my rigs at max vagp 24/7.
As I said earlier, I've killed 5 9800 pro's on my benching rig,
due extreme vmods, excessive cooling and hard benching,
but my other 2 rigs, both overclocked, have run at max vagp for over a year, no problems.

wut vagp are u running them at 24/7 now?

**mrzee** · 10-06-2003, 03:19 PM

I have two NF7-S boards, 1 rev.1, 1 rev.2,
both are running at 1.8vagp, which is the
maximum on an NF7-S.

The IC7 Max 3 is running at 1.6, which is
the max also.

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