Can someone confirm my power supply is up the creek?!

[dylan0451]

Hey Guys,

finally got my system stable, specs below:

E7200 duo 9.5 multi 395fsb - 3.7ghz - 1.3250v bios, 1.295v cpu-z, 1.280v cpu-z load

P35-DS3L - +0.1 all voltage bar mch which is +0.2

2x2gb budget ram @[email protected]

gigabyte 9600gt OC'd via rivetuner - core 800, memory 2150

2x seagate barracuda raid0 via pci card

budget 5.1 pci souncard

2x optical drives, 1x 140mm fan on a fan controller, 4x 120mm fans, 1x 80mm fan + 1x 40mm fan

1x cold cathode

Power supply calculator eXtreme Power Supply Calculator Lite v2.5PC_World - Power SuppliesProduct Details :: evilgaming.co.uk_

be recommended?

cheers for all the replies!

[Merman]

Re: Can someone confirm my power supply is up the creek?!

While a good power supply is essential why are you not talking about your case and what the different temps are??? CPU and System. Are you using CPUID Hardware Monitor??? If not get it.

Just for an example if CPU temps are very high the cooler may have to be re-seated. Though as you are aware you may need a better PSU not matter what. Take a look at and give accurate infomation about it.

The second link in your post does not work for me.

[dylan0451]

Re: Can someone confirm my power supply is up the creek?!

While a good power supply is essential why are you not talking about your case and what the different temps are??? CPU and System. Are you using CPUID Hardware Monitor??? If not get it.

Just for an example if CPU temps are very high the cooler may have to be re-seated. Though as you are aware you may need a better PSU not matter what. Take a look at and give accurate infomation about it.

The second link in your post does not work for me.

can't get the link to work, its a PC power + cooling silencer 750

the case has 2 120mm fans in the side panel running @ 7v, 1 140mm fan at the front on a fan controller and the rear is a 120mm running at 12v

cpu cooler is a scythe ninja with a 120mm fan running at 12v

with a 50% OC @ 3.7 GHz cpu temps never go above 55-59c at full load with occt/othos using realtemp to monitor (calibrated) and idle at about 32-33c

NB never seems to go much over 30-35c

there may be an issue that the exhaust fan + cpu cooler are working so well in a push/pull config that the psu air intake is unable to draw much air and hence overheating... though the problem is compounded i guess by the fact its operating at 85% ish

[svcglobal]

Re: Can someone confirm my power supply is up the creek?!

Wow! What you are doing with your E7200? 1.3250v?
Typo error or are you trying to suicide your CPU?

Bring down that BIOS voltage to 1.27, max. Probably your issue is related to temperature shutdown.

[Merman]

Re: Can someone confirm my power supply is up the creek?!

try this

Product Details :: evilgaming.co.uk_

the case has 2 120mm fans in the side panel running @ 7v, 1 140mm fan at the front on a fan controller and the rear is a 120mm running at 120mm.

cpu cooler iis a scythe ninja with a 120mm fan running at 12v

cpu temps never go above 55-59c at full load with occt/othos using realtemp to monitor (calibrated) and idle at about 32-33c

NB never seems to go much over 30-35c

there may be an issue that the exhaust fan + cpu cooler are working so well in a push/pull config that the psu air intake is unable to draw much air and hence overheating... though the problem is compounded i guess by the fact its operating at 85% ish

The link does not work this is what I get: Sorry there has been an Error.

Product Details :: evilgaming.co.uk

Though I suspect you do want a good name brand PSU and that's a great idea especially if the old one is not a good one.

As for your case not being able to draw air: I think only if obstructed even though you didn't name the case. The reason I think that is if you have that many fans the case is probably new and designed for good air flow and you usually don't need to worry about intake if you have a good exhaust. It is just physics that air will rush in if not obstructed.

I understand why you think the PSU is the problem if the system is shutting down at those temps.

You probably know the top brands without being told but I would read up and these are the best places on the net for PSU reviews:

[H] Enthusiast --- enthusiast.hardocp.com

JonnyGURU.com - Power Supply Reviews and more! - News

Uncomplicating the Complicated | Hardware Secrets

My opinion??? Corsair. Always top designs with the best parts with a decent price, practically always rebates and excellent customer service. They always offer to replace the unit if there are any problems even if its not the PSU.

[Merman]

Re: Can someone confirm my power supply is up the creek?!

Wow! What you are doing with your E7200? 1.3250v?
Typo error or are you trying to suicide your CPU?

Bring down that BIOS voltage to 1.27, max. Probably your issue is related to temperature shutdown.

That's well within spec.

[dylan0451]

Re: Can someone confirm my power supply is up the creek?!

Wow! What you are doing with your E7200? 1.3250v?
Typo error or are you trying to suicide your CPU?

Bring down that BIOS voltage to 1.27, max. Probably your issue is related to temperature shutdown.

are you trying to scare me!!!

i had to read that twice + check the intel cpu specs!

apparentely 1.3625v is max, though i've heard people running them up to 1.45v!


just ordered me a silencer 750, rekon i'm gonna have to fabricate a divider to stop the psu intake being starved of air

[svcglobal]

Re: Can someone confirm my power supply is up the creek?!

Yes, it is in the INTEL manufactoring range but that info is not final.
The max voltage is printed in its box and strongly dependent of the CPU batch.
I did tests, Gigabyte board, with the E7200 up to 4.0GHz with BIOS @ 1.27v completely stable with OCCT and Prime95. And, if the cooler in question is not a great one, the CPU will be toasted.

See below the shipping box of my CPU with the info of 1.25v max. Check yours and see by yourself.

[VorLonUK]

Re: Can someone confirm my power supply is up the creek?!

Seeing that you posted a PCworld link I assume you are in the UK (like myself)

I would recommend getting a Corsair PSU from ebuyer. They are Seasonic or CWT built, quiet, 5 yr warranty and packed exceptionally well.

Cheap Computer Power Supplies at Ebuyer - Huge Range In Stock Now!

I've linked to them in price order - these are decent supplies.

Adding to SVCGlobal comments, the VID is the method the chip uses to "talk" to the bios and say I need x amount of volts. I believe (i may be wrong) that the max figure on the box, is max VID, ie for the batch.

http://download.intel.com/design/processor/datashts/318732.pdf

I have noted that Everest shows the chips programmed VID, although I don't know how accurate Everest is.

According to the data sheet, the Absolute Maximum Voltage for your chip is 1.45volts. (page 17)

Real Temp will give you your VID range too.

http://www.techpowerup.com/realtemp/

[Merman]

Re: Can someone confirm my power supply is up the creek?!

Yes, it is in the INTEL manufactoring range but that info is not final.
The max voltage is printed in its box and strongly dependent of the CPU batch.
I did tests, Gigabyte board, with the E7200 up to 4.0GHz with BIOS @ 1.27v completely stable with OCCT and Prime95. And, if the cooler in question is not a great one, the CPU will be toasted.

See below the shipping box of my CPU with the info of 1.25v max. Check yours and see by yourself.

Intel is conservative but you saw for yourself the max voltage recommended is 1.3625volts. That is the same for most all 45 nm processors even though the boxes read 1.25 or 1.225 volts. This amount is echoed in the processors' datasheet.

2.6.2 DC Voltage and Current Specification

Table 4. Voltage and Current Specifications

Symbol Parameter Min Typ Max Unit Notes

2, 10

http://download.intel.com/design/pro...hts/318732.pdf

As noted its section 2.6.2

This is also the maximum voltage to set in bios. With V-offset and V-droop the processor runs at lower voltage. As the OP states the voltages are 1.295 and spikes are restricted to 1.3250.

[Merman]

Re: Can someone confirm my power supply is up the creek?!

E7200 duo 9.5 multi 395fsb - 3.7ghz - 1.3250v bios, 1.295v cpu-z, 1.280v cpu-z load

P35-DS3L - +0.1 all voltage bar mch which is +0.2

Looking at those CPU voltages V-offset .03v and and V-droop .045v are very low. Did you do a V-droop modification???

[svcglobal]

Re: Can someone confirm my power supply is up the creek?!

What I said is every batch have its own operational VID (see table).
It is impossible to INTEL to made a chip with zillions of transistors all exactly the same so, they use the batch and every batch have its own VID.
So, in my case (see photo), the VID informed by my CPU to the mobo is 0.875v and 43% of this value (not conservative at all!) is approximately 1.25v.
Then, let's suppose another E7200 batch with VID @ 0.975v - now this one and only this one will accept 1.39v maximum.
But I can't use 1.39v without risk of stress my CPU.

That is not a general recommended voltage, what you saw are the limit maximum and minimum that every motherboard maker must add in every board they sell.
Engineering data can't be used without the correct interpretation, you know.

[VorLonUK]

Re: Can someone confirm my power supply is up the creek?!

What I said is every batch have its own operational VID (see table).
It is impossible to INTEL to made a chip with zillions of transistors all exactly the same so, they use the batch and every batch have its own VID.
So, in my case (see photo), the VID informed by my CPU to the mobo is 0.875v and 43% of this value (not conservative at all!) is approximately 1.25v.
Then, let's suppose another E7200 batch with VID @ 0.975v - now this one and only this one will accept 1.39v maximum.
But I can't use 1.39v without risk of stress my CPU.

That is not a general recommended voltage, what you saw are the limit maximum and minimum that every motherboard maker must add in every board they sell.
Engineering data can't be used without the correct interpretation, you know.

Nevertheless, the Absolute Maximum Voltage (VCC) for the E7200 is 1.45volts. I wouldn't recommend anyone ran it at that (not long term anyway), but that IS Intels specification.

http://download.intel.com/design/processor/datashts/318732.pdf

PAGE 17

Out of Interest - Have you checked your actual VID ie within the chips range to see how that compares to the box info, with :-

Real Temp shows the actual VID, allowing you to know how could your silicon is.
techPowerUp! :: Download Real Temp 2.70

[svcglobal]

Re: Can someone confirm my power supply is up the creek?!

Part of the email just received from Mr. Roger Razinsky, Intel support engineer at Santa Clara, that answered for more info about VID interpretation:

""Each processor is programmed with a maximum valid voltage identification value (VID), which is set at manufacturing and can not be altered. Individual maximum VID values are calibrated during manufacturing such that two processors at the same frequency may have different settings within the VID range."

[VorLonUK]

Re: Can someone confirm my power supply is up the creek?!

Part of the email just received from Mr. Roger Razinsky, Intel support engineer at Santa Clara, that answered for more info about VID interpretation:

""Each processor is programmed with a maximum valid voltage identification value (VID), which is set at manufacturing and can not be altered. Individual maximum VID values are calibrated during manufacturing such that two processors at the same frequency may have different settings within the VID range."

.....that too is a quote from the data sheet ;) - nothing new there...

The VID range for a given model is obviously wide enough to cater for what ever is churned out from the Intel production line.
The VID is then interogated by the bios and the correct voltage is reported back so that chip can be supplied with the neccessary voltage to operate correctly.

Obviously if your CPU has a low VID (within the products range), then you've got a quality chip.

However according to Intel documetation Absolute maximum VCC remains the same for any given VID.